Gas generator
Abstract
Abstract A LIGHTWEIGHT MULTI-PHASE GAS GENERATOR HAVING A SINGLE PRESSURE CHAMBER DEFINING TUBE CONTAINING A ROCKET PROPELLANT GRAIN. A BOOSTER GRAIN IS CONCENTRICALLY INTERGRAL WITH THE PROPELLANT GRAIN REARWARD END AND HAS BONDED THERETO AN END PORTION OF A FRANGIBLE AND FLEXIBLE BOOT THAT LINES THE CENTRAL LONGITUDIANL PASSAGE OF THE PROPELLANT GRAIN. ALIGNED APERTURES IN THE BOOSDTER GRAIN AND BOOT END PORTION PLACE THE IGNITER IN FLUID COMMUNICATION WITH THE BOOT INTERIOR, SUCH THAT UPON BOOSTER GRAIN IGNITION DEVELOPED PRESSURE GAS WILL EXPAND THE BOOT WALL OUTWARDLY TO PROTECT THE INNER SURFACE OF THE ROCKET PROPELLANT GRAIN FORM PREMATURE IGNITION BEFORE SUBSTANTIAL COMPLETION OF THE INITIAL BOOSTER PHASE.
Inventors
- 👤 Joseph B Mccormick
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |