US3813223A - Screw-on type closure for a bubbler tube - Google Patents

Screw-on type closure for a bubbler tube Download PDF

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Publication number
US3813223A
US3813223A US00357860A US35786073A US3813223A US 3813223 A US3813223 A US 3813223A US 00357860 A US00357860 A US 00357860A US 35786073 A US35786073 A US 35786073A US 3813223 A US3813223 A US 3813223A
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United States
Prior art keywords
closure
tube
bubbler
screw
bubbler tube
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Expired - Lifetime
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US00357860A
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E Fleck
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Diversey Corp USA
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Chemed Corp
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Assigned to DIVERSEY CORPORATION reassignment DIVERSEY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CHEMED CORPORATION
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
    • B01L3/5082—Test tubes per se
    • B01L3/50825—Closing or opening means, corks, bungs

Definitions

  • This invention relates to closures and particularly to a screw-on type cap for a bubbler tube used in gas effluent analyzers.
  • closures for test tubes and the like. Usually, they comprise a stopper of rubber or similar material which is force-fitted into the open end of the tube. Sometimes, the stopper includes holes to permit fluid to enter and exit the body of the tube. However, such a stopper is not completely satisfactory since fluid can leak between the stopper and the tube.
  • a two-hole screw-on type closure according to the present invention is especially useful for bubbler tubes in which fluid such as air is introduced into the inlet tube of the cap, through extending tubing into a fluid to be bubbled and withdrawn through the outlet.
  • fluid such as air
  • the two-hole cap may be removed and replaced by a solid screw-on cap closure for transporting the fluid to another location or for storage.
  • the invention comprises a screw-on type closure for a bubbler tube having integral inlet and outlet tubes.
  • An elongated tubing is seated in one of the inlet and outlet tubes and extends into the body of the bubbler tube.
  • the closure and bubbler tube body are preferably made of plastic material, such as polyethylene or polypropylene, and the bubbler tubing is glass.
  • An additional hole or holes may be provided in the closure, for example to enable a fluid sample to be removed from the bubbler without removing the closure.
  • FIG. 1 is an elevation view of the bubbler tube
  • FIG. 2 is a plan view of the closure
  • FIG. 3 is a bottom view of the closure
  • FIG. 4 is a sectional view taken along lines IV-IV of FIG. 2.
  • a bubbler tube 1 comprises a body 2 having a screw-on closure 3.
  • the body is elongated and closed at one end.
  • the other end of the body is open and has external threads 4.
  • the closure is a screwon type cap having a base 5 with a peripheral extending skirt 6.
  • the skirt has internal threads 7 which engage threads 4 for securing the closure to the body.
  • the base also includes a circular sealing ridge 8 which fits the top of the body 2 to provide a leakproof seal.
  • Two tubes 10 and 11 extend through the base of the cap and are integral therewith.
  • the tubes are approximately the same length above the base; however, tube 10 is substantially longer than tube 11 below the base.
  • One of the tubes may be used as an inlet and the other as an outlet for the bubbler tube.
  • the inlet tube 11 includes a tapered bore 12 for securing an end 13 of a bubbler tubing 14.
  • the tubing is forcefitted within the bore.
  • the upper portion of the tube 11 has a radially inwardly extending shoulder 15 which reduces the diameter of the inlet and serves as a stop against which the end of the tubing seats for preventing it from being forced completely through the inlet tube.
  • the stop also determines the extent to which the tubing extends into the body of the bubbler tube.
  • the outlet tube 10 is of substantially constant crosssection.
  • the openings in the closure may be capped with conventional plastic caps or the closure can be removed and replaced with a standard screw-on type cap having no openings, for transportation or storage of the contents of the bubbler tube.
  • the closure is leakproof; it is easy to manufacture and to assemble. It is also disposable.
  • a screw-on type closure for a bubbler tube comprising a cap having a base and a depending internally threaded-circular skirt, integral inlet and outlet tubes extending through the base, one of the tubes being shorter than the other and including a tapered bore having a radially inwardly extending shoulder on the upper end thereof forming a stop for the upper end for limiting the extent to which a bubbler tubing can be force-fitted in the bore.
  • closure as set forth in claim 1 in which the closure is made of plastic material.
  • a bubbler tube comprising:
  • a closure having a base with a pair of integral tubes extending through said base and a depending circular skirt being internally threaded for engagement with the threads of the tubular body, one of said tubes being longer than the other below the base and having a tapered bore, and

Abstract

A SCREW-ON TYPE CLOSURE FOR A BUBBLER TUBE HAVING INTEGRAL INLET AND OUTLET TUBES. AN ELONGATED FUBING IS SEATED IN ONE OF THE INLET AND OUTLET TUBES AND EXTENDS INTO THE BODY OF THE BUBBLER TUBE.

Description

May 28, 1974 E. E. FLECK SCREW-ON TYPE CLOSURE FOR A BUBBLEB TUBE Filed May '7, 1973 Mill-ll I i w United States Patent Olfice 3,813,223 Patented May 28, 1974 3, 13,223 SCREW-N TYPE CLOSURE FOR A BUBBLER TUBE Elmer E. Fleck, Gibsonia, Pa., assignor to Chemed Corporation, Cincinnati, Ohio Filed May 7, 1973, Ser. No. 357,860 Int. Cl. B01] 3/14; B65d 47/32 US. Cl. 23-259 7 Claims ABSTRACT OF THE DISCLOSURE A screw-on type closure for a bubbler tube having integral inlet and outlet tubes. An elongated tubing is seated in one of the inlet and outlet tubes and extends into the body of the bubbler tube.
This invention relates to closures and particularly to a screw-on type cap for a bubbler tube used in gas effluent analyzers.
There are many types of closures for test tubes and the like. Usually, they comprise a stopper of rubber or similar material which is force-fitted into the open end of the tube. Sometimes, the stopper includes holes to permit fluid to enter and exit the body of the tube. However, such a stopper is not completely satisfactory since fluid can leak between the stopper and the tube.
Recently, screw-on caps have been used to close tubes of the test tube or bubbler type since they are easier to use and provide a leakproof closure. Where it is desirable to provide means for fluid to enter and exit the screw-on caps, holes have been made in the caps. There is available a plastic closure, marketed under the trademark Nalgene, which includes two holes and has at least one tube and a nozzle or pour spout. However, integral inlet and outlet tubes according to the invention have not been provided.
A two-hole screw-on type closure according to the present invention is especially useful for bubbler tubes in which fluid such as air is introduced into the inlet tube of the cap, through extending tubing into a fluid to be bubbled and withdrawn through the outlet. When the operation is completed, the two-hole cap may be removed and replaced by a solid screw-on cap closure for transporting the fluid to another location or for storage.
Briefly, the invention comprises a screw-on type closure for a bubbler tube having integral inlet and outlet tubes. An elongated tubing is seated in one of the inlet and outlet tubes and extends into the body of the bubbler tube. The closure and bubbler tube body are preferably made of plastic material, such as polyethylene or polypropylene, and the bubbler tubing is glass. An additional hole or holes may be provided in the closure, for example to enable a fluid sample to be removed from the bubbler without removing the closure.
A complete understanding of the invention will be obtained from a perusal of the following disclosure taken with the accompanying drawings in which:
FIG. 1 is an elevation view of the bubbler tube;
FIG. 2 is a plan view of the closure;
FIG. 3 is a bottom view of the closure; and
FIG. 4 is a sectional view taken along lines IV-IV of FIG. 2.
Referring to the drawings, a bubbler tube 1 comprises a body 2 having a screw-on closure 3. The body is elongated and closed at one end. The other end of the body is open and has external threads 4. The closure is a screwon type cap having a base 5 with a peripheral extending skirt 6. The skirt has internal threads 7 which engage threads 4 for securing the closure to the body. The base also includes a circular sealing ridge 8 which fits the top of the body 2 to provide a leakproof seal. There are means, such as vertical ribs 9, for grasping and turning the cap into threaded engagement with the body.
Two tubes 10 and 11 extend through the base of the cap and are integral therewith. The tubes are approximately the same length above the base; however, tube 10 is substantially longer than tube 11 below the base. One of the tubes may be used as an inlet and the other as an outlet for the bubbler tube.
The inlet tube 11 includes a tapered bore 12 for securing an end 13 of a bubbler tubing 14. The tubing is forcefitted within the bore. The upper portion of the tube 11 has a radially inwardly extending shoulder 15 which reduces the diameter of the inlet and serves as a stop against which the end of the tubing seats for preventing it from being forced completely through the inlet tube. The stop also determines the extent to which the tubing extends into the body of the bubbler tube.
The outlet tube 10 is of substantially constant crosssection.
The openings in the closure may be capped with conventional plastic caps or the closure can be removed and replaced with a standard screw-on type cap having no openings, for transportation or storage of the contents of the bubbler tube. The closure is leakproof; it is easy to manufacture and to assemble. It is also disposable.
Having described a preferred embodiment of the invention, it should be understood that it may otherwise be embodied within the scope of the appended claims.
I claim:
1. A screw-on type closure for a bubbler tube comprising a cap having a base and a depending internally threaded-circular skirt, integral inlet and outlet tubes extending through the base, one of the tubes being shorter than the other and including a tapered bore having a radially inwardly extending shoulder on the upper end thereof forming a stop for the upper end for limiting the extent to which a bubbler tubing can be force-fitted in the bore.
2. A closure as set forth in claim 1 in which the closure is made of plastic material.
3. A closure as set forth in claim 1 in which the skirt includes external means for grasping and turning the cap.
4. A closure as set forth in claim 1 wherein the base of the cap includes at least one hole in addition to the inlet and outlet tubes.
5. A bubbler tube comprising:
(A) a tubular body being closed at one end and open at the other and external threads surrounding the open end,
(B) a closure having a base with a pair of integral tubes extending through said base and a depending circular skirt being internally threaded for engagement with the threads of the tubular body, one of said tubes being longer than the other below the base and having a tapered bore, and
(C) a bubbler tubing having an upper end force-fitted within the tapered tube and extending into the body of the bubbler tube to a point adjacent the closed end when the closure is completelythreaded in the body in sealing engagement,
(D) said shorter tube having a radially inwardly extending shoulder at its upper end forming a stop for the upper end of the bubbler tubing.
6. A bubbler tube as set forth in claim 5 wherein the closure and body are plastic and the bubbler tubing is glass.
3 4 7. A bubbler tube as set forth in claim 5 wherein the OTHER REFERENCES skirt includes external means for grasping and turning the closure into threaded engagement with the body Sargent-Welch Catalog 119, Sargent-Welch Screntrfic Company, U.S.A., 1971, p. 135.
5 JOSEPH SCOVRONEK, Primary Examiner A. TURK, Assistant Examiner References Cited UNITED STATES PATENTS 1,941,071 12/1933 Baxter 215-79 2,141,646 12/1938 Ferguson 23--254R US. Cl. X.R. 2,727,644 12/1955 Giannos 215-79 10 23292; 215-79
US00357860A 1973-05-07 1973-05-07 Screw-on type closure for a bubbler tube Expired - Lifetime US3813223A (en)

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024857A (en) * 1974-12-23 1977-05-24 Becton, Dickinson And Company Micro blood collection device
US4043762A (en) * 1976-10-06 1977-08-23 George Milton Olds Coupling means for test tubes and the like
US4071320A (en) * 1976-04-27 1978-01-31 Martin Korbin Device for the quantitative determination of impurities, especially bacteria, on flat surfaces
US4080989A (en) * 1976-05-19 1978-03-28 Michlin Chemical Corporation Tube connector for fluid container
US4353869A (en) * 1981-01-09 1982-10-12 Guth Richard U Ampoule assembly and holder
US4842826A (en) * 1986-04-16 1989-06-27 Sta.Te. S.P.A. Disposable device for collecting physiological samples, in particular coprological samples
DE3821706A1 (en) * 1988-06-28 1990-01-11 Karlsruhe Wiederaufarbeit FILLING STATION FOR SAMPLING RADIOACTIVE PROCESS SOLUTIONS
US4966601A (en) * 1986-03-21 1990-10-30 Klaus Draenert Evacuatable bone cement syringe
US4967922A (en) * 1988-05-03 1990-11-06 Imperial Chemical Industries Plc Containers and caps therefor
US5080868A (en) * 1990-05-16 1992-01-14 Elgas David H Sparger assembly
US5156813A (en) * 1990-07-13 1992-10-20 Medical Laboratory Automation, Inc. Cup for use with a pipette probe
WO1998036272A1 (en) * 1997-02-14 1998-08-20 Aromascan Plc Gas sampling method and apparatus
US5924585A (en) * 1998-01-26 1999-07-20 Vlsi Technology, Inc. Connections and methods of restricting an opening
US6103200A (en) * 1998-06-17 2000-08-15 Babashak; John Adapter assembly for scientific glassware
US20050274679A1 (en) * 2004-06-09 2005-12-15 Kao Yuan-Shiang Device and method for preparing washed red blood cells for newborn transfusions
US20100077874A1 (en) * 2008-09-29 2010-04-01 Jasco Corporation Sample Collection Container, Sample Collection Apparatus, And Sample Collection Method In Supercritical Fluid System
US20100163407A1 (en) * 2008-12-26 2010-07-01 Wilson David M Electrolysis type electrolyzer for production of hydrogen and oxygen for the enhancement of ignition in a hydrocarbon fuel and/or gas combustion device
US20160039583A1 (en) * 2000-05-08 2016-02-11 Craig E. Brown Continuous, Complete, Automatic, Non-Leaking, Non-Aerating, Positive Pressure One-Piece Vent And Pouring Combination Utilizing One Direct Venting Aperture
US20160046421A1 (en) * 2010-03-25 2016-02-18 Craig E. Brown Sectionalized fluids container
US20160296422A1 (en) * 2008-01-29 2016-10-13 Craig E. Brown Singular cap compound vented nursing and related bottle
US9480984B2 (en) * 2014-08-01 2016-11-01 Morteza Norouzi Yeganeh Device for standard preparation of urinary sediment for urine analysis (Mono system)
US20190210775A1 (en) * 2014-06-24 2019-07-11 Craig E. Brown Universal Single Piece Venting Insert For Container
EP3548415A4 (en) * 2016-11-30 2020-07-29 Saint-Gobain Performance Plastics Corporation Cap assembly
CN111511651A (en) * 2017-12-27 2020-08-07 美国圣戈班性能塑料公司 Cap assembly

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024857A (en) * 1974-12-23 1977-05-24 Becton, Dickinson And Company Micro blood collection device
US4071320A (en) * 1976-04-27 1978-01-31 Martin Korbin Device for the quantitative determination of impurities, especially bacteria, on flat surfaces
US4080989A (en) * 1976-05-19 1978-03-28 Michlin Chemical Corporation Tube connector for fluid container
US4043762A (en) * 1976-10-06 1977-08-23 George Milton Olds Coupling means for test tubes and the like
US4353869A (en) * 1981-01-09 1982-10-12 Guth Richard U Ampoule assembly and holder
US4966601A (en) * 1986-03-21 1990-10-30 Klaus Draenert Evacuatable bone cement syringe
US4842826A (en) * 1986-04-16 1989-06-27 Sta.Te. S.P.A. Disposable device for collecting physiological samples, in particular coprological samples
US4967922A (en) * 1988-05-03 1990-11-06 Imperial Chemical Industries Plc Containers and caps therefor
DE3821706A1 (en) * 1988-06-28 1990-01-11 Karlsruhe Wiederaufarbeit FILLING STATION FOR SAMPLING RADIOACTIVE PROCESS SOLUTIONS
US4991450A (en) * 1988-06-28 1991-02-12 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh Filling arrangement for taking a sample of a radioactive process solution
US5080868A (en) * 1990-05-16 1992-01-14 Elgas David H Sparger assembly
US5156813A (en) * 1990-07-13 1992-10-20 Medical Laboratory Automation, Inc. Cup for use with a pipette probe
WO1998036272A1 (en) * 1997-02-14 1998-08-20 Aromascan Plc Gas sampling method and apparatus
US5924585A (en) * 1998-01-26 1999-07-20 Vlsi Technology, Inc. Connections and methods of restricting an opening
US6103200A (en) * 1998-06-17 2000-08-15 Babashak; John Adapter assembly for scientific glassware
US20160039583A1 (en) * 2000-05-08 2016-02-11 Craig E. Brown Continuous, Complete, Automatic, Non-Leaking, Non-Aerating, Positive Pressure One-Piece Vent And Pouring Combination Utilizing One Direct Venting Aperture
US7717274B2 (en) * 2004-06-09 2010-05-18 The Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College Device and method for preparing washed red blood cells for newborn transfusions
US20050274679A1 (en) * 2004-06-09 2005-12-15 Kao Yuan-Shiang Device and method for preparing washed red blood cells for newborn transfusions
US20160296422A1 (en) * 2008-01-29 2016-10-13 Craig E. Brown Singular cap compound vented nursing and related bottle
US10138034B2 (en) * 2008-01-29 2018-11-27 Craig E Brown Singular cap compound vented nursing and related bottle
US20100077874A1 (en) * 2008-09-29 2010-04-01 Jasco Corporation Sample Collection Container, Sample Collection Apparatus, And Sample Collection Method In Supercritical Fluid System
US8327725B2 (en) * 2008-09-29 2012-12-11 Jasco Corporation Sample collection container, sample collection apparatus, and sample collection method in supercritical fluid system
US20100163407A1 (en) * 2008-12-26 2010-07-01 Wilson David M Electrolysis type electrolyzer for production of hydrogen and oxygen for the enhancement of ignition in a hydrocarbon fuel and/or gas combustion device
US8236149B2 (en) * 2008-12-26 2012-08-07 Wilson David M Electrolysis type electrolyzer for production of hydrogen and oxygen for the enhancement of ignition in a hydrocarbon fuel and/or gas combustion device
US20160046421A1 (en) * 2010-03-25 2016-02-18 Craig E. Brown Sectionalized fluids container
US20190210775A1 (en) * 2014-06-24 2019-07-11 Craig E. Brown Universal Single Piece Venting Insert For Container
US9480984B2 (en) * 2014-08-01 2016-11-01 Morteza Norouzi Yeganeh Device for standard preparation of urinary sediment for urine analysis (Mono system)
EP3548415A4 (en) * 2016-11-30 2020-07-29 Saint-Gobain Performance Plastics Corporation Cap assembly
CN111511651A (en) * 2017-12-27 2020-08-07 美国圣戈班性能塑料公司 Cap assembly
US11529641B2 (en) 2017-12-27 2022-12-20 Saint-Gobain Performance Plastics Corporation Cap assembly

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Date Code Title Description
AS Assignment

Owner name: DIVERSEY CORPORATION

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHEMED CORPORATION;REEL/FRAME:005763/0246

Effective date: 19910401