Patents by Inventor Fritz Lutchemeier

Fritz Lutchemeier 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: 3998471
    Abstract: A trailer hitch assembly for attaching the tongue of a trailer mower or the like to the drawbar of a tow vehicle, such as a tractor. The assembly includes a first clevis attached to the forward end of the tongue of the trailer for 360.degree. relative rotation therewith. The attachment is by means of a first pin extending generally horizontally and generally parallel with the line of travel of the tractor and mower to thereby accommodate roll type relative movement therebetween. The apparatus also includes a swivel member in the form of a double clevis, with one clevis thereof arranged for rotational attachment to the first clevis by means of a second pin extending generally horizontally and transverse to said line of travel to thereby accommodate pitch type relative movement therebetween. The other clevis of said swivel member is arranged for rotational attachment to the drawworks by means of a generally vertically extending pin, to thereby accommodate yaw type relative movement therebetween.
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: December 21, 1976
    Assignee: Terrain King Corporation
    Inventor: Fritz Lutchemeier