Patents by Inventor Egon Joehnk

Egon Joehnk 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).

  • Fault tolerant air bag bus system without transformer
    Patent number: 6512308
    Abstract: A fault tolerant air bag system needs a floating supply, which supply conventionally is made by means of a DC-DC converter with a transformer. By splitting the main energy reserve capacitor (14) into two capacitors (14, 34), and coupling one of the capacitors (34) to the other (14) by means of switches (36, 38) which open during a crash, no transformer is needed any more.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: January 28, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Hendrik Boezen, Aloysius Johannes Maria Boomkamp, Martinus Bredius, Peter Buehring, Patrick Willem Hubert Heuts, Abraham Klaas Van Den Heuvel, Egon Joehnk, Maarten Teunis Visser, Ruurd Anne Visser
  • Fault tolerant air bag bus system without transformer
    Publication number: 20010054846
    Abstract: A fault tolerant air bag system needs a floating supply, which supply conventionally is made by means of a DC-DC converter with a transformer. By splitting the main energy reserve capacitor (14) into two capacitors (14, 34), and coupling one of the capacitors (34) to the other (14) by means of switches (36, 38) which open during a crash, no transformer is needed any more.
    Type: Application
    Filed: April 19, 2001
    Publication date: December 27, 2001
    Inventors: Hendrik Boezen, Aloysius Johannes Maria Boomkamp, Martinus Bredius, Peter Buehring, Patrick Willem Hubert Heuts, Abraham Klaas Van Den Heuvel, Egon Joehnk, Maarten Teunis Visser, Ruurd Anne Visser