Invention Application
US20050001573A1 Non-contact safety system 审中-公开
非接触式安全系统

Non-contact safety system
Abstract:
The present invention discloses a non-contact door safety system comprising two spring-loaded legs on either side of the door and a photo-optic system that creates a beam the desired distance in front of the leading edge of the door. The beam can be considered an imaginary leading edge of the door.
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