Key with a built-in light

• US 5,541,817 A
• Filed: 06/20/1995
• Issued: 07/30/1996
• Est. Priority Date: 06/20/1995
• Status: Expired due to Fees

• Current Assignee: Chien-Lung Hung
• Original Assignee: Chien-Lung Hung
• Inventors: Hung, Chien-lung
• Primary Examiner(s): Husar, Stephen F.
• Application Number:
  US08/492,707
• Time in Patent Office: 406 Days
• Field of Search: 362/100, 362/116, 362/234, 362/253, 362/157, 362/208, 362/800
• US Class Current: 362/116
• CPC Class Codes: E05B 17/103 on keys E05B17/106 takes precedence; attached to key rings A44B15/005; on key bags or wallets A45C11/32
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

A key with a built-in light includes a blade, a mercury battery, a plate integrally formed with the blade having a recess with a conductive sheet in a bottom of the recess for receiving the mercury battery and a tongue extending over the recess but not in contact with the mercury battery when the battery is received, a conductive strip formed under the tongue, and a light, received by the plate and directed in a distal tip of the blade, having two wires respectively connected with the conductive sheet in the recess and the conductive strip under the tongue.

Claims

1. A key with a built-in light, comprising:

a blade;

a mercury battery;

a plate integrally formed with the blade and having a recess with a conductive sheet in a bottom of the recess for receiving the mercury battery and a tongue extending over the recess but not in contact with the mercury battery when the mercury battery is received;

a conductive strip formed under the tongue; and

a light, received by the plate and directed to a distal end of the blade, having two wires respectively connected with the conductive sheet in the recess and the conductive strip under the tongue.

2. The key of claim 1 wherein said recess has an arcuate entrance.

3. The key of claim 1 wherein said light is a light emitting diode.