Patents by Inventor Ernst K. Spieth

Ernst K. Spieth 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: 4195840
    Abstract: A target changer for use on a shooting range which after each actuation by an operator automatically removes a used target from a window in the target stand and brings a fresh target into the window. The target changer is designed to change individual targets which are not joined together. A supply magazine disposed above the window receives a stack of targets, and a first feed mechanism conveys the frontmost target of the stack to a vertical target guide disposed behind the window, while a second feed mechanism disposed at the lower end of the target guide conveys the used target from the target guide to a used target receiver. In some embodiments additional advancing rollers are arranged on both sides of the target guide to ensure a forced transport of the targets between the two feed mechanisms, whereby jamming is avoided.The target changer can be adapted to targets of different sizes by means of inserts which are inserted into the target window.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: April 1, 1980
    Assignee: Ernst K. Spieth
    Inventors: Ernst K. Spieth, Bernhard Murso, Eberhard Riedmuller