Patent ID: 6793202
Filing Date: 2004-09-21
Classification: G02B,H02G

Abstract:
A device for the introduction or removal of a cable in conduits for passage of cables within which a current of water it conveyed, the device comprising:thrust means to provide for the progression of the cable, a heat engine for selectively controlling either a hydraulic pressure circuit or an air compression circuit through a selection switch system, said hydraulic circuit connected to a water tank and to an injection gun to inject water into the conduits, and said air compression circuit connected to said injection gun to inject compressed air into the conduits after the laying of cable in order to drain the conduits, sensors to measure the lengths and speed of progression of the cable, and a strain gauge to measure the force exerted on the cable, wherein said sensors and said gauge are linked to a central processing unit to manage commands that are sent to the central processing unit to drive the thrust means and the heat engine, wherein said device is positioned on a trailer towable by a light vehicle.