Motorized barrier operator system for controlling a stopped,...

Details Motorized barrier operator system for controlling a stopped,... Motorized barrier operator system for controlling a stopped,...

2007-02-27

2007-02-27

Duda, Rina (Department: 2837)

Electricity: motive power systems

Motor-reversing

C318S283000, C318S286000, C318S466000, C318S443000, C049S026000, C049S028000

Reexamination Certificate

active

10829860

ABSTRACT:
A motorized barrier operator that moves a barrier between limit positions, includes a motor for moving the barrier between set limit positions. When the barrier is in a stopped, partially open position the operator implements at least a hybrid control sequence that employs either a four-phase logic or an open-only logic depending upon the status of a mode indicator. In the preferred embodiment the mode indicator is a time light that is activated upon receipt of a user command.

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