Patent ID: 8973823
Filing Date: 2015-03-10
Classification: G07C

Abstract:
1. Apparatus for use with an RFID proximity card and with a steel door and associated frame assembly, the door having a magnet assembly including a magnet and a first cylindrical portion and the frame assembly having a recess, said magnet assembly and recess arranged such that when the door is closed in the frame assembly, the magnet assembly confronts the recess, said recess being of the type provided to permit the mounting of a magnetic door contact in the frame assembly, the apparatus comprising: a sensor assembly including a magnetic door contact and a second cylindrical portion extending from said magnetic door contact, said sensor assembly located within said recess and configured to mount in the frame assembly such that a gap is formed between the magnet and said magnetic door contact when the door is closed in the frame assembly, said sensor assembly grippingly engaging said frame assembly and configured to produce a first signal when the RFID proximity card is presented to said sensor assembly in said gap formed between the magnet and said magnetic door contact when the door is closed in the frame assembly and configured to produce a second signal when the door is closed to bring the door magnet adjacent the sensor assembly and into alignment with the recess.