Patents Assigned to Butler Taper Joint
  • Mechanical pipe joint and method of forming the same
    Patent number: 4696499
    Abstract: A mechanical pipe joint is disclosed in which a pin formed on the end of one pipe section is inserted in a socket formed in the end of another pipe section. The tapered section on the pin has a taper angle less than the taper angle of the tapered section on the socket. When the pin is inserted to the desired depth, an annular cavity will be formed between the tapered section in which sealant is trapped to form an annular seal for the joint.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: September 29, 1987
    Assignee: Butler Taper Joint
    Inventor: Major G. Butler