Cleaning and liquid contact with solids – Apparatus – For work having hollows or passages
Patent
1997-09-24
1999-04-27
Stinson, Frankie L.
Cleaning and liquid contact with solids
Apparatus
For work having hollows or passages
134172, 134198, B08B 904
Patent
active
058968784
ABSTRACT:
In order to provide an improved pipe washing apparatus guaranteed to be free of the wearing and/or breaking of nozzle shaft, it is provided with a nozzle support to be fixed to the end of a washing hose, which is to be inserted in a pipe to be washed inside, a cylindrical nozzle rotatably fixed to the nozzle support and a nozzle guide member fixed to the forward end of the nozzle for guiding the nozzle along the inner circumference of the pipe. The nozzle support has a longitudinal water channel made along its center axis and closed at its forward end, and lateral jet outlets extending from the longitudinal water channel to open on the cylindrical circumference of the nozzle support. The cylindrical nozzle has a circumferential water chamber made on the inner circumference of the cylinder to communicate with the lateral jet outlets, first, circumferentially oblique jet outlets for rotating the nozzle and second, backward oblique jet outlets for driving the pipe washing apparatus forward, and a lubricating water channel is delimited between the nozzle support and the nozzle to communicate with the circumferential water chamber.
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patent: 4819314 (1989-04-01), Shaddock
patent: 4985763 (1991-01-01), Fraser
patent: 5125425 (1992-06-01), Folts et al.
patent: 5179753 (1993-01-01), Flaherty et al.
Shinsho Limited
Stinson Frankie L.
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