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:
Mar. 27, 2001
Filed:
Dec. 23, 1998
Vladimir A. Danilychev, Irvine, CA (US);
Other;
Abstract
A smoking detection device comprising a smoke sensor for generating an electrical signal in response to the detection of smoke, and an optical sensor for generating an electrical signal in response to the detection of ultraviolet radiation in a prescribed range. The smoking detection device may further comprise an alarm unit which is electrically connected to the smoke and optical sensors for generating an alarm signal in response to any one of the electrical signals generated by the smoke and optical sensors. The optical sensor is configured to sense ultraviolet radiation in a spectral range of from about 185 nanometers to about 260 nanometers, and of an intensity in a range of about 1 picowatt per square centimeter to about 1 nanowatt per square centimeter.