Obstruction sensing a signal transmitted across window
Obstruction sensing system for a gate
Obstruction sensor for electro-mechanically operated garage door
Opening/closing device
Overhead door sensor mounting bracket
Overhead door with dual safety-edge
Pneumatic door operator having novel pneumatic actuator and lock
Power window apparatus having improved safety device
Power window apparatus having safety unit
Power window apparatus with safety device
Power window device with safety device
Powered sliding door safety system
Protection system for automatically openable and closable door
Redundant sensing edge for a door for detecting an object in pro
Release mechanism for industrial doors
Resilient edges for power operated doors
Resilient edges for power operated doors
Retractable non-contact sensor system
Reversing apparatus for powered vehicle door systems
Reversing circuit for a powered closure