E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/22 (2006.01) E02D 1/02 (2006.01) E02D 7/20 (2006.01) E02D 13/06 (2006.01) E21B 49/00 (2006.01)
Patent
CA 2078326
ABSTRACT OF THE INVENTION 1. A device for driving rods used primarily for soil mechanics tests into the ground, of the type comprising a traction and compression resistant tubular one-piece rod (42) made of a material and capable of being curved by reversible elastic derformation, a drum (44) for winding said rod (42) and a device (46) for driving and extracting said rod.
Etat Francais Represente Par Le Laboratoire Central Des Ponts Et
Mccarthy Tetrault Llp
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