System for cleaning an inside surface of a duct

Details System for cleaning an inside surface of a duct System for cleaning an inside surface of a duct

1993-07-28

1994-06-07

Gerrity, Stephen F.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15339, 153401, 15406, A47L 902

Patent

active

053177827

ABSTRACT:
A system including an apparatus for cleaning an inside surface of a duct. The system includes a traveling portion and a remote-control monitor portion. The traveling portion includes a traveling truck and the truck carries a compressed air ejector and a video camera, and the remote-control monitor portion receives images from the video camera to control remotely the traveling portion while monitoring a front view of the traveling portion in accordance with the signal coming from the video camera. The compressed air ejector is equipped with a rotating nozzle for ejecting compressed air toward the duct inside surface in an oblique direction in front of the traveling truck. An air compressor can be carried by the truck or the compressed air can be fed to the nozzle ejector via a hose from outside the duct.

REFERENCES:
patent: 2358557 (1944-09-01), Boyd et al.
patent: 3074098 (1963-01-01), Downing
patent: 3655122 (1972-04-01), Brown et al.
patent: 4690159 (1987-09-01), Vadakin et al.
patent: 4985763 (1991-01-01), Fraser
patent: 4986314 (1991-01-01), Himmler
patent: 5018545 (1991-05-01), Wells
patent: 5020188 (1991-06-01), Walton

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