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US4314419A Expired / Lapsed US ⏱️ 0.0 years remaining

Rifle magazine device

Assignee: ALPHA ARMS Inc
•
Filing: 1979-12-07
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Granted: 1982-02-09
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Expires: 1999-12-07
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Abstract

Abstract A rifle having a stock, a receiver, a barrel, a trigger assembly, a magazine, and stock inserts forming mounting blocks for supporting the receiver in the stock. The magazine is a removable integral sheet metal member with inwardly turned longitudinal retainer flanges along the top rear edges of the side walls, a vertical internal retainer boss along each side wall spaced forwardly from the retainer flanges, cartridge case loading ramp edge surfaces along the top edge of each of the side walls of the magazine spaced from the longitudinal retainer flanges, and internal stops on the side walls for limiting the upward movement of a follower within the magazine. The stock inserts are longitudinally spaced mounting blocks having upper cylindrical surface portions fitting the cylindrical surface of the bottom of the receiver along the forward and back ends of the receiver and rectangular side, bottom, and end surfaces for mounting the stock inserts in rectangular cavities in the rifle stock.

Inventors

  • 👤 Homer E. Koon, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 07:31
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/61; F41A9/64; F41A9/65

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 164 words
A rifle magazine adapted to be mounted in a rifle having a receiver, said magazine being at a position in said rifle opening into said receiver of said rifle and comprising: opposite spaced substantially parallel side walls; a rear end wall secured along opposite side edges with rear end edges of said side walls; a forward end wall parallel with said rear end wall and perpendicular with said side walls secured along opposite side edges with forward end edges of said side walls; a cartridge shell case retainer flange along the top edge of the rear portion of each of said side walls; an internal cartridge case retainer boss across each side wall forward of and perpendicular to said retainer flanges; and an upwardly and forwardly sloping top guide edge surface on each of said side walls along each of said retainer bosses for guiding cartridge cases upwardly and inwardly as said cartridge cases are moved toward said forward wall from said retainer flanges.
Claim 2
Dependent Claim 164 words
A rifle magazine adapted to be mounted in a rifle having a receiver, said magazine being at a position in said rifle opening into said receiver of said rifle and comprising: opposite spaced substantially parallel side walls; a rear end wall secured along opposite side edges with rear end edges of said side walls; a forward end wall parallel with said rear end wall and perpendicular with said side walls secured along opposite side edges with forward end edges of said side walls; a cartridge shell case retainer flange along the top edge of the rear portion of each of said side walls; an internal cartridge case retainer boss across each side wall forward of and perpendicular to said retainer flanges; and an upwardly and forwardly sloping top guide edge surface on each of said side walls along each of said retainer bosses for guiding cartridge cases upwardly and inwardly as said cartridge cases are moved toward said forward wall from said retainer flanges.
Claim 3
Dependent Claim 35 words
A rifle magazine in accordance with claim 1 wherein said magazine includes an internal follower retainer lug across the top edge of each of said side walls between said guide surface and said forward wall.
Claim 4
Dependent Claim 24 words
A rifle magazine in accordance with claim 2 wherein the bottom side wall edges slope upwardly from said rear wall to said forward wall.
Claim 5
Dependent Claim 48 words
A rifle magazine in accordance with claim 3 wherein each of said side walls has a central vertical upper portion between said retainer flange and said guide edge along said side wall, said central vertical portion having an upper edge above said retainer flange of said side wall.
Claim 6
Dependent Claim 22 words
A rifle magazine in accordance with claim 4 wherein said magazine is formed of sheet material as an integral one piece member.
Claim 7
Dependent Claim 14 words
A rifle magazine in accordance with claim 5 wherein said sheet material is metal.
Claim 8
Dependent Claim 40 words
A rifle magazine in accordance with claim 4 wherein said rear wall and said forward wall each has a concave upper edge surface formed on a radius substantially equal to the radius of the adjacent portion of said rifle receiver.

References Cited (Backward Citations)

US1306972A Cited
US1331155A Cited
US2434269A Cited
US2715290A Cited
US2903809A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-02-08 1985-08-10 1986-02-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-02-08 1989-08-10 1990-02-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-02-08 1993-08-10 1994-02-09 $7700.00 Window Closed / Lapsed

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