Patents Assigned to Paul M. Hankison
  • Tube coupler
    Patent number: 3976314
    Abstract: A coupler or fitting for connecting ductile tubes or pipes includes a coupler body having one or more ports therein, and a ferrule which is friction-fitted within each port, the ferrule having a radially-inward flaring lip for biting into and locking a tube inserted therein and for creating a seal between the tube and the body, and a radially-outward flaring lip for biting into and locking the ferrule within the body.
    Type: Grant
    Filed: January 3, 1975
    Date of Patent: August 24, 1976
    Assignee: Paul M. Hankison
    Inventor: Charles H. Graham