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:
Jul. 29, 2003
Filed:
Mar. 19, 2002
Walter Parsadayan, Lake Forest, CA (US);
Elite Access Systems, Inc., Lake Forest, CA (US);
Abstract
A apparatus for recording information on power surges in an electrical or electronic system is disclosed. The apparatus has a gas discharge tube connected between an input line of the electrical or electronic circuit protected and ground. The gas discharge tube is set to activate at a predetermined voltage. The gas discharge tube has adjacent to it a light sensor that reacts to discharges in the tube and the sensor in conjunction with enabling circuitry generates a signal representative of discharge of the gas discharge tube. The signal produced provides information on the time, magnitude and duration of discharges in the gas discharge tube which are in turn representative of the power surge experienced by the system.