May 27, 2025

US12313361 - Muzzle mount assembly

A mount assembly for attaching a firearm accessory to a muzzle of a firearm that promotes a more secure connection. The mounting assembly includes a front collar and a rear collar that are operable to clamp the mount assembly onto the muzzle. A detent ring mounted on the front collar yieldably biased by a spring against the rear collar to resist relative rotation of the front and rear collars. The mounting assembly is constructed so that the spring force applied by the spring does not continually increase as the front and rear collars move to clamp onto the muzzle. Detent springs used to yieldably hold the front and rear collars against relative rotation can be weaker than the main spring, which further reduces unwanted forces working against clamping of the mount assembly onto the muzzle. The mount assembly is also constructed to inhibit carbon lock.

Assignee: Smith & Wesson Inc.
Inventors: Joseph DeJessa
Filing date: 2023-08-04

firearmaccessorymountmuzzle

The patent describes a muzzle mount assembly designed to securely attach firearm accessories while minimizing unwanted rotational forces during clamping. It features a unique spring mechanism that reduces the spring force as the front and rear collars move closer together, preventing carbon lock and ensuring a stable connection.

Claim 1

A mount assembly for attaching a firearm accessory to a muzzle of a firearm, the mount assembly comprising: a rear collar configured to connect to the muzzle; a front collar coupled to the rear collar for movement relative to the rear collar, the front collar and rear collar being constructed and arranged relative to each other to capture a portion of the muzzle between them to attach the mount assembly to the muzzle; a detent ring movable relative to the rear collar; and a spring disposed between the detent ring and the front collar and generating a spring force biasing the detent ring toward the rear collar; wherein the rear collar, the front collar, and the detent ring are shaped so that an amount of the spring force biasing the detent ring toward the rear collar decreases during at least a portion of a time the distance between the front collar and the rear collar decreases while attaching the mount assembly to the muzzle. a rear collar configured to connect to the muzzle; a front collar coupled to the rear collar for movement relative to the rear collar, the front collar and rear collar being constructed and arranged relative to each other to capture a portion of the muzzle between them to attach the mount assembly to the muzzle; a detent ring movable relative to the rear collar; and a spring disposed between the detent ring and the front collar and generating a spring force biasing the detent ring toward the rear collar; wherein the rear collar, the front collar, and the detent ring are shaped so that an amount of the spring force biasing the detent ring toward the rear collar decreases during at least a portion of a time the distance between the front collar and the rear collar decreases while attaching the mount assembly to the muzzle.

Google Patents

https://patents.google.com/patent/US12313361

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12313361