Patents by Inventor Andreas Ludwig

Andreas Ludwig 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).

  • Heating system and process for influencing air flows in a heating system
    Patent number: 6955303
    Abstract: A heating system for heating air, especially for heating the interior of a motor vehicle, with a first heater (10), a second heater (12), and a flow path between the first heater (10) and the second heater (12), there being at least one auxiliary fan (50) with which a flow in the direction from the second heater (12) to the first heater (10) can be produced and a process for influencing the air flows in the heating system are designed to counteract overpressurization. Furthermore, an air heater and a process for detecting backflowing hot air through an air heater use a temperature sensor in an inlet area of the heater for that purpose.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: October 18, 2005
    Assignee: Webasto Thermosysteme International GmbH
    Inventors: Nils Elm, Andreas Ludwig, Andreas May, Nikolaus Gerhardt, Friedrich Widemann
  • Heating system and process for influencing air flows in a heating system
    Patent number: 6793147
    Abstract: A heating system for heating air, especially for heating the interior of a motor vehicle, with a first heater (10), a second heater (12), and a flow path between the first heater (10) and the second heater (12), there being at least one auxiliary fan (50) with which a flow in the direction from the second heater (12) to the first heater (10) can be produced and a process for influencing the air flows in the heating system are designed to counteract overpressurization. Furthermore, an air heater and a process for detecting backflowing hot air through an air heater use a temperature sensor in an inlet area of the heater for that purpose.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: September 21, 2004
    Assignee: Webasto Thermosysteme International GmbH
    Inventors: Nils Elm, Andreas Ludwig, Andreas May, Nikolaus Gerhardt, Friedrich Widemann
  • Heating system and process for influencing air flows in a heating system
    Publication number: 20040108389
    Abstract: A heating system for heating air, especially for heating the interior of a motor vehicle, with a first heater (10), a second heater (12), and a flow path between the first heater (10) and the second heater (12), there being at least one auxiliary fan (50) with which a flow in the direction from the second heater (12) to the first heater (10) can be produced and a process for influencing the air flows in the heating system are designed to counteract overpressurization. Furthermore, an air heater and a process for detecting backflowing hot air through an air heater use a temperature sensor in an inlet area of the heater for that purpose.
    Type: Application
    Filed: December 5, 2003
    Publication date: June 10, 2004
    Applicant: Webasto Thermosysteme International GmbH
    Inventors: Nils Elm, Andreas Ludwig, Andreas May, Nikolaus Gerhardt, Friedrich Widemann
  • Ice storage element with thickened ice storage medium
    Patent number: 6524497
    Abstract: An ice storage element (28), especially for the auxiliary air conditioning system of a motor vehicle, with a hollow body for forming at least one storage space (34) for an ice storage medium (36) which is liquid in the thawed state and which can be brought into heat-conductive connection with a refrigerant. The ice storage medium (36) contains a thickening agent to suppress sloshing of the ice storage medium (36) in the thawed state and to ensure freezing of the ice storage medium (36) in the form of a slush.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: February 25, 2003
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Peter Glaser, Albrecht Otte, Andreas Ludwig
  • Heating system and process for influencing air flows in a heating system
    Publication number: 20030019945
    Abstract: A heating system for heating air, especially for heating the interior of a motor vehicle, with a first heater (10), a second heater (12), and a flow path between the first heater (10) and the second heater (12), there being at least one auxiliary fan (50) with which a flow in the direction from the second heater (12) to the first heater (10) can be produced and a process for influencing the air flows in the heating system are designed to counteract overpressurization. Furthermore, an air heater and a process for detecting backflowing hot air through an air heater use a temperature sensor in an inlet area of the heater for that purpose.
    Type: Application
    Filed: June 18, 2002
    Publication date: January 30, 2003
    Applicant: Webasto Thermosysteme International GmbH
    Inventors: Nils Elm, Andreas Ludwig, Andreas May, Nikolaus Gerhardt, Friedrich Widemann