Patents by Inventor Tran Ngoc PHUC

Tran Ngoc PHUC 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).

  • Oxygen concentrator
    Patent number: 8500879
    Abstract: The present invention provides oxygen concentrators which achieve reliable pressure control in the oxygen columns with reduced number of components for pressure control in the oxygen columns, and also easy maintenance and reduced power consumption. PSA, PVSA, or VSA oxygen concentrator consisting of oxygen concentration columns BF1 and BF2, pressure control means for adjusting pressure in the oxygen concentration columns, and oxygen tank T for storing concentrated oxygen, comprises mechanical flow control means SC1 which regulates flow from the oxygen tank to the oxygen concentration columns. Pressures in the oxygen concentration columns BF1 and BF2 are kept within a predetermined range by the function of mechanical flow control means SC1 placed in between the oxygen concentration columns and the oxygen tank.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: August 6, 2013
    Assignee: Metran Co., Ltd.
    Inventors: Tran Ngoc Phuc, Shinichi Nakane
  • OXYGEN CONCENTRATOR
    Publication number: 20120234173
    Abstract: The present invention provides oxygen concentrators which achieve reliable pressure control in the oxygen columns with reduced number of components for pressure control in the oxygen columns, and also easy maintenance and reduced power consumption. PSA, PVSA, or VSA oxygen concentrator consisting of oxygen concentration columns BF1 and BF2, pressure control means for adjusting pressure in the oxygen concentration columns, and oxygen tank T for storing concentrated oxygen, comprises mechanical flow control means SC1 which regulates flow from the oxygen tank to the oxygen concentration columns. Pressures in the oxygen concentration columns BF1 and BF2 are kept within a predetermined range by the function of mechanical flow control means SC1 placed in between the oxygen concentration columns and the oxygen tank.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 20, 2012
    Inventors: Tran Ngoc PHUC, Shinichi Nakane