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. 08, 1994
Filed:
Aug. 10, 1992
Applicant:
Inventors:
Richard K Morey, Tucson, AZ (US);
Donald R Chansky, Jr, Oracle, AZ (US);
Douglas J Wylie, Tucson, AZ (US);
Mark A Mormino, Tucson, AZ (US);
Joseph F Halik, IV, Tucson, AZ (US);
Assignee:
Alliedsignal Inc., Morris Township, Morris County, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250574 ; 356343 ; 356335 ;
Abstract
An optical particle counter generates a signal indicating an amount of radiation scattered by aerosols in a sample flow. Smoke can be discriminated from other aerosols in the sample flow by analyzing the AC component of the signal. Smoke has a much higher signal-to-noise ratio than that of larger particles such as dust and fog.