Patents by Inventor Herdith Grete Gabriele Coerlin

Herdith Grete Gabriele Coerlin 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).

  • Method for supplying fuel gas to a gas chamber of a fuel cell and fuel cell
    Patent number: 8748054
    Abstract: Mechanical stresses of the membrane of a fuel cell can be reduced by virtue of the fact that the supply of feed gas to a gas chamber of the fuel cell takes places, initially, by means of a first pressure increasing speed and then by means of a second pressure increasing speed. The first pressure increasing speed is slower than the second pressure increasing speed. Pressure surges are prevented in the membrane due to the lower pressure increasing speed in the first phase of the gas supply, and as a result, the life span of the membrane is increased.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: June 10, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Walter Stühler, Ottmar Voitlein, Herdith Grete Gabriele Coerlin
  • Method for Supplying Fuel Gas To a Gas Chamber of a Fuel Cell and Fuel Cell
    Publication number: 20100028726
    Abstract: Mechanical stresses of the membrane of a fuel cell can be reduced by virtue of the fact that the supply of feed gas to a gas chamber of the fuel cell takes places, initially, by means of a first pressure increasing speed and then by means of a second pressure increasing speed. The first pressure increasing speed is slower than the second pressure increasing speed. Pressure surges are prevented in the membrane due to the lower pressure increasing speed in the first phase of the gas supply, and as a result, the life span of the membrane is increased.
    Type: Application
    Filed: June 22, 2006
    Publication date: February 4, 2010
    Inventors: Detlev Coerlin, Herdith Grete Gabriele Coerlin, Walter Stühler, Ottmar Voitlein