Patents Assigned to Properietary Technology, Inc.
  • Patent number: 5031941
    Abstract: A connector for a piping system has a female socket with a rotatable sleeve. The sleeve and female socket include a flange system to retain the sleeve in position to retain a male conduit within the female socket.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: July 16, 1991
    Assignee: Properietary Technology, Inc.
    Inventor: Donald D. Bartholomew
  • Patent number: D368007
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: March 19, 1996
    Assignee: Properietary Technologies, Inc.
    Inventor: Richard J. Macor