Patent US4031828A successfully refreshed from Google Patents.
US4031828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressurized chaff canister
Assignee: United States Department of the Air Force
•
Filing: 1976-01-28
•
Granted: 1977-06-28
•
Expires: 1996-01-28
Abstract
Abstract A self pressurizing chaff canister having a frangible enclosure containing a chaff matrix and having an end cap with a spring loaded fracture pin, and gas ports, held in a case by shear pins, the case in turn is secured in a housing by a threaded electrical squib whereupon firing of the squib will shear the pins, force the enclosure from the case while simultaneously pressurizing the enclosure, whereupon ejection of the enclosure from the case will cause the fracture pin to strike the case at which time the chaff be appropriately disbursed.
Inventors
- 👤 Laverne J. Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:31
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/56; F42B12/70
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
59 words
A self pressurized chaff canister comprising: a housing; lining means within the housing; case means having open ends movably positioned within the lining means; first and second end cap means adapted to cover the ends of said case means, and electric squib means for generating a gas to fill said case means and move said case within the housing.
Claim 2
Dependent Claim
59 words
A self pressurized chaff canister comprising: a housing; lining means within the housing; case means having open ends movably positioned within the lining means; first and second end cap means adapted to cover the ends of said case means, and electric squib means for generating a gas to fill said case means and move said case within the housing.
Claim 3
Dependent Claim
18 words
A self pressurized chaff canister according to claim 1 wherein said case means is formed of frangible glass.
Claim 4
Dependent Claim
29 words
A self pressurized chaff canister according to claim 2 wherein said first end cap includes shear pin means adapted to secured said liner and restrain the case from movement.
Claim 5
Dependent Claim
34 words
A self pressurized chaff canister according to claim 3 wherein said first end cap includes a spring biased fracture pin adapted to strike said case when said case is no longer within said liner.
Claim 6
Dependent Claim
32 words
A self pressurized chaff canister according to claim 4 wherein said first end cap further includes shaped openings whereby gas entering said case means will be impeded from leaving said case means.
References Cited (Backward Citations)
US3137231A
Cited
US3064575A
Cited
US3095814A
Cited
GB1029240A
Cited
US3837278A
Cited
US3899975A
Cited
US3797394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |