IP Library Granted Patent US 9,151,553
Granted Patent B2
US 9,151,553 · App. 11/972,018 · Granted Oct 6, 2015

Bolt action firearm and its method of assembly

Inventors: Robert L. Constant (Westfield, MA); Richard A. Picard (Ludlow, MA); John Pliska (Hadley, MA)
Assignee: Smith & Wesson Corp.
F41A3/22F41A21/482F41G11/003Y10T29/49826
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Quick Facts
Patent No.
US 9,151,553
App. No.
11/972,018
Granted
Oct 6, 2015
Kind
B2
Abstract

Several improvements to the components and assembly method of a bolt-action firearm are disclosed. An improved bolt includes two separate members, which makes the bolt less expensive to manufacture while having a stronger extension handle. An improved takedown system and buttonless stop provide two easy ways to remove a bolt from a receiver when desired without misplacing any parts. An improved scope mount has a base connected to a receiver with two ends that substantially cover the top surface of the receiver and a middle portion that is narrowed over an opening to the receiver to accommodate a cartridge. A method of assembling a firearm involves providing a barrel with a threaded portion, fitting a crush washer over the threaded portion, inserting the threaded portion into a corresponding threaded portion of a receiver, and adjusting the barrel about the crush washer until a proper headspace is achieved.

Claims (18)

1. A bolt for a bolt-action firearm, comprising:

a main body with a bolt front end, an opposing end, and an outer surface, said main body having an interior flange at said opposing end that is recessed from said outer surface of said main body and stands proud from said opposing end;

a supplemental body joined to said main body by a joint formed by partial liquefaction of a substantial portion between said interior flange and a corresponding recess on said supplemental body; and

a bolt handle being integrally formed with and extending outwardly from said supplemental body.

2. The bolt of claim 1 , wherein said partially liquefied joint is formed by brazing.

3. The bolt of claim 1 , wherein said partially liquefied joint covers a substantial portion of the full circumference of said bolt.

4. A bolt-action firearm, comprising:

a stock;

a receiver mounted in said stock;

a trigger assembly mounted in said receiver;

a barrel located at a forward end of said receiver;

a bolt enclosed within said receiver and adapted to travel forward and rearward within said receiver; and

wherein said bolt includes:

a main body with a bolt front end, an opposing end, and an outer surface, said main body having an interior flange at said opposing end that is recessed from said outer surface of said main body and stands proud from said opposing end;

a supplemental body joined to said main body by a joint formed by partial liquefaction of a substantial portion between said interior flange and a corresponding recess on said supplemental body; and

a bolt handle being integrally formed with and extending outwardly from said supplemental body.

5. The bolt-action firearm of claim 4 , wherein said partially liquefied joint is formed by brazing.

6. The bolt-action firearm of claim 4 , wherein said partially liquefied joint covers a substantial portion of the full circumference of said bolt.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 23, 2008
From: CONSTANT, ROBERT L.; PICARD, RICHARD A.; PLISKA, JOHN
To: SMITH & WESSON CORP.
Reel/Frame 020402/0387 →
Continuity (4)
Provisional Application 60884246 · Jan 10, 2007
Provisional Application 60884268 · Jan 10, 2007
Provisional Application 60908488 · Mar 28, 2007
Related Publication 20100281733A1 · Nov 11, 2010