Shut-off valve excavator

Details Shut-off valve excavator Shut-off valve excavator

1975-03-07

1976-06-15

Bleutge, Robert L.

Cleaning and liquid contact with solids

Apparatus

With plural means for supplying or applying different fluids...

134104, 134177, 134183, 134198, 15304, B08B 302

Patent

active

039630366

ABSTRACT:
Apparatus for cleaning out and flushing away debris such as soil, rocks and the like from around a shut-off valve on a gas or water main located at the bottom of a concrete pipe or sleeve is disclosed. The apparatus is comprised of a first elongated section of pipe having means for connecting sources of water and compressed air thereto, and a second parallel section of pipe generally of the same length. The two sections of pipe are inserted into the concrete pipe or sleeve and water and compressed air travel down the first pipe and loosen the debris from around the valve stem, flushing it up the second pipe. A slideable cover is carried by the two pipes and serves to seal the upper end of the sleeve or cylinder thereby insuring that all the debris and flushing fluid is forced to exit through the second pipe.

REFERENCES:
patent: 666799 (1901-01-01), Buckwalter et al.
patent: 751253 (1904-02-01), Brady
patent: 1654727 (1928-01-01), Green et al.
patent: 2612998 (1952-10-01), Smith
patent: 3677272 (1972-07-01), Schrank et al.
patent: 3849830 (1974-11-01), Wagner

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