Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1996-09-11
1998-01-27
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277152, 277193, 277DIG10, 285 4, F16J 1510
Patent
active
057115362
ABSTRACT:
An improved multi-function seal component for use in the walls of poured concrete or plastic tank or box components of fluid distribution systems is disclosed. The seal component includes a cylindrical wall member, an angled frustro-conical wiper blade which is connected to a front end of the cylindrical wall member, and a backplate component which is connected to the back end of the cylindrical wall member. The backplate component may be integrally molded with the cylindrical wall member or may be formed as a separate component which attaches to the cylindrical wall member during assembly. When the backplate is molded as a separate component, it includes a U-shaped groove for attaching to the cylindrical wall member and includes a locking mechanism for releasably securing the backplate to the cylindrical wall member. The backplate also includes a sealing membrane which may include a plurality of removable portions each including an annular score line and one of more of the removable portions may further include a pull tab. The removable portions may be selectively removed to accommodate the insertion of different size pipes through the sealing membrane. When used in a poured concrete tank or box, a leveling device may be disposed in one of the openings formed by removing a portion of the sealing membrane for adjusting fluid flow out of the tank or box. When used in a plastic distribution or drop box, the backplate itself can have one of the openings removed so that the backplate itself can be used as a leveling device. The remaining portion of the sealing membrane deforms slightly inwardly around the leveling device, or outwardly around a pipe, to form, in effect, a secondary wiper blade to seal the connection to the backplate.
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Beres John L.
Cuchlinski Jr. William A.
Tuf-Tite, Inc.
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