Excavating – Snow or ice removing or grooming by portable device – Combined or convertible
Patent
1993-11-03
1994-10-25
Bagnell, David J.
Excavating
Snow or ice removing or grooming by portable device
Combined or convertible
56 169, 56295, E01H 509, A01D 3473
Patent
active
053576985
ABSTRACT:
An apparatus for clearing snow and other particulate material comprises one or a pair of arms mounted for rotation within the housing of a conventional rotary lawnmower or equivalent, as a substitute for the conventional grass-cutting blade. This enables the lawnmower to be used for clearing snow during the winter, when it cannot be used for cutting grass. The rotatable arm comprises an elongated blade member having upper and lower vanes extending upwardly and downwardly respectively from the blade member. The lower vanes act as knives to cut the snow or material to facilitate removal. The lower vanes are inclined obliquely to the blade axis so as to direct material that is below the blade member inwardly towards the axis of rotation. The upper vanes are inclined obliquely to a blade axis extending radially outwardly from the axis of rotation to direct material above the blade outwardly through a discharge opening of the housing. Inclination of the lower vanes with respect to the blade axis is in an opposite direction to the corresponding inclination of the adjacent upper vanes.
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