Thermal testing instrument
Abstract
Abstract THIS INVENTION IS AN INSTRUMENT FOR MEASURING THE THERMAL CONDUCTANCE OF A MATERIAL WHILE IT IS LOCATED WITHIN A SIMULATED WATER ENVIRONMENT OF VARIOUS DEPTHS AND PRESSURES. A HEATER HEATS ONE SIDE OF SAID MATERIAL TO A TEMPERATURE APPROXIMATELY HUMAN BODY HEAT. SAID HEATER AND MATERIAL ARE SUBMERGED IN A TRAY OF ICE WATER LOCATED IN A PRESSURE TIGHT HOUSING. GAS UNDER CONTROLLED PRESSURE CONDITIONS IS USED TO PRESSURIZE THE INSIDE OF SAID HOUSING AND, THUS, APPLY WATER DEPTH SIMULATING PRESSURES TO BOTH SIDES OF SAID WETTED MATERIAL, SO AS TO EFFECT COMPRESSION THEREOF IN PROPORTION THERETO. WHILE COMPRESSED TEMPERATURE READINGS ARE TAKEN WITH THERMOCOUPLES LOCATED ON THE HEATER SIDE OF SAID MATERIAL WHICH EFFECTIVELY INDICATE THE BODY HEAT LOSS THERETHROUGH TO SAID ICE WATER. THE HEAT LOSS, IF ANY, IS PROPORTIONAL TO THE THERMAL CONDUCTANCE OF THE MATERIAL AT ANY GIVEN DEPTH SIMULATING PRESSURE.
Inventors
- 👤 Harold S Butler Jr
- 👤 Roger K Johnson
- 👤 Robert H Payne Jr
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |