US3105361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zero gravity vent system
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1961-11-20
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Granted: 1963-10-01
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Expires: 1981-11-20
Abstract
No abstract record available.
Inventors
- 👤 Leo R Bell
- 👤 Jr Harold E Britton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:01
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/008
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
144 words
THE METHOD OF VENTING GAS FROM A CONFINED SOURCE OF SUPPLY OF FLUID HAVING LIQUID AND GASEOUS COMPONENTS, WHICH INCLUDES THE STEPS OF DRIVING A SUPPLY OF FLUID FROM SAID SOURCE OF SUPPLY IN THE FORM OF A STREAM THROUGH A CLOSED CIRCUIT, AT ONE POINT IN THE CIRCUIT SUBJECTING THE STREAM TO A CENTRIFUGING OPERATION TO DIVIDE THE STREAM INTOA LIQUID PHASE AND A GASSEOUS PHASE, AT A SECOND POINT IN THE CIRCUIT AND SPECIFICALLY IN THE GASEOUS PHASE, EXPANDING THE GASES IN THE GASEOUS PHASE TO DRIVE A TURBINE MOTOR, AT A THIRD POINT IN THE CIRCUIT PASSING THE EXPANDED GASES FROM THE TURBINE MOTOR IN HEAT EXCHANGE RELATION WITH THE LIQUID PHASE OF THE STREAM, VENTING THE GASEOUS PHASE OF THE STREAM OUT OF THE CIRCUIT AND RECYCLING THE COOLED LIQUID PHASE OF THE STREAM BACK TO THE SOURCE OF SUPPLY.
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |