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:
Mar. 20, 2012
Filed:
Oct. 06, 2008
Shi-nian Uang, Taipei County, TW;
Tung-sheng Shih, Taipei County, TW;
Chuen-jinn Tsai, Hsinchu, TW;
Cheng-han Wu, Hsinchu, TW;
Shi-Nian Uang, Taipei County, TW;
Tung-Sheng Shih, Taipei County, TW;
Chuen-Jinn Tsai, Hsinchu, TW;
Cheng-Han Wu, Hsinchu, TW;
Institution of Occupational Safety and Health, Taipei, TW;
Abstract
A personal nanoparticle sampler is disclosed to include a pre-classifier, a nozzle, a connector and a final filter pack. The connector and the final filter pack respectively accommodate a particle-sizing filter and a final filter to collect nanoparticles smaller than a diameter. The pre-classifier removes large particles to avoid clogging of the connector. The nozzle raises the airflow velocity to reduce the cut-off diameter of the particle-sizing filter without increasing the total flowrate, allowing the personal nanoparticle sampler to be used with a personal sampling pump.