B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
B63B 35/08 (2006.01) B63H 5/08 (2006.01)
Patent
CA 2228792
A relatively wide vessel is assisted though an ice field by an icebreaker having a relatively narrow hull. The icebreaker includes two steerable propulsion mechanisms at the opposite ends respectively of the hull, and the propulsion mechanisms are used to propel the icebreaker through the ice field in a direction at a substantial angle to its keel line, thereby opening in one pass of the icebreaker a passage having a width substantially greater than the waterline width of the icebreaker.
Arpiainen Matti
Backstrom Magnus
Heideman Torsten
Mattson Tom
Ranki Erkki
Kirby Eades Gale Baker
Kvaerner Masa-Yards Oy
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