Sep 2, 2025

US12405073 - Hand firearm

A self-loading hand firearm with a barrel secured to a frame, a firing pin, a slide, and a closure which is held, in the front position of the slide, in a locking position on the frame and which is moved from the locking position into a release position by gas pressure of a fired projectile. The closure is formed at least in two parts with a closure locking mechanism, which has two lateral legs, and a closure impact base lying between the legs, the closure locking mechanism being provided at the legs with at least one protruding driver element, which engages in a recess of the slide, and with at least one retaining cam, which engages in a shoulder of the frame. The closure impact base and the closure locking mechanism are hinged to one another.

handgunself-loadingfirearm

The patent describes a self-loading handgun featuring a barrel fixed to a frame, a firing pin, and a slide that operates with a two-part breech locking mechanism. This mechanism utilizes gas pressure from a fired projectile to transition the breech from a locked to an unlocked position, allowing for the slide’s rearward movement and subsequent return under spring force.

Claim 1

  1. A self-loading handgun with a barrel immovably secured to a frame, a firing pin, a slide guided linearly vis-à-vis the frame, and a breech which is held in a locked position on the frame in a forward position of the slide and which is moved from the locked position into an unlocked position upon a backward movement of the slide effected by a gas pressure from a fired projectile and moved together with the slide into a rear position from which the slide together with the breech is returned to the forward position under a spring force, wherein: the breech is of at least a two-part design comprising a breech locking mechanism with two lateral limbs and a breech face disposed between the limbs, wherein the breech locking mechanism on the limbs is provided with at least one protruding driving element which engages in a recess of the slide, and with at least one retaining cam engaging in a shoulder of the frame, the breech face and the breech locking mechanism are articulated together and the breech face incorporates an axial bore aligned with the barrel for the passage of the firing pin, and the breech face is coaxially guided to the barrel upon the backward movement and a forward movement of the slide. the breech is of at least a two-part design comprising a breech locking mechanism with two lateral limbs and a breech face disposed between the limbs, wherein the breech locking mechanism on the limbs is provided with at least one protruding driving element which engages in a recess of the slide, and with at least one retaining cam engaging in a shoulder of the frame, the breech face and the breech locking mechanism are articulated together and the breech face incorporates an axial bore aligned with the barrel for the passage of the firing pin, and the breech face is coaxially guided to the barrel upon the backward movement and a forward movement of the slide.

Google Patents

https://patents.google.com/patent/US12405073

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12405073

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