Patents by Inventor Michael B. Bietsch

Michael B. Bietsch 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).

  • Publication number: 20130205635
    Abstract: A Glock firearm handgrip is modified to accept a removable ergonomic insert that changes the palm relief of the firearm. A portion of the rounded rear wall of the grip is cut away along a plane parallel to the back plate of the magazine to create a well for the introduction of the insert. The rear surface of the back plate and the converging interior surfaces of the rear wall are used as butting surfaces to hold in place the insert. A prong with a distal latch in the insert is provided for engagement with a transverse pin passed through the sidewalls of the grip. The insert is also preferably equipped with two wings adapted to engage the beveled lower edge of the magazine's back plate. Several inserts with different profiles are provided to a user to select the most comfortable and/or appropriate for him or her.
    Type: Application
    Filed: August 14, 2012
    Publication date: August 15, 2013
    Inventors: Steve HINES, Michael B. BIETSCH
  • Patent number: 8397422
    Abstract: A device for adjusting a gun sight disposed in a dovetail groove on a gun slide is presented. The device includes a pushing member and a pressure plate both moveable in a first direction and an opposing second direction. The device further comprises a bracing member opposing the pressure plate, where the bracing member is stationary, and a seating member disposed between the pressure plate and bracing member, where the seating member opposes the pushing member, and where the seating member is movable in a third direction and an opposing fourth direction. When the gun slide is secured between the bracing member and the pressure plate, moving the pushing member adjusts the position of the gun sight.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: March 19, 2013
    Inventor: Michael B. Bietsch
  • Patent number: 8316573
    Abstract: A device for adjusting a gun sight disposed in a dovetail groove on a gun slide is presented. The device includes a pushing member having a protrusion and an opening formed for receiving the gun sight therethrough, where the pushing member is movable in a first direction. The device further includes a pressure plate moveable in the first direction and a tail assembly opposing the pressure plate and movable in a second direction, where the tail assembly and the pressure plate are for securing the gun slide therebetween. When the gun slide is secured between the tail assembly and the pressure plate, moving the pushing member moves the gun sight.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: November 27, 2012
    Inventor: Michael B. Bietsch
  • Publication number: 20120055060
    Abstract: A firearm handgrip can be modified to accept an ergonomic insert that changes the palm relief of a firearm. The palm relief is the handgrip profile that a shooter feels against the palm of the hand when holding the firearm. The ergonomic insert can be releasable from the handgrip, perhaps by unpinning, such that other inserts can be inserted. As such, a person can try a variety of ergonomic inserts until the best insert for that particular person is determined. For certain semiautomatic pistols, cutting away a back portion of the handgrip produces the socket portion of a dovetail joint. An insert having a properly sized dovetail can slide into the socket and be held there. In this manner, a family of ergonomic inserts and a machining service can be offered to thereby provide firearms having interchangeable ergonomic inserts and thereby a customized and ergonomic grip.
    Type: Application
    Filed: September 8, 2010
    Publication date: March 8, 2012
    Inventors: Steve Hines, Michael B. Bietsch
  • Publication number: 20110252688
    Abstract: A device for adjusting a gun sight disposed in a dovetail groove on a gun slide is presented. The device includes a pushing member and a pressure plate both moveable in a first direction and an opposing second direction. The device further comprises a bracing member opposing the pressure plate, where the bracing member is stationary, and a seating member disposed between the pressure plate and bracing member, where the seating member opposes the pushing member, and where the seating member is movable in a third direction and an opposing fourth direction. When the gun slide is secured between the bracing member and the pressure plate, moving the pushing member adjusts the position of the gun sight.
    Type: Application
    Filed: April 22, 2011
    Publication date: October 20, 2011
    Inventor: Michael B. Bietsch
  • Publication number: 20110167702
    Abstract: A device for adjusting a gun sight disposed in a dovetail groove on a gun slide is presented. The device includes a pushing member having a protrusion and an opening formed for receiving the gun sight therethrough, where the pushing member is movable in a first direction. The device further includes a pressure plate moveable in the first direction and a tail assembly opposing the pressure plate and movable in a second direction, where the tail assembly and the pressure plate are for securing the gun slide therebetween. When the gun slide is secured between the tail assembly and the pressure plate, moving the pushing member moves the gun sight.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 14, 2011
    Inventor: MICHAEL B. BIETSCH
  • Patent number: D620547
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: July 27, 2010
    Inventor: Michael B. Bietsch
  • Patent number: D675698
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: February 5, 2013
    Inventor: Michael B. Bietsch
  • Patent number: D697163
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: January 7, 2014
    Inventor: Michael B. Bietsch