Seal for a joint or juncture – Process of static sealing – Pipe – conduit – or cable
Reexamination Certificate
2008-06-06
2011-12-13
Pickard, Alison (Department: 3674)
Seal for a joint or juncture
Process of static sealing
Pipe, conduit, or cable
C277S609000, C277S624000, C277S626000, C277S647000, C277S651000, C285S110000, C285S374000
Reexamination Certificate
active
08074996
ABSTRACT:
An sealing gasket is shown for use in forming joints of plastic pipe. The gasket has a bulbous region which is bisected by a planar region which forms a pair of oppositely extending wing-like flaps. These features of the gasket allow it to be more reliably seated on the working mandrel used to bell a female, thermoplastic pipe end. The wing-like flap portions of the gasket form wiper surfaces for a subsequently installed male, spigot pipe end as the joint is formed.
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Chinchilla Randall
Darce Gerardo
Gunter, Jr. Charles D.
Pickard Alison
S & B Technical Products, Inc.
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