Patents by Inventor Carl F. Liedke

Carl F. Liedke 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).

  • Gas-sealing means for tubular magazine gas-operated firearm
    Patent number: 4174654
    Abstract: A gas-sealing device for gas-operated firearms of the tubular-magazine type in which a pair of radially flexible piston-rings are provided for sealing the gases within the annular chamber between the gas cylinder and the magazine tube. Each piston-ring is provided with a gas-impingement surface so disposed that the pressure of the gases in the gas chamber against such impingement surfaces forces one of the rings outward into sealing engagement with the walls of the cylinder and the other inward into sealing engagement with the magazine tube.
    Type: Grant
    Filed: May 25, 1977
    Date of Patent: November 20, 1979
    Assignee: O. F. Mossberg & Sons, Inc.
    Inventor: Carl F. Liedke
  • Autoloading gas-operated firearm
    Patent number: 4102242
    Abstract: A gas-power system for an autoloading shotgun in which a pair of gas cylinders are mounted on opposite sides of and between the barrel and the magazine tube. An inertial weight is slidably mounted on the magazine for engagement by the pistons, which are positively retained within their cylinders for limited movement when a shell is discharged. The inertial weight is connected to the bolt-mechanism by a pair of action bars.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: July 25, 1978
    Assignee: O. F. Mossberg & Sons, Inc.
    Inventor: Carl F. Liedke
  • Sear-disconnector for firearms
    Patent number: 4017996
    Abstract: A disconnector for the trigger mechanism of a repeating firearm, in which the trigger must be disconnected from the sear during the reloading cycle so that the sear can re-engage and cock the firing member even though the trigger is still retracted when the reloading cycle is complete. The disconnector is directly engaged by a portion of the reciprocating breech-bolt mechanism in order to disconnect the sear, rendering the trigger inoperative until it is released by the shooter.
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: April 19, 1977
    Assignee: O. F. Mossberg & Sons, Inc.
    Inventor: Carl F. Liedke