Patents by Inventor John G. Kirsch

John G. Kirsch 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: 4178011
    Abstract: This is a unique tapered fit coupling arrangement for coupling a load to a power means, such as a trailer to a self propelled vehicle, wherein movement is allowed in all directions for coupling to allow for ease of hook-up, and wherein the device is characterized by a tapered female member with a corresponding tapered male member which can be inserted and drawn into firm and complete tapered fit to completely engage the power means and the load in a safe and compact relationship.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: December 11, 1979
    Inventor: John G. Kirsch