US3852570A - Flexible electrical resistance heating element - Google Patents

Flexible electrical resistance heating element Download PDF

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Publication number
US3852570A
US3852570A US41053973A US3852570A US 3852570 A US3852570 A US 3852570A US 41053973 A US41053973 A US 41053973A US 3852570 A US3852570 A US 3852570A
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Prior art keywords
lead
attaching
conductor
electrical
element
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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.)
Expired - Lifetime
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H Tyler
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Robertshaw Controls Co
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Robertshaw Controls Co
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B3/00Ohmic-resistance heating
    • H05B3/40Heating elements having the shape of rods or tubes
    • H05B3/54Heating elements having the shape of rods or tubes flexible
    • H05B3/56Heating cables
    • H05B3/565Heating cables flat cables
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/25Devices for sensing temperature, or actuated thereby
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B3/00Ohmic-resistance heating
    • H05B3/20Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/36Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heating conductor embedded in insulating material
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B3/00Ohmic-resistance heating
    • H05B3/40Heating elements having the shape of rods or tubes
    • H05B3/54Heating elements having the shape of rods or tubes flexible
    • H05B3/56Heating cables
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017Manufacturing methods or apparatus for heaters

Abstract

An electricl resistance element having a conductor provided with a pair of lead attaching ends, each lead attaching end having a plurality of spaced and predetermined lead attaching parts therealong. A pair of leads are respectively electrically attached to one preselected lead attaching part of each end of the conductor so that the desired electrical resistance is provided through the conductor between the attached parts of the leads. An encasing structure completely covers the conductor and part of the leads whereby the remainder of the leads extend from the encasing structure, the encasing structure being provided by a pair of flexible tape-like strips superimposed on each other and securing part of the leads and the conductor therebetween.

Description

[ 'Dec.3,1974

1 1 FLEXIBLE ELECTRICAL RESISTANCE HEATING ELEMENT Hugh J. Tyler, Santa Ana, Calif.

[73] Assignee: Robertshaw Controls Company,

Richmond, Va.

22] Filed: on. 29, 1973 21 Appl. No.: 410,539

[75] Inventor:

219/549, 338/26, 338/212, 338/287 51 Int. Cl. ..H05b 3/34 [58] FieldofSearch ..219/523, 528, 529, 541,

3,541,491 11/1970 Worstcr 338/309 X 3,745,508 7/1973 Bruder et a1 338/320 3,754,118 8/1973 Booker 219/523 Primary Examiner-Velodymyr Y. Mayewsky Attorney, Agent, or FirmCandor, Candor & Tassone [57] ABSTRACT An electric] resistance element having a conductor provided with a pair of lead attaching ends, each lead attaching end having a plurality of spaced and predetermined lead attaching parts therealong. A pair of leads are respectively electrically attached to one preselected lead attaching part of each end of the conductor so that the desired electrical resistance is provided through the conductor between the attached parts of the leads. An encasing structure completely covers the conductor and part of the leads whereby the remainder of the leads extend from the encasing structure, the encasing structure being provided by a pair of flexible tape-like strips superimposed on each other and securing part of the leads and the conductor therebetween.

10 Claims, 5 Drawing Figures Pmmmm 31914 SHEET 10F 2 FLEXIBLE ELECTRICAL RESISTANQE HEATING ELEMENT This invention relates to an improved electrical resistance element and to a method of making the same.

It is well known from the US. patent to Snoberger et al., No. 3,537,053, that a flexible temperature sensor can be provided for motor protection purposes and be formed by a conductor that is secured between two flexible stip-like members superimposed upon each other with a pair of leads being attached to the respective ends of the conductor so that the conductor will provide a certain electrical resistance between the leads at certain temperatures whereby such flexible temperature sensor can be utilized for motor protection purposes by being inserted in the coil means of an electrical motor to detect the temperature changes therein by having the changes in the electrical resistance of the encased conductor sensed by an appropriate sensor.

However, it has been found according to the teachings of this invention that the precision or accuracy of the above described temperature sensor depends upon the length of the wire-between the soldered connections of the leads thereto as well as the uniformity of the conductor throughout its length and that measurement of the actual resistance of such conductor during assembly of the sensor is not feasible.

Accordingly, it is a feature of this invention to provide an improved electrical resistance element of the above the like wherein a desired electrical resistance of the conductor can be readily ascertained during the making of such electrical resistance element or the like.

In particular, one embodiment of the electrical resistance element of this invention comprises a conductor having a pair of lead attaching ends each having a plurality of spaced and predetermined lead attaching parts therealong. A pair of leads are respectively electrically attached to one preselected lead attaching part of each end of the conductor so that the desired electrical resistance is provided through the conductor between the attached leads because a testing of the electrical resistance of the conductor between various lead attaching parts thereof can be readily determined before the leads are attached thereto. After the leads have been attached to the preselected lead attaching parts of the lead attaching ends of the conductor, an encasing structure completely covers the conductor and the attaching parts of the leads whereby the remainder of the leads can extend from the encasing structure for control device attaching purposes or the like, the enc'asing structure comprising a pair of flexible tape-like strips superimposed on each other and securing the conductor and the attaching parts of the leads therebetween.

Accordingly, it is an object of this invention to proproceeds with reference to the accompanying drawings forming a part thereof and wherein:

FIG. 1 is a perspective view illustrating one embodi- V ment of the improved electrical resistance element of this invention.

FIG. 2 is a schematic broken away, cross-sectional view of an electrical motor utilizing the electrical resistance element of FIG. 1 for motor protection purposes.

FIG. 3 is an exploded perspective view illustrating the various parts of the electrical resistance element'of FIG. 1.

FIG. 4 is a perspective view illustrating the method of making the electrical resistance element of FIG. 1.

such as for making an electrical heating element or the like.

Therefore, this invention is not to be limited to only the embodiments illustrated in the drawings, because I the drawings are merelyutilized to illustrate one of the ence numerals 16 and 17 in FIG. 3.

wide variety of uses of this invention.

Referring now to FIGS. 1 and 3, the improved electrical resistance element of this invention is generally indicated by the reference numeral 10 and comprises a pair of flexible tape-like strips 11 and 12 formed of insulating material hereinafter set forth and being superimposed upon each other to be heat sealed together by an apparatus that is generally indicated byv the reference numeral 14 in FIG. 4 and hereinafter described, the tape-like strip 12 having printed, etched or otherwise disposed thereon a conductor I5formed in a predetermined tortuous path between two lead attaching ends thereof that are generally indicated by the refer- ,The lead attaching ends 16 and 17 of the conductor 15 are each provided with a plurality of flat rectangular lead attaching parts 18, 19 and 20, spaced from each other along therespective lead attaching ends 16 and 17 so that the conductor 15 between each pair of adja-' cent'leadattaching parts 18 and 19 or 19 and, 20 has a length thereof also disposed in a tortuous path therebetween so that resistance can be added or subtracted to the remainder of the conductor 15 depending upon where leads are attached to the lead attaching ends 16 and 17 thereof as will be apparent hereinafter.

For example, it may be desired to make the electrical resistance element 10 so that the same has a resistance of approximately 75 ohms between the desired lead atvide an improved electrical resistance element having forth above or taching location thereof when the element 10 is at approximately F.

Thus, before a pair of leads 21 and 22 are attached thereto, the strip 10 with the conductor 15 thereon is maintained at 75F. and the resistance of the conductor 15 is appropriately measured between the lead attaching parts 18 of the lead attaching ends 16 and 17, the resistance of the conductor 15 is measured between the lead attaching parts 19 of the lead attaching ends 16 and 17 and the resistance of the conductor 15 is measured between the lead attaching parts 20 of the lead attaching ends 16 and 17 to find out which combination of lead attaching parts 18, 19 or 20 will provide a resistance closest to the desired 75 ohms. In fact, such testing or measuring could be between the lead attaching parts l8 and 19 of the respective lead attaching ends 16 and 17, etc., as desired.

Such testing of the resistance of the conductor on the strip 12 can be made at a location remote from the apparatus 14 and the resistance between the various lead attaching parts of the lead attaching ends 16 and 17 could be appropriately marked on the tape-like strip 12 so that subsequently a person can attach the leads 21 and 22 thereto at whichever resistance producing arrangement is desired. In any event, it can be seen that the conductors 21 and 22 are adapted to have the insulation 23 thereof removed adjacent the ends 24 and 25 thereof with the ends 24 and 25 respectively having outwardly turned parts 26 so that the lead ends 24 and 25 can be disposed between the spaced and parallel lead attaching ends 16 and 17 while the outwardly turned parts 26 thereof will respectively contact the lead attaching parts 18, 19 or as illustrated to be readily soldered or otherwise suitably electrically attached thereto, the

After'the lead ends 24 and have been attached to the desired lead attaching parts 18, 19 or-20', or any desired combination of the parts 18, 19 and 20, of the conductor 15, which in the embodiment illustrated in the drawings are the lead attaching parts 19 of the lead attaching ends 16 and 17 in the manner illustrated in FIG. 3, the strip 11 can be superimposed thereon and be heat sealed thereto by the apparatus 1 4 whereby'the conductor 15 and the endparts 24 and 25 of the leads 21 and 22 are completely covered or encased in the flexible strips 11 and 12 in the manner illustratedin FIG. 1 to complete the electrical resistance element of this invention. Thus, it can be seen that the actual resistance of the conductor 15 between the lead attaching parts 26 of the leads 21 and 22 has been accurately provided as the resistance between the lead attaching parts 19 of the lead attaching ends 16' and 17 of the conductor 15 was readily predetermined in themanner previously described so that the electrical resistance element 10 will be most accurate for its intended purpose.

For example, the completed electrical resistance element 10 is adapted to be readily disposed between various coils 27 and 28 of the coil means 29 of an electrical motor means 30 as illustrated in FlG.-2 and be interconnected by the leads 21 and 22 thereof to a control device 31 which will sense the change in the resistance of the conductor 15 as the motor 30 heats up so that should the temperature of the motor 30 exceed a certain limit, the sensor 31 can turn off the motor 30 to avoid an adverse situation whereby it can'be seen that the element 10 of this invention can be utilized for motor protection purposes.

, For further details of the use of the element 10 for motorprotection purposes and the various advantages thereof over, other known types of motor protection US. patent to Snoberger et al, No. 3,537,053, which is incorporated in this application by reference.

As previously stated, the tape-like strips 11 and 12 are formed from non-conductive material and can each comprise a polyimide resulting from the polycondensation reaction between pyromellitic dianhydride and an aromatic diamine sold by the E. I. DuPont de Nemours & Company, Inc., of Wilmington, Del., under the trade name of Kapton. The heat sealing facing surfaces of the strips12 and 11 can be coatedwith a copolymer of tetrafluoroethylene and a hexafluoropropylene sold under the trademark of Fep-Teflon by E. I. duPont de Nemours & Company, Inc., of Wilmington, Del.

In this manner, when the teflon coated sides of the strips 11 and 12 are brought together in the manner illustrated in FIG. 4 and heated by heat sealing elements 32 and 33, the facing sides of the strips 11 and 12 are completely heat sealed together in the manner fully set forth in the aforementioned patent to Snobergeret al., No. 3,537,053.

While one particular tortuous pattent of theconductor 15 of the element 1 0of this invention is provided in FIGS. 1 and 3, it is to be understood that various other patterns of the conductor 15 can be utilized and another such arrangement is illustrated in FIG. 5 wherein a flexible strip 34'has a conductor 35 printed, etched or otherwise disposed thereon in a tortuous pattern and having lead attaching ends 36 and 37 respectively-provided with spaced lead attaching parts 38, 39 and 40 therealong for subsequently having leads attached thereto and be covered by a'superimposed strip in the same manner as the strip 12 previously described. 1 I J However, it can readily be seen in FIG. 5 that the particular tortuous pattern of the conductor 35 between adjacent lead attachingparts 38 and 39 or 39' and 40 of the respective lead attaching ends 36 and 37 places a greater amount of the trim resistors in what would be considered the sensing area of the strip 34 than might be the case with the areas disposed between the attaching parts of the conductor 15 previously described.

Therefore, it can be seen that this invention not only provides an improved electrical resistance element, but also this invention provides an improved method of making such an electrical resistance element or the like. i

While the form and method of this invention now preferred have been'illustrated and described as-required by the Patent Statute, it is to be understood that other forms and methods can be utilized and still come within the scope of the appended claims.

What is claimed is: v

1. An electrical element comprising a conductor having a pair of lead attaching ends, each lead attaching end having a plurality of spaced and predetermined lead attaching parts therealong, a pair-of leads respectively electrically attached to one preselected lead attaching part of each end of said conductor so that a desired electrical resistence ,isprovided throu gh said conductor between said leads, and an electrically nonconductive and flexible encasing structure having op-' posed ends completely'covering saidi conductor and having part of one of said opposed ends covering part of said leads whereby the'remainder of said leads extend from said one opposedend of said encasing structure.

2, An electrical element as set forth in claim 1 wherein said conductor is disposed initially generally in one plane in said encasing structure.

3. An electrical element as set forth in claim 2 wherein said conductor is disposed in a tortuous pattern between the lead attaching parts that provide the shortest electrical circuit through said conductor between said lead attaching ends thereof.

4. An electrical element as set forth in claim 3 wherein each lead attaching end is disposed in a tortuous pattern between adjacent lead attaching parts thereof.

5. An electrical element as set forth in claim 4 wherein the lead attaching parts of each lead end are disposed in aligned relation with each other.

6. An electrical element as set forth in claim 5 wherein the lead attaching parts of said lead ends are disposed in two rows disposed parallel and spaced from and securing-said part of said leads and said conductor therebetween.

9. An electrical element as set forth in claim 1 wherein said element comprises a temperature sensor.

10. An electrical element as set forth in claim 1 wherein said element comprises an electrical heating element.

Claims (10)

1. An electrical element comprising a conductor having a pair of lead attaching ends, each lead attaching end having a plurality of spaced and predetermined lead attaching parts therealong, a pair of leads respectively electrically attached to one preselected lead attaching part of each end of said conductor so that a desired electrical resistence is provided through said conductor between said leads, and an electrically non-conductive and flexible encasing structure having opposed ends completely covering said conductor and having part of one of said opposed ends covering part of said leads whereby the remainder of said leads extend from said one opposed end of said encasing structure.
2. An electrical element as set forth in claim 1 wherein said conductor is disposed initially generally in one plane in said encasing structure.
3. An electrical element as set forth in claim 2 wherein said conductor is disposed in a tortuous pattern between the lead attaching parts that provide the shortest electrical circuit through said conductor between said lead attaching ends thereof.
4. An electrical element as set forth in claim 3 wherein each lead attaching end is disposed in a tortuous pattern between adjacent lead attaching parts thereof.
5. An electrical element as set forth in claim 4 wherein the lead attaching parts of each lead end are disposed in aligned relation with each other.
6. An electrical element as set forth in claim 5 wherein the lead attaching parts of said lead ends are disposed in two rows disposed parallel and spaced from each other. disposed;
7. An electrical element as set forth in claim 6 wherein said leads are disposed between said rows and have ends outwardly turned to engage the desired lead attaching parts and be secured thereto.
8. An electrical element as set forth in claim 1 wherein said encasing structure comprises a pair of flexible tape-like strips superimposed on each other and securing said part of said leads and said conductor therebetween.
9. An electrical element as set forth in claim 1 wherein said element comprises a temperature sensor.
10. An electrical element as set forth in claim 1 wherein said element comprises an electrical heating element.
US3852570A 1973-10-29 1973-10-29 Flexible electrical resistance heating element Expired - Lifetime US3852570A (en)

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US3889362A US3889362A (en) 1973-10-29 1974-09-25 Method of making electrical resistance element

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149066A (en) * 1975-11-20 1979-04-10 Akitoshi Niibe Temperature controlled flexible electric heating panel
US4320286A (en) * 1979-12-07 1982-03-16 Sierracin Corporation Heater element
US4384401A (en) * 1979-12-07 1983-05-24 Sierracin Corporation Method for forming a heater element
WO1986002228A1 (en) * 1984-09-26 1986-04-10 Flexwatt Corporation Flexible electric sheet heater
US4586624A (en) * 1984-08-07 1986-05-06 Bondico, Inc. Method and device for heat sealing thermoplastics materials
US4878039A (en) * 1987-11-02 1989-10-31 Weed Instruments Co., Inc. Apparatus and method for providing a strain-resistant resistance temperature detector
US4967437A (en) * 1988-05-27 1990-11-06 Engineering Plastics, Inc. Heated wiper blade assembly
US4990744A (en) * 1988-11-15 1991-02-05 Nuheat Inc. Under floor covering heating systems
US5299870A (en) * 1991-02-21 1994-04-05 Canon Kabushiki Kaisha Temperature detecting device for heated rotary member
US5324112A (en) * 1991-07-31 1994-06-28 Fiat Auto S.P.A. Detector device for evaluating the thermal comfort conditions in an environment, for example, in the interior of a motor vehicle
US5603856A (en) * 1994-11-04 1997-02-18 Lon Baker Electrically heated windshield wiper with enclosing flexible shroud
US5831511A (en) * 1996-07-11 1998-11-03 General Electric Co. Resistance temperature detector assembly and method of fabricating same
US5848094A (en) * 1995-04-03 1998-12-08 I F M Electronic Gmbh Heat transmission monitoring and/or measuring apparatus
WO1999000004A2 (en) * 1997-06-27 1999-01-07 Potega Patrick H Apparatus for monitoring temperature of a power source
US6414278B1 (en) 2000-03-21 2002-07-02 Sigurd Frohlich Pizza warmer and oven system
US6431750B1 (en) * 1999-12-14 2002-08-13 Sierra Lobo, Inc. Flexible temperature sensing probe
US20030198278A1 (en) * 2002-01-18 2003-10-23 Chu-Yih Yu Thermometer having a disposable temperature probe
US6686562B1 (en) * 1999-08-20 2004-02-03 W.E.T. Automotive Systems Ag Heating element
US6692145B2 (en) * 2001-10-31 2004-02-17 Wisconsin Alumni Research Foundation Micromachined scanning thermal probe method and apparatus
US20040190207A1 (en) * 2001-09-04 2004-09-30 Siemens Aktiengesellschaft Device and method for measuring the temperature of an electric motor
US20040202226A1 (en) * 2001-10-31 2004-10-14 Gianchandani Yogesh B. Micromachined arrayed thermal probe apparatus, system for thermal scanning a sample in a contact mode and cantilevered reference probe for use therein
WO2004091471A2 (en) * 2003-04-04 2004-10-28 Berger, Constance, F. Apparatus for heating bottles and method of manufacturing same
US20050139730A1 (en) * 2003-12-31 2005-06-30 Nicholas Zarkades Apparatus for controlling traffic flow along a pathway
US7059769B1 (en) * 1997-06-27 2006-06-13 Patrick Henry Potega Apparatus for enabling multiple modes of operation among a plurality of devices
US20090065491A1 (en) * 2007-09-07 2009-03-12 Cherry Corporation Heated hand grips
JP2016503491A (en) * 2012-10-16 2016-02-04 メジャメント スペシャリティーズ, インコーポレイテッド Temperature sensors reinforced flexible

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1384467A (en) * 1920-01-27 1921-07-12 Electrothermal Company Bandage
US2717945A (en) * 1954-03-30 1955-09-13 Gen Electric Resistance temperature detector
US2971073A (en) * 1957-07-08 1961-02-07 Eisler Paul Electric surface heating devices
US3283285A (en) * 1963-03-27 1966-11-01 Zuk John Precision wire wound resistors
US3441893A (en) * 1966-12-28 1969-04-29 Gen Electric Resistance temperature detector
US3537053A (en) * 1966-01-19 1970-10-27 Robertshaw Controls Co Flexible temperature sensor for motor protection
US3541491A (en) * 1967-12-20 1970-11-17 Sangamo Weston Electrical resistors
US3745508A (en) * 1972-05-25 1973-07-10 Bourns Inc Selectable fixed impedance device
US3754118A (en) * 1971-02-12 1973-08-21 A Booker Flexible immersion heater

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1384467A (en) * 1920-01-27 1921-07-12 Electrothermal Company Bandage
US2717945A (en) * 1954-03-30 1955-09-13 Gen Electric Resistance temperature detector
US2971073A (en) * 1957-07-08 1961-02-07 Eisler Paul Electric surface heating devices
US3283285A (en) * 1963-03-27 1966-11-01 Zuk John Precision wire wound resistors
US3537053A (en) * 1966-01-19 1970-10-27 Robertshaw Controls Co Flexible temperature sensor for motor protection
US3441893A (en) * 1966-12-28 1969-04-29 Gen Electric Resistance temperature detector
US3541491A (en) * 1967-12-20 1970-11-17 Sangamo Weston Electrical resistors
US3754118A (en) * 1971-02-12 1973-08-21 A Booker Flexible immersion heater
US3745508A (en) * 1972-05-25 1973-07-10 Bourns Inc Selectable fixed impedance device

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149066A (en) * 1975-11-20 1979-04-10 Akitoshi Niibe Temperature controlled flexible electric heating panel
US4320286A (en) * 1979-12-07 1982-03-16 Sierracin Corporation Heater element
US4384401A (en) * 1979-12-07 1983-05-24 Sierracin Corporation Method for forming a heater element
US4626664A (en) * 1984-02-15 1986-12-02 Flexwatt Corporation Electrical heating device
US4586624A (en) * 1984-08-07 1986-05-06 Bondico, Inc. Method and device for heat sealing thermoplastics materials
WO1986002228A1 (en) * 1984-09-26 1986-04-10 Flexwatt Corporation Flexible electric sheet heater
US4878039A (en) * 1987-11-02 1989-10-31 Weed Instruments Co., Inc. Apparatus and method for providing a strain-resistant resistance temperature detector
US4967437A (en) * 1988-05-27 1990-11-06 Engineering Plastics, Inc. Heated wiper blade assembly
US4990744A (en) * 1988-11-15 1991-02-05 Nuheat Inc. Under floor covering heating systems
US5299870A (en) * 1991-02-21 1994-04-05 Canon Kabushiki Kaisha Temperature detecting device for heated rotary member
US5324112A (en) * 1991-07-31 1994-06-28 Fiat Auto S.P.A. Detector device for evaluating the thermal comfort conditions in an environment, for example, in the interior of a motor vehicle
US5603856A (en) * 1994-11-04 1997-02-18 Lon Baker Electrically heated windshield wiper with enclosing flexible shroud
US5848094A (en) * 1995-04-03 1998-12-08 I F M Electronic Gmbh Heat transmission monitoring and/or measuring apparatus
US5831511A (en) * 1996-07-11 1998-11-03 General Electric Co. Resistance temperature detector assembly and method of fabricating same
US7059769B1 (en) * 1997-06-27 2006-06-13 Patrick Henry Potega Apparatus for enabling multiple modes of operation among a plurality of devices
WO1999000004A3 (en) * 1997-06-27 1999-04-01 Patrick H Potega Apparatus for monitoring temperature of a power source
US6152597A (en) * 1997-06-27 2000-11-28 Potega; Patrick H. Apparatus for monitoring temperature of a power source
WO1999000004A2 (en) * 1997-06-27 1999-01-07 Potega Patrick H Apparatus for monitoring temperature of a power source
US6686562B1 (en) * 1999-08-20 2004-02-03 W.E.T. Automotive Systems Ag Heating element
US6431750B1 (en) * 1999-12-14 2002-08-13 Sierra Lobo, Inc. Flexible temperature sensing probe
US6414278B1 (en) 2000-03-21 2002-07-02 Sigurd Frohlich Pizza warmer and oven system
US20040190207A1 (en) * 2001-09-04 2004-09-30 Siemens Aktiengesellschaft Device and method for measuring the temperature of an electric motor
US7033073B2 (en) * 2001-09-04 2006-04-25 Siemens Aktiengesellschaft Device and method for measuring the temperature of an electric motor
US6692145B2 (en) * 2001-10-31 2004-02-17 Wisconsin Alumni Research Foundation Micromachined scanning thermal probe method and apparatus
US20040202226A1 (en) * 2001-10-31 2004-10-14 Gianchandani Yogesh B. Micromachined arrayed thermal probe apparatus, system for thermal scanning a sample in a contact mode and cantilevered reference probe for use therein
US7073938B2 (en) 2001-10-31 2006-07-11 The Regents Of The University Of Michigan Micromachined arrayed thermal probe apparatus, system for thermal scanning a sample in a contact mode and cantilevered reference probe for use therein
US20030198278A1 (en) * 2002-01-18 2003-10-23 Chu-Yih Yu Thermometer having a disposable temperature probe
WO2004091471A2 (en) * 2003-04-04 2004-10-28 Berger, Constance, F. Apparatus for heating bottles and method of manufacturing same
WO2004091471A3 (en) * 2003-04-04 2004-12-23 Berger Constance F Apparatus for heating bottles and method of manufacturing same
US6997417B2 (en) * 2003-12-31 2006-02-14 Nicholas Zarkades Apparatus for controlling traffic flow along a pathway
US20050139730A1 (en) * 2003-12-31 2005-06-30 Nicholas Zarkades Apparatus for controlling traffic flow along a pathway
US20090065491A1 (en) * 2007-09-07 2009-03-12 Cherry Corporation Heated hand grips
US8558140B2 (en) * 2007-09-07 2013-10-15 Zf Friedrichshafen Ag Heated hand grips
JP2016503491A (en) * 2012-10-16 2016-02-04 メジャメント スペシャリティーズ, インコーポレイテッド Temperature sensors reinforced flexible

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Effective date: 19900730