US3083870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive liquid expulsion device for fuel tanks
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1960-08-29
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Granted: 1963-04-02
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Expires: 1980-08-29
Abstract
No abstract record available.
Inventors
- 👤 Paul M Gillespie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:55
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/02; B64D37/14; B64D37/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
THE METHOD OF FEEDING FLOWING MATERIALS FROM A FLOWING MATERIAL CONTAINING STORAGE TANK THROUGH A STORAGE TANK OUTLET COMPRISING: UNCOILING A COILED FLEXIBLE ELONGATED BLADDER AND FORCING THE BLADDER AGAINST A RUPTURABLE DIAPHRAGM WHICH SEPARATES THE FLOWABLE MATERIAL FROM THE COILED BLADDER, EXPANDING THE BLADDER AND RUPTURING THE DIAPHRAGM BY THE FORCE OF THE EXPANDING BLADDER THEREAGAINST, ELONGATING THE BLADDER THROUGH THE RUPTURED DIAPHRAGM INTO THE FLOWABLE MATERIAL, AND EXPANDING THE ELONGATED BLADDER TO FORCE FLOWABLE MATERIAL GRADUALLY OUT OF THE OUTLET.
References Cited (Backward Citations)
US1117639A
Cited
US1977862A
Cited
US2333451A
Cited
US2387598A
Cited
US2410310A
Cited
US2831492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |