Patents by Inventor Dieter Keppeler

Dieter Keppeler 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: 5992075
    Abstract: Repeating gun having an actuating arrangement which is mounted so as to be axially displaceable and which can be connected to a movable breech mechanism, which is guided likewise in an axial manner, for opening and closing the cartridge chamber, and can be locked by way of safety means, wherein the actuating arrangement is formed as an axially movable pistol grip (2) having a trigger guard (6), which frames a stationarily mounted trigger (5), and is connected to the breech mechanism (1) by way of two guide bars which are formed as L-shaped strips (3) and which slide in grooves on both sides of the axis of the barrel and are anchored with their shorter ends on the breech mechanism (1) as well as with their longer ends on the pistol grip (2) or the trigger guard (6) respectively, and in that the safety means comprise a spring-loaded press button (7) which is provided on the rear projection of the pistol grip (2) and by way of which the repeating unit is locked in the closed position of the breech mechanism and
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: November 30, 1999
    Assignee: Sommer & Ockenfuss GmbH
    Inventors: Ulrich Ockenfuss, Dieter Keppeler
  • Patent number: 4134223
    Abstract: A hand firearm has a breech block pivotally mounted in the frame so as to be pivotable downwardly from a closed position to a loading position. The breech block has a firing pin mounted therein which is actuated by an armature of an electro-magnet also disposed in the breech block. A source of electrical energy in the form of a removable unit is disposed in the frame and connected electrically to the coil. This electrical connection to the coil is disconnected when the breech block is pivoted downwardly into its loading position so that the electro-magnet can not be energized and thus actuation of the firing pin is prevented.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: January 16, 1979
    Assignee: Carl Walther GmbH
    Inventors: Siegfried Hillenbrandt, Dieter Keppeler
  • Patent number: 4028836
    Abstract: A small firearm such as a pistol has a pivotally mounted hammer engagable with a firing pin. A trigger rod is pivotally connected to a trigger and is spring biased upwardly toward the hammer so that a notch on the trigger rod is engagable with a roller on the hammer. The notch is urged into temporary engagement with the roller during cocking of the hammer and a pin on the hammer pushes the trigger rod downwardly to disengage the notch from the roller during cocking.
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: June 14, 1977
    Assignee: Carl Walther, Sportwaffenfabrik
    Inventor: Dieter Keppeler
  • Patent number: 3945142
    Abstract: A front or rear sight is mounted on a barrel of a firearm by an open ring positioned around the barrel and having spaced ends upon which is mounted a fastening element. A nut is retained on the upper surface of the fastening element and a mount for a sight is positioned over the nut and fastening element. A screw passes through the mount to be threaded into the nut so that tightening of the screw will draw the fastening element and nut upwardly to tighten the ring around the barrel.
    Type: Grant
    Filed: August 2, 1974
    Date of Patent: March 23, 1976
    Assignee: Carl Walther, Sportwaffenfabrik
    Inventor: Dieter Keppeler