Patent ID: 6836993
Filing Date: 2005-01-04
Classification: A01K

Abstract:
1. A self-propelled device for bi-directional movement across a bottom surface of a block of ice disposed over water comprising: a flotation base having a plurality of bi-directional non-binding flotation base skates attached thereto; a rod pivotally attached to the flotation base; and a flotation arm having a bi-directionally non-binding flotation arm skate attached thereto, the flotation arm skate positioned to contact the bottom surface of the ice to disengage a flotation arm contacting end at the completion of a forward travel cycle; wherein the flotation arm is secured to the rod for propelling the base across the bottom surface of the ice when the rod rotates upwardly with respect to the base, the rod having a first position extending downwardly from the base and a second upper position at an angle with respect to the first position, the flotation arm being constructed and arranged to engage and push against the bottom surface of the ice to propel the base as the first member rotates from the first position to the second position.