Drain flushing device with top mounted funnel shaped liquid inle

Details Drain flushing device with top mounted funnel shaped liquid inle Drain flushing device with top mounted funnel shaped liquid inle

1993-10-28

1995-04-04

Bertsch, Richard A.

Pumps

Expansible chamber type

417490, 417550, 425503, F04B 704

Patent

active

054031664

ABSTRACT:
A drain flushing device for allowing a user to unclog a drain in either of two modes. The user is given the option to either use the device as a liquid column guide or as a pump.

REFERENCES:
patent: 1684880 (1928-09-01), Norton
patent: 4096597 (1978-06-01), Duse
patent: 4186451 (1980-02-01), Ruo

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