Pipe joints or couplings – With casing – lining or protector – Lined
Reexamination Certificate
2005-02-01
2005-02-01
Nicholson, Eric K. (Department: 3679)
Pipe joints or couplings
With casing, lining or protector
Lined
C285S226000, C285S334500
Reexamination Certificate
active
06848719
ABSTRACT:
This invention relates to a connector having an inner polymeric liner with either two opposed flared ends or one flared end and an opposed sealing end, a bendable outer metallic sleeve having two opposed flared ends of essentially similar geometry to either the polymeric liner flared ends or one flared end and an opposed sealing end shelf, and two outwardly facing threaded nuts, each of said nuts having a shelf which engages the opposed flared ends of said metallic sleeve. The connector will often have a ribbed segment between the ends and washers for sealing engagement with the interior wall end portion of the liner at the flared end.
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Buckingham Doolittle & Burroughs LLP
Nicholson Eric K.
Wagner Louis F.
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