Patents by Inventor John Pliska

John Pliska has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9163889
    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.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: October 20, 2015
    Assignee: Smith & Wesson Corp.
    Inventors: Robert L. Constant, Richard A. Picard, John Pliska
  • Patent number: 9151553
    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.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: October 6, 2015
    Assignee: Smith & Wesson Corp.
    Inventors: Robert L. Constant, Richard A. Picard, John Pliska
  • Publication number: 20150247689
    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.
    Type: Application
    Filed: July 21, 2014
    Publication date: September 3, 2015
    Inventors: Robert L. Constant, Richard A. Picard, John Pliska
  • Patent number: 8782939
    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.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: July 22, 2014
    Assignee: Smith & Wesson Corp.
    Inventors: Robert L. Constant, Richard A. Picard, John Pliska
  • Patent number: 8122634
    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.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: February 28, 2012
    Assignee: Smith & Wesson Corp.
    Inventors: Robert L. Constant, John Pliska, Richard Picard
  • Publication number: 20120030981
    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.
    Type: Application
    Filed: October 17, 2011
    Publication date: February 9, 2012
    Applicant: SMITH & WESSON CORP.
    Inventors: Robert L. Constant, Richard A. Picard, John Pliska
  • Publication number: 20110067222
    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.
    Type: Application
    Filed: December 3, 2010
    Publication date: March 24, 2011
    Applicant: SMITH & WESSON CORP.
    Inventors: ROBERT L. CONSTANT, JOHN PLISKA, RICHARD PICARD
  • Patent number: 7866077
    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.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: January 11, 2011
    Assignee: Smith & Wesson Corp.
    Inventors: Robert L. Constant, John Pliska, Richard A. Picard
  • Publication number: 20100281738
    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.
    Type: Application
    Filed: January 9, 2008
    Publication date: November 11, 2010
    Applicant: SMITH & WESSON CORP.
    Inventors: ROBERT L. CONSTANT, JOHN PLISKA, RICHARD PICARD
  • Publication number: 20100281733
    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.
    Type: Application
    Filed: January 10, 2008
    Publication date: November 11, 2010
    Applicant: SMITH & WESSON CORP.
    Inventors: ROBERT L. CONSTANT, RICHARD A. PICARD, JOHN PLISKA
  • Patent number: 6308448
    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.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: October 30, 2001
    Assignee: Smith & Wesson Corporation
    Inventors: John Kapusta, John Pliska