US3199289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal and shot start device
Assignee: Olin Corp
•
Filing: 1963-04-29
•
Granted: 1965-08-10
•
Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Ramsay Marcus
- 👤 Glenn R Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:30
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A TOOL POWERED BY A LIQUID PROPELLANT MIXTURE INCLUDING A BARREL, A WORKING PISTON SLIDABLY MOUNTED IN SAID BARREL, A COMBUSTION CHAMBER IN SAID BARREL HAVING A TAPERED OPENING AT ONE END, A TAPERED HEAD JOINED TO SAID PISTON, SAID TAPERED HEAD AND SAID TAPERED OPENING OPERATIVE WHEN SEATED TO FORM A LOCKING TAPER EFECTIVE TO PNEUMATICALLY SEAL SAID COMBUSTION CHAMBER, SAID LOCKING TAPER SEALING SAID COMBUSTION CHAMBER TO A PREDETERMINED PRESSURE LEVEL AND RELEASING WHEN SAID PREDETERMINED PRESSURE LEVEL IS EXCEEDED SO THAT THE PRESSURE IN SAID CHAMBER CAN ACT ON SAID PISTON TO DRIVE SAID PISTON FORWARD IN SAID BARREL, A COMPRESSION PISTON SLIDABLY MOUNTED IN SAID COMBUSTION CHAMBER AND OPERATIVE TO COMPRESS SAID PROPELLANT TO IGNITION, SAID PREDETERMINED PRESSURE NECESSARY TO RELEASE SAID LOCKING TAPER BEING WELL ABOVE THE LEVEL NECESARY TO ACOMPLISH COMPRESSION IGNITION OF SAID PROPELLANT MIXTURE.
Claim 2
Dependent Claim
142 words
A TOOL POWERED BY A LIQUID PROPELLANT MIXTURE INCLUDING A BARREL, A WORKING PISTON SLIDABLY MOUNTED IN SAID BARREL, A COMBUSTION CHAMBER IN SAID BARREL HAVING A TAPERED OPENING AT ONE END, A TAPERED HEAD JOINED TO SAID PISTON, SAID TAPERED HEAD AND SAID TAPERED OPENING OPERATIVE WHEN SEATED TO FORM A LOCKING TAPER EFECTIVE TO PNEUMATICALLY SEAL SAID COMBUSTION CHAMBER, SAID LOCKING TAPER SEALING SAID COMBUSTION CHAMBER TO A PREDETERMINED PRESSURE LEVEL AND RELEASING WHEN SAID PREDETERMINED PRESSURE LEVEL IS EXCEEDED SO THAT THE PRESSURE IN SAID CHAMBER CAN ACT ON SAID PISTON TO DRIVE SAID PISTON FORWARD IN SAID BARREL, A COMPRESSION PISTON SLIDABLY MOUNTED IN SAID COMBUSTION CHAMBER AND OPERATIVE TO COMPRESS SAID PROPELLANT TO IGNITION, SAID PREDETERMINED PRESSURE NECESSARY TO RELEASE SAID LOCKING TAPER BEING WELL ABOVE THE LEVEL NECESARY TO ACOMPLISH COMPRESSION IGNITION OF SAID PROPELLANT MIXTURE.
References Cited (Backward Citations)
US2030686A
Cited
US1914250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |