Patent US3131396A successfully refreshed from Google Patents.
US3131396A
Expired / Lapsed
US
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Cryogenic pumping apparatus
Assignee: General Electric Co
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Filing: 1960-09-30
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Granted: 1964-04-28
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Expires: 1980-09-30
Abstract
No abstract record available.
Inventors
- 👤 Donald J Santeler
- 👤 Franklin C Hurlbut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:18
CPC Classifications
F; F04; F04B; F04B37/00; F04B37/06; F04B37/08; B; B64; B64G; B64G7/00; B64G2007/005; Y; Y10; Y10S; Y10S165/00; Y10S165/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A SPACE SIMULATOR, MEANS DEFINING A CHAMBER, AT LEAST ONE PUMP CONNECTED TO AND ADAPTED TO SUBSTANTIALLY EVACUATE SAID CHAMBER, A SUBSTANTIALLY SPHERICAL CRYOGENIC MEMBER BEING LOCATED IN SAID CHAMBER AND BEING ADAPTED TO SUBSTANTIALLY ENVELOP A TEST MEMBER IN SAID CHAMBER, SAID CRYOGENIC MEMBER COMPRISING A WALL MEMBER, A PLURALITY OF BAFFLE FINS EXTENDING FROM SAID WALL MEMBER AND BEING ANGULARLY DISPOSED WITH RESPECT TO SAID WALL MEMBER, SAID WALL MEMBER AND BAFFLE FINS BEING THERMALLY CONNECTED, A PLURALITY OF CONDENSING FINS BEING LOCATED BETWEEN THE BAFFLE FINS AND THE WALL MEMBER WHEREBY THE CONDENSING FINS ARE SUBSTANTIALLY SHIELDED FROM THE TEST MEMBER, AND MEANS FOR MAINTAINING THE CONDENSING FINS AT A TEMPERATURE SUBSTANTIALLY LESS THAN THE TEMPERATURE OF THE WALL MEMBER.
Claim 2
Dependent Claim
124 words
IN A SPACE SIMULATOR, MEANS DEFINING A CHAMBER, AT LEAST ONE PUMP CONNECTED TO AND ADAPTED TO SUBSTANTIALLY EVACUATE SAID CHAMBER, A SUBSTANTIALLY SPHERICAL CRYOGENIC MEMBER BEING LOCATED IN SAID CHAMBER AND BEING ADAPTED TO SUBSTANTIALLY ENVELOP A TEST MEMBER IN SAID CHAMBER, SAID CRYOGENIC MEMBER COMPRISING A WALL MEMBER, A PLURALITY OF BAFFLE FINS EXTENDING FROM SAID WALL MEMBER AND BEING ANGULARLY DISPOSED WITH RESPECT TO SAID WALL MEMBER, SAID WALL MEMBER AND BAFFLE FINS BEING THERMALLY CONNECTED, A PLURALITY OF CONDENSING FINS BEING LOCATED BETWEEN THE BAFFLE FINS AND THE WALL MEMBER WHEREBY THE CONDENSING FINS ARE SUBSTANTIALLY SHIELDED FROM THE TEST MEMBER, AND MEANS FOR MAINTAINING THE CONDENSING FINS AT A TEMPERATURE SUBSTANTIALLY LESS THAN THE TEMPERATURE OF THE WALL MEMBER.
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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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |