John A Pliska

Address:

58 East St, Hadley, MA 01035

Phone:

4135879912

VIN:

1FTPW14588FC03705

Make:

FORD

Model:

F-150

Year:

2008

US Patent:

7866077, Jan 11, 2011

Filed:

Jan 9, 2008

Appl. No.:

11/971486

Inventors:

Robert L. Constant - Westfield MA, US
John Pliska - Hadley MA, US
Richard A. Picard - Ludlow MA, US

Assignee:

Smith & Wesson Corp. - Springfield MA

International Classification:

F41A 19/57

US Classification:

42 6902, 89 2711

Abstract:

A striker assembly for a firearm and a method of assembly the striker assembly is disclosed. The striker assembly includes a generally cylindrical body having a first distal end, a middle portion, and a second distal end. A coaxial spring encompasses the middle portion of the body and abuts an annular ring on the first distal end. The striker assembly also has a spacer having a first side and a second side with the first side of the spacer abutting a ridge on the second distal end of the body. A snap ring holds the spacer in place on the spacer's second side, and the snap ring is secured by a circumferential groove in the second distal end of the body. Finally, the striker assembly includes a cap that abuts the coaxial spring and encompasses the second distal end of the body, the spacer, and the snap ring.

US Patent:

8122634, Feb 28, 2012

Filed:

Dec 3, 2010

Appl. No.:

12/959766

Inventors:

Robert L. Constant - Westfield MA, US
John Pliska - Hadley MA, US
Richard Picard - Ludlow MA, US

Assignee:

Smith & Wesson Corp. - Springfield MA

International Classification:

F41A 19/13

US Classification:

42 6902

Abstract:

A striker assembly for a firearm and a method of assembly the striker assembly is disclosed. The method includes providing a generally cylindrical body having a first distal end, a middle portion, and a second distal end, sliding a coaxial spring onto the middle portion from the second distal end toward the first distal end, sliding a spacer having a first side and a second side from the second distal end toward the first distal end, sliding a snap ring from the second distal end toward the first distal end, and sliding a cap over the second distal end of the body, the spacer, and the snap ring.

US Patent:

20100281733, Nov 11, 2010

Filed:

Jan 10, 2008

Appl. No.:

11/972018

Inventors:

ROBERT L. CONSTANT - Westfield MA, US
RICHARD A. PICARD - Ludlow MA, US
JOHN PLISKA - Hadley MA, US

Assignee:

SMITH & WESSON CORP. - Springfield MA

International Classification:

F41A 3/12
F41G 1/387
F41A 21/00
B23P 11/00

US Classification:

42 16, 42124, 42 7502, 29428

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.

US Patent:

20120030981, Feb 9, 2012

Filed:

Oct 17, 2011

Appl. No.:

13/274887

Inventors:

Robert L. Constant - Westfield MA, US
Richard A. Picard - Ludlow MA, US
John Pliska - Hadley MA, US

Assignee:

SMITH & WESSON CORP. - Springfield MA

International Classification:

F41A 3/12
F41A 21/00
B23P 11/00
F41G 1/387

US Classification:

42 16, 42124, 42 7502, 29428

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.

US Patent:

63084481, Oct 30, 2001

Filed:

Apr 30, 1999

Appl. No.:

9/303210

Inventors:

John Kapusta - Belchertown MA
John Pliska - Granby MA

Assignee:

Smith & Wesson Corporation - Springfield MA

International Classification:

F41A 300

US Classification:

42 6902

Abstract:

An interlocked firing mechanism for a gun includes a trigger, a sear and a firing pin having a depending leg, wherein the firing pin is movable in a rectilinear manner along a firing axis. The depending leg of the firing pin is adapted to have a contact surface, while the sear is adapted to have a control surface in mating engagement with the contact surface at a time prior to firing of the gun. The contact surface and the control surface of the interlocked firing mechanism of the present invention are further adapted to have parallel surfaces which mate with one another along a mating axis, defining an edge of a mating plane, which is set at a predetermined angle from a line perpendicular to the firing axis.

US Patent:

20150247689, Sep 3, 2015

Filed:

Jul 21, 2014

Appl. No.:

14/336092

Inventors:

- Springfield MA, US
Richard A. Picard - Ludlow MA, US
John Pliska - Hadley MA, US

International Classification:

F41A 3/66
F41A 3/12

Abstract:

A receiver assembly includes a bolt, a receiver having a threaded portion receiving a barrel, a barrel having a threaded portion engaged with the threaded portion of the receiver, and a crush washer positioned over the threaded portions between the barrel and the receiver to permit adjustment of the barrel relative to the receiver to achieve a proper headspacing.