Snow thrower impeller

Details Snow thrower impeller Snow thrower impeller

1980-10-15

1982-11-30

Burr, Edgar S.

Excavating

Snow or ice removing or grooming by portable device

Vehicle mount with obstacle responsive trip, or yieldable tool

366312, 37259, E01H 500

Patent

active

043609830

ABSTRACT:
A hand operated snow thrower has an impeller with blade mounts that allow the blades to be easily removed, yet effectively retained with the blade mount. The impeller includes a rigid rotor that is rotatably driven by the snow thrower. The rotor has three blade mounts, each blade mount having a blade supporting surface. The blade supporting surface has an inner edge and an outer edge. A retainer extends over the inner edge of the supporting surface to define a channel. A slot extends from the supporting surface rearwardly into the rotor. The flexible blade that is mounted to the impeller has a flange that is received within the slot. The blade has an inner edge that is received within the channel.

REFERENCES:
patent: 2307412 (1943-01-01), Lewis
patent: 2526367 (1950-10-01), Kaltenbach et al.
patent: 2549043 (1951-04-01), Arthur
patent: 3021661 (1962-02-01), Couberly
patent: 3359661 (1967-12-01), Speiser et al.
patent: 3452460 (1969-07-01), Cope et al.
patent: 3805421 (1974-04-01), Kamlukin et al.
patent: 4190972 (1980-03-01), Berner

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