Barrier gate arm

Barrier laminate and method for sealing gaps in building...

Barrier movement control for mid-travel barrier movement start

Barrier movement control safety method and apparatus

Barrier movement operator having service reminders

Barrier movement operator having service reminders

Barrier movement operator human interface method and apparatus

Barrier movement operator including timer to close feature

Barrier movement operator including timer to close feature

Barrier movement operator speed control

Barrier movement operator with controlled power outlet

Barrier movement position sensing

Barrier movement system including a combined keypad and...

Barrier operator controller with optical limit switches

Barrier operator controller with user adjustable force setpoint

Barrier operator system and method with obstruction detection

Barrier operator with rack and pinion drive and coupling...

Barrier plug for a bore

Barrier plug for dynamic rock stabilizing fixture

Barrier post for access roads, parking areas and parking stalls