Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal for a pipe – conduit – or cable
Reexamination Certificate
2005-09-27
2005-09-27
Pickard, Alison K. (Department: 3676)
Seal for a joint or juncture
Seal between fixed parts or static contact against...
Contact seal for a pipe, conduit, or cable
C277S604000, C277S616000, C277S625000, C285S344000
Reexamination Certificate
active
06948718
ABSTRACT:
An annular gasket for affecting a watertight seal between two sections of corrugated pipe. The gasket comprises a seating portion dimensioned to fit within an annular recess in one of the mated sections of corrugated pipe, and a sealing portion integrally molded with the seating portion. The sealing portion includes a first shoulder portion, a second shoulder portion, and an arcuate surface extending between the first and second shoulder portions. The mass of the seating portion is less than the mass of the sealing portion.
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Tim Toliver, “Composite Material Pipe Joint Design and Analysis for 36″ Diameter Corrugated High Density Polyethylene (HDPE) Pipe”, Jan., 2002.
Andrick William C.
Shaffer William V.
Advanced Drainage Systems, Inc.
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Pickard Alison K.
LandOfFree
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