Fire protection system for variable pressure chambers
Abstract
Abstract A FIRE PROTECTION SYSTEM FOR SEALED CHAMBERS OF THE TYPE FOUND IN SUCH VEHICLES AS DIVING BELLS, SPACESHIPS AND THE LIKE WHEREIN VARIATIONS IN AMBIENT PRESSURE OCCUR. THE SYSTEM EMPLOYS FIXED SPRINKLER HEADS, EACH WITH ITS OWN RESERVOIR FOR EXTINGUIDHING AGENT TO ENSURE AN INITIAL, INSTANTANEOUS SUPPLY OF AGENT UPON ACTUATION OF THE RESPECTIVE SPRINKLER HEADS. THE HEAD RESERVOIRS INCLUDE A PRESSURE TRANSMITTING MEANS TOGETHER WITH AN AGENT EXPELLING MEANS SO THAT THE AGENT THEREIN IS ALWAYS UNDER A PRESSURE IN EXCESS OF AMBIENT PRESSURE. THE HEAD RESERVOIRS ARE SUPPLIED WITH AGENT FROM A MAIN STORAGE RESERVOIR. ALSO AN AGENT RUN-OFF IS COLLECTED IN A SUMP AND RETURNED TO THE STORAGE RESERVOIR TO CONSERVE AGENT AND AVOID FLOODING.
Inventors
- 👤 Ulrich Bonne
- 👤 Joseph L Buckley
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |