Patents by Inventor Karl Goettl

Karl Goettl 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).

  • Control device for an engine-independent heater, heating system, and method for controlling an engine-independent heater
    Patent number: 8740105
    Abstract: The invention relates to a control device (12) for an engine-independent heater (3) that heats a liquid heat transfer medium of a heat transfer medium circuit (1) especially for motor vehicles. Said control device (12) reduces a heater (3) capacity when an actual temperature gradient ((dT/dtIst) of the heat transfer medium is equal to or exceeds a temperature gradient threshold value ((dT/dt)Schwell). The control device (12) determines the temperature gradient threshold value ((dT/dt)Schwell) dynamically in accordance with a difference in temperature (??) between a target temperature (?Soll) of the heat transfer medium and an actual temperature (?Ist) of the heat transfer medium. The invention further relates to a heater (3), a heating system (1), and a method for controlling the inventive heater (3).
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: June 3, 2014
    Assignee: Webasto AG
    Inventors: Nikolaus Gerhardt, Karl Göttl, Markus Griner