Patents by Inventor Dirk Schroeter

Dirk Schroeter 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).

  • Fuel cell system provided with a cooling circuit
    Publication number: 20070026267
    Abstract: A method and apparatus for cooling a fuel cell system. The system includes a fuel cell (1) having a cooling device (15) which forms part of a cooling circuit including a liquid coolant. The cooling circuit, outside the fuel cell (1), contains a device by which any gases which may penetrate into the liquid coolant from the fuel cell (1) are separated out and fed to the mass flow of the oxygen-containing gas which is fed into the fuel cell.
    Type: Application
    Filed: September 12, 2003
    Publication date: February 1, 2007
    Inventors: Uli Paulus, Dirk Schroeter
  • Method and apparatus for monitoring parameters of an easily ignited gas
    Patent number: 7109855
    Abstract: In a method and apparatus for monitoring a parameter, such as a concentration level, of an easily ignited gas, such as hydrogen, includes a wake-up device that is connected to a current/voltage supply, and can switch the monitoring unit from a state of rest into an active state after an adjustable time interval. The device according to the invention can be used in a fuel cell system or in a vehicle. Furthermore, the invention relates to a method for monitoring the concentration of an easily ignited gas.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: September 19, 2006
    Assignee: DaimlerChrysler AG
    Inventors: Ulrich Appt, Dirk Schroeter
  • Method and an arrangement for producing electric energy by means of at least one fuel cell
    Publication number: 20060166049
    Abstract: The invention relates to a method and an arrangement for generating electrical energy with at least one fuel cell. The fuel cell has a membrane unit for direct or indirect separation and/or for transporting charge carriers and/or reaction products. The membrane unit has an angle of inclination of 45° or a smaller angle of inclination with respect to the horizontal.
    Type: Application
    Filed: April 19, 2003
    Publication date: July 27, 2006
    Inventor: Dirk Schroeter
  • Method and arrangement for purification of gases for supply to operate a fuel cell by the application of physical and chemical filters
    Publication number: 20060096456
    Abstract: A method and an arrangement are provided for purifying gases which are fed to a fuel cell for operation. A filter system, which is designed to separate out particulates and polluting gases, is arranged in a feed passage for the respective gas.
    Type: Application
    Filed: May 20, 2003
    Publication date: May 11, 2006
    Applicant: DaimlerChrysler AG
    Inventor: Dirk Schroeter
  • Device for the intake and compression of at least one gas in fuel cell system
    Publication number: 20050268978
    Abstract: The invention relates to a device for sucking in and compressing at least one gas in a fuel cell system (1). A compressor (4) for the gas is connected, at its gas inlet, to a gas filter system (5) via an elastic, sealed gas-routing passage (8) made from textile material.
    Type: Application
    Filed: April 30, 2003
    Publication date: December 8, 2005
    Inventor: Dirk Schroeter
  • Device for producing an abrupt feed motion
    Patent number: 6655472
    Abstract: A device for producing an abrupt or sudden feed motion contains in a casing a feed device, which can be triggered by a trigger. The force necessary for advancing the feed device is applied by a spring, which is tensioned with the aid of a drive. The tool requires no cartridges for propellant charges.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: December 2, 2003
    Assignee: Adolf Wuerth GmbH & Co. KG
    Inventors: Siegfried Humm, Dirk Schroeter
  • Method and apparatus for monitoring parameters of an easily ignited gas
    Publication number: 20030215681
    Abstract: In a method and apparatus for monitoring a parameter, such as a concentration level, of an easily ignited gas, such as hydrogen, includes a wake-up device that is connected to a current/voltage supply, and can switch the monitoring unit from a state of rest into an active state after an adjustable time interval. The device according to the invention can be used in a fuel cell system or in a vehicle. Furthermore, the invention relates to a method for monitoring the concentration of an easily ignited gas.
    Type: Application
    Filed: April 3, 2003
    Publication date: November 20, 2003
    Inventors: Ulrich Appt, Dirk Schroeter