# US 11,029,105 B2 · Frame of pistol

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- Number: US 11,029,105 B2
- Document ID: US11029105B2
- Status: Granted
- Kind: B2
- Application number: 17/026,944
- Filed: 2020-09-21
- Published: 2021-04-22
- Granted: 2021-06-08
- Earliest claimed: 2019-10-17
- Applicants: Chen-Hung Tai; Hwa-Nung Lee; Yo-Lun Chang
- Inventors: Chen-Hung Tai; Hwa-Nung Lee; Yo-Lun Chang
- Web page: https://patentgrep.com/patent/US11029105B2

## CPC

- F41A 3/72: Operating handles or levers; Mounting thereof in breech-blocks or bolts {(F41C7/02, F41C7/06 take precedence)}
- F41A 9/61: Magazines
- F41A 3/66: Breech housings or frames; Receivers
- F41C 23/10: Stocks or grips for pistols, e.g. revolvers (F41C23/12 takes precedence)
- 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 frame of a pistol includes a handgrip portion, an upper frame portion, and a trigger guard. The handgrip portion defines a magazine well for accommodating a magazine. The upper frame portion is connected to the handgrip portion, and includes a barrel-receiving section having a bottom wall, two sidewalls extending upwardly and respectively from two opposite ends of the bottom wall, two through slots respectively formed in the sidewalls, a compression spring retaining groove formed in the bottom wall, and a spring plate retaining groove extending forwardly from the compression spring retaining groove. The trigger guard is connected to and is disposed between the handgrip portion and the upper frame portion.

## Claims

### Claim 1

A frame of a pistol, comprising:
a handgrip portion defining a magazine well which is configured for accommodating a magazine;
an upper frame portion extending along a front-rear direction and connected to a top end of said handgrip portion, said upper frame portion including a barrel-receiving section distal from said handgrip portion, said barrel-receiving section including a bottom wall, two sidewalls extending upwardly and respectively from two opposite ends of said bottom wall, two through slots respectively formed in said sidewalls for receiving two opposite ends of a slide lock of a slide mechanism of the pistol, a compression spring retaining groove formed in said bottom wall between said through slots, and a spring plate retaining groove extending forwardly from a top end of said compression spring retaining groove, said through slots extending in a top-bottom direction transverse to the front-rear direction for permitting upward and downward movement of the two ends of the slide lock therein; and
a trigger guard connected to and disposed between said handgrip portion and said upper frame portion, said trigger guard being located below said through slots.

### Claim 2 (depends on 1)

The frame of a pistol as claimed in claim 1, wherein the slide mechanism of the pistol includes one of a double-side slide stop lever and a single side slide stop lever, said double-side slide stop lever having two leg portions and a bight portion between the leg portions, the single side slide stop lever having one leg portion, said upper frame portion further including a slide stop lever-receiving section located rearwardly of said barrel-receiving section, said slide stop lever-receiving section including a front receiving section proximate to said barrel-receiving section for receiving the bight portion, and a rear receiving section extending rearwardly from said front receiving section opposite to said barrel-receiving section for receiving at least one of the leg portions.