Snow removal machine

Excavating – Snow or ice removing or grooming by portable device – Motorized rotary excavating tool

Reexamination Certificate

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Details

C037S256000, C037S259000, C037S233000

Reexamination Certificate

active

07121021

ABSTRACT:
A snow removal machine of this invention has a blower provided in a blower housing for throwing up snow collected by an auger toward a chute. The blower has a plurality of supporting members provided on a drive shaft for rotating the auger and the blower and a plurality of throwing-up blades attached to the respective supporting members. The throwing-up blades are elastically deformable. A vacant space is formed between the supporting members and the throwing-up blades. The vacant space allows deformation of the throwing-up blades in a direction opposite to the rotation direction of the blower.

REFERENCES:
patent: 1789874 (1931-01-01), Lilly
patent: 2307412 (1943-01-01), Lewis
patent: 2549043 (1951-04-01), Arthur
patent: 3015172 (1962-01-01), Parnas
patent: 3805421 (1974-04-01), Kamlukin et al.
patent: 4158923 (1979-06-01), Steiner et al.
patent: 4360983 (1982-11-01), Krug
patent: 4765073 (1988-08-01), Cloutier
patent: 5127174 (1992-07-01), Takeshita
patent: 3436562 (1986-04-01), None
patent: 03137311 (1991-06-01), None

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