Boring device for lining material in branched portions of...

Details Boring device for lining material in branched portions of... Boring device for lining material in branched portions of...

E - Fixed Constructions

21

B

166/10

E21B 29/00 (2006.01) F16L 55/179 (2006.01) F16L 55/26 (2006.01)

Patent

CA 1320124

49 ABSTRACT The present invention relates to a boring device adapted to bore the lining material blocking a branched portion where there is an opening for connecting a main pipeline with a branched pipeline (33), after the inner surface of a pipe (31), such as a gas conduit, a city water conduit or a sewerage pipe, in particular, a conduit buried in the ground, has been lined with lining material (30-) for maintenance, repairs and reinforcement purposes. The features of the boring device reside in improvements of the mode of attachment of the television camera (8) for projecting the position of the leading end of the borer (28) on its screen, the mode of attachment of the borer (28) to the body (9), the driving system of the borer (28), and also of the cutting blades of the borer (28) for cutting off the lining material.

579900

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