US3100446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas operated devices
Assignee: Olin Corp
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Filing: 1960-12-09
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Granted: 1963-08-13
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Expires: 1980-12-09
Abstract
No abstract record available.
Inventors
- 👤 Foster Harry Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:00
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/04; F42B3/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7834
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
186 words
A GAS OPERATED DEVICE COMPRISING A CARTRIDGE HAVING A MAIN CHAMBER AND A SECONDARY CONTROL CHAMBER, GAS INLET MEANS AT ONE END OF THE MAIN CHAMBER AND LATERAL DISCHARGE OUTLETS IN THE SIDE WALLS OF THE MAIN CHAMBER, SAID CONTROL CHAMBER POSITIONED ADJACENT THE OTHER END OF SAID MAIN CHAMBER, A MAIN VALVE SLIDABLY MOUNTED IN THE CARTRIDGE BETWEEN THE MAIN AND SECONDARY CHAMBERS AND NORMALLY POSITIONED TO SPAN AND SEAL SAID DISCHARGE OUTLETS, THE END OF THE MAIN VALVE REMOTE FROM THE GAS INLET MEANS HAVING A GREATER CROSS SECTIONAL AREA EXPOSED TO THE PRESSURE IN THE CHAMBERS THAN THE OPPOSITE END OF SAID VALVE, THIS DIFFERENTIAL AREA BEING EFFECTIVE TO URGE THE MAIN VALVE INTO SEALING ENGAGEMENT WITH THE DISCHARGE OUTLETS DURING CHARGING OF THE CARTRIDGE, A PRESSURE EQUALIZING VENT EXTENDING FROM THE MAIN CHAMBER TO THE CONTROL CHAMBER, A PRESSURE RESPONSIVE CONTROL PISTON SLIDABLY MOUNTED IN THE CONTROL CHAMBER, THE END OF THE CONTROL PISTON ADJACENT THE MAIN VALVE HAVING A GREATER CROSS SECTIONAL AREA EXPOSED TO THE PRESSURE IN THE CHAMBER THAN THE CROSS SECTIONAL AREA AT THE OPPOSITE END OF SAID
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |