U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Emergency safety light

Patent 5473517 Issued on December 5, 1995. Estimated Expiration Date: Icon_subject January 23, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Lighting devices
Patent #: 4001803
Issued on: 01/04/1977
Inventor: Lombardo

Combination switch light and rechargeable flashlight
Patent #: 4611264
Issued on: 09/09/1986
Inventor: Bradley

Plug-in emergency light fixture Patent #: 4631649
Issued on: 12/23/1986
Inventor: McCue ,   et al.

Inventor

Application

No. 377046 filed on 01/23/1995

US Classes:

362/95, WITH SWITCH PLATE OR SOCKET200/312, Having additional indicating means200/317, Light visible through housing362/20, AUTOMATIC SUBSTITUTION OF POWER SUPPLY OR LIGHT SOURCE362/183Rechargeable electrical source of with external connections

Examiners

Primary: Husar, Stephen F.

Attorney, Agent or Firm

International Class

F21V 033/00

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.

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