Patents by Inventor Cheng Chen Bong

Cheng Chen Bong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rapid cycle pressure swing adsorption oxygen concentration method and mechanical valve for the same
    Patent number: 7637989
    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.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: December 29, 2009
    Assignee: Merits Health Products Co., Ltd.
    Inventor: Cheng Chen Bong
  • Rapid cycle pressure swing adsorption oxygen concentration method and mechanical valve for the same
    Publication number: 20050139070
    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.
    Type: Application
    Filed: December 31, 2003
    Publication date: June 30, 2005
    Inventor: Cheng Chen Bong