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:
Oct. 02, 2012
Filed:
Feb. 17, 2009
Hai Zhang, Plymouth, MN (US);
Will Zanto, Blaine, MN (US);
Qian Shi, Blaine, MN (US);
Greg Olson, Shoreview, MN (US);
Phillip Poeschl, Maplewood, MN (US);
Vincent Majkowski, Maple Grove, MN (US);
Stuart J. Olstad, Plymouth, MN (US);
Hai Zhang, Plymouth, MN (US);
Will Zanto, Blaine, MN (US);
Qian Shi, Blaine, MN (US);
Greg Olson, Shoreview, MN (US);
Phillip Poeschl, Maplewood, MN (US);
Vincent Majkowski, Maple Grove, MN (US);
Stuart J. Olstad, Plymouth, MN (US);
TSI, Incorporated, Shoreview, MN (US);
Abstract
A hand-held, automated qualitative fit tester (QLFT) for establishing gas mask fit integrity. The automated QLFT may be configured to utilize a pressure source in combination with a cartridge and a nebulizer to generate aerosols having size distributions and concentrations that are substantially the same as OSHA-approved manual units. The QLFT may further include a cartridge that contains the aerosol solution used to test mask integrity. The cartridge may be configured to recapture solution that collects on the interior walls of the nebulizer. The automated QLFT may also be equipped with a microprocessor for executing sequences that are in substantive compliance with 29 CFR 1910.134 and for writing to a data storage device. The automated aspects of the invention can reduce or negate the need for operating personnel to repeatedly and manually actuate a squeeze ball and record results manually, as is required with present OSHA-approved hand-held aerosol generators.