B - Operations – Transporting – 25 – D
Patent
B - Operations, Transporting
25
D
B25D 9/14 (2006.01) B25D 9/12 (2006.01) B25D 9/20 (2006.01)
Patent
CA 2161129
A rock drill with a percussion mechanism which includes a piston (32), a body (12) in which is formed a chamber (14), at least a first cylinder (18) which is located in the chamber and which, on an inner side, forms at least part of a sleeve for the piston (32), and a valve (22), for controlling movement of the piston, which is located on an outer side of the first cylinder (18). Stop means (142) integrally attached to the first cylinder prevents the valve from being removed.
Un dispositif de perforation de roche pourvu d'un mécanisme de percussion comprenant un piston (32), un corps (12) dans lequel est formé une chambre (14), au moins un premier cylindre (18) qui est situé dans la chambre et qui, sur une face interne, forme au moins une partie du manchon du piston (32), et une soupape (22), régulant le déplacement du piston, qui est placée sur une face externe du premier cylindre (18). Un dispositif d'arrêt (142) solidaire du premier cylindre empêche le retrait de la soupape.
Briggs Roger Robarts
Leppanen Jarmo Uolevi
Briggs Roger Robarts
Leppanen Jarmo Uolevi
Oyen Wiggs Green & Mutala Llp
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