Emergency safety light

• US 5,473,517 A
• Filed: 01/23/1995
• Issued: 12/05/1995
• Est. Priority Date: 01/23/1995
• Status: Expired due to Term

• Current Assignee: Stephen E. Blackman
• Original Assignee: Stephen E. Blackman
• Inventors: Blackman, Stephen E.
• Primary Examiner(s): Husar, Stephen F.
• Application Number:
  US08/377,046
• Time in Patent Office: 316 Days
• Field of Search: 362/20, 362/95, 362/183, 362/200, 200/310, 200/312, 200/317
• US Class Current: 362/95
• CPC Class Codes: F21S 9/022 Emergency lighting devices
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: Y02B 20/00 Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
• CPC Class Codes: Y10S 362/802 Position or condition responsive switch

Abstract

The present invention provides a housing for an emergency light source which is electrically connectable to a conventional light switch. The housing replaces a conventional switch plate and has at least one opening for receiving the switch actuator of the light switch. The replacement housing includes wires for electrical connection to the light switch and is divided into upper and lower housing sections, wherein the upper section includes a battery compartment, a printed circuit board compartment, and an opening to receive the switch actuator. The lower housing section includes a compartment for receiving a compact fluorescent lamp, reflectors, and a diffuser cover. The printed circuit board includes a recharger for the batteries; a power-sensing device for sensing power interruption; an ON/OFF relay switch which is turned on in response to a power failure and actuates the emergency light source; a LED charging indicator light to show that the batteries are charging; a manual test switch; and a transformer, a fluorescent ballast, and starter components for the fluorescent lamp.

Claims

1. A housing for an emergency light source which is electrically and mechanically connectable to a conventional light switch, comprising:

a) a housing for replacement of a conventional switch plate having at least one opening for receiving the switch actuator of said light switch;

b) a first compartment in said housing for receiving batteries;

c) a second compartment in said housing for receiving an emergency light source adapted to be connected to said batteries;

d) means for sensing the loss of electrical power to said light switch and, in response thereto, for actuating said emergency light source; and

e) means for electrically connecting said housing to said light switch.

2. A housing in accordance with claim 1, wherein said first compartment is adapted to receive four "AA" batteries.

3. A housing in accordance with claim 1, wherein said second compartment is adapted to receive a 5-watt, 7-watt, or 9-watt fluorescent lamp as said emergency light source.

4. A housing in accordance with claim 1, wherein said second compartment is adapted to receive at least one incandescent lamp as said emergency light source.

5. A housing in accordance with claim 1, further including a PC board containing said sensing means.

6. A housing in accordance with claim 1, wherein said means for electrically connecting said housing to said light switch includes a pair of electrical wires.

7. A housing in accordance with claim 1, wherein said sensing means includes power-interruption detector means connected to an on/off relay switch, wherein said power-interruption detector means detects the loss of electrical power to said light switch and operates to turn on said relay switch.

8. A housing in accordance with claim 1, further including a charging means for recharging said batteries.

9. A housing in accordance with claim 1, further including a charging indicator light for indicating that said batteries are recharging.

10. A housing in accordance with claim 1, further including a manual test switch for testing the functioning of said emergency light source.

11. A housing in accordance with claim 1, wherein said housing includes a switch plate cover having at least one light switch opening.

12. A housing in accordance with claim 1, wherein said housing includes a diffuser cover for diffusing light from said light source.

13. A housing in accordance with claim 1, wherein said housing includes a compartment for receiving a printed circuit board.

14. A housing in accordance with claim 1, wherein said housing further includes at least one metallized reflector for reflecting light from said light source.

15. A housing for an emergency light source which is electrically and mechanically connectable to a conventional light switch, comprising:

a) a housing for replacement of a conventional switch plate having at least one opening for receiving the switch actuator of said light switch;

b) means for connecting said housing to a remote power source;

c) a compartment in said housing for receiving at least one emergency light source adapted to be connected to said power source;

d) means for sensing the loss of electrical power to said light switch and, in response thereto, for actuating said emergency light source; and

e) means for electrically connecting said housing to said light switch.