US3674205A - Multiple color paint spray system - Google Patents
Multiple color paint spray system Download PDFInfo
- Publication number
- US3674205A US3674205A US143309A US3674205DA US3674205A US 3674205 A US3674205 A US 3674205A US 143309 A US143309 A US 143309A US 3674205D A US3674205D A US 3674205DA US 3674205 A US3674205 A US 3674205A
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- United States
- Prior art keywords
- manifold
- paint
- color
- fluid
- valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
- B05B12/149—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet characterised by colour change manifolds or valves therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
- Y10T137/4245—Cleaning or steam sterilizing
- Y10T137/4259—With separate material addition
Definitions
- a multiple color paint spray system for sequentially supplying selected ones of a plurality of colors to a single spray outlet.
- a pair of parallel paint manifolds are each connected to the sources of a plurality of colored paints and a solvent. Both manifolds are connected to a single spray gun through a two position valve or to a group of guns each having its two position valve.
- a four-way valve is used to simultaneously supply paint of one color to the gun from one manifold to carry the solvent purge from the second manifold to a disposal source.
- P'A'TENTEDJuL 41912 sum 2 0F 2 MANN-OLD CONTROL AIR SUPPLY MANIFOLD I Puke:
- This invention relates to a paint spray system in which a plurality of paints may be selectively supplied one at a time to a single spray outlet or to each gun of a multiple gun installation. More particularly the invention is a spray paint control system for selectively supplying to the spray outlet one of a number of colored paints and for rapidly changing from one color to another.
- the invention may be used with electrostatic or conventional spray installations and is particularly useful in high speed finishing applications in which a series of articles to be sprayed or coated are sequentially passed through a coating zone. In such systems, such as in the paintingof automotive parts, it is desirable to finish a number of parts in one color and then to rapidly change to another color. The rapid change is, of course, important to prevent the necessity of stopping or slowing the conveyor or leaving a gap between parts on the conveyor while the change-over is taking place.
- This invention provides a control system for a paint spray apparatus which is capable of rapidly switching from one selected paint color to another, which includes a means for providing a solvent purge to remove paint residue from the entire system except for the relatively short passages within the spray gun itself and which does not allow any solvent to enter the spray zone.
- a dump valve Positioned adjacent the manifold selector valve and in the line connecting it to the manifold is a dump valve for each manifold which, in one position, allows the paint from that manifold to the manifold selector valve and, in the other position, directs paint from that manifold to a waste dump, bypassing the manifold selector valve.
- a four-way manifold selector valve is used to simultaneously supply paint of one color to the gun from one manifold and direct a solvent purge from the second manifold to a disposal source.
- FIG. 1 is a schematic diagram of the dual manifold paint supply system of this invention, showing paint manifolds I and II each connected to a pressurized source of air, solvent, and paint colors A-D. The outlets of the manifolds I and II are shown connected to a single spray gun through the manifold selector valve.
- FIG. 2 is a schematic diagram of a second embodiment of the dual manifold paint supply system of the invention showing the outlets of manifolds I and II connected to a four-way manifold selector valve.
- each manifold is formed by a plurality of valve segments which are secured together in a row to form an elongated manifold having a common flow passage extending throughout its length.
- a series of inlet valves each one contained in a valve segment, is connected to the flow passage 10 from top to bottom.
- Each of the corresponding inlet valves in each of the manifolds is connected through fluid supply lines 12-17 to a pressurized source of air, solvent and paint colors A-D.
- any number of paint colors can be utilized in this system with larger manifolds which provide a separate fluid inlet valve for each individual paint color and that the illustrated system which includes onlyair, solvent and four paint colors is not intended to limit the number of fluids which may be controlled using the principles of the present system.
- Each of the fluid inlet valves is pneumatically controlled by an air cylinder which, when actuated, moves to the left in the drawing of manifold II to open the fluid inlet valve for flow from the fluid supply controlled by that valve to the flow passage 10 within the manifold.
- the inlet valves and air cylinder for manifold I are designated as l-air, I-S (solvent), lA, etc. while the inlet valves and air cylinders for manifold II are designated in a similar manner.
- Each of the air cylinders controlling the inlet valves are connected to a source of control air pressure through air lines 18 and 19 leading from a control air supply to branched air headers, each of which are connected to the appropriate air cylinder through electrically controlled air valves 20-31 as indicated.
- a visual indicator 32 may be connected in each header line between the air valves 20-31 and the appropriate air cylinder.
- the indicators 32 provide a visual indication of the position, open or closed, of the ap limbate paint inlet valve. It is apparent that the fluid inlet valves could also be electrically controlled using a solenoid winding directly acting upon the valves.
- the manifold outlet line 11 from each of the manifolds I and II is connected to a manifold selector valve which is a two position valve for alternately connecting one or the other of the manifolds I or II to the spray gun through a spray gun supply line 33.
- the position of the manifold selector valve is shown as connecting manifold II to the gun supply line 33.
- the manifold selector valve is pneumatically controlled through air control lines 34 and 35 which are connected to the control air line 18 through a branch line 36 and an electrically controlled air valve 37.
- the air valve 37 as shown in its lower position, connects control air pressure to the line 34 while, in the upper, dotted line position, the control air is connected to the air control line 35 which will move the manifold selector valve to its other position to connect paint manifold I to the gun.
- a pair of bypass or dump valves I and II are connected to the respective manifold outlet lines 11 on either side of the manifold selector valve as shown.
- the dump valves I and II are pneumatically controlled by electrically controlled air valves 38 and 39 and have an open position, in which the manifold outlets 11 are connected to a dump line 40 which leads to a waste collector 41. In their closed position, the dump valves I and II close communication between the dump line 40 and the manifold outlet lines 1 1.
- the position of the dump valves I and II is shown by indicators 42.
- the dump valves I and II and the manifold selector valve could also be controlled electrically.
- the supply of control air to each of the air solvent and paint inlet valves in both manifolds, the manifold selector valve, and the two dump valves I and II is electrically controlled so that a valve control apparatus can be positioned in a control station remote from the spray booth.
- the electrical control apparatus can be a manually operated push button type in which the operator has an appropriate button for changing the position of each of the valves so that any desired operating sequence, as will be subsequently explained, can be manually controlled by the operator
- the electrical control for the control air to the valve includes an automatic or semi-automatic cycling device which is preprogrammed in accordance with the speed of the conveyor carrying the articles through the spray booth and desired color variations for those articles so that semior fully automatic color change can be preprogrammed into the electrical control apparatus.
- an Edon Chain which is marketed by the Edon Industrial Products Company, 2891 Industrial Row, Troy, Mich. 48084.
- This device is a driven endless chain having a plurality of movable pins which can be placed along the chain to actuate electrical switches positioned in the path of the pins to open or close circuitry to control the position of the fluid valves in the color change system thus described.
- Other electro-mechanical memory devices including punch card or tape controlled computers may be readily adapted to program the desired sequence of valve operation in the previously described system and will be apparent to those skilled in the art.
- the manifold selector valve moves to its alternate position to connect manifold I to the spray gun through line 33. This of course cuts off manifold II and the gun changes to paint B as soon as the remaining paint A is pushed out of line 33 through the spray gun.
- Inlet valve II-A closes and inlet valve II-S opens so that solvent purges the common flow passage 10 through manifold II, pushing paint A out the dump valve II into dump line 40 to the waste collector 41.
- Inlet valve II-S closes and inlet valve Il-C opens, so that the new paint color C pushes solvent out through the dump valve II to fill the lines leading to the manifold selector valve with paint C.
- EXAMPLE II Again assume that paint A being supplied to the gun through manifold II with the manifold selector valve in the position as shown. Assume that manifold I has been preconditioned and filled with paint B, as described with reference to Example I. With the electrical control programmed to switch from paint A to paint B and later to paint C, the following sequence of valve operation takes place:
- Inlet valve II-A closes and valve II-S opens. In this condition, solvent pushes paint A through the common flow passage 10 of manifold II towards the manifold selector valve.
- the manifold selector valve moves to its alternate position to connect manifold I and paint B to the spray gun. This stops the flow of solvent through the manifold outlet line 11 until dump valve II is opened.
- the time delay between the opening of the solvent valve 11-8 and the switching of the manifold selector valve is such that the solvent which is purging paint A from manifold II will completely clear manifold II itself but will not reach the manifold selector valve.
- This time interval is of course dependent upon the length of the manifold outlet 11, and the rate of paint flow and is easily determined for a given installation.
- This system has the advantage in that while paint A in the manifold is being purged by the solvent, most of the paint A in the system ahead of the solvent is pushed out to the spray gun, thus reducing the amount of paint loss in a color changeover.
- Valve Il-S closes and valve II-C opens so that paint C pushes solvent out of the manifold II and manifold outlet line 11 through the dump valve II.
- Dump valve II closes so that manifold II is now preconditioned to immediately supply paint C as soon as the manifold selector valve is again switched to its position shown in the drawing.
- the dual manifold system has the advantage of providing almost instantaneous change from one color to another. Because each of the manifolds is being purged and conditioned with a subsequent paint while the other manifold is still supplying a desired paint to the spray gun, the amount of time for an effective color change is substantially reduced. For example, using a built up manifold of 45 inches in length, the volume within the inanifolds internal passages is about 70 cc. When changing from one color to another with an intermediate solvent change, the replaced liquid must be scrubbed in effect by the subsequent liquid so that several volume changes within the manifold are necessary.
- the complete color change can be effected in approximately 2-3 seconds, depending upon the length of the paint supply line 33. It is to be understood that the only time delay in changing from one paint to another in the instant system is that required to flow the new paint through the line 33 to the gun. By positioning the manifold selector valve as close as is possible to the gun, this time is reduced to a minimum.
- the source of solvent may be under a pressure higher than that of thepaint sources so that supply line 13 and solvent flowing through the manifolds I and II when the valves 1-8 or II-S are open is under higher pressure and thus flows at a higher rate.
- the higher solvent pressure also improves the purging action inthe interior of the manifolds. Such increased solvent pressure does not present any undesirable fire hazards in the present system because no solvent flows through the gun, as would be the case with prior art color change systems.
- An air purge to dry the manifold interior and prevent solvent dilution may be included in the present system, using a source of air under pressure connected to the manifold I and II as shown in the drawing. If an air purge following the solvent purge is desired, the operating sequence of Examples I and II would include the step of closing the appropriate solvent inlet valve and opening the appropriate air inlet valve for a predetermined time to push out solvent with air. Finally, it should be noted that in each case, the solvent and air inlet valves are positioned in the manifold at the end remote from the manifold outlet line 11 so that solvent and air purges are effective to scrub the entire length of the common flow channel 10 in the manifolds.
- timing of valve movements in the sequence described in Examples I and Il may be varied to fit the desired installation to attain the advantages provided by the dual manifold system of this invention.
- the timing and sequence of opening and closing each of the valves is, of course, dependent upon the frequency with which the articles to be sprayed are presented in the spray zone and the particular selection of color sequence is, of course, dependent upon the desired color output for the articles being coated.
- a second embodiment substantially similar in function and structure to the first embodiment described above is shown.
- a four-way manifold selector valve 43 is positioned between the outlet lines 11 from manifolds I and II.
- the four-way manifold selector valve 43 combines the functions of the manifold selector valve and the dump valves I and II shown in FIG. 1.
- the four-way valve 43 comprises a body 44 having a valve inlet 45 connected to the manifold outlet 11 from manifold l and a valve inlet 46 connected to the manifold outlet 11 from manifold II; a spray gun supply outlet 47 and a waste disposal outlet 48.
- a rotatable cylindrical valve member 49 is located within a complementary bore 50 in the body 44. Two curved passageways 51 within the cylindrical valve member 49 provide fluid communication simultaneously from one of the valve inlets 45 or 46 to the gun supply outlet 47 and from the other of the inlets 45 or 46 to the waste disposal outlet 48.
- valve member 49 may be rotated by air actuated means to alternatively direct fluid selected from a color source in one of the manifolds, as described above, to the gun supply outlet 47 and purging fluid from the second manifold to the waste disposal outlet 48.
- a single dump valve 52 downstream of the waste disposal outlet 47 provides a means for controlling fluid flow from the purging manifold to the waste collector 41.
- the cylindrical valve member 49 is rotated to place the manifold outlet 11 from manifold I in fluid communication with. the spray gun supply outlet 47. Since the selected color from manifold, I is already in the manifold outlet line 11 prior to shifting the four-way valve, the new color will rapidly enter the gun supply line 33 and the gun when the valve 43 is shifted. Shifting of the four-way valve 43 will also place manifold II in fluid communication with the waste disposal outlet 48 as described. The purging cycle is now initiated in manifold II.
- the four-way valve 43 provides means for simultaneously directing a selected color to the spray gun from one manifold and purging fluid to the waste' collector 41 from the second manifold and means for realigning the manifold outlets 11 to exchange color supply and purging cycles from one manifold to the other.
- a fluid control system for supplying a selected one of a plurality of fluids to a single outlet with means for rapidly changing from one selected fluid to another comprising, in combination, a single fluid outlet, a first fluid manifold having a manifold outlet and connected to the source of each of said plurality of fluids, a second manifold having a manifold outlet and connected to said source of each of said plurality of fluids, a plurality of inlet valves for individually controllingfluid flow from each fluid source into each of said manifolds, a manifold selector valve operably connecting either said first or said second manifold outlets to said single fluid outlet, a first and a second dump valve positioned, respectively, in said first and second manifold outlets upstream of said manifold selector valve whereby, while one fluid is supplied to said single fluid outlet through said first manifold, said second manifold can be preconditioned to supply another fluid by opening said second dump valve and filling said second manifold and its manifold outlet up to said open dump valve
- the fluid control system of claim 1 which further includes means for purging said manifolds with air to remove all other fluids therefrom.
- the fluid control system of claim 1 which includes means to close the fluid inlet valve to said first manifold to terminate flow of one fluid and to open another inlet valve to initiate flow of another fluid in said first manifold for a predetermined time prior to shitting said manifold selector valve to initiate fluid flow from said second manifold to said single fluid outlet.
- a multiple color spray paint system for supplying to a spray gun a selected paint color from. one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination, a pair of paint manifolds each having a manifold outlet and each connected to the source of each of a plurality of paint colors, a plurality of paint inlet valves for individually controlling paint flow of each color paint into each of said pair of paint manifolds, a
- manifold selector valve operably connecting one or the other of said manifold outlets to said spray gun, and a dump valve in each of said manifold outlets upstream of said manifold selector valve whereby, while a first color paint is supplied to said spray gun through one manifold, the other of said manifolds can be preconditioned to supply another color paint by opening said dump valve in said other manifold outlet and filling said other manifold and said other manifold outlet up to said open dump valve with said other color paint.
- the multiple color spray paint system of claim which further includes means for purging said manifolds with air to remove all other fluids therefrom.
- the multiple color spray paint system of claim 5 which further includes a source of paint solvent connected to each of said manifolds through a pair of solvent inlet valves and means to close the paint inlet valve to said one manifold to terminate flow of said first color paint and to open the solvent inlet valve to said one manifold to initiate flow of solvent in said one manifold for a predetermined time prior to shifting said manifold selector valve to initiate flow of said other color paint from said other manifold to said spray gun.
- the multiple color spray paint system of claim 7 which further includes means for opening said dump valve of said one manifold after shifting said manifold selector valve to initiate flow of said other color paint from said other manifold.
- a method of supplying a selected one of a plurality of color paints and for shifting from such selected one paint to another selected paint and supplying it to a paint spray gun from a pair of paint manifolds each having a valved connection to each of said color paint sources and a valved connection to a source of solvent with said manifolds alternately connected to said gun through a manifold selector valve and with each manifold having a dump valve upstream of said manifold selector valve comprising the steps of sequentially (1) closing the valve supplying said selected one color to the one manifold connected to said spray gun and opening the solvent valve to that manifold to initiate flow of solvent through that manifold toward said spray gun, (2) moving said manifold selector valve to connect said other manifold to said spray gun to terminate flow of solvent toward said spray gun, (3) and opening the dump valve of said one manifold to direct solvent flow therethrough.
- the method of claim 9 which further includes the steps of (4) opening a paint inlet valve to initiate flow of another selected color paint from its source into said one manifold and (5) subsequently closing the dump valve of said one manifold after filling said one manifold with said other selected color paint.
- a multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination,
- each paint manifold for individually controlling flow of paint from said paint sources to said common flow passage of said manifold
- a manifold selector valve for alternately connecting one or the other of said manifold outlets to such spray gun and a dump valve between said manifold selector valve and the manifold outlet of each paint manifold.
- the multiple color spray system of claim 11 which further includes means for automatically purging one of said manifolds with solvent through its associated dump valve and for filling it with another selected color paint while said other manifold is supplying paint of a selected color through said manifold selector valve to said gun.
- the multiple color spray system of claim 11 which further includes means for opening the dump valve and the solvent inlet valve to the manifold supplying paint to said gun a predetermined time prior to shifting said manifold selector valve to connect said other manifold to said gun.
- a fluid control system for supplying a selected one of a plurality of fluids to a single outlet with means for rapidly changing from one selected fluid to another comprising, in combination, a single fluid outlet, a first fluid manifold having a manifold outlet and connected to the source of each of said plurality of fluids, a second manifold having a manifold outlet and connected to said source of each of said plurality of fluids, a plurality of inlet valves for individually controlling fluid flow from each fluid source into each of said manifolds, a four-way selector valve simultaneously operably connecting one of said manifold outlets to said single fluid outlet and the other of said manifold outlets to a waste outlet, whereby, while one fluid is supplied to said single fluid outlet through said first manifold, said second manifold can be preconditioned to supply another fluid by filling said second manifold and its manifold outlet up to said waste outlet with said other fluid.
- the fluid control system of claim 14 which includes means to close the fluid inlet valve to said first manifold to terrninate flow of one fluid and to open another inlet valve to initiate flow of another fluid in said first manifold for a predetermined time prior to shifting said four-way selector valve to initiate fluid flow from said second manifold to said single fluid outlet and from said first manifold to said waste outlet.
- a multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination, a pair of paint manifolds each having a manifold outlet and each connected to the source of each of a plurality of paint colors, a plurality of paint inlet valves for individually controlling paint flow of each color paint into each of said pair of paint manifolds, a fourway selector valve operably connecting one of said manifold outlets to said spray gun and the other of said manifold outlets to a waste outlet whereby, while a first color paint is supplied to said spray gun through one manifold, the other of said manifolds can be preconditioned to supply another color paint by filling said other manifold and said other manifold outlet up to said waste outlet with said other color paint.
- the multiple color spray paint system of claim 17 which further includes means for purging said manifolds with air to remove all other fluids therefrom.
- the multiple color spray paint system of claim 17 which further includes a source of paint solvent connected to each of said manifolds through a pair of solvent inlet valves and means to close the paint inlet valve to said one manifold to terminate flow of said first color paint and to open the solvent inlet valve to said one manifold to initiate flow of solvent in said one manifold for a predetermined time prior to shifting said fourway valve to initiate flow of said other color paint from said other manifold to said spray gun.
- a multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination,
- each paint manifold for individually controlling flow of paint from said paint sources to said common flow passage of said manifold
- a four-way manifold selector valve for alternately connecting one or the other of said manifold outlets to such spray gun and simultaneously connecting the remaining one of said manifold outlets to a waste outlet.
- the multiple color spray system of claim 20 which further includes means for automatically purging one of said manifolds with solvent through said four-way selector valve and said waste outlet and for filling it with another selected color paint while said other manifold is supplying paint of a selected color through said four-way manifold selector valve to said gun.
- a method of supplying a selected one of a plurality of color paints and for shifting from such selected one paint to another selected paint and supplying it to a paint spray gun from a pair of paint manifolds each having a valved connection to each of said color paint sources and a valved connection to a source of solvent with said manifolds alternately connected to said gun through a selector valve comprising the steps of sequentially (1) closing the valve supplying said selected one color to the one manifold connected to said spray gun and opening the solvent valve to that manifold to initiate flow of solvent through that manifold toward said spray gun, (2) shifting said manifold selector valve to connect said other manifold to said spray gun and to terminate flow of solvent toward said spray gun and to connect said one manifold to said waste outlet to direct solvent flow therethrough.
- a multiple color paint spraying system comprising, in combination, a first manifold and a second manifold, a plurality of fluid inlet conduits in fluid communication with each of said manifolds, a manifold outlet conduit extending from each of said manifolds to a common selector valve downstream of said manifolds, a paint spray outlet and a waste disposal outlet operably connected to said selector valve, and means for alternately directing the flow of one fluid from one of said fluid inlet conduits through one of said manifolds to said paint spray outlet and the flow of a second fluid from another of said fluid inlet conduits through the other of said manifolds to said waste disposal outlet.
Abstract
Description
Claims (23)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US14330971A | 1971-05-14 | 1971-05-14 |
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US3674205A true US3674205A (en) | 1972-07-04 |
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US143309A Expired - Lifetime US3674205A (en) | 1971-05-14 | 1971-05-14 | Multiple color paint spray system |
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Cited By (70)
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US6112999A (en) * | 1998-11-13 | 2000-09-05 | Steelcase Development Inc. | Powder paint system and control thereof |
US6116261A (en) * | 1999-05-13 | 2000-09-12 | Rosen; Paul W. | Solvent and air mixing system with air bleed backflow |
US6227228B1 (en) * | 1996-08-02 | 2001-05-08 | Graco Minnesota Inc. | Purge process for sequential plural component mixing system |
US6254363B1 (en) | 2000-01-20 | 2001-07-03 | M. A. Hannacolor, A Division Of M. A. Hanna Company | Liquid colorant tube assembly |
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US10300504B2 (en) * | 2013-07-19 | 2019-05-28 | Graco Minnesota Inc. | Spray system pump wash sequence |
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US3857513A (en) * | 1967-10-20 | 1974-12-31 | Gyromat Corp | Semi-automatic color change system for paint spray installation |
US3947228A (en) * | 1974-02-19 | 1976-03-30 | Gotaverken Angteknik Ab | Means for burning a liquid fuel |
US3939855A (en) * | 1974-05-10 | 1976-02-24 | The Gyromat Corporation | Recovery system for spray painting installation with automatic color change |
US4163523A (en) * | 1976-12-15 | 1979-08-07 | Vincent Raymond A | Multicolor paint dispensing system having a pressure responsive color change valve |
US4358026A (en) * | 1977-01-17 | 1982-11-09 | Itp Associates Ag | Apparatus and process for dispensing liquid preparations |
US4290442A (en) * | 1978-03-01 | 1981-09-22 | Sparkle Wash, Inc. | Mobile cleaning unit |
US4215721A (en) * | 1978-12-11 | 1980-08-05 | Poly-Glas Systems | Modular multiple-fluid component selection and delivery system |
US4281683A (en) * | 1978-12-11 | 1981-08-04 | Poly-Glas Systems | Modular multiple-fluid component selection and delivery system |
US4245785A (en) * | 1979-02-22 | 1981-01-20 | Johansing Jr Paul G | System for spraying liquid emulsion and solvent therefor |
DE3130096A1 (en) * | 1980-08-04 | 1982-05-19 | Ransburg Japan, Ltd., Tokyo | DEVICE FOR ELECTRIC COATING AND METHOD FOR CHANGING COLORS IN SUCH A DEVICE |
US4422576A (en) * | 1980-08-04 | 1983-12-27 | Ransburg Japan, Ltd. | Electrostatic coating machine and method of changing color of paints thereby |
US4508266A (en) * | 1980-08-04 | 1985-04-02 | Ransburg Japan, Ltd. | Method of changing color of paints for an electrostatic coating machine |
US4337282A (en) * | 1980-08-12 | 1982-06-29 | Binks Manufacturing Co. | Color change system for spray coating apparatus |
US4375865A (en) * | 1980-08-12 | 1983-03-08 | Binks Manufacturing Company | Color change system for spray coating apparatus |
US4592305A (en) * | 1981-01-26 | 1986-06-03 | Ransburg Corporation | Variable low-pressure fluid color change cycle |
USRE32151E (en) * | 1981-01-26 | 1986-05-20 | Ransburg Corporation | Variable low-pressure fluid color change cycle |
US4534717A (en) * | 1981-05-01 | 1985-08-13 | Ford Motor Company | Flushable metering pump |
US4403736A (en) * | 1981-11-30 | 1983-09-13 | Ransburg Corporation | Uncontaminated purge solvent recovery system |
US4440320A (en) * | 1981-11-30 | 1984-04-03 | Wernicke Steven A | Foam dispensing apparatus |
US4509684A (en) * | 1982-09-30 | 1985-04-09 | Ford Motor Company | Color change apparatus |
WO1984001312A1 (en) * | 1982-09-30 | 1984-04-12 | Ford Werke Ag | Color change apparatus |
EP0106586A3 (en) * | 1982-10-14 | 1985-08-07 | General Motors Corporation | Paint colour change system |
US4487367A (en) * | 1982-10-14 | 1984-12-11 | General Motors Corporation | Paint color change and flow control system |
EP0106586A2 (en) * | 1982-10-14 | 1984-04-25 | General Motors Corporation | Paint colour change system |
WO1985001095A1 (en) * | 1983-09-06 | 1985-03-14 | Advanced Micro Devices, Inc. | Process gas controller |
US4554942A (en) * | 1983-09-06 | 1985-11-26 | Advanced Micro Devices, Inc. | Process gas controller |
US4549676A (en) * | 1983-09-16 | 1985-10-29 | Horst Gerich | Liquid mixing and purging apparatus |
EP0166092A1 (en) * | 1984-06-22 | 1986-01-02 | J. Wagner GmbH | Method and apparatus for adjusting a flow control valve of a paint spray gun |
US4830055A (en) * | 1984-12-10 | 1989-05-16 | Nordson Corporation | Circulating and dead end color changer with improved valves and manifolds |
US4657047A (en) * | 1984-12-10 | 1987-04-14 | Nordson Corporation | Modular color changers with improved valves and manifolds |
US4723712A (en) * | 1985-05-13 | 1988-02-09 | Jean Egli | Variable colorant blender |
US4603655A (en) * | 1985-05-13 | 1986-08-05 | Ryco Graphic Manufacturing, Inc. | Liquid applicator for a printing press |
US4728034A (en) * | 1986-02-06 | 1988-03-01 | Trinity Industrial Corporation | Cleaning device upon color-change in an electrostatic mutli-color coating apparatus |
US4791946A (en) * | 1987-07-16 | 1988-12-20 | Binks Manufacturing Company | Alternating selectable cleaning fluid to air purging system |
US4993353A (en) * | 1987-08-18 | 1991-02-19 | Mazda Motor Corporation | Automatic color change paint spray system |
US4792092A (en) * | 1987-11-18 | 1988-12-20 | The Devilbiss Company | Paint color change system |
FR2628657A1 (en) * | 1988-03-16 | 1989-09-22 | Peugeot | PILOTED PROJECTION INSTALLATION OF PAINT OR THE LIKE, WITH FREQUENT COLOR CHANGE, IN PARTICULAR FOR THE AUTOMOTIVE INDUSTRY |
EP0338871A1 (en) * | 1988-03-16 | 1989-10-25 | Automobiles Peugeot | Controlled paint spray installation using frequent colour changes, in particular for the motor car industry |
US4932589A (en) * | 1988-09-30 | 1990-06-12 | Binks Manufacturing Company | Method of and apparatus for electrical isolation of electrostatic sprayers |
US4848384A (en) * | 1989-01-30 | 1989-07-18 | Staley Electric Company | Motor vehicle washing system with automatic sequencing of different cleaning liquids |
US5109682A (en) * | 1989-08-29 | 1992-05-05 | Color Service Srl | Apparatus for the preparation and distribution of dye solutions in dyeing plants |
US5102046A (en) * | 1989-10-30 | 1992-04-07 | Binks Manufacturing Company | Color change systems for electrostatic spray coating apparatus |
US5029755A (en) * | 1990-02-12 | 1991-07-09 | Motoman, Inc. | Paint color change system |
EP0452819A1 (en) * | 1990-04-19 | 1991-10-23 | MOTAN SWINGTEC GmbH | Coating device, especially spraying- or aerosol generator |
US5146950A (en) * | 1990-07-11 | 1992-09-15 | Ransburg Corporation | Modular plastic color changer |
US5102045A (en) * | 1991-02-26 | 1992-04-07 | Binks Manufacturing Company | Apparatus for and method of metering coating material in an electrostatic spraying system |
US5571562A (en) * | 1991-10-30 | 1996-11-05 | Master Coating Technologies, Inc. | Method of producing a multi-patterned coating |
DE4214778A1 (en) * | 1992-05-04 | 1993-11-11 | Flaekt Ransburg Bmbh | Paint processing and residue removing from paint paths - by applying cleaning liq. to each unused paint change and to common feed to spray atomisers |
EP0650462A1 (en) * | 1993-03-25 | 1995-05-03 | Fluid Management Limited Partnership | Dispensing apparatus |
EP0650462A4 (en) * | 1993-03-25 | 1995-09-27 | Fluid Management Lp | Dispensing apparatus. |
US5660201A (en) * | 1993-12-21 | 1997-08-26 | Lockheed Martin Idaho Technologies Company | Multiple source/multiple target fluid transfer apparatus |
US5944045A (en) * | 1994-07-12 | 1999-08-31 | Ransburg Corporation | Solvent circuit |
US5813608A (en) * | 1995-01-10 | 1998-09-29 | Mazda Motor Corporation | Multi-color rotary spraygun and method of cleaning the same |
US5851292A (en) * | 1995-11-20 | 1998-12-22 | Honda Giken Kogyo Kabushiki Kaisha | Electrostatic coating method and apparatus |
US5776249A (en) * | 1995-12-23 | 1998-07-07 | Gema Volstatic Ag | Powder spray coating device |
US6227228B1 (en) * | 1996-08-02 | 2001-05-08 | Graco Minnesota Inc. | Purge process for sequential plural component mixing system |
US5803109A (en) * | 1997-04-08 | 1998-09-08 | Rosen; Paul W. | Solvent and air mixing system |
US6336468B1 (en) * | 1998-01-30 | 2002-01-08 | Diverseylever, Inc. | Chemical supply tube isolation system |
US6112999A (en) * | 1998-11-13 | 2000-09-05 | Steelcase Development Inc. | Powder paint system and control thereof |
US6705545B1 (en) | 1998-11-13 | 2004-03-16 | Steelcase Development Corporation | Quick color change powder paint system |
US6315214B1 (en) | 1998-11-13 | 2001-11-13 | Steelcase Development Corporation | Method for controlling powder paint system |
US6116261A (en) * | 1999-05-13 | 2000-09-12 | Rosen; Paul W. | Solvent and air mixing system with air bleed backflow |
US6554204B1 (en) * | 1999-10-08 | 2003-04-29 | Graco Inc. | Integrated gun flush controller |
US6254363B1 (en) | 2000-01-20 | 2001-07-03 | M. A. Hannacolor, A Division Of M. A. Hanna Company | Liquid colorant tube assembly |
US6695220B2 (en) | 2001-01-11 | 2004-02-24 | Herman Miller, Inc. | Powder spray coating system |
US20030111118A1 (en) * | 2001-12-17 | 2003-06-19 | Diana Michael J. | Color changers |
US20060124781A1 (en) * | 2002-03-14 | 2006-06-15 | Ghaffar Kazkaz | Method and apparatus for dispensing coating materials |
US20070181599A1 (en) * | 2002-09-25 | 2007-08-09 | Illinois Tool Works Inc. | Two-component spray gun with solvent flush/blend |
US7954673B2 (en) * | 2002-09-25 | 2011-06-07 | Illinois Tool Works Inc. | Two-component spray gun with solvent flush/blend |
US20050011975A1 (en) * | 2003-07-17 | 2005-01-20 | Baltz James P. | Dual purge manifold |
US6918551B2 (en) | 2003-07-17 | 2005-07-19 | Illinois Tool Works Inc. | Dual purge manifold |
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US20150273507A1 (en) * | 2004-06-03 | 2015-10-01 | Nordson Corporation | Color change for powder coating material application system |
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Owner name: TRUST COMPANY OF CHICAGO,ILLINOIS Free format text: SECURITY INTEREST;ASSIGNOR:DEVILBISS COMPANY;REEL/FRAME:004837/0103 Effective date: 19880227 Owner name: CONTINENTAL ILLINOIS NATIONAL BANK,ILLINOIS Free format text: SECURITY INTEREST;ASSIGNOR:DEVILBISS COMPANY;REEL/FRAME:004837/0103 Effective date: 19880227 Owner name: TRUST COMPANY OF CHICAGO, 231 SOUTH LASALLE STREET Free format text: SECURITY INTEREST;ASSIGNOR:DEVILBISS COMPANY;REEL/FRAME:004837/0103 Effective date: 19880227 Owner name: CONTINENTAL ILLINOIS NATIONAL BANK, 231 SOUTH LASA Free format text: SECURITY INTEREST;ASSIGNOR:DEVILBISS COMPANY;REEL/FRAME:004837/0103 Effective date: 19880227 |
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Owner name: DEVILBISS COMPANY, THE, A CORP. OF DE,OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHAMPION SPARK PLUG COMPANY, A DE CORP.;REEL/FRAME:004842/0257 Effective date: 19880307 Owner name: DEVILBISS COMPANY, THE, TOLEDO, OH, A CORP. OF DE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHAMPION SPARK PLUG COMPANY, A DE CORP.;REEL/FRAME:004842/0257 Effective date: 19880307 |