Disposable drain strainer

Baths – closets – sinks – and spittoons – Strainer – stopper – plug or closure – Strainer

Patent

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Details

4293, E03C 126

Patent

active

041341627

ABSTRACT:
A drain strainer that includes a vacuum cup defining a ring-shaped base that has an inverted generally conical first shell projecting upwardly therefrom, which shell has a number of circumferentially and vertically spaced first drain openings therein that are of substantial area. Due to the vacuum cups forming a part thereof, the base may be removably secured to the bottom of a sink to encircle the drain discharge formed in the latter. The external surface of the shell and the upper surface of the base merge into a downwardly and inwardly extending ring-shaped area in which stringy material such as hair, and the like, will accumulate rather than passing through the first drain openings. When it is desired to restrict the size of solid particles passing to the discharge opening, a second generally conical shell formed from metal foil, or the like, overlies the first shell, with the second shell having a number of spaced second drain openings formed therein that are radially aligned with the first drain openings but are of substantially smaller area. The second shell is removably supported on the first shell, and this second shell is so inexpensive that it may be discarded when it becomes clogged with foreign material.
A punch and forming die is provided that permits the second shell to be formed from a circular blank of a metal foil, such as aluminum, or the like. However, should it be desired, the second shells may be preformed, and removably secured to the first shell when the occasion so requires.

REFERENCES:
patent: 1880962 (1932-10-01), Koppelman
patent: 3402407 (1968-09-01), Andrews
patent: 3788485 (1974-01-01), Bruning

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