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:
Feb. 20, 2007
Filed:
Jan. 24, 2005
Alireza Shekarriz, Lake Oswego, OR (US);
Robert Reed Moore, Ridgefield, WA (US);
Joseph G. Birmingham, Vancouver, WA (US);
Alireza Shekarriz, Lake Oswego, OR (US);
Robert Reed Moore, Ridgefield, WA (US);
Joseph G. Birmingham, Vancouver, WA (US);
Other;
Abstract
A virtual impactor device having reduced fouling includes injection ports within the separation zone to redirect particles that otherwise tend to impact the walls of the separation zone and produce fouling. The virtual impactor device preferably also includes an acceleration zone having concave and convex sections, which reduces fouling in that area. The virtual impactor device can be combined with various downstream components such as collectors, atomizers and various analytical devices.