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Patent US3302419A successfully refreshed from Google Patents.
US3302419A
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Vacuum jacket siphon for cryogenic fluids
Assignee: Max-Planck-Gesellschaft zur Förderung der Wissenschaften eV
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Filing: 1965-05-14
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Granted: 1967-02-07
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Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 Walter Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:09
CPC Classifications
F; F17; F17C; F17C6/00; F16; F16L; F16L59/00; F16L59/06; F16L59/065; F17C2201/00; F17C2201/01; F17C2201/0128; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0352; F17C2205/0358; F17C2223/00; F17C2223/04; F17C2223/042; F17C2223/046; F17C2223/047; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32; Y02P; Y02P90/00; Y02P90/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A VACUUM JACKET SIPHON FOR LIQUIDS HAVING LOW BOILING POINTS FOR USE IN CONJUNCTION WITH A WORKING CONTAINER FROM WHICH AN EXHAUST GAS MAY BE DRAWN, SAID SIPHON COMPRISING, IN COMBINATION: MEANS FORMING A CHANNEL FOR SUCH LIQUIDS; MEANS FORMING A VACUUM JACKET ABOUT SAID CHANNEL MEANS SO AS TO PROVIDE AN EVACUATED CHAMBER THEREBETWEEN; RADIATION SHIELD MEANS DISPOSED IN THE EVACUATED CHAMBER BETWEEN SAID CHANNEL MEANS AND SAID VACUUM JACKET MEANS AND SURROUNDING SAID CHANNEL MEANS FOR SHIELDING THE LATTER FROM RADIATION; AND HEAT EXCHANGE MEANS IN THERMAL CONTACT WITH THE RADIATION SHIELD MEANS FOR CONDUCTING A FLOW OF SUCH EXHAUST GAS THERETHROUGH TO ABSORB HEAT FROM THE RADIATION SHIELD MEANS.
Claim 2
Dependent Claim
112 words
A VACUUM JACKET SIPHON FOR LIQUIDS HAVING LOW BOILING POINTS FOR USE IN CONJUNCTION WITH A WORKING CONTAINER FROM WHICH AN EXHAUST GAS MAY BE DRAWN, SAID SIPHON COMPRISING, IN COMBINATION: MEANS FORMING A CHANNEL FOR SUCH LIQUIDS; MEANS FORMING A VACUUM JACKET ABOUT SAID CHANNEL MEANS SO AS TO PROVIDE AN EVACUATED CHAMBER THEREBETWEEN; RADIATION SHIELD MEANS DISPOSED IN THE EVACUATED CHAMBER BETWEEN SAID CHANNEL MEANS AND SAID VACUUM JACKET MEANS AND SURROUNDING SAID CHANNEL MEANS FOR SHIELDING THE LATTER FROM RADIATION; AND HEAT EXCHANGE MEANS IN THERMAL CONTACT WITH THE RADIATION SHIELD MEANS FOR CONDUCTING A FLOW OF SUCH EXHAUST GAS THERETHROUGH TO ABSORB HEAT FROM THE RADIATION SHIELD MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |