Patents by Inventor Rick L. Koster

Rick L. Koster 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: 5346018
    Abstract: An inventive three-point hitch assembly that attaches to the front end of a truck or pickup and supports at three points a plurality of implements or tools. It has a belt-driven power take-off for rotary tools that is controlled by an electric clutch and driven by a pulley attached below the truck engine pulley. A hydraulic lift cylinder raises and lowers the hitch and implement or tool, which by the hitch parallelogram form maintains the implements in a vertical orientation. The lift cylinder hydraulic pressure is supplied by connections to the truck power steering system via electrically controlled solenoid valves.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: September 13, 1994
    Inventor: Rick L. Koster