Walking borescope

Details Walking borescope Walking borescope

1989-08-07

1990-06-19

Lee, John D.

Surgery

Truss

Pad

128 4, 604 95, 604 97, 604 99, 604101, 606194, G02B 2326

Patent

active

049347861

ABSTRACT:
An inflatable-bladder walking arrangement is provided on the outer surface of a borescope insertion tube. A pair of elongated bladders is wrapped helically over the insertion tube. This is configured such that one bladder of the pair extends radially and distally, while the other bladder when inflated expands radially and proximally. Compressed air or another flud is provided, periodically and in phase relation, to the two bladders of the pair. The bladders are inflated in alternate phase relation to move the insertion tube in a desired one of its proximal and distal directions.

REFERENCES:
patent: 3485237 (1969-12-01), Bedford
patent: 3665928 (1972-05-01), Del Guercio
patent: 3841764 (1974-10-01), Snell et al.
patent: 3895637 (1975-07-01), Choy
patent: 4148307 (1979-04-01), Utsugi
patent: 4207872 (1980-06-01), Meiri et al.
patent: 4389208 (1983-06-01), LeVeen et al.
patent: 4769006 (1988-09-01), Papantonakos

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