Patents Assigned to Dempco, Inc.
  • Patent number: 4009729
    Abstract: A hydraulic coupler having an intermediate valve which permits closing off flow from the inlet end to the outlet end, which permits quick coupling, and which provides for substantially leak proof, easy operation during uncoupling and coupling.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: March 1, 1977
    Assignee: Dempco, Inc.
    Inventor: Albam M. Vik