Patents by Inventor Robert L. Peeler

Robert L. Peeler 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).

  • Hydraulic fluid system with piston and vane pumps
    Patent number: 4622157
    Abstract: In a hydraulic system containing a piston-type and vane-type pump and wherein said piston-type pump contains wear surfaces containing copper or a copper alloy and the vane-type pump contains wear surfaces containing steel, the improvement comprising utilizing a common sump for the hydraulic fluid used in said piston and vane pumps, said hydraulic fluid composition comprising a major amount of an oil of lubricating viscosity and 0.1 to 2.5 weight percent of a zinc dithiophosphate and 0.01 to 5.0 weight percent of a sulfurized ester-olefin containing at least 13 weight percent sulfur.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: November 11, 1986
    Assignee: Chevron Research Company
    Inventor: Robert L. Peeler
  • Heat transfer fluids
    Patent number: 3958624
    Abstract: An improved anti-fouling additive for use in organic heat transfer fluids is disclosed. The additive comprises a combination of a barium overbased calcium sulfonate having a base ratio of at least 4 and a phenolic anti-oxidant.
    Type: Grant
    Filed: July 2, 1973
    Date of Patent: May 25, 1976
    Assignee: Chevron Research Company
    Inventors: Robert L. Peeler, John M. King