Patents by Inventor Laurance E. Robbins

Laurance E. Robbins 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 operated firearm with clamp on gas block
    Patent number: 5945626
    Abstract: A firearm comprising a receiver, a barrel and a gas block. The barrel is connected to a front end of the receiver. The gas block is clamped onto the barrel. A gas tube extends between the receiver and the gas block, and the gas block includes a keyway which engages a key piece on the barrel.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: August 31, 1999
    Assignee: Colt's Manufacturing Company Inc.
    Inventor: Laurance E. Robbins
  • Four position firearm fire control selector
    Patent number: 5760328
    Abstract: A firearm with a trigger, a hammer, an automatic sear, and a selector switch connected to a rotatable firing control cam for selecting among types of firing selections of the firearm. The types of firing selections include safe, semi-automatic, limited automatic burst, and fully automatic. The control cam has a section with a general cross-sectional mushroom shape that is contacted by a leg from the automatic sear. The leg has a bend and extends under a center of the control cam in at least two positions of the control cam.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: June 2, 1998
    Assignee: Colt's Manufacturing Company, Inc.
    Inventor: Laurance E. Robbins