Patents by Inventor William R. H. Orchard

William R. H. Orchard 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).

  • Apparatus for controlling the flow of a fluid
    Patent number: 4560323
    Abstract: An apparatus for controlling flow of a fluid having two speed-controlled positive displacement devices for supplying a load with fluid under pressure from a supply at a different pressure with interposed variable-volume buffer containers.
    Type: Grant
    Filed: January 13, 1982
    Date of Patent: December 24, 1985
    Inventor: William R. H. Orchard