Hinge Pin Connector
First Claim
1. An integral hinge pin connector for a firearm, the hinge pin connector comprising:
- a substantially horizontal shelf member extending from an outer surface of a firearm receiver;
a containing member extending downwardly from the outer surface of the receiver to define a longitudinal slot between the containing member and the receiver surface, the slot aligned with the axis of the firearm and having a cross dimension in at least one direction that is approximately equal to the diameter of a hinge pin to be secured in the connector; and
wherein the shelf member, the containing member, and the surface of the receiver are configured to retain an ejection port hinge pin in a substantially horizontal position.
3 Assignments
0 Petitions
Accused Products
Abstract
Improvements and modifications in the rifle and submachine gun platforms to improve accuracy, improve user functionality, simplify and improve the machining and manufacturing and assembly process are presented. Specifically, the disclosure describes a hinge pin connection system for an access door, a retention mechanism that eliminates freedom of movement for hand guards, cuts in a barrel extension that reduce or eliminate barrel rotation, a barrel retention mechanism that allows for securing of a barrel from the sides of a firearm, a dove tail connection between an up rod and bolt carrier, and an aperture located on a lower receiver for mounting slings and other accessories.
38 Citations
16 Claims
-
1. An integral hinge pin connector for a firearm, the hinge pin connector comprising:
-
a substantially horizontal shelf member extending from an outer surface of a firearm receiver; a containing member extending downwardly from the outer surface of the receiver to define a longitudinal slot between the containing member and the receiver surface, the slot aligned with the axis of the firearm and having a cross dimension in at least one direction that is approximately equal to the diameter of a hinge pin to be secured in the connector; and wherein the shelf member, the containing member, and the surface of the receiver are configured to retain an ejection port hinge pin in a substantially horizontal position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of retaining a hinge pin in a firearm, the method comprising:
-
placing a first end of the hinge pin in a bore positioned behind an ejection port; pivoting a second end of the hinge pin upwardly; pushing the second end of the hinge pin under a containing member that is integral to the firearm; and securing the pin against three points of contact including the bore, the containing member and a shelf member that is integral to the firearm receiver. - View Dependent Claims (9, 10, 11)
-
-
12. A method of securing a hinge pin to a firearm, the method comprising:
-
sliding a first end of a hinge pin axially into a receiving cavity between a shelf member and a containing member wherein the receiving cavity, shelf member and containing member are all integral to the firearm receiver; pivoting the second end of the hinge pin upwardly while the first end is supported by the shelf member; and moving the hinge pin into a slot behind the containing member until the axis of the hinge pin is aligned with the axis of the firearm. - View Dependent Claims (13, 14, 15, 16)
-
Specification