US3097768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid storage vessel
Assignee: Aerojet Rocketdyne Inc
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Filing: 1960-01-11
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Granted: 1963-07-16
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Expires: 1980-01-11
Abstract
No abstract record available.
Inventors
- 👤 Angelo G Tasca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:14
CPC Classifications
F; F17; F17C; F17C1/00; F17B; F17B1/00; F17B1/02; F17B1/04; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0176; F17C2201/019; F17C2201/05; F17C2201/056; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0617; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0388; F17C2205/0394; F17C2205/0397; F17C2209/00; F17C2209/22; F17C2209/221; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/014; F17C2221/016; F17C2221/017; F17C2221/03; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/013; F17C2223/0146; F17C2223/0153; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2227/0157
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN A LIQUID STORING AND DISPENSING DEVICE THE COMBINATION OF A TANK AND A PISTON ASSEMBLY, SAID PISTON ASSEMBLY INCLUDING AN UPPER PORTION AND A LOWER PORTION, A SEAL INTERPOSED BETWEEN SAID PISTON UPPER PORTION AND SAID PISTON LOWER PORTION, SAID PORTION LOWER PORTION HAVING A CLOSED END CAPABLE OF RETAINING FLUID PRESSURE, A FIRST PRESSURE AREA ISOLATED BELOW SAID PISTON ASSEMBLY, A SECOND PRESSURE AREA ISOLATED ABOVE SAID PISTON ASSEMBLY, A RESILIENT ELEMENT TENDING TO PLACE SAID PISTON LOWER PORTION AND SAID PISTON UPPER PORTION IN A COLLAPSED POSITION AND TENDING TO PUT SAID SEAL IN COMPRESSION, AND IN SEALING RELATION WITH SAID TANK, WHEREBY IF THE PRESSURE IN SAID FIRST PRESSURE AREA IS REDUCED IN PRESSURE BELOW THE PRESSURE OF SAID SECOND PRESSURE AREA, THE PRESSURE IN SAID SECOND PRESSURE AREA WILL TEND TO FORCE SAID PISTON LOWER PORTION AND SAID PISTON UPPER PORTION INTO AN UNCOLLAPSED POSITION AND SAID SEAL WITHDRAWN FROM SEALING RELATION
Claim 2
Dependent Claim
157 words
IN A LIQUID STORING AND DISPENSING DEVICE THE COMBINATION OF A TANK AND A PISTON ASSEMBLY, SAID PISTON ASSEMBLY INCLUDING AN UPPER PORTION AND A LOWER PORTION, A SEAL INTERPOSED BETWEEN SAID PISTON UPPER PORTION AND SAID PISTON LOWER PORTION, SAID PORTION LOWER PORTION HAVING A CLOSED END CAPABLE OF RETAINING FLUID PRESSURE, A FIRST PRESSURE AREA ISOLATED BELOW SAID PISTON ASSEMBLY, A SECOND PRESSURE AREA ISOLATED ABOVE SAID PISTON ASSEMBLY, A RESILIENT ELEMENT TENDING TO PLACE SAID PISTON LOWER PORTION AND SAID PISTON UPPER PORTION IN A COLLAPSED POSITION AND TENDING TO PUT SAID SEAL IN COMPRESSION, AND IN SEALING RELATION WITH SAID TANK, WHEREBY IF THE PRESSURE IN SAID FIRST PRESSURE AREA IS REDUCED IN PRESSURE BELOW THE PRESSURE OF SAID SECOND PRESSURE AREA, THE PRESSURE IN SAID SECOND PRESSURE AREA WILL TEND TO FORCE SAID PISTON LOWER PORTION AND SAID PISTON UPPER PORTION INTO AN UNCOLLAPSED POSITION AND SAID SEAL WITHDRAWN FROM SEALING RELATION
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |