Self-propelled vehicle for use in pipes

Details Self-propelled vehicle for use in pipes Self-propelled vehicle for use in pipes

1989-01-25

1990-07-03

Housel, James C.

Coating apparatus

With indicating, testing, inspecting, or measuring means

With means for visual observation

1510414, 1510431, 118306, 118315, 118317, 118323, 118DIG10, B05B 1306, B05C 708

Patent

active

049381679

ABSTRACT:
A self-propelled vehicle for use in performing work inside pipes of piping systems, for example, for cleaning or coating the inner surface of the pipe includes at least three traveling assemblies connected to the body of the vehicle by parallel link assemblies. The traveling assemblies are travaeled along the pipe inner surface to be worked on by the operation of a drive unit and transmissions while being pressed against the pipe inner surface by a collapsing assembly. During travel, a liquid can be sprayed onto the pipe inner surface by a nozzle which is rotated.

REFERENCES:
patent: 2278026 (1942-03-01), Smith
patent: 2742259 (1956-04-01), Boucher
patent: 3056155 (1962-10-01), Harmes
patent: 3135629 (1964-06-01), McLean
patent: 4092950 (1978-06-01), Hart
patent: 4112850 (1978-09-01), Sigel-Gfeller
patent: 4178875 (1979-12-01), Moschetti
patent: 4418437 (1983-12-01), French
patent: 4475260 (1984-10-01), Beck
patent: 4782786 (1988-11-01), Himmler

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