Pipe joints or couplings – Flexible joint – rigid members
Reexamination Certificate
2005-07-12
2005-07-12
Nicholson, Eric K. (Department: 3679)
Pipe joints or couplings
Flexible joint, rigid members
C285S903000, C285S226000, C285S229000
Reexamination Certificate
active
06916049
ABSTRACT:
A pipe coupling for joining two sections of pipe provides six degrees of freedom where the pipe coupling includes an inlet portion, an outlet portion disposed opposite the inlet portion, and an intermediate portion disposed between the inlet and outlet portions for providing relative movement between the inlet portion and the outlet portion. The intermediate portion has a plurality of corrugations disposed about a circumference of the pipe coupling and each corrugation includes first and second arms diverging from a common vertex toward the inlet portion and outlet portion, respectively. The arms diverge at substantially a forty-five degree angle forming a V-shape, and each arm terminates at a transition area where each arm of the corrugation blends with the inlet portion and outlet portion, respectively.
REFERENCES:
patent: 680328 (1901-08-01), Henderson
patent: 1259233 (1918-03-01), Hartman
patent: 1864861 (1932-06-01), Schaller
patent: 3280847 (1966-10-01), Chisholm et al.
patent: 3318335 (1967-05-01), Heller
patent: 3638536 (1972-02-01), Kleinwachter et al.
patent: 4108050 (1978-08-01), Paynter
patent: 4676513 (1987-06-01), Tiegs et al.
patent: 4721030 (1988-01-01), Paynter
patent: 4753833 (1988-06-01), Fishgal et al.
patent: 4865357 (1989-09-01), Brinegar
patent: 5038834 (1991-08-01), Siegfried
patent: 5050894 (1991-09-01), Merel et al.
patent: 5397157 (1995-03-01), Hempel et al.
patent: 5882046 (1999-03-01), Thomas
patent: 5927344 (1999-07-01), Nobileau
patent: 6056018 (2000-05-01), Renaud
patent: 6298883 (2001-10-01), Kinzel
patent: 6715799 (2004-04-01), Hardy
patent: 05272674 (1993-10-01), None
Nicholson Eric K.
Welsh & Katz Ltd.
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