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.:

US 9931641 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 03, 2018

Filed:

Jun. 06, 2012
Applicants:

Yiu Wai Chan, Hong Kong, HK;

Sui Chun Law, Hong Kong, HK;

Yiu Ming Chan, Hong Kong, HK;

Inventors:

Yiu Wai Chan, Hong Kong, HK;

Sui Chun Law, Hong Kong, HK;

Yiu Ming Chan, Hong Kong, HK;

Assignee:

Yiu Ming Chan, Hong Kong, HK;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B03C 3/36 (2006.01); B03C 3/08 (2006.01); B03C 3/145 (2006.01); B03C 3/47 (2006.01); B01D 53/32 (2006.01); A61L 9/16 (2006.01);
U.S. Cl.
CPC ...
B03C 3/363 (2013.01); B01D 53/323 (2013.01); B03C 3/08 (2013.01); B03C 3/145 (2013.01); B03C 3/365 (2013.01); B03C 3/366 (2013.01); B03C 3/47 (2013.01); A61L 9/16 (2013.01); A61L 2209/14 (2013.01); A61L 2209/16 (2013.01); B01D 2258/06 (2013.01); B03C 2201/18 (2013.01); Y02A 50/2357 (2018.01);
Abstract

The present invention is an air purification method and device. Due to the lower airflow resistance that the present invention induces, an exhaust fan or blower with motor of lower torque is adopted. Consequently, the whole air purification is operated at a lower noise level. Lower operational voltage is applicable for the high-voltage electrostatic precipitator device and provides a similar or superior performance and effectiveness for dust removal. The air purification device/system is designed with higher flexibility and of more compact in dimension and size. Dust is removed from the environment by a high voltage electrostatic precipitator. The airflow stream within a high-voltage electrostatic precipitator is such that the direction of the path of the airflow is changed at least twice.


Find Patent Forward Citations

Chan, Yiu. (2018). Air purification device and method (U.S. Patent No. 9931641). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9931641

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