Patents by Inventor R. H. Gault

R. H. Gault 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).

  • Air balance control for a pumping unit
    Patent number: 5180289
    Abstract: An air-balance control system for a pumping unit minimizes the difference in torque on pumping unit components on the upstroke and the downstroke. The control system measures pump motor current and rod string position to effectuate porting air to or venting air from the air receiver tank in an air-balance system.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: January 19, 1993
    Assignee: Baker Hughes Incorporated
    Inventors: Bruce Wenholz, R. H. Gault, Kerry A. Jones