Pipe joints or couplings – Packed – Externally with clamp
Reexamination Certificate
2006-10-24
2006-10-24
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
Packed
Externally with clamp
C285S104000, C285S339000, C285S374000, C285S421000, C285S910000
Reexamination Certificate
active
07125054
ABSTRACT:
A sealing and restraining gasket for preventing separation of a pipe joint used to join a bell end of a female pipe to the male end of a mating pipe. The gasket is formed from a compressible body of elastomeric material and carries a rigid ring with gripping teeth for engaging an outer surface of the mating male pipe. The ring has a gap at one location. The gripping teeth of the rigid ring are oriented so as to be out of contact with and initially angled away from the outer surface of the male plastic pipe. The teeth are forced into engagement with the exterior surface of the male pipe as the pipe joint is assembled and the gap in the ring is partly closed. The teeth are oriented to allow movement of the male pipe in a first direction relative to the female bell end opening during assembly, but to resist movement in a opposite direction after the pipe joint has been assembled.
REFERENCES:
patent: 2585453 (1952-02-01), Gallagher et al.
patent: 3381983 (1968-05-01), Hanes
patent: 3724880 (1973-04-01), Seiler
patent: 3963298 (1976-06-01), Seiler
patent: 4092036 (1978-05-01), Sato et al.
patent: 4229026 (1980-10-01), Seiler
patent: 4799717 (1989-01-01), Kingsford
patent: 4848805 (1989-07-01), Bucher et al.
patent: 4867488 (1989-09-01), Jones
patent: 4878698 (1989-11-01), Gilchrist
patent: 4886304 (1989-12-01), Kunsman
patent: 5037144 (1991-08-01), Peting et al.
patent: 5067751 (1991-11-01), Walworth et al.
patent: 5197768 (1993-03-01), Conner
patent: 5205356 (1993-04-01), Bridges et al.
patent: 5205594 (1993-04-01), Stoll et al.
patent: 5269569 (1993-12-01), Weber et al.
patent: 5295697 (1994-03-01), Weber et al.
patent: 5297826 (1994-03-01), Percebois et al.
patent: 5335946 (1994-08-01), Dent et al.
patent: 5360218 (1994-11-01), Percebois et al.
patent: 5398980 (1995-03-01), Hunter et al.
patent: 5431453 (1995-07-01), Yamashita et al.
patent: 5464228 (1995-11-01), Weber et al.
patent: 5476290 (1995-12-01), Bergmann et al.
patent: 5779285 (1998-07-01), Robison
patent: 5803513 (1998-09-01), Richardson
patent: 5951058 (1999-09-01), Dickinson et al.
patent: 6220635 (2001-04-01), Vitel et al.
patent: 6371530 (2002-04-01), Sato et al.
patent: 6371531 (2002-04-01), Robison
patent: 6467813 (2002-10-01), Takemura et al.
patent: 6488319 (2002-12-01), Jones
patent: 6502867 (2003-01-01), Holmes et al.
patent: 6505860 (2003-01-01), Trichard
patent: 6688652 (2004-02-01), Holmes et al.
patent: 2001/0045746 (2001-11-01), Russell
patent: 2002/0163193 (2002-11-01), Abuellel
patent: 2003/0025329 (2003-02-01), Saito et al.
patent: 2004/0075217 (2004-04-01), Copeland
patent: 2005/0046189 (2005-03-01), Corbett et al.
patent: 2272264 (1994-05-01), None
Gunter, Jr. Charles D.
Hewitt James M.
S & B Technical Products, Inc.
LandOfFree
Self restraining gasket and pipe joint does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self restraining gasket and pipe joint, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self restraining gasket and pipe joint will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3677695