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US3668372A Expired / Lapsed US ⏱️ 0.0 years remaining

Temperature sensing device and apparatus utilizing the same

Assignee: Robertshaw Controls Co
•
Filing: 1971-04-06
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Granted: 1972-06-06
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Expires: 1991-04-06
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Abstract

Abstract A temperature sensing device for sensing the temperature of a cooking vessel disposed on the heating means of a cooking apparatus comprising a bracket secured to the cooking apparatus and movably carrying a sensing element that contacts the bottom of the cooking vessel, the sensing element having a capillary tube interconnected thereto and having a single bend therein that provides the sole means for urging the sensing element into contact with the bottom of the cooking vessel.

Inventors

  • 👤 William H Russell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 13:47
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/36; F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/105; F24C3/00; F24C3/12; F24C3/126

Claims Analysis

Total Claims: 22
Claim 1
Independent Claim 176 words
A temperature sensing device for sensing the temperature of a cooking vessel or the like comprising a bracket means adapted to be secured to a cooking apparatus for heating said cooking vessel, and a sensing element movably carried by said bracket means and being adapted to contact said cooking vessel, said sensing element having a capillary tube sealingly interconnected thereto and leading therefrom to a power element whereby said elements are sealingly and fluidly interconnected together by said capilary tube, said capillary tube having a first portion thereof movably carried by said bracket means to position said sensing element relative to said bracket means, said capillary tube having a second portion thereof provided with a single bend between said first portion thereof and said bracket means to provide the sole spring force adapted to move said sensing element relative to said bracket means in a direction to tend to contact said cooking vessel, said capilary tube having a third portion for being held stationary relative to said bracket means and being interconnected to said power element.
Claim 2
Dependent Claim 176 words
A temperature sensing device for sensing the temperature of a cooking vessel or the like comprising a bracket means adapted to be secured to a cooking apparatus for heating said cooking vessel, and a sensing element movably carried by said bracket means and being adapted to contact said cooking vessel, said sensing element having a capillary tube sealingly interconnected thereto and leading therefrom to a power element whereby said elements are sealingly and fluidly interconnected together by said capilary tube, said capillary tube having a first portion thereof movably carried by said bracket means to position said sensing element relative to said bracket means, said capillary tube having a second portion thereof provided with a single bend between said first portion thereof and said bracket means to provide the sole spring force adapted to move said sensing element relative to said bracket means in a direction to tend to contact said cooking vessel, said capilary tube having a third portion for being held stationary relative to said bracket means and being interconnected to said power element.
Claim 3
Dependent Claim 29 words
A device as set forth in claim 1 wherein said first portion of said capillary tube is disposed between said sensing element and said second portion of said tube.
Claim 4
Dependent Claim 19 words
A device as set forth in claim 1 wherein said first portion of said capillary tube is substantially straight.
Claim 5
Dependent Claim 40 words
A device as set forth in claim 3 wherein said bracket means has aligned openings passing therethrough, said straight portion of said capillary tube passing through said aligned openings to movably guide said sensing element relative to said bracket means.
Claim 6
Dependent Claim 26 words
A device as set forth in claim 1 wherein said bracket means has a mounting portion adapted to secure said bracket means to said cooking apparatus.
Claim 7
Dependent Claim 47 words
A device as set forth in claim 5 wherein said capillary tube is adapted to have said third portion thereof disposed between said mounting portion of said bracket means and said cooking apparatus to secure said third portion of said tube from movement relative to said apparatus.
Claim 8
Dependent Claim 24 words
A device as set forth in claim 6 wherein said second portion of said tube is disposed intermediate said first and third portions thereof.
Claim 9
Dependent Claim 29 words
A device as set forth in claim 6 wherein said mounting portion of said bracket means has an open ended channel for receiving said third portion of said tube.
Claim 10
Dependent Claim 39 words
A device as set forth in claim 6 wherein said mounting portion of said bracket means comprises a foot of said bracket means that is disposed substantially at a right angle relative to the remainder of said bracket means.
Claim 11
Dependent Claim 57 words
A device as set forth in claim 9 wherein said foot is adapted to be secured to a horizontal part of said cooking apparatus to vertically mount said remainder of said bracket means, said single bend of said capillary tube being disposed within a vertical plane to vertically urge said sensing element relative to said bracket means.
Claim 12
Dependent Claim 182 words
In a cooking apparatus having a heating means for heating a cooking vessel, the improvement comprising a temperature sensing device for sensing the temperature of said cooking vessel, said device having a bracket means secured to said cooking apparatus, and a sensing element movably carried by said bracket means and being adapted to contact said cooking vessel, said sensing element having a capillary tube sealingly interconnected thereto and leading therefrom to a power element whereby said elements are sealingly and fluidly interconnected together by said capillary tube, said capillary tube having a first portion thereof movably carried by said bracket means to position said sensing element relative to said bracket means, said capillary tube having a second portion thereof provided with a single bend between said first portion thereof and said bracket means to provide the sole spring force to tend to move said sensing element relative to said bracket means in a direction to tend to contact said cooking vessel, said capilary tube having a third portion held stationary relative to said bracket means and being interconnected to said power element.
Claim 13
Dependent Claim 182 words
In a cooking apparatus having a heating means for heating a cooking vessel, the improvement comprising a temperature sensing device for sensing the temperature of said cooking vessel, said device having a bracket means secured to said cooking apparatus, and a sensing element movably carried by said bracket means and being adapted to contact said cooking vessel, said sensing element having a capillary tube sealingly interconnected thereto and leading therefrom to a power element whereby said elements are sealingly and fluidly interconnected together by said capillary tube, said capillary tube having a first portion thereof movably carried by said bracket means to position said sensing element relative to said bracket means, said capillary tube having a second portion thereof provided with a single bend between said first portion thereof and said bracket means to provide the sole spring force to tend to move said sensing element relative to said bracket means in a direction to tend to contact said cooking vessel, said capilary tube having a third portion held stationary relative to said bracket means and being interconnected to said power element.
Claim 14
Dependent Claim 34 words
In a cooking apparatus as set forth in claim 11, the further improvement wherein said first portion of said capillary tube is disposed between said sensing element and said second portion of said tube.
Claim 15
Dependent Claim 24 words
In a cooking apparatus as set forth in claim 11, the further improvement wherein said first portion of said capillary tube is substantially straight.
Claim 16
Dependent Claim 45 words
In a cooking apparatus as set forth in claim 13, the further improvement wherein said bracket means has aligned openings passing therethrough, said straight portion of said capillary tube passing through said aligned openings to movably guide said sensing element relative to said bracket means.
Claim 17
Dependent Claim 26 words
In a cooking apparatus as set forth in claim 11, the further improvement wherein said bracket means has a mounting portion secured to said cooking apparatus.
Claim 18
Dependent Claim 50 words
In a cooking apparatus as set forth in claim 15, the further improvement wherein said capillary tube has said third portion thereof disposed between said mounting portion of said bracket means and said cooking apparatus whereby said third portion of said tube is secured from movement relative to said apparatus.
Claim 19
Dependent Claim 29 words
In a cooking apparatus as set forth in claim 16, the further improvement wherein said second portion of said tube is disposed intermediate said first and third portions thereof.
Claim 20
Dependent Claim 33 words
In a cooking apparatus as set forth in claim 16, the further improvement wherein said mounting portion of said bracket means has an open ended channel receiving said third portion of said tube.
Claim 21
Dependent Claim 44 words
In a cooking apparatus as set forth in claim 16, the further improvement wherein said mounting portion of said bracket means comprises a foot of said bracket means that is disposed substantially at a right angle relaTive to the remainder of said bracket means.
Claim 22
Dependent Claim 59 words
In a cooking apparatus as set forth in claim 19, the further improvement wherein said foot is secured to a horizontal part of said cooking apparatus to vertically mount said remainder of said bracket means, said single bend of said capillary tube being disposed within a vertical plane to vertically urge said sensing element relative to said bracket means.

References Cited (Backward Citations)

US2303012A Cited
US2786930A Cited
US2913562A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-06-06 1975-12-06 1976-06-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-06 1979-12-06 1980-06-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-06 1983-12-06 1984-06-06 $7700.00 Window Closed / Lapsed

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