US 11,953,281 B2
Rifle receiver arrangement and a method of assembly of a rifle barrel to said rifle receiver
Larry Chiera, Hindmarsh (AU); and Raymond L. Dennis, Hindmarsh (AU)
Assigned to Lightforce Australia Pty Limited, Hindmarsh (AU)
Appl. No. 18/040,680
Filed by Lightforce Australia Pty Limited, Hindmarsh (AU)
PCT Filed Aug. 10, 2021, PCT No. PCT/AU2021/050873
§ 371(c)(1), (2) Date Feb. 6, 2023,
PCT Pub. No. WO2022/032334, PCT Pub. Date Feb. 17, 2022.
Claims priority of application No. 2020902870 (AU), filed on Aug. 13, 2020.
Prior Publication US 2023/0280118 A1, Sep. 7, 2023
Int. Cl. F41A 21/48 (2006.01); F41A 3/66 (2006.01)
CPC F41A 3/66 (2013.01) [F41A 21/485 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A rifle receiver arrangement, said rifle receiver arrangement including;
a main housing unit;
said main housing unit having a first end, said first end including a block member, wherein the block member at the first end of the main housing unit includes a hollow chamber, said hollow chamber adapted to receive an end of a rifle barrel and/or an intermediate member connected with said rifle barrel;
said hollow chamber including a slit, wherein the silt includes a gap, wherein the gap provides a spacing between a first face and a second face of the block member to provide a first open position, said first open position characterised to allow the end of the rifle barrel and/or the intermediate member connected with said rifle barrel to be accepted into the hollow chamber;
a slit opening/closing arrangement, said slit opening/closing arrangement including a rotatable bolt, wherein the rotatable bolt includes a circular bolt head that includes a slot that extends circumferentially about the circular bolt head, wherein rotation of the rotatable bolt in a first direction draws the first face and the second face of the block member towards each other reducing the spacing of the gap to provide a closed position, said closed position characterised by the end of the rifle barrel and/or the intermediate member connected with said rifle barrel to be fixed into the hollow chamber; and wherein rotation of the rotatable bolt in a second direction from the closed position returns the spacing of the gap of the silt between the first face and the second face to the first open position;
said slit opening/closing arrangement further including an abutment member, wherein the abutment member is a dowel member, and a body portion of the dowel member is located and configured into the slot of the circular bolt head so as to abut against a side of the slot of the circular bolt head once said rotatable bolt is rotated in the second direction beyond the first open position;
such that upon abutment between the body portion of the dowel member and the side of the slot of the circular bolt head, further rotation of said rotatable bolt in the second direction beyond the first open position increases the gap of the spacing of the slit between the first face and the second face of the block member to provide an extended open position, said extended open position characterised to allow the end of the rifle barrel and/or the intermediate member connected with said rifle barrel to be accepted less restrictively into the hollow chamber.