Patents by Inventor Ray G. Schantz

Ray G. Schantz 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).

  • Spring loaded retractable wheel trailer
    Patent number: 5195764
    Abstract: A rectractable trailer having a spring loaded hydraulic piston is provided. The trailer has a bell crank connection for the axles to enable the trailer to be moved between a lowered loading position to an elevated traveling position. The hydraulic piston powers an operating train for raising and lowering the axles. In the operating train the hydraulic piston is pivotally connected to a forward end of a cradle or carriage slidable longitudinally upon a rail-like frame. A rear portion of the cradle is pivotally connected to a telescopic spring loaded operating rod which is pivotally connected at a rear end to an arm of the bell crank axle which is raised and lowered by the hydraulic piston and the operating train.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: March 23, 1993
    Inventors: Ray G. Schantz, Michael A. Schantz