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:
Dec. 29, 2009
Filed:
Dec. 31, 2003
Applicant:
Cheng Chen Bong, Kowloon, HK;
Inventor:
Cheng Chen Bong, Kowloon, HK;
Assignee:
Merits Health Products Co., Ltd., Taichung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rapid cycle pressure swing adsorption oxygen concentration method uses a mechanical valve that has at least one cam-actuated flow control valve to switch flow of fluid, such as compressed air coming into a sieve tank that is fitted with molecular sieve materials. The cam-actuated flow control valve is repeatedly actuated by the rotating cams to become open or closed to complete a cycle that precisely controls the flow direction, pressure conditions and pressurized timing in the sieve tank whereby performance and efficiency of producing rapidly oxygen is high.