Apparatus for cleaning conduits or the like

Details Apparatus for cleaning conduits or the like Apparatus for cleaning conduits or the like

1978-10-18

1979-11-13

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

1510407, B08B 904

Patent

active

041738063

ABSTRACT:
Apparatus for cleaning straight or arcuate conduits has a housing which fits with clearance into a conduit and has an elastic washer slidably engaging the internal surface of the conduit so that the pressure of a fluid which fills the conduit behind the housing propels the housing forwardly until the housing encounters an incrustation or another obstruction. The housing contains a reciprocable impeller which can strike against the housing under the action of a spring to thereby cause a set of cutting tools at the exterior of the housing and in front of the washer to break up or strip off the obstruction. The impeller is cocked by a hollow plunger which has a flow-restricting end wall for admission of pressurized fluid into the internal space of the housing and moves rearwardly when the internal space is free to communicate with the conduit portion ahead of the housing by way of outlet openings which are provided in the housing and are normally sealed by a reciprocable valve which is biased to its operative position by a spring.

REFERENCES:
patent: 2163384 (1939-06-01), Stevens
patent: 2601614 (1952-06-01), Johnson

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