Apparatus for installing conduit

Details Apparatus for installing conduit Apparatus for installing conduit

1983-05-04

1985-07-09

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Method or apparatus for placement of conductive wire

Conduit snakes

E21C 2916

Patent

active

045277753

ABSTRACT:
Apparatus for installing conduit in a confined wall space are disclosed. A tape is introduced into the confined space behind the wall and is extended to an outlet point by moving a tool along the exterior wall surface. The tool has an electromagnet which attracts a metal roller on the end of the tape, drawing the roller against the interior wall surface. The tool has rollers, or wheels, allowing it to roll on the exterior wall surface, and hence the extension of the tape is by means of combined roller action on both surfaces of the wall. At the outlet, conduit is attached to the tape and is pulled into the confined space by retracting the tape. Retraction of the tape may be accomplished by a drum onto which the tape is wound.

REFERENCES:
patent: 1978957 (1934-10-01), Pardieck
patent: 2812921 (1957-11-01), Leith
patent: 2993395 (1961-07-01), Bohn
patent: 3078073 (1963-02-01), Zizzo
patent: 3291449 (1966-12-01), Hughes
patent: 3971543 (1976-07-01), Shanahan

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