Patents Assigned to Superior, Inc.
  • Variable stroke fluid lubricant dispenser
    Patent number: 4168787
    Abstract: A head assembly for a fluid lubricant dispenser including a piston cavity having inlet and outlet ports disposed near the bottom of the cavity. The inlet and outlet ports are controlled by check valves that function oppositely and simultaneously to allow the flow of lubricant in one direction. The location of the inlet port and the use of a check valve in conjunction with the inlet port allows for effective operation of the lubricant dispenser with any appreciable movement of the piston via the operative lever mechanism.
    Type: Grant
    Filed: November 18, 1977
    Date of Patent: September 25, 1979
    Assignee: Superior, Inc.
    Inventor: Eugene E. Stamper