Blower with intake closure
AssigneeMTD Products Inc
InventorsPeter J. Buchanan, Erik Krueger
Life of this patent
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Abstract
A blower includes a frame, a surface engaging wheel attached to the frame and a power source attached to the frame. An impeller housing is also attached to the frame, and the impeller housing defines an intake opening. The impeller housing surrounds an impeller that is rotatably connected to the power source. An exhaust chute is attached to the impeller housing. A selectively closeable aperture structure is attached to the intake opening. In further examples, the selectively closeable aperture is a pair of rotatable plates both including radial slots or an iris blade assembly. In other examples, the exhaust chute is rotatable or the impeller housing is rotatable.
Claims20
A blower, said blower comprising:
- a frame;
- a surface engaging wheel attached to said frame;
- a power source attached to said frame;
- an impeller housing attached to said frame, said impeller housing defining an intake opening;
- an impeller rotatably connected to said power source and positioned within said impeller housing;
- an exhaust chute attached to said impeller housing;
- and
- a selectively closeable aperture structure attached to said intake opening;
- and
- an actuator for selectively moving said selectively closeable aperture structure between a fully open position, a fully closed position, or a position between said open and said closed position, wherein said actuator is a gear motor.
Dependencies are inferred from the claim text.