Patents by Inventor Wolfgang Spellmeier

Wolfgang Spellmeier 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).

  • Emergency opening cylinder of a passenger door for an airplane, a door system and a method of modifying a door system
    Patent number: 6685139
    Abstract: An emergency opening cylinder of a passenger door of an airplane is provided. An existing emergency opening cylinder is adapted at the lowest expenditures and with an insignificant increase in weight with respect to its operating characteristic to the load situation of an emergency opening of the door against the force of gravity. A ventilation bore of the emergency opening cylinder leads into a collecting chamber which has an outlet valve controllable by a control.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: February 3, 2004
    Assignee: Eurocopter Deutschland GmbH
    Inventors: Stefan Blum, Thomas Nickl, Wolfgang Spellmeier
  • Emergency opening cylinder of a passenger door for an airplane, a door system and a method of modifying a door system
    Publication number: 20030132347
    Abstract: An emergency opening cylinder of a passenger door of an airplane is provided. An existing emergency opening cylinder is adapted at the lowest expenditures and with an insignificant increase in weight with respect to its operating characteristic to the load situation of an emergency opening of the door against the force of gravity. A ventilation bore of the emergency opening cylinder leads into a collecting chamber which has an outlet valve controllable by a control.
    Type: Application
    Filed: December 16, 2002
    Publication date: July 17, 2003
    Inventors: Stefan Blum, Thomas Nickl, Wolfgang Spellmeier