US3382920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator structure with variable emissivity
Assignee: Westinghouse Electric Corp
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Filing: 1965-03-16
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Granted: 1968-05-14
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Expires: 1985-03-16
Abstract
No abstract record available.
Inventors
- 👤 Walter H Esselman
- 👤 Walter G Roman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:03
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/22; B64G1/52; B64G1/58; B64G1/46; B64G1/50; B64G1/503; Y; Y10; Y10S; Y10S165/00; Y10S165/51; Y10S165/512
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A COMPOSITE RADIATIVE MEMBER SHAPED FOR USE IN A RADIATOR STRUCTURE, SAID MEMBER COMPRISING A FIRST THERMALLY EMISSIVE MATERIAL HAVING A RELATIVELY LOW VAPOR PRESSURE FORMING AT LEAST PART OF SAID MEMBER AND SUBSTANTIALLY COEXTENDING WITH THE RADIATIVE SURFACE THEREOF, A SECOND EMISSIVE MATERIAL COATED UPON SAID FIRST MATERIAL AND SUBSTANTIALLY COEXTENDING THEREWITH, THE COEFFICIENT OF EMISSIVITY OF SAID SECOND EMISSIVE MATERIAL BEING SUBSTANTIALLY LOWER FROM THAT OF SAID FIRST EMISSIVE MATERIAL, AND SAID SECOND EMISSIVE MATERIAL HAVING THE PROPERTY WHICH CAUSES IT TO EVAPORATE IN A VACUUM ENVIRONMENT TO EXPOSE SAID FIRST EMISSIVE MATERIAL, WHEN SAID MEMBER IS PLACED IN A VACUUM ENVIRONMENT.
References Cited (Backward Citations)
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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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |