Excavating – Snow or ice removing or grooming by portable device – Motorized rotary excavating tool
Patent
1998-03-25
1999-10-19
Melius, Terry Lee
Excavating
Snow or ice removing or grooming by portable device
Motorized rotary excavating tool
37244, 37233, E01H 509
Patent
active
059668466
ABSTRACT:
An improved single stage snowthrower includes a housing with an open front portion, the housing including two side walls, a rear wall therebetween and a discharge chute. The rear wall includes deflecting ledges that angle upwardly toward the discharge chute, inwardly toward the center of the housing and forwardly toward the open front. The deflecting ledges provide both an inward and an upward component to snow travelling in the housing. The snowthrower also includes an impeller having axial ends and a radial edge. The impeller is comprised of two molded identical body sections that are joined about a shaft. Each body section includes a central portion, two end portions and a pair of helical portions with one helical portion between each end portion and the central portion. A portion of the radial edge of the impeller includes a shovel-like projection that is oriented in a direction extending laterally away from the impeller in the direction of rotation of the impeller.
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Alstad Knute
Bullis, Jr. Daniel R.
Harms Clarence L.
Raleigh Edward A.
Ariens Company
Melius Terry Lee
Pezzuto Robert
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