IP Library Granted Patent US 8,539,707
Granted Patent B1
US 8,539,707 · App. 13/494,441 · Granted Sep 24, 2013

Device to prevent over-rotation of pistol ejector

Inventor: Lucio Di Trolio (Mineola, NY)
Assignee: Kimber IP, LLC
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Quick Facts
Patent No.
US 8,539,707
App. No.
13/494,441
Granted
Sep 24, 2013
Kind
B1
Abstract

A pistol having a device to prevent ejector over-rotation is provided. The pistol includes a frame having an upper rear portion having a left side wall and a right side wall. An ejector has a first end, a second end and a pivot point. The first end has a cam surface for ejection of a spent case. The second end contacts an over-rotation stop. A sear spring is adjacent to the upper rear portion and has a cantilevered spring leg disposed adjacent to the second end of the ejector to rotably bias the ejector downward such that the first end of the ejector pivots upward. A stop is disposed between said left and right side walls to engage the second end of the ejector to limit rotational travel past the spring leg of the sear spring.

Claims (15)

1. A pistol having a device to prevent ejector over-rotation, comprising:

(a) a frame comprising a handle portion for receipt of a magazine, a barrel portion for receipt of a barrel, and an upper rear portion for receipt of a firing mechanism, the upper rear portion having a left side wall and a right side wall;

(b) an elongate ejector having a first end, a second end and a pivot point between the first end and the second end, the first end having a cam surface for ejection of a spent case, the second end for contacting an over-rotation stop, the ejector rotatably disposed in the frame between the left side wall and the right side wall at the pivot point;

(c) a sear spring disposed adjacent to said upper rear portion, said sear spring having at least one cantilevered spring leg disposed adjacent to the second end of the ejector to rotably bias the ejector downward such that the first end of the ejector pivots in an upward direction; and

(d) an over-rotation stop disposed between said left side wall and right side wall to engage the second end of the ejector to limit rotational travel of the ejector past the spring leg of the sear spring.

2. The pistol having a device to prevent ejector over-rotation of claim 1 , wherein the pivot point is a pivot pin installed through at least one aperture in the frame.

3. The pistol having a device to prevent ejector over-rotation of claim 1 , wherein the over-rotation stop is a pin installed through at least one aperture in the frame.

4. A pistol having a device to prevent ejector over-rotation, comprising:

(a) a frame comprising:

(i) a handle portion for receipt of a magazine, a barrel portion for receipt of a barrel, and an upper rear portion for receipt of a firing mechanism, the upper rear portion having a left side wall and a right side wall;

(ii) a left side wall ejector pin aperture, and a right side wall ejector pin aperture, said left side wall ejector pin aperture aligned with the right side wall ejector pin aperture, said left side wall ejector pin aperture and said right side wall ejector pin aperture disposed in the upper rear portion for receipt of an ejector pivot pin; and

(iii) at least one over-rotation pin aperture in at least one of said left side wall and right side wall, said at least one over-rotation pin aperture disposed adjacent to said ejector pin apertures;

(b) an elongate ejector having a first end, a second end and a pivot point aperture between the first end and the second end, the first end having a cam surface for ejection of a spent case, the second end for contacting an over-rotation pin, the ejector rotatably disposed in the frame between the left side wall and the right side wall by an ejector pivot pin;

(c) a sear spring disposed adjacent to said upper rear portion, said sear spring having at least one cantilevered spring leg disposed adjacent to the second end of the ejector to rotatably bias the ejector downward such that the first end of the ejector pivots in an upward direction; and

(d) the over-rotation pin disposed in said over-rotation pin apertures to provide an over-rotation stop to engage the second end of the ejector to limit rotational travel of the ejector past the cantilevered spring leg of the sear spring.

Assignments (2)
SECURITY INTEREST Recorded Jul 24, 2017
From: KIMBER IP, L.L.C.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 043073/0169 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 14, 2012
From: DI TROLIO, LUCIO
To: KIMBER IP, LLC
Reel/Frame 028373/0989 →