(under subclass 60) Method or apparatus wherein the substance being confined, regulated, or whose formation is inhibited is ice.
(1) Note. Devices, such as fenders, guides, comminutors,
etc., associated with marine structures to prevent ice formation on the structure or damage to such structures will not be found herein since such structures neither prevent the formation of floating ice nor do they confine a mass of floating ice.
SEE OR SEARCH THIS CLASS, SUBCLASS:
211+, for subject matter relating to the control of ice formation on marine structure.