US4159678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propellant charge casing
Assignee: Rheinmetall Industrie AG
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Filing: 1977-09-15
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Granted: 1979-07-03
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Expires: 1997-09-15
Abstract
Abstract A casing for a projectile that includes a combustible propellant container is improved by the addition of a flexible spring steel bearing plate that includes a number of holes for the purpose of facilitating combustion of the propellant container and a number of radial slits to increase the plate's flexibility.
Inventors
- 👤 Hans-Werner Luther
- 👤 Peter Bender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:31
CPC Classifications
F; F42; F42B; F42B5/00; F42B5/02; F42B5/18; F42B5/181; F42B5/26; Y; Y10; Y10S; Y10S102/00; Y10S102/70
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
155 words
A casing for a propellant comprising: a cylindrically symmetric base having a muzzle end and a primer end, in which said base includes a rim extending out from said primer end, forming a cup and ending in a lip, and in which base, said primer end includes axially centered means for connecting a primer cap, a combustible charge container disposed within said cup formed by said rim, and having an aperture through which said means for connecting a primer cap extends, a resilient bearing plate member disposed about said means for connecting a primer cap and within said combustible container, said resilient bearing plate is formed from spring steel, has a plurality of apertures extending therethrough and has a plurality of radial slits extending inward from a periphery, and fastening means for attaching said resilient bearing plate to said means for connecting a primer cap, whereby said combustible propellant case is confined within said base.
Claim 2
Dependent Claim
155 words
A casing for a propellant comprising: a cylindrically symmetric base having a muzzle end and a primer end, in which said base includes a rim extending out from said primer end, forming a cup and ending in a lip, and in which base, said primer end includes axially centered means for connecting a primer cap, a combustible charge container disposed within said cup formed by said rim, and having an aperture through which said means for connecting a primer cap extends, a resilient bearing plate member disposed about said means for connecting a primer cap and within said combustible container, said resilient bearing plate is formed from spring steel, has a plurality of apertures extending therethrough and has a plurality of radial slits extending inward from a periphery, and fastening means for attaching said resilient bearing plate to said means for connecting a primer cap, whereby said combustible propellant case is confined within said base.
Claim 3
Dependent Claim
16 words
A casing according to claim 1, in which said fastening means includes a circular retaining ring.
Claim 4
Dependent Claim
24 words
A casing according to claim 1, in which said fastening means includes a nut engaging threading on said means for connecting a primer cap.
Claim 5
Dependent Claim
33 words
A casing according to claim 1 in which said fastening means includes a bushing formed in said flexible bearing plate and threaded to engage threading on said means for connecting a primer cap.
Claim 6
Dependent Claim
16 words
A casing according to claim 1 in which said bearing plate forms a circular retaining ring.
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) | 1982-07-02 | 1983-01-01 | 1983-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-02 | 1987-01-01 | 1987-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-02 | 1991-01-01 | 1991-07-03 | $7700.00 | Window Closed / Lapsed |