B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
61/9
B63B 35/12 (2006.01) E02B 15/02 (2006.01) E02B 17/00 (2006.01) E21B 7/00 (2006.01)
Patent
CA 1146368
ABSTRACT OF THE DISCLOSURE In order to improve the efficiency and reliability of the cutter units employed in large scale ice disaggregation sys- tems, a cutter configuration is employed characterized by an out- wardly extending arm which sweeps rearwardly from the direction of travel to provide clearance for ice chunks and then sharpwardly forwardly to terminate in an ice-engaging portion. The ice-engag- ing portion includes a relatively long and narrow central "pick" portion for breaking very cold ice, chisel-like cutting edges directed to each side of the base of the "pick" portion to frac- ture cold ice as well as warm ice, and an inverted skate portion which cleaves the ice and promotes passage of the ice chunks around the tooth structure to facilitate clearing.
374448
Gowling Lafleur Henderson Llp
Suncor Inc.
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