Method and apparatus for driving a roller shutter door

Details Method and apparatus for driving a roller shutter door Method and apparatus for driving a roller shutter door

2009-03-24

2011-12-06

Benson, Walter (Department: 2837)

Flexible or portable closure, partition, or panel

Automatic control

C160S007000, C160S008000, C318S452000

Reexamination Certificate

active

08069896

ABSTRACT:
The present invention is a method and apparatus for driving a roller-shutter door having a drive mechanism. The method comprises the activation of a circuit in response to an external stimuli to a switch. This actuates a timer and raises a timing bar. A cable passes across the timing bar and is connected to the switch on one end and to a solenoid on a second end. The cable passes through a top portion of a rocker arm assembly having a one-way bearing. The solenoid is actuated as a result of the raising of the timing bar; and activates the one-way bearing to cause the door to be raised to a pre-set position for a pre-set period of time. To reverse the door, the timer bar is dropped after the lapse of the pre-set period of time. The solenoid is re-activated and reverses the one-way bearing.

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