US 7,549,650 B2
	Ice brake
Leonard Haire, Wasilla, Ak. (US); Daniel N. Russell, Willow, Ak. (US); and Kenneth Wayne Johnson, Jr., Wasilla, Ak. (US)
Assigned to Alaska Airboats, LLC, Wasilla, Ak. (US)
Filed on Jul. 01, 2005, as Appl. No. 11/171,988.
Prior Publication US 2007/0000418 A1, Jan. 04, 2007
Int. Cl. B63H 25/44 (2006.01)

U.S. Cl. 280—28.11  [114/170; 114/171; 188/8]

11 Claims

1. An ice brake comprising a flexible blade having a bottom edge and a top edge, said blade being held to a transom of a craft by braces that allow said brake to slide up and down, said braces including a liner located on each side of said blade through which said blade can slide against said liner, said top edge being attached to and being driven up and down by a double-acting ram means, said ram means providing sufficient force to lift and crack loose said craft from being frozen down to ice, said bottom edge having at least one cutout section, and said cutout section allowing ice, snow, water, gravel, and debris accumulated by said brake to escape from in front of said blade.