Remotely controlled door lock

• US 5,852,944 A
• Filed: 04/18/1997
• Issued: 12/29/1998
• Est. Priority Date: 04/18/1997
• Status: Expired due to Fees

• Current Assignee: Stephen C. Cohen
• Original Assignee: Stephen C. Cohen
• Inventors: Pechacek, Larry D., Collard, Thomas H. Jr.
• Primary Examiner(s): JAYNE, DARNELL M
• Application Number:
  US08/844,030
• Time in Patent Office: 620 Days
• Field of Search: 70/278, 70/279, 70/280, 70/107, 70/277, 70/256, 70/257, 292/144, 292/35, 292/36
• US Class Current: 70/278.7
• CPC Class Codes: E05B 2047/0007 with two or more electromagnets
• CPC Class Codes: E05B 47/0002 with electromagnets
• CPC Class Codes: E05B 47/0004 said core being linearly movable
• CPC Class Codes: E05B 47/026 the bolt moving rectilinearly
• CPC Class Codes: E05B 53/00 Operation or control of locks by mechanical transmissions, e.g. from a distance
• CPC Class Codes: E05B 59/00 Locks with latches separate from the lock-bolts or with a plurality of latches or lock-bolts
• CPC Class Codes: E05B 63/0004 Additional locks added to existing lock arrangements
• CPC Class Codes: Y10T 292/1021 Motor
• CPC Class Codes: Y10T 70/5226 Combined dead bolt and latching bolt
• CPC Class Codes: Y10T 70/7102 And details of blocking system [e.g., linkage, latch, pawl, spring]
• CPC Class Codes: Y10T 70/7113 Projected and retracted electrically

Abstract

A remotely controllable locking mechanism for a combination key-operated deadbolt lock and door knob latching lock for a door. A housing for the operating parts is inserted in a mortised pocket or cavity in the latch edge of the door. The electronics to operate the mechanism sends a signal to a receiver installed in the wall near the locks. Power is supplied to solenoids to simultaneously activate the locking and unlocking mechanisms of the deadbolt and the door knob latching lock. Manual key overrides are provided for the deadbolt and for the latch.

Claims

1. A remotely controllable locking mechanism for a combination key-operated deadbolt lock and latching lock comprising:

a housing;

a first locking solenoid mounted within said housing;

a second unlocking solenoid mounted within said housing;

a pivoting lever attached at a first end to said first locking solenoid, attached at a second end to said second unlocking solenoid, and pivotally attached at a mid-portion to said housing;

a bolting lever attached at a first end to said first locking solenoid, attached at a second end to a first end of a latch link wire, and attached at generally a mid-point to a first end of a bolt arm, said bolt arm adapted to be attached to a bolt rotation member of said deadbolt lock;

a direction changing link attached at a first end to a second end of said latch link wire and pivotally attached to said housing;

a latching lever pivotally attached to said housing and attached at a first end to a second end of said direction changing link and attached to a latch pull arm, said latch pull arm adapted to be attached to a latching member of said latching lock; and

a remote control unit for activating said first locking solenoid and said second unlocking solenoid to lock and unlock said deadbolt lock and said latching lock.

2. The locking mechanism of claim 1 wherein said bolt arm further comprises a spring member attached to a second end of said bolt arm between said bolt rotation member and said bolt arm.

3. The locking mechanism of claim 2 wherein said latch pull arm further comprises a latch pull extension attached at a first end to said latching lever and slidingly connected at a second end to a pull loop in a latch pull wire adapted to be attached to said latching member of said latching lock.

4. The locking mechanism of claim 3 further comprising:

a bolt arm guide attached to said housing; and

a latch pull arm guide attached to said housing.

5. The locking mechanism of claim 1 further comprising:

a bolt arm wedge affixed to said housing and cooperating with said bolt arm to enable said deadbolt lock to be unlocked with a key without remote activation of said solenoids.