Automatic inner pipeline surface washing apparatus

Details Automatic inner pipeline surface washing apparatus Automatic inner pipeline surface washing apparatus

1991-09-10

1993-02-23

Coe, Philip R.

Cleaning and liquid contact with solids

Apparatus

Automatic controls

425506, 134167C, 137240, 251 5, B08B 904

Patent

active

051881349

ABSTRACT:
Each of the washing units A and B comprises an openable and closable pinch valve unit 4 branchwise connected to a pipeline C, an autofeeder unit 5 for controlling the feed for advance and retraction movement of a high pressure hose 6 having rotatable nozzle unit connected to the front end thereof, and a hose reel unit 7 for winding and unwinding the high pressure hose. During washing operation, the nozzle unit enters the pipeline C through the pinch valve unit 4 now opened to wash the inner surface of the pipeline. During nonwashing period, the nozzle unit is moved rearward and completely isolated from the pipeline by the pinch valve unit 4 now closed. Therefore, the washing units A and B are completely separated from the pipeline C during nonwashing period.

REFERENCES:
patent: 3075535 (1963-01-01), Lasting
patent: 3526547 (1970-09-01), Shock
patent: 3872521 (1975-03-01), Friedman
patent: 4546789 (1985-10-01), Taylor
patent: 4643218 (1987-02-01), Reed, Jr.
patent: 4981150 (1991-01-01), Francis et al.

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