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:
Jan. 04, 2022
Filed:
Aug. 24, 2021
Applicant:
Richard A. Brandt, New York, NY (US);
Inventor:
Richard A. Brandt, New York, NY (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 15/08 (2006.01);
U.S. Cl.
CPC ...
G01N 15/0806 (2013.01); G01N 15/082 (2013.01); G01N 2015/084 (2013.01);
Abstract
A face mask or a sample of air-permeable sheet material thereof is moved through a chamber containing a stationary particle-imbedded aerosol. A drive mechanism is preferably operatively connected to a mask holder or supporting shuttle for sliding the shuttle and the mask material along a linear path or a circular path. An aerosol supply and a photodetector are connected to a container that defines the chamber and communicate with the chamber.