PRESENCE DETECTOR FOR A DOOR ASSEMBLY
First Claim
1. A presence detector for a door assembly including a door which closes a door entrance, the detector comprising:
- a transducer assembly mounted to the door assembly for emitting at least one ultrasound detecting beam adjacent the door entrance and for triggering a detecting signal indicative of a body located said adjacent the door entrance when the body intersects the at least one ultrasound detecting beam.
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Accused Products
Abstract
A presence detector for a door assembly which includes a door closing a door entrance is described herein. The detector includes a transducer assembly mounted to the door assembly for emitting at least one ultrasound detecting beam adjacent the door entrance and for triggering a detecting signal indicative of a body located adjacent the door entrance when the body intersects the at least one ultrasound detecting beam and a controller for receiving information indicative of a position of the door and for controlling the emission of the at least one detecting beam accordingly with the position of the door. The detector assembly operates in crossing, ranging or dual modes.
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Citations
37 Claims
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1. A presence detector for a door assembly including a door which closes a door entrance, the detector comprising:
a transducer assembly mounted to the door assembly for emitting at least one ultrasound detecting beam adjacent the door entrance and for triggering a detecting signal indicative of a body located said adjacent the door entrance when the body intersects the at least one ultrasound detecting beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A presence detector for a door assembly including a door which closes a door entrance, the detector comprising:
means for emitting at least one ultrasound detecting beam adjacent the door entrance and for triggering a detecting signal indicative of a body located said adjacent the door entrance when the body intersects the at least one ultrasound detecting beam.
Specification