Patents by Inventor Franz Feuerstein

Franz Feuerstein 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).

  • Device having at least one PTC resistor
    Patent number: 8212647
    Abstract: The present invention relates to a device having at least one PCT resistor and having at least one AC voltage source connected to the PTC resistor, with the PTC resistor being dimensioned such that the voltage drop over the PTC resistor does not exceed the value of 40 V/mm.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: July 3, 2012
    Assignee: Liebherr-Aerospace Lindenberg GmbH
    Inventor: Franz Feuerstein
  • Device having at least one PTC resistor
    Publication number: 20090121824
    Abstract: The present invention relates to a device having at least one PCT resistor and having at least one AC voltage source connected to the PTC resistor, with the PTC resistor being dimensioned such that the voltage drop over the PTC resistor does not exceed the value of 40 V/mm.
    Type: Application
    Filed: October 16, 2008
    Publication date: May 14, 2009
    Inventor: Franz Feuerstein
  • Air heat exchanger
    Publication number: 20060237180
    Abstract: The present disclosure relates to an air heat exchanger in air diffuser systems with flexible planar heat exchanger elements, in particular for use in aircraft. In accordance with the present disclosure, the individual planar heat exchanger elements are connected with each other by means of webs. The present disclosure furthermore relates to a method for manufacturing air heat exchangers as well as to a use thereof.
    Type: Application
    Filed: April 18, 2006
    Publication date: October 26, 2006
    Inventors: Norman Anke, Franz Feuerstein