US2606986A - Resistance unit - Google Patents
Resistance unit Download PDFInfo
- Publication number
- US2606986A US2606986A US236729A US23672951A US2606986A US 2606986 A US2606986 A US 2606986A US 236729 A US236729 A US 236729A US 23672951 A US23672951 A US 23672951A US 2606986 A US2606986 A US 2606986A
- Authority
- US
- United States
- Prior art keywords
- channel
- block
- assembly
- resistance
- projecting
- Prior art date
- 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.)
- Expired - Lifetime
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/143—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
- H01C1/148—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors the terminals embracing or surrounding the resistive element
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Elimination Of Static Electricity (AREA)
Description
ug- 12, 1952 R. P. SWEGER 2,606,986
RESISTANCE UNIT Filed July 14, 1951 INVENTOR.
Russe# Pf mer BY caw] Wwf-(11% 14T TRN'YS Patented Aug. 12, 1952 l RESISTANCE UNrr Russell?. S-weger, Rockford, Ill., assigner to Barber-Colman Company, Rockford, Ill., a corporation of Illinois Application July 14,` 1951, serial No. 236,729
9 Claims.
This invention relates to resistance units of the type used in measuring surface temperatures, particularly those units in whichthe resistance element is a rigid disk or wafer.
The general object is to provide a new and improved mounting for a resistance element of the above character which is simple and inexpensive to construct and assemble, which may be clamped firmly against a supporting surface without danger of distortion or short-circuiting, and which is extremely sensitive to changes in the temperature of the supporting surface.
Another object is to mount the resistance element between two bars joined in a novel manner to form arigid assembly adapted to be mounted in a novel manner in an insulating casing. y
A further object is to mount the element as- Semblyvin the terminal block in a novel manner so as to prevent damage to the assembly during clamping of the block against a supporting surface.
Other objects and advantages of the invention will become apparent from the following detailed description taken in connection with the accompanying drawings, in which Figure 1 is a perspective view of the improved resistance unit.
Fig. 2 is a fragmentary bottom View.
Fig. 3 is a longitudinal sectional view takenv along the line 3-3 of Fig. 1.
Fig. 4 is an exploded perspective view of the parts of the resistance element assembly.
Fig. 5 is a fragmentary Sectional view taken along the line 5-5 of Fig. 3.
Fig. 6 is a perspective view of one of the electric terminals.
In the form shown in the drawings by way of illustration, the improved resistance unit comprises generally a plurality of resistance elements or so-called thermistors I electrically connected in parallel and disposed within a metallic bar-like assembly II which is seated in an in sulating block I2 adapted to be clamped by bolts I3 against a support I4 Whose temperature is to be measured. The elements I0 are in the form of wafer-like rigid disks which are relatively thin as compared to their diameter.
The assembly II includes an elongated channel I of highly conductive material such as silver having a iiat bottom and upstanding parallel anges I6 terminating in spaced tabs I'l. Seated within the channel is a channel-shaped bar I8 of insulation having spaced holes I9 each adapted to receive one of the resistance disks I0 with the lower end bearing against the bottom of the channel I5 and the top surface projecting 2 above the bottom of the channel I8. A highly conductive Strip 20 such as silver is laid across the tops of the disks I0 andcovered by a serpentine spring strip 2I with a layer 22 of insulation such as mica superimposed thereon.
The parts thus assembled are clamped together.v
by a metal bar 23 shorter than the channel I5 and having inverted J-shaped Side flanges 24V fitting down over the upstanding flanges I 5 of the channel I5 and apertured at 25 to receive the tabs I1. While the two channels I5 and 23` are pressed together, the tabs are bent inwardly to lock the channels together with the spring 2| holding the bars I5 and 20 in firm electrical conf tact with the ends of the resistance disks III.
The elongated bar-like assembly thus formed is seated in a recess 21 which is molded in the bottom of the block I2 between two parallel holes 28. To provide one contact terminal and Secure the assembly II in the block, elongated stripsv 29 are formed integral with opposite ends of the channel I5 and bent upwardly along the bottoms of Slots 30 extending along the inner sides of the holes 28. Above the block, the strips 29 are bent inwardly toward each other and thus are snubbed around edges 3| to lock the assembly firmly in the block.
The end portions 32 of the contact strips 29 are bent reversely and outwardly into horizontal positions where they are clenched by bent over lugs 33 against terminal washers 34 surrounding tubular studs 35 extending loosely through the holes 28. Dished spring washers 36 bear against the top of the block and press the terminal washers 34 upwardly against the shoulders 36a spun outwardly from the upper ends of the studs 35.
The bolts I3 constitute one terminal binding post. The other terminal is formed by a threaded stud 40 molded into the top of the block I2 near the center thereof and extending downwardly into a countersunk recess 4I in one end of the block. An extension 42 of the top connector strip is bent upwardly around the end of an insulating bar 43 pressed into the recess 4i. Above this bar, the strip 42 is bent inwardly and its end is riveted or otherwise secured at 44 to the inner end of the binding post 49.
I claim as my invention: s
1. A resistance unit comprising a channel of conductive material having a terminal strip projecting from one end, an insulating bar seated in said channel and having a hole therethrough,
a wafer-like resistance element disposed n said hole and abutting said channel, an insulated conductor lying against the other end of said' element and projecting from the end of said bar, and an inverted channel with anges telescoping with the flanges of said rst channel, and means interlocking said channels along opposite edges to clamp said element between said conductor and said first channel.
2. A resistance unit comprising a channel of conductive material having a terminal strip projecting from one end and tabs spaced alongand projecting from the edges of the channel flanges, anY insulating channel seated in saidrst channel and having a hole therethrough, a wafer-like resistance element disposed in said -holeand abuttingV said iirst channel, an insulated conductor lying in said second channel against the other end of said element and projecting from the end of the second channel, and an inverted channel with flanges telescoping with the anges of said first channel and having apertures at the base` of its flanges receiving said tabs, the latter being bent laterally to lock said -iirst and third channels together.
3. A resistance unit comprising a wafer-like resistance element, insulated conductive bars clamped against opposite end surfaces of said element and forming therewith relativelyv rigid assembly having insulated contact strips projectingfrom the ends of said bars, a block of insulation having a bottom recess receiving said assembly with one of said bars exposed for engagement with a supporting surface, a terminal postixed to said block and projecting from theblbck beyond one end of said assembly, onev of said projecting strips being connected to said-post,
and;` a second post projecting from saidblock intermediate the ends thereof, the other of said projecting strips being bent reversely within the block and connected to said second post.
4. A resistance unit comprising a wafer-like resistance element, conductive bars clamped against opposite end surfaces of said element and forming therewith relatively rigid assembly having insulated contact strips projecting from the' ends of said bars, a block of insulationrecessed to receive said assembly with one of said barsexposed for engagement with a supporting surface,
and' spaced terminals fixed to said block and respectively connectedl to said projecting strips.
5. A resistance unit having, in combination, a block of insulation having a bottom recess and spaced parallel holes through opposite endscommunicating `with' said recess beyond the ends of said'recessa resistance element disposed in said- -in said recess.
6. A resistance unit comprising a channel of conductive material having a terminal strip projecting from one end, a wafer-like resistance element disposed in said rst channel between the nanges thereof and abutting the channel bottom, a conductor lying against the other end 'of said, element within said channel and insulated from the latter, a bar disposed between the flanges of said channel and interloclied therewith to clamp said element between said bar and channel, terminal strips projecting from opposite ends of said channel, said element, said conductor and said bar forming a unitary assembly, an insulating block recessed? to receive said assembly and' having holes through which said terminal strips may be extended, andi means vsecuringl said strips to said block to fasten the assembly thereinA with saldi channel: exposed for contact with a supporting surface.
7. A resistance unit comprising a channel of conductive material having a terminal. strip projecting from one end, a wafer-like resistance element disposed in said rst channel between the flanges thereof andv abutting the channel bottom, a conductor lying against the other end'- of said element within said channel and insulated' from the latter, a bar disposed between the flanges of said channel' and interlocllzedA therewith toI clamp said element between saidV bar and channel', and insulated terminals projecting from the' ends-of said channel and said' conductor.
8. A resistance unit comprising a wafer-like resistance element, conductive bars clamped? against opposite end surfaces ci' said element and forming therewith relatively unitary assembly having insulated stripsprojecting from theends of one bar, and' ablock of insulationrecessed to receive said assembly with said one bar exposed on the bottom of the block for' eng-agement with av supporting surface, saidE strips being bent upwardly and around opposite end-portions of the block to fasten'saidassembly therein'.
9. A resistance unit having, inxcombina-tion. an elongated insulating block havingparallel holes extending through opposite ends, hollow studs extending through said holes and having shoulders at opposite ends, one of the shoulders being seated in said block, a resiliently lyieldable connection between theexteriorV of said block and thel other'of said shoulders, saidstuds` being adapted tok receive bolts by which the'studs may be clamped rigidly against a supporting surface without distortion of said block, anda resistance unit assembly mounted inoneside of said block andl adapted to be pressed against said supporting surface whensaidblock is attached thereto.
RUSSELL VP. SWEGER.
No references cited.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US236729A US2606986A (en) | 1951-07-14 | 1951-07-14 | Resistance unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US236729A US2606986A (en) | 1951-07-14 | 1951-07-14 | Resistance unit |
Publications (1)
Publication Number | Publication Date |
---|---|
US2606986A true US2606986A (en) | 1952-08-12 |
Family
ID=22890705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US236729A Expired - Lifetime US2606986A (en) | 1951-07-14 | 1951-07-14 | Resistance unit |
Country Status (1)
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Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2747071A (en) * | 1954-06-24 | 1956-05-22 | Schlumbohm Peter | Electric resistance heater |
US2795139A (en) * | 1954-06-14 | 1957-06-11 | A W Brickman | Means for sensing and recording the temperature of the contents of lard renderers and the like |
US2863033A (en) * | 1954-11-29 | 1958-12-02 | Gen Electric | Temperature detector and method of making |
US2878355A (en) * | 1958-01-29 | 1959-03-17 | Penn Controls | Electrical temperature sensing element |
US2938385A (en) * | 1955-06-23 | 1960-05-31 | Design Inc | Thermistor thermometer system |
US2945163A (en) * | 1955-01-10 | 1960-07-12 | Globe Union Inc | Component mounting for printed circuits |
US3295373A (en) * | 1963-01-08 | 1967-01-03 | King Seeley Thermos Co | Temperature responsive mechanism |
US3467308A (en) * | 1962-11-07 | 1969-09-16 | King Seeley Thermos Co | Electric heating oven with browning control |
US3506951A (en) * | 1968-01-30 | 1970-04-14 | Motorola Inc | Electrical component mount |
US3940591A (en) * | 1974-07-01 | 1976-02-24 | Texas Instruments Incorporated | Self-regulating electric heater |
DE2504237A1 (en) * | 1975-02-01 | 1976-08-05 | Braun Ag | ELECTRIC CURLERS OR HAIR BAR |
US3976854A (en) * | 1974-07-31 | 1976-08-24 | Matsushita Electric Industrial Co., Ltd. | Constant-temperature heater |
US3995141A (en) * | 1975-10-31 | 1976-11-30 | Texas Instruments Incorporated | Food warming device |
US3996447A (en) * | 1974-11-29 | 1976-12-07 | Texas Instruments Incorporated | PTC resistance heater |
US4147927A (en) * | 1975-04-07 | 1979-04-03 | U.S. Philips Corporation | Self-regulating heating element |
DE2836247A1 (en) * | 1978-08-18 | 1980-03-06 | Bosch Siemens Hausgeraete | Heater with PTC resistance heating element - has assembly simplified by using intermediate electrode plates for current supply |
FR2439530A1 (en) * | 1978-10-21 | 1980-05-16 | Eichenauer Fritz | ELECTRIC RESISTANCE HEATING ELEMENT |
US4228343A (en) * | 1977-12-29 | 1980-10-14 | Schick Incorporated | Collapsible cordless electric hair curling appliance |
US4242567A (en) * | 1978-06-05 | 1980-12-30 | General Electric Company | Electrically heated hair straightener and PTC heater assembly therefor |
US4249066A (en) * | 1977-07-29 | 1981-02-03 | Wagener & Co. | Press platen for belt press |
EP0023644A1 (en) * | 1979-08-07 | 1981-02-11 | Bosch-Siemens HausgerÀ¤te GmbH | Electrical heating device with a heating element havin a low resistance at low temperatures |
EP0026456A2 (en) * | 1979-09-28 | 1981-04-08 | Siemens Aktiengesellschaft | Heating arrangement using a P.T.C. resistance |
FR2496382A1 (en) * | 1980-12-13 | 1982-06-18 | Fudickar Kg C S | ELECTRIC HEATING DEVICE, PARTICULARLY FOR HEATING ELEMENTS, HOUSEHOLD APPLIANCES OR PRESS PLATES, AND MANUFACTURING METHOD |
DE3042420A1 (en) * | 1980-11-11 | 1982-06-24 | Fritz Eichenauer GmbH & Co KG, 6744 Kandel | Electric heater with flat heating elements - has sheet metal contact strips, with resilient fastening tags, as heater terminals |
DE3046995A1 (en) * | 1980-12-13 | 1982-07-08 | C.S. Fudickar Kg, 5600 Wuppertal | Waterproof heater for household appliances - has small heating plates and fillers sandwiched between contacts and in watertight sheath |
DE3208802A1 (en) * | 1980-12-13 | 1983-09-22 | C.S. Fudickar Kg, 5600 Wuppertal | Electrical heating device for heated apparatuses |
US4492948A (en) * | 1981-09-02 | 1985-01-08 | Leeds & Northrup Company | Fast response surface contact temperature sensor |
DE3440166A1 (en) * | 1983-11-18 | 1985-05-30 | Matsushita Electric Works, Ltd., Kadoma, Osaka | SELF-CONTROLLING ELECTRIC HEATING UNIT |
DE3616459A1 (en) * | 1986-05-15 | 1987-11-19 | Braun Ag | Hair-care appliance |
US4868997A (en) * | 1988-06-20 | 1989-09-26 | Emhart Industries, Inc. | Dryer timer |
US4948953A (en) * | 1989-01-26 | 1990-08-14 | Fritz Eichenauer Gmbh & Co. Kg | Holding part for PTC components |
FR2724727A1 (en) * | 1994-09-16 | 1996-03-22 | Cotherm Sa | Temp. sensor permitting regulation of temp. of fluid in tubes or pipelines |
US6472645B1 (en) * | 1999-06-15 | 2002-10-29 | David & Baader Spezialfabrik Elekrischer Apparate Und Heizwiderstande Gmbh | Air heating device |
EP3598847A1 (en) * | 2018-07-18 | 2020-01-22 | Eberspächer catem GmbH & Co. KG | Heat-generating element and method for producing the same |
-
1951
- 1951-07-14 US US236729A patent/US2606986A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2795139A (en) * | 1954-06-14 | 1957-06-11 | A W Brickman | Means for sensing and recording the temperature of the contents of lard renderers and the like |
US2747071A (en) * | 1954-06-24 | 1956-05-22 | Schlumbohm Peter | Electric resistance heater |
US2863033A (en) * | 1954-11-29 | 1958-12-02 | Gen Electric | Temperature detector and method of making |
US2945163A (en) * | 1955-01-10 | 1960-07-12 | Globe Union Inc | Component mounting for printed circuits |
US2938385A (en) * | 1955-06-23 | 1960-05-31 | Design Inc | Thermistor thermometer system |
US2878355A (en) * | 1958-01-29 | 1959-03-17 | Penn Controls | Electrical temperature sensing element |
US3467308A (en) * | 1962-11-07 | 1969-09-16 | King Seeley Thermos Co | Electric heating oven with browning control |
US3295373A (en) * | 1963-01-08 | 1967-01-03 | King Seeley Thermos Co | Temperature responsive mechanism |
US3506951A (en) * | 1968-01-30 | 1970-04-14 | Motorola Inc | Electrical component mount |
US3940591A (en) * | 1974-07-01 | 1976-02-24 | Texas Instruments Incorporated | Self-regulating electric heater |
US3976854A (en) * | 1974-07-31 | 1976-08-24 | Matsushita Electric Industrial Co., Ltd. | Constant-temperature heater |
US3996447A (en) * | 1974-11-29 | 1976-12-07 | Texas Instruments Incorporated | PTC resistance heater |
DE2504237A1 (en) * | 1975-02-01 | 1976-08-05 | Braun Ag | ELECTRIC CURLERS OR HAIR BAR |
US4097718A (en) * | 1975-02-01 | 1978-06-27 | Braun Aktiengesellschaft | Device for heat treating hair on the human head, and the like hair curling device having self-regulating PTC heater |
US4147927A (en) * | 1975-04-07 | 1979-04-03 | U.S. Philips Corporation | Self-regulating heating element |
US3995141A (en) * | 1975-10-31 | 1976-11-30 | Texas Instruments Incorporated | Food warming device |
US4249066A (en) * | 1977-07-29 | 1981-02-03 | Wagener & Co. | Press platen for belt press |
US4228343A (en) * | 1977-12-29 | 1980-10-14 | Schick Incorporated | Collapsible cordless electric hair curling appliance |
US4242567A (en) * | 1978-06-05 | 1980-12-30 | General Electric Company | Electrically heated hair straightener and PTC heater assembly therefor |
DE2836247A1 (en) * | 1978-08-18 | 1980-03-06 | Bosch Siemens Hausgeraete | Heater with PTC resistance heating element - has assembly simplified by using intermediate electrode plates for current supply |
FR2439530A1 (en) * | 1978-10-21 | 1980-05-16 | Eichenauer Fritz | ELECTRIC RESISTANCE HEATING ELEMENT |
EP0023644A1 (en) * | 1979-08-07 | 1981-02-11 | Bosch-Siemens HausgerÀ¤te GmbH | Electrical heating device with a heating element havin a low resistance at low temperatures |
EP0026456A2 (en) * | 1979-09-28 | 1981-04-08 | Siemens Aktiengesellschaft | Heating arrangement using a P.T.C. resistance |
EP0026456A3 (en) * | 1979-09-28 | 1981-04-15 | Siemens Aktiengesellschaft | Heating arrangement using a p.t.c. resistance |
DE3042420A1 (en) * | 1980-11-11 | 1982-06-24 | Fritz Eichenauer GmbH & Co KG, 6744 Kandel | Electric heater with flat heating elements - has sheet metal contact strips, with resilient fastening tags, as heater terminals |
FR2496382A1 (en) * | 1980-12-13 | 1982-06-18 | Fudickar Kg C S | ELECTRIC HEATING DEVICE, PARTICULARLY FOR HEATING ELEMENTS, HOUSEHOLD APPLIANCES OR PRESS PLATES, AND MANUFACTURING METHOD |
DE3046995A1 (en) * | 1980-12-13 | 1982-07-08 | C.S. Fudickar Kg, 5600 Wuppertal | Waterproof heater for household appliances - has small heating plates and fillers sandwiched between contacts and in watertight sheath |
DE3208802A1 (en) * | 1980-12-13 | 1983-09-22 | C.S. Fudickar Kg, 5600 Wuppertal | Electrical heating device for heated apparatuses |
US4492948A (en) * | 1981-09-02 | 1985-01-08 | Leeds & Northrup Company | Fast response surface contact temperature sensor |
DE3440166A1 (en) * | 1983-11-18 | 1985-05-30 | Matsushita Electric Works, Ltd., Kadoma, Osaka | SELF-CONTROLLING ELECTRIC HEATING UNIT |
DE3616459A1 (en) * | 1986-05-15 | 1987-11-19 | Braun Ag | Hair-care appliance |
US4868997A (en) * | 1988-06-20 | 1989-09-26 | Emhart Industries, Inc. | Dryer timer |
US4948953A (en) * | 1989-01-26 | 1990-08-14 | Fritz Eichenauer Gmbh & Co. Kg | Holding part for PTC components |
EP0379874B1 (en) * | 1989-01-26 | 1998-07-22 | Fritz Eichenauer GmbH & Co. KG | Securing part for PTC elements |
FR2724727A1 (en) * | 1994-09-16 | 1996-03-22 | Cotherm Sa | Temp. sensor permitting regulation of temp. of fluid in tubes or pipelines |
US6472645B1 (en) * | 1999-06-15 | 2002-10-29 | David & Baader Spezialfabrik Elekrischer Apparate Und Heizwiderstande Gmbh | Air heating device |
EP1061776B1 (en) * | 1999-06-15 | 2005-01-05 | David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH | Heating device specially made for heating air |
EP3598847A1 (en) * | 2018-07-18 | 2020-01-22 | Eberspächer catem GmbH & Co. KG | Heat-generating element and method for producing the same |
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