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:
Nov. 03, 1992
Filed:
May. 31, 1991
Benjamin Y Liu, North Oaks, MN (US);
MSP Corporation, Minneapolis, MN (US);
Abstract
An aerosol generator used to produce, selectively and rapidly, an aerosol that has a specific particle size and is at a known specific concentration. The generator comprises a plurality of aerosol material atomizers that can be selectively used to obtain different atomized aerosol particles that results in different size when combined with the output of a particle seed atomizer. Particles can be selectively operated to provide, quickly and conveniently, a range of individual particle sizes. The seed atomizer output is mixed with the aerosol atomizer output and passed through a unique, compact heating section for heating the mixture in a manner to provide a high flow rate with low pressure drop. The fluid is passed through a condenser to condense known size particles in the fluid stream, which then can be used as desired, for example to test the efficiency of filters.