# US 10,371,471 B2 · Methods of firearm operations

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- Number: US 10,371,471 B2
- Document ID: US10371471B2
- Status: Granted
- Kind: B2
- Application number: 15/638,927
- Filed: 2017-06-30
- Published: 2017-10-19
- Granted: 2019-08-06
- Earliest claimed: 2014-01-14
- Assignees: D.A. Wiese & Co., LLC
- Applicants: D.A. Wiese & Co., LLC
- Inventors: Olaf N. Lee
- Web page: https://patentgrep.com/patent/US10371471B2

## CPC

- F41A 3/66: Breech housings or frames; Receivers
- F41A 3/38: having rocking locking elements, e.g. pivoting levers or vanes
- F41A 9/55: Fixed {or movable} guiding means, mounted on, or near, the cartridge chamber
- F41A 19/35: Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement
- F41C 3/00: Pistols, e.g. revolvers (specially adapted for underwater use F41C9/06; for slaughtering or stunning animals A22B; for shooting bolts into concrete constructions, metal walls or the like B25C)
- F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41C: SMALLARMS, e.g. PISTOLS, RIFLES (functional features or details common to both smallarms and ordnance, mountings therefor F41A; projecting missiles without use of explosive or combustible propellant charge F41B); ACCESSORIES THEREFOR

## Abstract

A firearm includes a frame to which a barrel and slide are slideably mounted and in which a magazine is slideably received. A bumper telescoped on a push rod slideable with the slide pushes a shell in the magazine onto a pivotal carrier. Locking wings pivotally mounted to the barrel are cammed in troughs of a cam block as the barrel and the slide parallel to the longitudinal axis of the barrel relative to the cam block, so that lock tabs are removably received in locking recesses in the slide to removably lock the barrel and slide together. A trigger is slideably mounted to the frame for movement parallel to the longitudinal axis of the barrel for pivoting a sear lever engagable with a biased striker and moving a safety from an interfering position relative to the striker.

## Claims

### Claim 1

Firearm comprising, in combination: a frame; a barrel carried by the frame; a slide slideable along a longitudinal axis relative to the frame; a trigger moveably mounted to the frame; a striker moveably mounted relative to the frame for striking a bullet located in the barrel, with the trigger operatively connected to the striker; a magazine slideably received in the frame, with the magazine having a top having a front and back cut in relief, with the magazine holding a shell extending parallel to the longitudinal axis against the top; a push rod mounted to the slide parallel to the longitudinal axis and aligned with the shell in the magazine; and a bumper slideably mounted to the push rod for movement parallel to the longitudinal axis relative to the push rod and biased toward the magazine and engaging with the shell in the magazine.

### Claim 2

A firearm comprising, in combination: a frame; a barrel carried by the frame; a slide slideable along a longitudinal axis relative to the frame; a trigger moveably mounted to the frame; a striker moveably mounted relative to the frame for striking a bullet located in the barrel, with the trigger operatively connected to the striker; a magazine slideably received in the frame, with the magazine having a top having a front and back cut in relief, with the magazine holding a shell extending parallel to the longitudinal axis against the top; a push rod mounted to the slide parallel to the longitudinal axis and aligned with the shell in the magazine; and a bumper slideably mounted to the push rod and biased toward the magazine and engaging with the shell in the magazine, wherein the push rod is tubular and includes a head, wherein the bumper is slideably received in the push rod; and wherein a biasing element is located in the push rod and sandwiched between the head of the push rod and the bumper.

### Claim 3 (depends on 2)

The firearm as defined in claim 2, wherein the bumper includes a recess, wherein a pin extends through the push rod and the recess to define a slide extent of the bumper; wherein the biasing element is a compression spring; and wherein the barrel is parallel to the longitudinal axis, with the slide slideable relative to the barrel.