Patents by Inventor Ernest R. Sternberg

Ernest R. Sternberg 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).

  • Highway vehicle with hydraulically driven power dolly
    Patent number: 4082157
    Abstract: An over-the-highway tractor-trailer vehicle including a tractor coupled in towing relationship to a forward trailer, and a dolly for towing a rearward trailer behind the forward trailer. The dolly has a hydraulically driven power unit. A hydraulic pump is driven by the tractor engine, and connects with a first set of flexible hydraulic hoses. A hydraulic motor is provided to drive the dolly, and connects with a second set of flexible hydraulic hoses. The sets of hoses releasably connect with conduits carried under the bed of the forward trailer. When the tractor is "dead headed" without a trailer or towing only one trailer, the sets of hoses are directly coupled so as to power the dolly drive.
    Type: Grant
    Filed: December 17, 1973
    Date of Patent: April 4, 1978
    Assignee: White Motor Corporation
    Inventor: Ernest R. Sternberg