Patents by Inventor Marvin S. Sill

Marvin S. Sill 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).

  • Vehicle lift device for tow trucks
    Patent number: 4557496
    Abstract: A vehicle lift device which may be easily attached to an ordinary truck for use in towing disabled vehicles. The lift device includes a frame which is secured to the truck, a telescoping beam pivotally mounted adjacent one end to the framework, and piston means secured between the framework and the beam one end for shifting the beam between a raised and lowered position. A crossbar is mounted at the other end of the beam and includes grids mounted thereon for receiving the wheels of the disabled vehicle.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: December 10, 1985
    Inventor: Marvin S. Sill