Patents Examined by Charles T. Jordon
  • Adjustable gas pressure deflector
    Patent number: 5631438
    Abstract: A gas pressure deflector system mounted on the exterior of a muzzle brake for a firearm barrel. The gas pressure deflector system comprises two deflectors adjustably positioned along the longitudinal axis of the brake to bracket the muzzle brake vent apertures. The deflectors create a pressure equalizing trap serving to smooth out the pressure pulse differential occurring along the muzzle brake gas venting region when a bullet is fired, thereby enhancing bullet accuracy and reducing recoil.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: May 20, 1997
    Inventor: Phillip C. Martel
  • Grid-shaped spacer for a nuclear-reactor fuel assembly
    Patent number: 5539792
    Abstract: A grid-shaped spacer includes a sheet-metal web having a web aperture formed therein defining two spaced mutually opposite aperture edges. The aperture edges oppose an elongation of an elongate spring which is curved about a direction transverse to its own longitudinal direction and which has a tab that engages through the web aperture at each of two spring ends. At least one of the tabs is snapped into a notch formed in one of the spring edges opposing the elongation of the spring.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: July 23, 1996
    Assignee: Siemens Aktiengesellschaft
    Inventors: Martin-Benno Buttner, Otto Porzelt, Bernd Block, Dirk Blavius
  • Impact contact device for projectiles
    Patent number: 4036143
    Abstract: An impact contact for ignition tubes mounted on the nose of a projectile and consisting of two substantially rigid parts held together by mechanical fastening means which can yield due to lateral forces acting on the front part. Contact means are arranged at the place of interconnection between the two parts, which contact means are sensitive to a relative motion, in a lateral or axial direction, between the two parts for initiating a burst at a value of said relative motion exceeding a certain value.
    Type: Grant
    Filed: March 18, 1976
    Date of Patent: July 19, 1977
    Assignee: U.S. Philips Corporation
    Inventors: John Lennart Nordgren, Gunnar Gudmund Thordarson
  • Thumb trigger and automatic safety
    Patent number: 4010566
    Abstract: A thumb trigger and automatic safety are provided for firearms. The automatic safety may be adapted to the gun or stock and is operable by spring loaded means provided on an upper portion of the firearm. Operation of the spring loaded safety and push button is by pressure from the thumb.
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: March 8, 1977
    Inventor: Walter William Edwards