Drainage pipe stoppage displacer

Details Drainage pipe stoppage displacer Drainage pipe stoppage displacer

1987-10-23

1988-08-02

Artis, Henry K.

Baths, closets, sinks, and spittoons

Obstruction remover

Connected to a source of external fluid under pressure

4256, 4661, 4DIG9, E03D 1100

Patent

active

047606142

ABSTRACT:
A device for displacing or washing out blockages in pipe systems. The device has a central tube which can be closed with a gate valve which thereby isolates the pipe above and below the device. Fluid under pressure is introduced through a three way valve that can be positioned to direct the flow of fluid into the isolated chamber above the gate valve if that is where the blockage is or below the gate valve if the blockage is there.

REFERENCES:
patent: 1232767 (1917-07-01), Camfield et al.
patent: 1660121 (1928-02-01), Fetter
patent: 1938064 (1933-12-01), Carmine
patent: 3936892 (1976-02-01), Miller

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