Gasket with locking lugs

Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal for a pipe – conduit – or cable

Reexamination Certificate

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Details

C277S615000, C277S626000, C285S344000

Reexamination Certificate

active

07401791

ABSTRACT:
A pipe gasket includes a toroidal gasket body and projections extending away from a peripheral surface of the gasket body. The gasket body is configured to allow the gasket body to roll along a spigot end of a first pipe as the spigot end is received inside a bell end of a second pipe. The projections each include a first surface and a second surface. The first surface is configured to facilitate rotation of the gasket body in a first rotational direction. The second surface is configured to inhibit rotation of the gasket body in a second, opposite, rotational direction.

REFERENCES:
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patent: 2004/0222597 (2004-11-01), Benecke
SuperSeal™ Overview; Product Selection Guide; Internet website: http://www.semcoinc.com/Products.nsf/o/2A7B11446795974886256F1D0044BE64?Edit...; Nov. 29, 2004.

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