Patents by Inventor Robert G. Wicks

Robert G. Wicks 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).

  • Gate control apparatus for refrigerated cargo container
    Patent number: 4763487
    Abstract: A refrigerated mobile cargo container having side and rear platforms for loading and unloading cargo and hydraulic control valves for regulating the raising and lowering of the platforms. Fluid to the control valves can be supplied from either a primary pump system powered by the refrigeration unit prime mover or by a secondary pump system powered by a twelve volt power supply. Each pump system has its own fluid reservoir. Check valves are provided which prevent the fluid from one pump system from being passed into the other pump system.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: August 16, 1988
    Assignee: Ralph W. Earl Company, Inc.
    Inventor: Robert G. Wicks