The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 1995
Filed:
Aug. 24, 1993
Applicant:
Inventors:
Donald E Derrick, Hanover, NH (US);
Hollis A Harris, Sonoma, CA (US);
Robert H Marion, Etna, NH (US);
William A Tower, Canaan, NH (US);
L Christopher Towle, Maulden, GB;
Assignees:
Loctite Luminescent Systems, Inc., Lebanon, NH (US);
The MTL Instruments Group plc, Bedfordshire, GB;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V / ; F21S / ;
U.S. Cl.
CPC ...
362 84 ; 362310 ;
Abstract
A method for illuminating explosive, flammable, and other hazardous environments. The method employs electroluminescent lights heaving controlled dielectric strength and capacitance, which when matched with the low current and voltage from an intrinsically safe power supply, and the controlled capacitance of each lighting circuit, produces an emergency lighting system which is both safe and effective.