US3604355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propellant-loaded cartridge
Assignee: United States Department of the Navy
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Filing: 1969-02-05
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Granted: 1971-09-14
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Expires: 1989-02-05
Abstract
Abstract A cartridge having a primer disposed at one end therein and assembled by loading with a predetermined amount of charge and packing the charge in place about the primer with a resilient wad secured within the cartridge in predetermined spaced relationship with a closure plug at the other end of the cartridge.
Inventors
- 👤 William D Greenless
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:06
CPC Classifications
F; F42; F42B; F42B8/00; F42B8/02; F42B8/04; F42B7/00; F42B7/02; F42B7/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
96 words
A cartridge comprising: a substantially tubular molded casing having a base closing one end thereof and an integral sidewall, a primer within said casing and secured to said base, a propellant partially filling said casing, a substantially disc-shaped, resilient wad wedgingly supported within said casing for confining said propellant to the base end thereof, a closure plug for the other end of said casing, and spacer means extending between said resilient wad and said closure plug said spacer means including a plurality of elongated, rigid members slightly embedded at one end thereof into the resilient wad.
Claim 2
Dependent Claim
96 words
A cartridge comprising: a substantially tubular molded casing having a base closing one end thereof and an integral sidewall, a primer within said casing and secured to said base, a propellant partially filling said casing, a substantially disc-shaped, resilient wad wedgingly supported within said casing for confining said propellant to the base end thereof, a closure plug for the other end of said casing, and spacer means extending between said resilient wad and said closure plug said spacer means including a plurality of elongated, rigid members slightly embedded at one end thereof into the resilient wad.
Claim 3
Dependent Claim
14 words
A cartridge according to claim 1 wherein said resilient wad is composed of polyethylene.
Claim 4
Dependent Claim
36 words
A cartridge according to claim 2 wherein said closure plug is formed of polyurethane, and the other end of said sidewall is crimped over said closure plug to secure said plug in place within said casing.
Claim 5
Dependent Claim
33 words
A cartridge according to claim 3 wherein the lengths of said spacing members are greater than the distance separating said wad and said plug so that said plug pushes against said spacing members.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |