Abstract: An apparatus and method to adapt an automatic door motor operator utilizing a photoelectric eye generating a digital pulse train of known amplitude, periodicity and duty cycle to a control signal created through the opening or closure of a moving door edge sensing device or strip which closes or opens when compressed. The invention relates to safety edges used on motorized doors to provide a conversion means to allow a sensing edge switch on the leading edge of a moving door to control a door operator control unit which expects to receive a control signal of a predetermined amplitude, period and duty cycle normally generated through use of a photo eye used to monitor obstructions within the path of the moving door. The invention allows field replacement of an obstruction protecting photo-eye sensor with an safety edge switch type device utilizing the existing door operator and the in-place power source.

Abstract: A sensing edge for providing a signal to a controller indicating that a forward edge of a door is obstructed during operation includes an elongated sheath and first and second end plugs. The elongated sheath is mounted to the forward door edge and has a first end, second end and first cavity connecting the ends. First and second spaced apart electrically conductive materials are disposed within the elongated sheath. The first end plug includes an inner end having first engaging structures positioned within the first cavity in an assembled configuration and an outer end having a first depression for housing an electronic component. The electronic component is electrically coupled to the electrically conductive materials. The second end plug includes an inner end having a sensing component and second engaging structures positioned within the first cavity in an assembled configuration. The sensing component is electrically coupled to the electrically conductive materials.

Abstract: Apparatus and method to adapt a automatic door motor operator utilizing a photoelectric eye generating a digital pulse train of known amplitude, periodicity and duty cycle to a control signal created through the opening or closure of a moving door edge sensing device or strip which closes or opens when compressed. The invention relates to safety edges used on motorized doors to provide a conversion means to allow a sensing edge switch on the leading edge of a moving door to control a door operator control unit which expects to receive a control signal of a predetermined amplitude, period and duty cycle normally generated through use of a photo eye used to monitor obstructions within the path of the moving door. The invention allows field replacement of an obstruction protecting photo-eye sensor with an safety edge switch type device utilizing the existing door operator and the in-place power source.

Abstract: A sensing edge for providing a signal to a controller indicating that a forward edge of a door is obstructed during operation includes an elongated sheath and first and second end plugs. The elongated sheath is mounted to the forward door edge and has a first end, second end and first cavity connecting the ends. First and second spaced apart electrically conductive materials are disposed within the elongated sheath. The first end plug includes an inner end having first engaging structures positioned within the first cavity in an assembled configuration and an outer end having a first depression for housing an electronic component. The electronic component is electrically coupled to the electrically conductive materials. The second end plug includes an inner end having a sensing component and second engaging structures positioned within the first cavity in an assembled configuration. The sensing component is electrically coupled to the electrically conductive materials.

Abstract: A wireless, automatic door obstruction detection system for protecting a motorized door or gate by signaling various hazardous conditions and reacting to said conditions by signaling control means. The invention utilizes wireless infrared emitter, receiver and controller apparatus. Infrared pulse timing data is sent as pulse repetition rate changes depending upon battery condition. In a preferred embodiment of the invention, the photoelectric transmitter emits timed pulse groups to present control information differentiating between a good battery and a low battery condition in the wireless transmitter. A wireless photoelectric transmitter extends the time period between pulse groups to indicate a low battery condition. A low battery condition signaling thereby presents a low power drain condition allowing for an extended period of low battery condition signaling.