Rite-hite Holding Corporation

James Pelegrin

Ryan P Beggs

Michael Sivill

Perry W Knutson

Nicholas J Casey

Christopher Saleh

Derek Lewan

Quinn Mast

Charles Runde

Methods and apparatus to monitor and/or adjust operations of doors are disclosed. An apparatus includes processor circuitry to execute instructions to: monitor a position of a door panel associated with a door system; detect when a beam from a photo-eye sensor associated with the door system is in an unexpected non-triggered state based on the position of the door panel; and generate an alert or notification indicating a significance of the beam in the unexpected non-triggered state.

Methods and apparatus to monitor and/or adjust operations of doors

An example apparatus includes a sensor to detect a lateral edge of a door curtain within a guide of a door, and a controller to identify when the door curtain transitions from an operational state to a breakaway state based on a signal from the sensor, the operational state corresponding to when the lateral edge of the door curtain is enclosed by the guide as the door curtain moves between open and closed positions, and the breakaway state corresponding to when a portion of the lateral edge of the door curtain below an upper end of the guide breaks away from the guide.

Apparatus and methods for door curtain breakaway detection

Growing community of inventors

Dubuque, IA, United States of America

James Pelegrin