Electronic locking system

• US 6,615,625 B2
• Filed: 01/25/2000
• Issued: 09/09/2003
• Est. Priority Date: 01/25/2000
• Status: Expired due to Term

• Current Assignee: Videx Incorporated
• Original Assignee: Videx Incorporated
• Inventors: Davis, Paul R.
• Primary Examiner(s): Gall, Lloyd A.
• Application Number:
  US09/491,488
• Publication Number:
  US 20020134120A1
• Time in Patent Office: 1,323 Days
• Field of Search: 702/782, 702/783, 702/791, 702/787, 702/83, 702/831, 703/89, 704/16, 704/17, 704/21, 703/86
• US Class Current: 70/278.3
• CPC Class Codes: E05B 11/02 before the wing is locked
• CPC Class Codes: E05B 17/2092 Means responsive to tampering or attack providing additional locking for safes E05B65/0082
• CPC Class Codes: E05B 2047/0058 by batteries
• CPC Class Codes: E05B 47/0004 said core being linearly movable
• CPC Class Codes: E05B 47/063 with a rectilinearly moveable blocking element
• CPC Class Codes: G07C 2009/00634 Power supply for the lock
• CPC Class Codes: G07C 2009/00761 with data transmission performed by connected means, e.g. mechanical contacts, plugs, connectors
• CPC Class Codes: G07C 2209/62 Comprising means for indicating the status of the lock
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks
• CPC Class Codes: Y10T 70/7079 Key rotated [e.g., Eurocylinder]
• CPC Class Codes: Y10T 70/7102 And details of blocking system [e.g., linkage, latch, pawl, spring]
• CPC Class Codes: Y10T 70/7136 Key initiated actuation of device
• CPC Class Codes: Y10T 70/7751 With ball or roller
• CPC Class Codes: Y10T 70/7768 Key-removal preventing
• CPC Class Codes: Y10T 70/7915 Tampering prevention or attack defeating

Abstract

An electronic locking system comprises a cylinder housed within and rotatable with respect to a shell. A key has a power supply. At least one of the key and the cylinder is capable of generating a signal when the key is electrically connected with the cylinder. An electrically powered locking mechanism is housed within the cylinder and includes a lock member moveable between an open position and a locked position. The lock member in the locked position interferes with movement of the cylinder. A power source is connected to the locking mechanism in response to the signal. The locking mechanism allows movement of the lock member from the locked position to the open position in response to the signal so that the cylinder may be rotated within the shell. The cylinder further includes an interfering member that resists movement of the locking member. In addition, a biasing mechanism urges the cylinder toward a home position when the cylinder is rotated away from the home position.

Claims

1. An electronic locking system, comprising:

(a) a cylinder housed within and rotatable with respect to a shell;

(b) a key;

(c) at least one of said key and said cylinder being capable of generating a signal when said key is electrically connected with said cylinder;

(d) an electrically powered locking mechanism in said cylinder including a lock member movable between an open position and a locked position, said lock member in said locked position interfering with rotation of said cylinder with respect to said shell; and

(e) an anti-tamper mechanism, said anti-tamper mechanism selectively resisting movement of said lock member in response to longitudinal movement of said cylinder.

2. The electronic locking system of claim 1 wherein said locking mechanism further comprises an interfering member selectively interfering with movement of said lock member.

3. The electronic locking system of claim 1 further comprising a biasing mechanism urging said cylinder toward a home position when said cylinder is rotated away from said home position.

4. The electronic locking system of claim 1 further comprising a key retention mechanism located at least partially within said cylinder that retains said key when said cylinder is rotated past a home position.

5. The electronic locking system of claim 1 wherein said locking mechanism is rotatable in unison with said cylinder when said lock member is in said open position.