Push-through pump

Details Push-through pump Push-through pump

1983-02-07

1984-05-01

Artis, Henry K.

Baths, closets, sinks, and spittoons

Obstruction remover

Connected to a source of external fluid under pressure

4257, E03D 1100

Patent

active

044452365

ABSTRACT:
This invention appertains to plumber's tools for unplugging stoppages in pipes or stacks and comprises a vacuum cup at one end of a handle and a reversible selectively operable pump which is mounted to operate through the cup.
The parts of the mechanism are positionable so that the tool operates as a plunger with a vacuum cup or as a pump.

REFERENCES:
patent: 2820467 (1958-01-01), Mattich
patent: 3934280 (1976-01-01), Tancredi
patent: 4053955 (1977-10-01), Canham
patent: 4097937 (1978-07-01), Hofmann
patent: 4174548 (1979-11-01), Dunn
patent: 4186451 (1980-02-01), Ruo

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