Self dust-off apparatus and method thereof

Details Self dust-off apparatus and method thereof Self dust-off apparatus and method thereof

2007-01-09

2007-01-09

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Motor-reversing

C353S057000, C353S058000, C353S060000, C353S061000, C353S085000, C353S122000

Reexamination Certificate

active

11095582

ABSTRACT:
A self dust-off apparatus includes a fan and a controller. The fan, which can be driven to rotate clockwise or counterclockwise, is installed in a projector. The controller is employed to direct the rotational direction (clockwise or counterclockwise) of the fan. In the normal operation, the fan rotates to guide the air from an inlet to an outlet. In the dust-off operation, the fan rotates along reverse direction to guide air inversely in relation to the normal operation so that dust is taken out of the projector easily.

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