Percussion boring machine

Details Percussion boring machine Percussion boring machine

E - Fixed Constructions

21

B

E21B 1/00 (2006.01) E21B 4/14 (2006.01)

Patent

CA 2223309

A percussion boring machine comprising a striking piston which is axially movable in a housing (1) and has its movement controlled by means of a control pipe (2) and an elastic separator (4) which is held in position by means of a disk member (8) which is releasably connected to the control pipe and is arranged between the housing and the control pipe.

Le présent brevet vise une machine de forage par percussion composée d'un piston frappeur se déplaçant axialement dans un carter (1), et dont le mouvement est contrôlé par un tube de commande (2), et d'un séparateur élastique (4) maintenu en place par un disque (8) raccordé de façon amovible au tube de commande et disposé entre le carter et le tube de commande.

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