Apparatus for cleaning sewers

Details Apparatus for cleaning sewers Apparatus for cleaning sewers

1990-11-01

1991-12-03

Stinson, Frankie L.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

15302, 15315, 134167C, A47L 516

Patent

active

050689401

ABSTRACT:
An apparatus and method for cleaning sewers of solid materials using normal and injected water flow to suspend the solids in a slurry. A submersible pump moves the slurry from the bottom of the sewer up to a pressurized container where the water content of the slurry is decanted and reused as injection water while the particulate material settles to the bottom of the pressurized container. When the container is filled with solid material it may be removed for emptying at a waste dump.

REFERENCES:
patent: 3810544 (1974-05-01), Armstrong
patent: 3842461 (1974-10-01), Wurster
patent: 3959840 (1976-06-01), Sato
patent: 4121915 (1978-10-01), Anderson
patent: 4134174 (1979-01-01), Flynn et al.
patent: 4525277 (1985-06-01), Poulin
patent: 4530131 (1985-07-01), Zell
patent: 4578198 (1986-03-01), Schmidt
patent: 4652368 (1987-03-01), Ennis
patent: 4818419 (1989-04-01), Minis
patent: 4935984 (1990-06-01), Bryant

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