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:
Oct. 28, 2014
Filed:
Feb. 26, 2009
Applicants:
David W. Sickenberger, Bel Air, MD (US);
Richard D. Sickenberger, Silver Spring, MD (US);
Inventors:
David W. Sickenberger, Bel Air, MD (US);
Richard D. Sickenberger, Silver Spring, MD (US);
Assignee:
The United States of America as Represented by the Secretary of the Army, Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/48 (2006.01); G01J 1/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for detecting biological aerosols using a photon counting technique to determine the presence of particles is described. A Schmitt trigger is used to prevent over counting of particle events and for greater stability and noise immunity. An alarm determination is made using time-based statistical data derived from the observed fluorescent and scattered photon data.