Patents Assigned to Workman Developments, Inc.
  • Butt fusion apparatus with means for changing quickly between straight pipe and pipe fitting attachment positions, and method
    Patent number: 5692285
    Abstract: An apparatus for attaching abutting ends of first and second coaxial pipe sections together which includes a pivot assembly mounting a clamping jaw for pivotal movement between a raised, coaxial pipe-clamping position and a lowered position for permitting a fitting which would otherwise interfere with the clamping jaw to be attached to another pipe section.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: December 2, 1997
    Assignee: Workman Developments, Inc.
    Inventors: James Collen Weimer, Jack Lee Workman, Gary Wayne Gunno