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. 11, 2006
Filed:
Aug. 12, 2003
Applicants:
Saulius Trakumas, Pittsburgh, PA (US);
Peter M. Hall, Venetia, PA (US);
Inventors:
Saulius Trakumas, Pittsburgh, PA (US);
Peter M. Hall, Venetia, PA (US);
Assignee:
SKC, Inc., Eighty Four, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 1/24 (2006.01); G01N 1/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
An air sampler is designed for a predetermined flow rate. The air flow is admitted to at least two impactors operating in parallel. Preferably the inlet nozzles and the outlet orifices of each impactor are sized to achieve predetermined cut-off sizes of particles; preferably the composite curve of all the impactors will mimic a predetermined particle sampling efficiency curve.