Patent US5900025A successfully refreshed from Google Patents.
Patent US3693447A successfully refreshed from Google Patents.
US3693447A
Expired / Lapsed
US
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Radiant heat flow meter
Assignee: Resonac Holdings Corp
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Filing: 1970-12-29
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Granted: 1972-09-26
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Expires: 1990-12-29
Abstract
Abstract A radiant heat flow meter is constructed of thermally resistant plates disposed on two faces of a thin plate of good heat conductivity. One or more pairs of differential thermocouples are disposed on the surfaces of the thermally resistant plates and connected with each other. Black thermally resistant plates are arranged in contact with the thermocouples and thin transparent plates overly the black plates so as to form air layers therebetween.
Inventors
- 👤 Sadao Sumikama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:54
CPC Classifications
G; G01; G01K; G01K17/00; G01J; G01J5/00; G01J5/10; G01J5/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
102 words
A radiant heat flow meter comprising: a thin plate of good thermal conductivity; thermally resistant plates disposed on two faces of said thin plate; said thin plate extending beyond the edges of said thermolly resistant plates so as to be maintaind at a temperature substantially equal to the ambient temperature; at least one pair of mutually connected temperature measuring bodies disposed on the surfaCes of said thermally resistant plates; black thermally resistant plates disposed in contact with said temperature measuring bodies; and transparent thin plates covering said black plates so as to form air layers on the outside of said black plate.
Claim 2
Dependent Claim
102 words
A radiant heat flow meter comprising: a thin plate of good thermal conductivity; thermally resistant plates disposed on two faces of said thin plate; said thin plate extending beyond the edges of said thermolly resistant plates so as to be maintaind at a temperature substantially equal to the ambient temperature; at least one pair of mutually connected temperature measuring bodies disposed on the surfaCes of said thermally resistant plates; black thermally resistant plates disposed in contact with said temperature measuring bodies; and transparent thin plates covering said black plates so as to form air layers on the outside of said black plate.
Claim 3
Dependent Claim
18 words
A radiant heat flow meter as claimed in claim 1 wherein said temperature measuring bodies are differential thermocouples.
Claim 4
Dependent Claim
18 words
A radiant heat flow meter as claimed in claim 1 wherein said temperature measuring bodies are differential thermometers.
References Cited (Backward Citations)
US1528383A
Cited
US3131304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |