Patent US3286472A successfully refreshed from Google Patents.
US3286472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket motor and ignition system
Assignee: ATK Launch Systems LLC
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Filing: 1964-02-24
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Granted: 1966-11-22
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Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 James R Thurston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:03
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A SOLID PROPELLANT ROCKET MOTOR AND AN IGNITION SYSTEM THEREFOR COMPRISING, IN COMBINATION, A CASING, A PERFORATED SOLID PROPELLANT CHARGE CONTAINING A COMBUSTION CHAMBER HAVING A HEAD END IN SAID CASING, SAID IGNITION SYSTEM COMPRISING A CONSUMABLE FLOW RESTRICTOR MEANS AND A COMBUSTIBLE MATERIAL CONTAINING IGNITER MOUNTED IN SAID HEAD END AND EXTENDIBLE INTERIORLY OF SAID CHAMBER, SAID RESTRICTOR MEANS DEFINING A SUB-CHAMBER WITH SAID CHAMBER HEAD END, MEANS IN SAID IGNITER FOR ACCELERATING THE HIGH TEMPERATURE GAS OBTAINED FROM COMBUSTION OF SAID COMBUSTIBLE MATERIAL INTO SAID SUB-CHAMBER TO IGNITE THE SOLID PROPELLANT IN THE HEAD END OF SAID COMBUSTION CHAM-
Claim 2
Dependent Claim
101 words
A SOLID PROPELLANT ROCKET MOTOR AND AN IGNITION SYSTEM THEREFOR COMPRISING, IN COMBINATION, A CASING, A PERFORATED SOLID PROPELLANT CHARGE CONTAINING A COMBUSTION CHAMBER HAVING A HEAD END IN SAID CASING, SAID IGNITION SYSTEM COMPRISING A CONSUMABLE FLOW RESTRICTOR MEANS AND A COMBUSTIBLE MATERIAL CONTAINING IGNITER MOUNTED IN SAID HEAD END AND EXTENDIBLE INTERIORLY OF SAID CHAMBER, SAID RESTRICTOR MEANS DEFINING A SUB-CHAMBER WITH SAID CHAMBER HEAD END, MEANS IN SAID IGNITER FOR ACCELERATING THE HIGH TEMPERATURE GAS OBTAINED FROM COMBUSTION OF SAID COMBUSTIBLE MATERIAL INTO SAID SUB-CHAMBER TO IGNITE THE SOLID PROPELLANT IN THE HEAD END OF SAID COMBUSTION CHAM-
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |