US 11,054,204 B2
Trigger return spring mechanism
Brett Curry, Monson, MA (US)
Assigned to Smith & Wesson Inc., Springfield, MA (US)
Filed by Smith & Wesson Inc., Springfield, MA (US)
Filed on Oct. 1, 2020, as Appl. No. 17/60,327.
Claims priority of provisional application 62/910,516, filed on Oct. 4, 2019.
Prior Publication US 2021/0102771 A1, Apr. 8, 2021
Int. Cl. F41A 19/10 (2006.01); F41A 19/12 (2006.01)
CPC F41A 19/10 (2013.01) [F41A 19/12 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A trigger return spring assembly for a firearm comprising a frame, said trigger return spring assembly comprising:
a trigger mountable on said frame for pivoting motion about a first axis of rotation fixed on said frame;
a trigger bar attached to said trigger and pivotable relatively thereto about a second axis of rotation fixed on said trigger;
a bore extending through said trigger along a third axis oriented transversely to and positioned between said first and second axes of rotation;
a shoulder positioned within said bore proximate to said trigger bar;
a plunger extending through said bore and movable along said third axis, a first end of said plunger being attached to said trigger bar, a second end of said plunger comprising a retaining surface oriented transversely to said third axis; and
a compression spring captured within said bore between said shoulder and said retaining surface and exerting a force pushing said retaining surface away from said shoulder.