Serpentine tube inspection positioning spine

Details Serpentine tube inspection positioning spine Serpentine tube inspection positioning spine

1991-10-07

1992-11-03

Scherbel, David A.

Machine element or mechanism

Control lever and linkage systems

Hand operated

745025, 464178, 403 57, 138103, F16C 128

Patent

active

051598493

ABSTRACT:
A serpentine tube inspection positioning spine formed from a plurality of identical links. Each link has a convex first end and concave second end spaced along the longitudinal axis of the link whereby adjacent links may be mated together. An axially extending bore in each link receives a continuous cable maintained under tension by a spring attached to one end of the cable. This places pressure on the links that serves to maintain the mated links in a rigid straight configuration while under compressive forces during insertion into a tube to be inspected. The resilience of the spring also allows pivoting of adjacent links for travelling through a bend in the tube.

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