IP Library Granted Patent US 7,367,683
Granted Patent B2
US 7,367,683 · App. 10/906,884 · Granted May 6, 2008

Illuminating mechanism for a lock

Assignee: Master Lock Company LLC
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Quick Facts
Patent No.
US 7,367,683
App. No.
10/906,884
Granted
May 6, 2008
Kind
B2
Abstract

A lock including an illuminating device which is actuated by the rotation of a lock dial produces an illumination event. The illumination event provides sufficient light on the lock such as to allow easier operation of the lock in areas of inadequate light. The lock may include a piezo device which creates electrical current to light one or more light emitting diodes for a predetermined duration of time.

Claims (27)

1. A lock comprising:

a lock body;

a lock dial coupled to said lock body;

an illuminating mechanism disposed within said lock dial; and

a piezo device affixed to the lock dial;

wherein the illuminating mechanism and piezo device are configured to illuminate the lock dial in response to movement of the lock dial relative to the lock body.

2. The lock of claim 1 , wherein said lock dial is comprised of an opaque material and one or more semi-transparent materials.

3. The lock of claim 2 , wherein said lock dial includes numbers and number markings comprised of said one or more semi-transparent materials.

4. The lock of claim 1 , wherein said illuminating mechanism includes one or more light emitting diodes.

5. The lock of claim 1 further comprising a reflective surface located such that one or more light emitting diodes are located between the reflective surface and an inner surface of said lock dial.

6. The lock of claim 1 , wherein said piezo device produces a charge when said lock dial is rotated relative to said lock body.

7. The lock of claim 1 , wherein said illuminating mechanism includes one or more field effect transistors, one or more resistors and one or more capacitors.

8. The lock of claim 7 , wherein said one or more resistors determine the rate of discharge of one or more of said capacitors, thereby determining the duration of an illumination event.

9. A lock comprising:

a lock body;

a lock dial coupled to said lock body;

a piezo device that generates electrical current that is used to light one or more light emitting diodes when said lock dial is rotated relative to said lock body; and

at least one piezo wiper which includes one or more piezo wiper springs that brush against said piezo device to produce a voltage signal.

10. A lock comprising:

a lock body including a locking mechanism;

a lock dial coupled to said lock body;

a piezo device connected to a dial body;

a piezo wiper including one or more piezo washer springs; and

one or more light emitting diodes; wherein rotation of the lock dial produces an illumination event, wherein said one or more light emitting diodes illuminate a portion of said lock.

11. The lock of claim 10 , wherein said lock dial comprises an opaque material and one or more semi-transparent materials, and wherein said one or more light emitting diodes create said illumination event by emitting light through said one or more semi-transparent materials.

12. The lock of claim 10 further comprising a means for predetermining the duration of said illumination event.

13. The lock of claim 10 wherein said piezo device, said piezo wiper and said one or more light emitting diodes are disposed within said lock dial.

Assignments (2)
CHANGE OF NAME Recorded Dec 6, 2006
From: MASTER LOCK COMPANY
To: MASTER LOCK COMPANY LLC
Reel/Frame 018589/0724 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 17, 2005
From: MARCELLE, JESSE; MEEKMA, GLENN; LESLIE, VINCE; ROHDE, CHRIS
To: MASTER LOCK COMPANY
Reel/Frame 016248/0580 →
Continuity (2)
Provisional Application 6052120900 · Mar 11, 2004
Related Publication 20050201076A1 · Sep 15, 2005