Patents by Inventor Kevin R. Langevin

Kevin R. Langevin 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: 5907918
    Abstract: A buttstock formed with a single piece of molded synthetic materials and contains two slots so that the rifle may be carried using a sling in multiple positions. The buttstock is designed to have the same size and occupy the same exterior envelop as a standard M-16 rifle buttstock but with far fewer parts and lower weight but without compromising strength. The buttstock comprises a buttplate, a shoulder, and a flange all held in spaced relationship with and integral with a panel. Two slots are formed in the panel near the buttstock, one parallel to the shoulder and the other parallel to the flange. Each slot is dimensioned to receive a sling.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: June 1, 1999
    Assignee: FN Manufacturing Inc.
    Inventors: Kevin R Langevin, Gary A Sniezak
  • Patent number: 5806225
    Abstract: A fire control system for a semiautomatic, double action only pistol includes a sear carried by a biased sear arm. As in other pistols, the sear engages a striker to load it against a striker spring until it is released to fire a chambered round. In the present invention, the sear arm is biased so that it urges the sear forward and upward, against the rearward movement of the sear as a result of the pulling of a trigger operating through a trigger arm, and restores the sear after release of the striker. The sear arm is biased by a spring system comprising two torsion springs. One torsion spring operates against the sear block to urge the sear arm in an upward direction; the other torsion spring, pivotally supporting the sear, operates on it to urge it forward. The sear and the striker lie in the same plane.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: September 15, 1998
    Assignee: FN Manufacturing Inc
    Inventors: Michael R. Gardner, Edward P. Schmitter, Gary A. Sniezak, Kevin R. Langevin, Jean-Pierre Y J L Reconnu
  • Patent number: 5640794
    Abstract: A fire control system for a semiautomatic, double-action only pistol includes a sear carried at the free end of a cantilevered spring. As in other pistols, the sear engages a striker to load it against a striker spring until it is released to fire a chambered round. In the present invention, the cantilevered spring urges the sear forward and upward, against the rearward movement of the sear as a result of the pulling of a trigger operating through a trigger arm, and restores the sear after release of the striker. The cantilevered spring is preferably a spring with a torsion spring on each end. One torsion spring operates against the frame to cantilever the spring body; the other torsion spring, supporting the sear, operates on it to urge it forward. The sear and the striker lay in the same plane.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: June 24, 1997
    Assignee: FN Manufacturing, Inc.
    Inventors: Michael R. Gardner, Edward P. Schmitter, Gary A. Sniezak, Kevin R. Langevin, Jean-Pierre Reconnu
  • Patent number: 5493806
    Abstract: A firearm with a frame, a slide, a striker, and a striker retaining system. The striker is connected to the frame inside the slide. The striker has a firing pin biased by a spring in a forward direction. The retaining system has a retainer pin and a spring. The retaining pin is mounted to the frame and is adapted to automatically engage the striker when the slide is removed from the frame. This prevents the striker from being inadvertently released as a projectile off of the frame when the slide is not mounted to the frame.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: February 27, 1996
    Assignee: Colt's Manufacturing Company Inc.
    Inventors: Kevin R. Langevin, Scott A. Ladd
  • Patent number: D405148
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: February 2, 1999
    Assignee: FN Manufacturing Inc.
    Inventors: Kevin R. Langevin, Gary A. Sniezak