Shank adapter

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 17/042 (2006.01) B23K 20/12 (2006.01) B23P 15/28 (2006.01) B25D 17/00 (2006.01)

Patent

CA 2247842

A shank adapter for a rock drill, which is used to connect one end of a drill string to a rock drill, has a chuck end (10) made from one piece of material and an opposite, threaded end (16) made from another, different, material. The chuck end and the threaded end are permanently joined to one another in one stage of manufacturing.

Cet adaptateur de tige, destiné à un trépan à rocher et utile pour relier une extrémité d'un train de tiges à un trépan à rocher, présente une extrémité mandrin (10) réalisée dans une seule pièce d'un matériau, et une extrémité opposée et filetée (16) réalisée dans un autre matériau. Ces extrémités sont assemblées l'une avec l'autre de façon permanente au cours d'une étape de fabrication.

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