Patents Assigned to Rubber Fab, Inc.
  • Gasket for sanitary fittings
    Patent number: 6857638
    Abstract: A gasket for establishing a seal between the flanges of sanitary pipe fittings having a lumen of pre-determined diameter which comprises an O-ring portion of elastomeric material and an incompressible ring member bonded to said O-ring portion, said ring member having a substantially flat cross-section to limit compression of the O-ring.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: February 22, 2005
    Assignee: Rubber Fab, Inc.
    Inventors: Paul Robert Dupont, Colin W. Haase