Drain plug

Details Drain plug Drain plug

1987-09-17

1989-01-03

Petrakes, John

Baths, closets, sinks, and spittoons

Strainer, stopper, plug or closure

Plugs

4287, A47K 114

Patent

active

047946547

ABSTRACT:
The sealing stopper has a lid (1) which is set onto a sealing part (2) with a conical sealing surface (8), leaving an annular space (15). At the bottom side of the lid rim (11) is a protrusion with a hemispheric recess, into which an end segment (4) of a chain (3) is set. In this manner, the latter is directly and tightly fastened to the sealing body and has no protruding parts on its upper side which could interfere with use of the stopper in the drain valve of a bathtub.

REFERENCES:
patent: 1370170 (1921-03-01), Ullman
patent: 1384038 (1921-07-01), Becker
patent: 1607521 (1926-11-01), Frankenberger
patent: 2139361 (1938-12-01), Fredrickson
patent: 2194940 (1940-03-01), Hiertz
patent: 2355979 (1944-08-01), Keyzer
patent: 2460768 (1949-02-01), Riley
patent: 2801021 (1957-07-01), Wood
patent: 3102277 (1963-09-01), Anderson
patent: 4188676 (1980-02-01), Tolnai et al.
patent: 4420844 (1983-12-01), Puckett et al.
patent: 4751752 (1988-06-01), Ewing

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