US3577860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magazine for firearms
Assignee: Heckler und Koch GmbH
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Filing: 1968-07-08
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Granted: 1971-05-11
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Expires: 1988-07-08
Abstract
Abstract A magazine consisting of plastic upper and lower components transversely split in the area of the sidewalls. The upper component comprises the magazine lips and the lower component comprises the magazine bottom. The follower spring is a rolled spring having a wound portion which engages the underside of the follower and the free end of which is secured to the inside of the upper magazine component. The magazine components are provided with relieved teeth for positive engagement at their adjoining ends; the magazine components may be provided with reinforcements at their adjoining ends, which serve simultaneously as stops by means of the magazine bearing against the end of the magazine chamber.
Inventors
- 👤 Leopold Jestrabek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:33
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/61; F41A9/64; F41A9/65; F41A9/70
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
96 words
A magazine for firearms composed of at least two plastic components, characterized in that said magazine is transversely split in the area of the sidewalls thereof, featuring an upper component and a lower component connected to said upper component, said upper component comprising magazine lips and said lower component comprising the magazine bottom, and in that a follower spring is formed by a rolled spring, the wound portion of which engages the underside of a follower and the free end of which is secured to the inside of said upper magazine component near said magazine lips.
Claim 2
Dependent Claim
96 words
A magazine for firearms composed of at least two plastic components, characterized in that said magazine is transversely split in the area of the sidewalls thereof, featuring an upper component and a lower component connected to said upper component, said upper component comprising magazine lips and said lower component comprising the magazine bottom, and in that a follower spring is formed by a rolled spring, the wound portion of which engages the underside of a follower and the free end of which is secured to the inside of said upper magazine component near said magazine lips.
Claim 3
Dependent Claim
52 words
A magazine according to claim 1, characterized in that the magazine components are provided with relieved teeth at the abutting ends thereof on two mutually opposed sidewalls, said teeth extendIng in the plane of said opposed sidewalls beyond the ends thereof for positive engagement between the teeth of the adjoining magazine components.
Claim 4
Dependent Claim
50 words
A magazine according to claim 2 for firearms with a magazine chamber which is shorter than the magazine, characterized in that the magazine components are provided with reinforcements at their adjoining ends, said reinforcements simultaneously serving as stops with which the magazine bears against the end of the magazine chamber.
Claim 5
Dependent Claim
29 words
A magazine according to claim 1, characterized in that one or more magazine components which are open at both ends are inserted between the upper and lower magazine components.
Claim 6
Dependent Claim
70 words
A magazine according to claim 1, characterized in that the free end of the roller spring is provided with at least one tab which is bent off at an angle in an outward direction and folded back onto itself in a U-shaped loop, said tab being engaged by a slot at the inside of the upper component of the magazine and retained in said slot by means of a pin.
Claim 7
Dependent Claim
53 words
A magazine according to claim 1, characterized in that the underside of the follower, approximately at the center of said follower, is provided with a transverse web extending substantially at a right angle to the axis of the rolled spring, with which said follower rests on the wound portion of the rolled spring.
Claim 8
Dependent Claim
47 words
A magazine according to claim 1, characterized in that the follower, at one of its edges, is provided with a projection, with which said follower, in its uppermost position, strikes against a shoulder of the upper component of the magazine before making contact with the magazine lips.
Claim 9
Dependent Claim
21 words
A magazine according to claim 2, characterized in that the bottom of the lower magazine component has a semicircular cross-sectional contour.
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |