The Chamberlain Group, Inc.

The Chamberlin Group, Inc.

David Stafford

Eric J Robb

William George Gioia

Robert S Study, Iii

Robert S Study

Robert Study

Methods and apparatus for controlling a barrier movement operator having a timer-to-close feature are disclosed. The methods and apparatus include arrangements for conveniently inhibiting and re-activating the timer-to-close feature and for providing a mid-stop position during movement toward the closed position. Additionally, the embodiments include methods and apparatus for reversing barrier operation.

Barrier movement operator including time to close feature

Barrier movement operator including direction switch feature

A movable barrier operator having a microprocessor () or other programmable platform will automatically work in a safe and appropriate manner both with and without safe-operation sensors (). Once a safe-operation sensor is detected, the operator will thereafter function in a fashion that requires the continued presence of such sensor. In one embodiment, the operator state can be purposely reset to the initial operating state.

Automatic sensing of safe-operation sensor apparatus and method

Barrier movement operator including timer to close feature

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Harris, TX, United States of America

David Stafford