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:
May. 13, 2003
Filed:
Apr. 24, 2001
Applicant:
Inventors:
Benjamin Y. H. Liu, North Oaks, MN (US);
Daryl L. Roberts, Blaine, MN (US);
Virgil A. Marple, Maple Plain, MN (US);
Francisco J. Romay, Vadnais Heights, MN (US);
Assignee:
MSP Corporation, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 1/00 ;
U.S. Cl.
CPC ...
G01N 1/00 ;
Abstract
A sampler for removing a sample of gas from a flue or stack utilizes virtual impactor principles, together with a gas jet ejector to insure that the surfaces are kept free of particles. The gas that is, discharged from the sampler thus is not changed in character by contact with particles that may adhere to surfaces of the sampler.