Patents by Inventor Erich Walter

Erich Walter 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).

  • HYDROGEN GAS SENSOR
    Publication number: 20080106276
    Abstract: A hydrogen gas sensor and/or switch fabricated from arrays nanowires composed of metal or metal alloys that have stable metal hydride phases. The sensor and/or switch response times make it quite suitable for measuring the concentration of hydrogen in a flowing gas stream. The sensor and/or switch preferably operates by measuring the resistance of several metal nanowires arrayed in parallel in the presence of hydrogen gas. The nanowires preferably comprise gaps or break junctions that can function as a switch that closes in the presence of hydrogen gas.
    Type: Application
    Filed: March 6, 2007
    Publication date: May 8, 2008
    Inventors: Reginald Penner, Erich Walter, Fred Favier
  • Timing device for pneumatic control systems
    Patent number: 3931832
    Abstract: This invention relates to pneumatic control systems, particularly to a timing device for the same, wherein a control device is maintained at a constant speed by means of a balance wheel or flywheel, whose kinetic energy furnishes a pneumatic signal and which mechanically shifts a valve to pass on the pneumatic signal. The shifting of the valve is adjustable.
    Type: Grant
    Filed: June 27, 1974
    Date of Patent: January 13, 1976
    Inventors: Karl Hodler, Erich Walter