Patents Assigned to Grant Manufacturing Corporation
  • Fluid pump
    Patent number: 5193986
    Abstract: A fluid pump is provided which comprises a valveless pump chamber, a tube for conveying fluid, a conduit connecting the pump chamber and tube in fluid pressure communication, and at least one valve connected to the tube and adapted to permit a flow of fluid therethrough substantially in a single direction. Preferably at least the tube is removable and replaceable from the pump chamber. Preferably also, the tube is substantially rigid and includes a second valve at an opposite side of the conduit from the first valve.
    Type: Grant
    Filed: January 6, 1992
    Date of Patent: March 16, 1993
    Assignee: Grant Manufacturing Corporation
    Inventors: Benton H. Grant, Robert R. Stein