Patents by Inventor Erwin Epp

Erwin Epp 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: 8220192
    Abstract: Firing assemblies for use with firearms are described. A firing assembly for use with a firearm includes a hammer pivotably coupled to a hammer shaft. The hammer includes a hammer stop notch that at least partially engages a portion of a lever of a trigger assembly when the hammer is in a cocked position and a control curve section that engages a surface of the lever to retain the lever in an unlocked position as the hammer moves between the cocked position and a firing position. Additionally, the firing assembly includes a control element pivotably coupled to the hammer shaft and adjacent the hammer, wherein the control element includes a first control curve portion that at least partially adjoins the control curve section and wherein the hammer interacts with the control element to change a control curve region as the hammer moves between cocked position and the firing position.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 17, 2012
    Assignee: Heckler & Koch GmbH
    Inventors: Norbert Fluhr, Hermann Albrecht, Wolfgang Bantle, Johann-August Bantle, Erwin Epp
  • Publication number: 20100037502
    Abstract: Firing assemblies for use with firearms are described. A firing assembly for use with a firearm includes a hammer pivotably coupled to a hammer shaft. The hammer includes a hammer stop notch that at least partially engages a portion of a lever of a trigger assembly when the hammer is in a cocked position and a control curve section that engages a surface of the lever to retain the lever in an unlocked position as the hammer moves between the cocked position and a firing position. Additionally, the firing assembly includes a control element pivotably coupled to the hammer shaft and adjacent the hammer, wherein the control element includes a first control curve portion that at least partially adjoins the control curve section and wherein the hammer interacts with the control element to change a control curve region as the hammer moves between cocked position and the firing position.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 18, 2010
    Inventors: Norbert Fluhr, Hermann Albrecht, Wolfgang Bantle, Johann-August Bantle, Erwin Epp
  • Patent number: 5568696
    Abstract: This invention relates to a magazine for a repeater firearm, preferably for an automatic pistol which, while approximately preserving its external dimensions, is modified so that the usable capacity inside the magazine is reduced. In one refinement, the invention relates to a magazine with a magazine tube (1), a magazine spring (4), a feeder (7) and a magazine base (2). To reduce the usable capacity of the magazine, a spacer (6) is attached to the magazine base (2) facing the magazine spring (4). The magazine spring (4) is also shortened so that, in the absence of the spacer (6), it does not exert sufficient force on the feeder (7) to reliably advance the last cartridges (9) to the magazine lips on the end of the magazine tube (1). In addition to or instead of the features described above, the spacer (6) can be designed so that in its absence, and if the magazine is filled with bullets, the magazine base is partly or completely detached from its mounting on the other end of the magazine tube (1).
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: October 29, 1996
    Assignee: Heckler & Koch GmbH
    Inventors: Ernst Mauch, Helmut Weldle, Johannes-August Bantle, Erwin Epp