Patents by Inventor Rafael T. Gonzaga

Rafael T. Gonzaga 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).

  • Unitized portable hoist
    Patent number: 4850570
    Abstract: A unitized portable hoist having a base structure. A support structure is attached to the base structure. A hoist drum is rotatable attached to hydraulic motors which are in turn attached to the base structure. A crown block is attached to the base structure below the hoist drum. An electric motor drives a hydraulic pump, both of which are attached to the base structure. The hydraulic pump drives the hydraulic motors. A cable is taken up and let out by the hoist drum. A fall block rides on the cable.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: July 25, 1989
    Assignee: United States of America
    Inventors: Phil A. Cabanos, Rafael T. Gonzaga, Gordon E. Rado