Electronic door access control system

• US 10,169,935 B2
• Filed: 07/06/2017
• Issued: 01/01/2019
• Est. Priority Date: 03/01/2013
• Status: Active Grant

• Current Assignee: Yves Paquin
• Original Assignee: Yves Paquin
• Inventors: Paquin, Yves
• Primary Examiner(s): Casillashernandez, Omar
• Application Number:
  US15/642,849
• Publication Number:
  US 20170301159A1
• Time in Patent Office: 544 Days
• Field of Search: 340 523, 340 56, 340 562, 340 542, 29234116, 292201, 292144, 2922515
• CPC Class Codes: E05B 47/0047 Striker rotating about an axis parallel to the wing edge
• CPC Class Codes: G07C 2209/62 Comprising means for indicating the status of the lock
• CPC Class Codes: G07C 9/00174 Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys mechanical locks with electric permutation E05B49/00; arrangements for sensing or reading record carriers G06K7/00; electronic switching H03K17/00
• CPC Class Codes: G07C 9/00563 using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
• CPC Class Codes: G07C 9/0069 actuated in a predetermined sequence
• CPC Class Codes: G07C 9/20 involving the use of a pass

Abstract

A method for retrofitting a door comprising a key reader with a door control unit. The door control unit, key reader and the latch release mechanism may also be powered by a key comprising a power supply, the key also supplying a coded sequence to the door control unit.

Claims

1. An electronic door access control system for restricting access via a door comprising a lock mechanism having a latch bolt, the system comprising:

a key comprising a unique coded ID sequence, a key memory and a power source;

a key reader for reading said key;

a latch release mechanism; and

a door control unit comprising a controller, a real time clock, a door control unit memory and a door identifier;

wherein when said key is positioned proximate to said key reader, said power source provides power for operating said key reader, said latch release mechanism and said door control unit and the coded ID sequence is read by said key card reader and relayed to said door control unit and further wherein when the coded ID sequence matches one of said plurality of predetermined allowed coded ID sequences, said door control unit actuates said latch release mechanism, thereby allowing the door to be opened, and further wherein a time stamp and said door identifier is relayed to said key for storage in said key memory and further wherein said power provided by said power source is at a first voltage, wherein said latch release mechanism operates at second voltage greater than said first voltage, and further comprising an electronic circuit for increasing said first voltage to said second voltage wherein said door control unit actuates said latch release mechanism using said second voltage.

2. The system of claim 1, wherein the lock mechanism comprises a latch bolt and said latch release mechanism is configured for receiving the latch bolt and comprises a striker plate and a solenoid, and further wherein said door control unit actuates said latch release mechanism by activating the solenoid, thereby releasing said striker plate.

3. The system of claim 1, wherein said latch release mechanism comprises a solenoid comprising a shaft and a striker plate, and further wherein said door control unit actuates said latch release mechanism by applying said second voltage across said solenoid causing said shaft to move between a first position where said striker plate is engaged and a second position wherein said striker plate is disengaged.