US3211097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrogen squib
Assignee: Individual
•
Filing: 1964-06-29
•
Granted: 1965-10-12
•
Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Foote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:54
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/12; F42B3/124; C; C06; C06C; C06C7/00; F42B3/125; F42B3/128; F42B3/195; F42B3/198
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A PYROGEN SQUIB COMPRISING AN IGNITER ASSEMBLY; A CUP-SHAPED CASING RECEIVING SAID ASSEMBLY AND SECURED THERETO, THE END OF SAID CASING BEING SPACED FROM SAID ASSEMBLY TO DEFINE A COMPARTMENT, SAID END BEING WEAKENED SO AS TO BE ABOUT ONE-THIRD THE THICKNESS OF THE WALLS OF SAID CASING; SAID COMPARTMENT BEING SUBSTANTIALLY FILLED WITH AN INTERNAL-PERFORATED BOOSTER GRAIN AND SINGLE PORT NOZZLE PLATE; SAID IGNITER ASSEMBLY COMPRISING A PLUG MEMBER; A PAIR OF LEAD WIRES EXTENDING THROUGH SAID MEMBER, HAVING THEIR OUTER ENDS ADAPTED FOR CONNECTION TO AN ELECTRICAL SOURCE; A BRIDGEWIRE CONNECTING THE INNER ENDS OF SAID WIRES; AN INITIATION COMPOSITION POSITIONED AROUND SAID BRIDGEWIRE; SAID COMPOSITION KCONSISTING ESSENTIALLY OF 34.7% BY WEIGHT LEAD STYPHANATE, 19.3% BY WEIGHT ZIRCONIUM, 45.2% BY WEIGHT LEAD PEROXIDE AND 0.8% BY WEIGHT GUM ARABIC BINDER; A HOLLOW SPACER MOUNTED TO SAID PLUG MEMBER, THE INTERIOR OF SAID SPACER DEFINING A BORE IN WHICH ARE LOCATED SAID BRIDGEWIRE AND SAID COMPOSITION; AN IGNITION COMPOSITION KSUBSTANTIALLY FILLING THE REMAINDER OF SAID BORE; AND A CLOSURE DISC MOUNTED FIRMLY AGAINST SAID SPACER SO AS TO SEAL SAID BORE.
Claim 2
Dependent Claim
182 words
A PYROGEN SQUIB COMPRISING AN IGNITER ASSEMBLY; A CUP-SHAPED CASING RECEIVING SAID ASSEMBLY AND SECURED THERETO, THE END OF SAID CASING BEING SPACED FROM SAID ASSEMBLY TO DEFINE A COMPARTMENT, SAID END BEING WEAKENED SO AS TO BE ABOUT ONE-THIRD THE THICKNESS OF THE WALLS OF SAID CASING; SAID COMPARTMENT BEING SUBSTANTIALLY FILLED WITH AN INTERNAL-PERFORATED BOOSTER GRAIN AND SINGLE PORT NOZZLE PLATE; SAID IGNITER ASSEMBLY COMPRISING A PLUG MEMBER; A PAIR OF LEAD WIRES EXTENDING THROUGH SAID MEMBER, HAVING THEIR OUTER ENDS ADAPTED FOR CONNECTION TO AN ELECTRICAL SOURCE; A BRIDGEWIRE CONNECTING THE INNER ENDS OF SAID WIRES; AN INITIATION COMPOSITION POSITIONED AROUND SAID BRIDGEWIRE; SAID COMPOSITION KCONSISTING ESSENTIALLY OF 34.7% BY WEIGHT LEAD STYPHANATE, 19.3% BY WEIGHT ZIRCONIUM, 45.2% BY WEIGHT LEAD PEROXIDE AND 0.8% BY WEIGHT GUM ARABIC BINDER; A HOLLOW SPACER MOUNTED TO SAID PLUG MEMBER, THE INTERIOR OF SAID SPACER DEFINING A BORE IN WHICH ARE LOCATED SAID BRIDGEWIRE AND SAID COMPOSITION; AN IGNITION COMPOSITION KSUBSTANTIALLY FILLING THE REMAINDER OF SAID BORE; AND A CLOSURE DISC MOUNTED FIRMLY AGAINST SAID SPACER SO AS TO SEAL SAID BORE.
References Cited (Backward Citations)
US2079777A
Cited
US2473405A
Cited
US2624280A
Cited
US2776623A
Cited
US2696191A
Cited
US2801585A
Cited
US2872870A
Cited
US2934014A
Cited
US2955535A
Cited
US3059576A
Cited
US3009418A
Cited
US3135200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |