Patents by Inventor James Campbell Melville

James Campbell Melville 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).

  • Fluid pump
    Patent number: 4116588
    Abstract: A fluid pump includes a housing in which is defined a bore. A pump assembly is mounted within the bore a pump assembly including a drive shaft extending through an aperture in an end wall serving to close one end of the bore, the other end of the bore being closed by an end closure. The pump assembly comprises three stator portions and disposed in end to end relationship with each end stator portion and the center stator portion being separated by components of two stages of the pump.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: September 26, 1978
    Assignee: Lucas Industries Limited
    Inventors: Ronald Phillips, James Campbell Melville