B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
114/21
B63B 5/00 (2006.01) B63B 35/08 (2006.01) B63B 35/44 (2006.01) E21B 7/00 (2006.01) E21B 7/128 (2006.01)
Patent
CA 1094397
ABSTRACT OF THE DISCLOSURE Novel apparatus is provided for maintaining a substan- tially ice-free zone around a vessel out to 100 feet or more. The apparatus includes (a) a plurality of floating modules disposed around, and each connected at one end to, the vessel; (b) a continuous, downwardly depending skirt extending complete- ly around the outer periphery of the plurality of floating mod- ules; and (c) an air/water heat exchanger in a selected plurality of such floating modules. The combination of the floating can- opies around the vessel, and the hot air contained within the ice-free zone by the skirts, provides an ice-free zone around the vessel.
294098
Bercha Frank G.
O'rourke J. Cam
Pilkington G. Roger
Dome Petroleum Limited
Wotherspoon S. F. M.
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