The Toro Company

Exmark Manufacturing Company, Inc.

Nicholas J Wersal

Nathan J Friberg

Derek S Duchscherer

Philip C Dretzka

Philip G Stalpes

Ryan J Volovsek

Brian M Clemens

David J Martin

Chris A Wadzinski

Daniel A Phipps

Aaron Y Curtis

Christina O Howell

Base station

Snowthrower

A self-propelled snowthrower wherein, in one embodiment, drive members on each side of the snowthrower provide variable speed propulsion. A transmission that delivers power to the drive members may be adapted to de-clutch one of the two drive wheels when the ground speed of that wheel exceeds the driving speed of the transmission. In other embodiments, the snowthrower includes a rotor having a snow ejection surface forming a negative rake angle. Yet other embodiments include a chute rotation control mechanism that permits manual discharge chute rotation via one-handed input.

Rotor and rotor housing for a snowthrower

Snowthrower power head

A self-propelled, single-stage snowthrower wherein, in one embodiment, drive members on each side of the snowthrower provide variable speed propulsion. A transmission that delivers power to the drive members may be adapted to de-clutch one of the two drive wheels when the ground speed of that wheel exceeds the driving speed of the transmission. In other embodiments, the snowthrower includes a rotor having a snow ejection surface forming a negative rake angle. Yet other embodiments include a chute rotation control mechanism that permits manual discharge chute rotation via one-handed input.

Self-propelled, single-stage snowthrower

Growing community of inventors

St. Louis Park, MN, United States of America

Nicholas J Wersal