Method for unclogging a pipe carrying dangerous substances

Details Method for unclogging a pipe carrying dangerous substances Method for unclogging a pipe carrying dangerous substances

1991-05-14

1993-03-30

Morris, Theodore

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 2212, 134 24, B08B 902

Patent

active

051980371

ABSTRACT:
So as to unclog a pipe (16) carrying dangerous and accessible substrances after the removal of a movable member (24, 26), this member is replaced by a guiding member (42), a hydraulic shuttle (66) then being introduced into this guiding member, this shuttle being connected to a high pressure hydraulic source (70) through a box (56) equipped with means for washing the shuttle at the time the latter is withdrawn and means for recovering effluent. The shuttle is then conditioned in a winder connected directly on the box (56).

REFERENCES:
patent: 2041209 (1936-05-01), Ridley
patent: 2758917 (1956-08-01), Popp
patent: 3711993 (1973-01-01), Liesch et al.
patent: 4007797 (1977-02-01), Jeter
patent: 4225362 (1980-09-01), Sentell
patent: 4508577 (1985-04-01), Conn et al.
patent: 4848380 (1989-07-01), Francis et al.
patent: 5007968 (1991-04-01), Coffman et al.

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