Patents by Inventor Wendell Baldwin

Wendell Baldwin 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).

  • Trailer-mounted portable oil change and lubricating system for motor vehicles
    Patent number: 4724875
    Abstract: A vehicle-servicing trailer is attachable to a pulling vehicle for transporation to the intended servicing site, the trailer having a hydraulically controlled lift apparatus, ramps on opposite sides of the trailer for advancement of a vehicle to be serviced onto the trailer, and outriggers are stationed at the four corners of the trailer to cooperate in supporting a vehicle on the trailer. When the vehicle is loaded on the trailer via the ramps, the lift is activated to raise the track members and vehicle to be serviced so that the underside of the vehicle is accessible, and outboard extensions on the track members enable a service man or operator to gain access to the engine compartment and interior of the vehicle. A movable dolly is positioned centrally of the trailer to permit the operator to slide beneath the vehicle and to perform necessary servicing operations, such as, oil changes and lubrication jobs.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: February 16, 1988
    Assignee: Porta-Lube, Inc.
    Inventors: Wendell Baldwin, Harley D. Longan, Dudley R. Seifert, Stanley A. Williams