US4173894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable temperature sensing device
Assignee: Individual
•
Filing: 1978-05-30
•
Granted: 1979-11-13
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Expires: 1998-05-30
Abstract
Abstract The specification describes a portable temperature sensing device adapted to maximize heat transfer from a selected location on a planar surface to the device while minimizing heat transfer from surrounding conditions. The device includes a frame made of thermal insulating material provided with a sealed cavity, a temperature measuring instrument in the sealed cavity, a heat transfer member having a high thermal conductivity and extending from the cavity to the exterior surface of the frame for intimate contact with the planar surface, and means for reading the temperature measuring instrument. The arrangement is such that the heat transfer member is essentially isolated from thermal effects of surrounding conditions when the device is in use.
Inventors
- 👤 Andy Gerike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:37
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/16; G01K1/14; G01K1/143
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
181 words
A temperature sensing device adapted to maximize heat transfer from surrounding conditions comprising a frame of thermal material provided with a sealed cavity, a temperature measuring instrument in said sealed cavity operable over a range of temperatures, a thin metal heat transfer plate having a high thermal conductivity extending from said cavity projecting slightly beyond the exterior surface of said frame for presenting a planar heat transfer face for intimate contact which such planar surface and means for reading said temperature measuring instrument and being adapted to provide readout over said range of temperatures, said temperature measuring instrument being in contact with said heat transfer plate, said planar heat transfer face defining the area of thermal contact with such planar surface, said thin metal plate occupying a major portion of the surface area of said exterior surface of said frame for maximizing heat transfer to said temperature measuring instrument and for minimizing response time of said temperature sensing device; said frame being resilient for deformation about said plate to essentially isolate it from thermal effects of surrounding conditions when in use.
Claim 2
Dependent Claim
181 words
A temperature sensing device adapted to maximize heat transfer from surrounding conditions comprising a frame of thermal material provided with a sealed cavity, a temperature measuring instrument in said sealed cavity operable over a range of temperatures, a thin metal heat transfer plate having a high thermal conductivity extending from said cavity projecting slightly beyond the exterior surface of said frame for presenting a planar heat transfer face for intimate contact which such planar surface and means for reading said temperature measuring instrument and being adapted to provide readout over said range of temperatures, said temperature measuring instrument being in contact with said heat transfer plate, said planar heat transfer face defining the area of thermal contact with such planar surface, said thin metal plate occupying a major portion of the surface area of said exterior surface of said frame for maximizing heat transfer to said temperature measuring instrument and for minimizing response time of said temperature sensing device; said frame being resilient for deformation about said plate to essentially isolate it from thermal effects of surrounding conditions when in use.
Claim 3
Dependent Claim
204 words
A portable temperature sensing device adapted to maximize heat transfer from a selected location on a planar surface to the device while minimizing heat transfer from surrounding conditions, comprising a frame made of thermal insulating material provided with a sealed cavity operable over a range of temperatures, a thin metal heat transfer plate having a high thermal conductivity and extending from said cavity, and projecting slightly beyond the exterior surface of said frame and presenting a planar heat transfer face for intimate contact with a planar surface and means for reading said temperature measuring instrument and being adapted to provide a temperature readout over said range of temperatures; said temperature measuring instrument being in contact with said heat transfer plate, said planar heat transfer face defining the area of thermal contact with such planar surface, said thin metal plate occupying a major portion of the surface area of said exterior surface of said frame for maximizing heat transfer to said temperature measuring instrument and for minimizing response time of said temperature sensing device, said thin metal plate being coated with a thermal insulating material at its end and side edges to essentially isolate said plate from thermal effects of surrounding conditions when in use.
Claim 4
Dependent Claim
204 words
A portable temperature sensing device adapted to maximize heat transfer from a selected location on a planar surface to the device while minimizing heat transfer from surrounding conditions, comprising a frame made of thermal insulating material provided with a sealed cavity operable over a range of temperatures, a thin metal heat transfer plate having a high thermal conductivity and extending from said cavity, and projecting slightly beyond the exterior surface of said frame and presenting a planar heat transfer face for intimate contact with a planar surface and means for reading said temperature measuring instrument and being adapted to provide a temperature readout over said range of temperatures; said temperature measuring instrument being in contact with said heat transfer plate, said planar heat transfer face defining the area of thermal contact with such planar surface, said thin metal plate occupying a major portion of the surface area of said exterior surface of said frame for maximizing heat transfer to said temperature measuring instrument and for minimizing response time of said temperature sensing device, said thin metal plate being coated with a thermal insulating material at its end and side edges to essentially isolate said plate from thermal effects of surrounding conditions when in use.
Claim 5
Dependent Claim
32 words
A portable temperature sensing device as claimed in claim 11 wherein said frame is provided with triangular portions adapted to releasably engage adhesive tape to secure said device to such planar surface.
Claim 6
Dependent Claim
31 words
A portable temperature device as claimed in claim 3, wherein said frame is provided with triangular portions adapted to releasably engage adhesive tape to secure said device to such planar surface.
References Cited (Backward Citations)
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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) | 1982-11-12 | 1983-05-14 | 1983-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-12 | 1987-05-14 | 1987-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-12 | 1991-05-14 | 1991-11-13 | $7700.00 | Window Closed / Lapsed |