Patents by Inventor Joe G. Schoolcraft

Joe G. Schoolcraft 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: 4658933
    Abstract: A universal adaptor is attached to the top end of a hydraulic ram of a vertical hoist for accomodating the lifting of motor vehicles for servicing. The adaptor has retractable traction pads at either end of an elongated support platform which engage the lower shock absorber tower mounts on opposing sides of the underside of the vehicle. The adaptor also includes axle lift cradles which may be engaged to support a vehicle by its rear axle or may be disengaged when their use is not feasible, such as lifting vehicles having independent rear wheel suspension systems. The retractable pads are retained in discrete positions by a latching mechanism, being adjustable to accommodate a variety of vehicular undersides of differing lateral dimensions.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: April 21, 1987
    Assignee: Knowles Chemical Corporation
    Inventors: Thomas L. Cheek, Joe G. Schoolcraft