Patents by Inventor Doanh T Tran

Doanh T Tran 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).

  • Patent number: 7179443
    Abstract: A system for generating hydrogen gas for use in a fuel cell includes a powder metal hydride source, a water source, a mixing device and a catalytic hydrogen generating chamber. A method of generating hydrogen for use in a fuel cell includes the steps of: providing a source of dry metal hydride fuel; providing a source of steam; providing a mixing/reaction chamber connected to the source of dry metal hydride fuel and to the source of steam; operating the mixing/reaction chamber to transport the dry metal hydride fuel from its source to a byproduct receptacle and feeding steam into the mixing/reaction chamber such that the steam reacts with the dry metal hydride fuel to produce hydrogen gas and a dry metal powder byproduct; removing the dry metal powder byproduct from the mixing/reaction chamber; and extracting the hydrogen gas from the mixing/reaction chamber.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: February 20, 2007
    Assignee: DaimlerChrysler Corporation
    Inventors: Andreas Schell, Rolf Schaller, Jason W Buelow, Doanh T Tran
  • Patent number: 7040431
    Abstract: A fuel cell hybrid vehicle utilizing flooded aqueous battery or batteries operatively coupled to a fuel cell stack, an electric drive motor, and an integrated watering system, the integrated watering system comprising: a heat exchanger configured to extract water from exhaust air from the fuel cell stack; a reservoir, operatively connected to store the water; a sensor, operatively connected to generate a signal based on the flooded aqueous batteries' electrolyte level; a pump, operatively connected to the reservoir and the flooded aqueous batteries; and a system controller, operatively connected to receive and evaluate the signal from the sensor and actuate the pump to move water from the reservoir to the flooded aqueous battery or batteries.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: May 9, 2006
    Assignee: DaimlerChrysler Corporation
    Inventors: Thomas J Tartamella, Doanh T Tran
  • Publication number: 20040166057
    Abstract: A system for generating hydrogen gas for use in a fuel cell includes a powder metal hydride source, a water source, a mixing device and a catalytic hydrogen generating chamber. A method of generating hydrogen for use in a fuel cell includes the steps of: providing a source of dry metal hydride fuel; providing a source of steam; providing a mixing/reaction chamber connected to the source of dry metal hydride fuel and to the source of steam; operating the mixing/reaction chamber to transport the dry metal hydride fuel from its source to a byproduct receptacle and feeding steam into the mixing/reaction chamber such that the steam reacts with the dry metal hydride fuel to produce hydrogen gas and a dry metal powder byproduct; removing the dry metal powder byproduct from the mixing/reaction chamber; and extracting the hydrogen gas from the mixing/reaction chamber.
    Type: Application
    Filed: August 28, 2003
    Publication date: August 26, 2004
    Inventors: Andreas Schell, Rolf Schaller, Jason W. Buelow, Doanh T. Tran