Apparatuses and methods for controlling rotational direction...

Details Apparatuses and methods for controlling rotational direction... Apparatuses and methods for controlling rotational direction...

2006-08-04

2009-02-17

Ip, Paul (Department: 2837)

Electricity: motive power systems

Motor-reversing

Automatic and/or with time-delay means

C318S280000, C318S254100, C318S287000, C388S800000, C388S811000

Reexamination Certificate

active

07492112

ABSTRACT:
An apparatus is used for controlling a rotating direction of a fan. The apparatus comprises a power source, a signaling unit, a switching unit, and an activating module. The power source is used for supplying power for the apparatus. The signaling unit is used for generating direction-control signals. The switching unit is connected to the power source and the signaling unit, and used for controlling the switching unit to work. The activating module is connected to the switching unit and the fan, and used for driving the fan to selectively rotate in one of two opposite directions based on the direction-control signals. A method for driving the fan in the two directions is also disclosed.

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