E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 12/06 (2006.01)
Patent
CA 2281759
A tool (3) for removing debris from a helical blade (2) of an auger (1) or other screw-conveyor, the tool (3) comprising a central shaft (4) about which is helically arranged a plurality of radially projecting elements (5). In use, the tool (3) is rotated as the auger (1) is withdrawn from the ground, and the radially projecting elements (5) pass between adjacent flights so as to remove locked-in soil.
L'invention concerne un outil (3) pour enlever les débris d'une pale hélicoïdale (2) de tarière (1) ou d'une vis transporteuse. Ledit outil (3) comprend un arbre central (4) autour duquel plusieurs éléments saillant radialement (5) sont disposés en hélice. Lorsqu'il est utilisé, l'outil (3) est mû en rotation à mesure que la tarière (1) est retirée du sol, et les éléments saillant radialement (5) passent entre les spires adjacentes de sorte qu'ils enlèvent la terre coincée à ce niveau.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Cementation Foundations Skanska Limited
Kvaerner Cementation Foundations Limited
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