Conduit plug

Details Conduit plug Conduit plug

1978-06-30

1980-02-19

Ward, Jr., Robert S.

Baths, closets, sinks, and spittoons

Strainer, stopper, plug or closure

Plugs

251189, 2771166, 137800, 138 89, 215358, 220237, 292DIG65, A47K 114

Patent

active

041886755

ABSTRACT:
An improved lavatory drain plug includes a split hub structure, normally separated axially, upon which a cylindrical sealing member is mounted. Bringing the hub together exerts an outward radial force on the sealing member while the rim adjacent the hub exerts both radial and axial forces, resulting in a net outward movement of the member to sealingly engage the walls of a conduit into which the plug has been inserted.

REFERENCES:
patent: 112029 (1871-02-01), Gates
patent: 117402 (1871-07-01), Gibson et al.
patent: 772434 (1904-10-01), Schultz
patent: 1613251 (1927-01-01), Stead
patent: 2023560 (1935-12-01), Wayer
patent: 2273480 (1942-02-01), Yates
patent: 2683499 (1954-07-01), DeCroes
patent: 3010694 (1961-11-01), Lynch
patent: 3140730 (1964-07-01), Costes
patent: 3155116 (1964-11-01), VerNooy
patent: 3901167 (1975-08-01), Reese
patent: 3954123 (1976-05-01), Duckworth
patent: 4027701 (1977-06-01), Duckworth
patent: 4086670 (1978-05-01), Krause et al.
patent: 4088149 (1978-05-01), Logsdon
patent: 4100629 (1978-07-01), Jones et al.

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