Single stage snowthrower

Details Single stage snowthrower Single stage snowthrower

E - Fixed Constructions

01

H

262/19

E01H 5/09 (2006.01) E01H 5/04 (2006.01)

Patent

CA 1254239

Abstract An improved single stage snowthrower (2) in- cludes an open front portion (14) having a rotatable im- peller (30) contained therein. Impeller (30) contains at least one outwardly extending paddle (32) having a complex curved shape. Paddle (32) includes a central snowthrowing section (34) which is curved forwardly from its midpoint to each side thereof to be concave with this central section (34) extending over at least the middle 50 percent of the entire paddle's length. Iwo end sections (36) fill out the remaining length of paddle (32) and are shaped to function as augers for moving a relatively small volume of snow inwardly onto the central snowthrowing section (34). Improved impeller (30) can be used with an inverted funnel-shaped collecting chamber (22) located in the rear all (18) of front portion (14) of snowthrower (2). Collecting chamber (22) is sized and shaped to approximate the size and shape of the inwardly tapered stream which is thrown off central section (34).

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