US 12,345,491 B2
Diverging central bore for firearm sound suppressor
Barry William Dueck, Fountain Valley, CA (US); Michael Scott Standen, Fountain Valley, CA (US); Eric Hung Leung Chow, Fountain Valley, CA (US); Ryan Steven Glasby, Fountain Valley, CA (US); and Doug Lawrence Stefanski, Fountain valley, CA (US)
Assigned to SureFire, LLC, Fountain Valley, CA (US)
Filed by SureFire, LLC, Fountain Valley, CA (US)
Filed on Nov. 18, 2022, as Appl. No. 17/990,593.
Application 17/990,593 is a continuation in part of application No. 17/882,430, filed on Aug. 5, 2022.
Claims priority of provisional application 63/230,515, filed on Aug. 6, 2021.
Prior Publication US 2023/0288162 A1, Sep. 14, 2023
Int. Cl. F41A 21/30 (2006.01)
CPC F41A 21/30 (2013.01) 7 Claims
OG exemplary drawing
 
1. A front plate for a suppressor for coupling with a muzzle end of a barrel of a firearm for reducing muzzle blast and eliminating muzzle flash, the front plate comprising:
a central bore disposed between a back surface and a front surface of the front plate;
a converging portion of the central bore extending from the back surface wherein the converging portion extends from a backmost surface of the front plate and meets a diverging portion within an interior of the central bore wherein the backmost surface is disposed proximal of the back surface by an offset distance; and
the diverging portion of the central bore opening toward the front surface wherein the front surface encloses the central bore;
a recess disposed away from the central bore and between an outer lip and the central bore.