Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1994-05-11
1997-04-29
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277152, 277207A, 277212F, 285 4, F16J 1510
Patent
active
056241232
ABSTRACT:
An improved pipe seal assembly for use in the walls of a poured concrete tank or box in an on-site waste disposal system, a drainage system, and other poured concrete structures, the assembly including a seal member having an inclined, frusto-conical shaped wiper flange which is integrally connected by a living hinge to a cylindrical seal body, the wiper flange initially extending outwardly when the seal member is formed, such as by injection molding, but then folded inwardly about the living hinge member to its normal operating position. The improved pipe seal assembly includes an integrally-formed tearaway membrane, which has a pull tab member and associated score lines, to permit the membrane's selective removal when desired, thereby allowing the seal member to slideably receive a pipe extended through the folded wiper blade. The inwardly folded wiper flange also acts to releasably retain a mandrel to permit in-place casting of the improved pipe seal assembly within the wall of a poured concrete box or tank member.
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Cuchlinski Jr. William A.
Tuf-Tite, Inc.
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