Patents by Inventor Robert Knopfle

Robert Knopfle 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).

  • Methods and apparatus to lock a dust cover in a firearm housing
    Patent number: 7181881
    Abstract: Methods and apparatus to lock a dust cover in a firearm housing are disclosed. An example firearm disclosed herein comprises a housing constructed substantially from non-magnetic material and defining an opening; a dust cover to cover the opening in the housing, the dust cover being pivotable between an open position and a closed position; and a magnetic lock to secure the dust cover in the closed position.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: February 27, 2007
    Assignee: Heckler & Koch, GmbH
    Inventors: Wilhelm Fischbach, Robert Knöpfle
  • Methods and apparatus to lock a dust cover in a firearm housing
    Publication number: 20050016051
    Abstract: Methods and apparatus to lock a dust cover in a firearm housing are disclosed. An example firearm disclosed herein comprises a housing constructed substantially from non-magnetic material and defining an opening; a dust cover to cover the opening in the housing, the dust cover being pivotable between an open position and a closed position; and a magnetic lock to secure the dust cover in the closed position.
    Type: Application
    Filed: December 5, 2003
    Publication date: January 27, 2005
    Inventors: Wilhelm Fischbach, Robert Knopfle
  • Hammer for a portable firearm
    Patent number: 6070353
    Abstract: A hammer for a portable firearm, such as automatic pistol, which hammer is at least partially exposed and has a hammer piece (1), arranged for firing a bullet cartridge by striking action and an end piece (2) extending a given distance for facilitating grasping of the hammer piece and preferably connected to the hammer piece (1) in a flexible manner, where either the end piece (2), extends a given distance on the hammer piece (1), is mounted via a flexible connection, or the end piece (2) is made of a flexible material.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: June 6, 2000
    Assignee: Heckler & Koch GmbH
    Inventors: Hermann Albrecht, Hans Peter Bantle, Robert Knopfle, Helmut Weldle
  • Pistol
    Patent number: D464702
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: October 22, 2002
    Assignee: Heckler & Koch GmbH
    Inventors: Ernst Mauch, Hans-Peter Bantle, Helmut Weldle, Robert Knöpfle, Norbert Fluhr, Gerd Spinner