Patents by Inventor Alfred Arthur Lutz

Alfred Arthur Lutz 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 a railroad car
    Patent number: 7328661
    Abstract: Pivotally mounted doors forming the floor of a railroad car are prevented from opening inadvertently through not allowing air pressure to be applied to a door opening piston until the air pressure exceeds a predetermined amount.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: February 12, 2008
    Assignee: Lexair, Inc.
    Inventors: James George Allen, Alfred Arthur Lutz, Jacob Daniel Rupp, II
  • Control device for a railroad car
    Patent number: 7093544
    Abstract: Pivotally mounted doors forming the floor of a railroad car are prevented from opening inadvertently through not allowing air pressure to be applied to a door opening piston until the air pressure exceeds a predetermined amount.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: August 22, 2006
    Assignee: Lexair, Inc.
    Inventors: James George Allen, Alfred Arthur Lutz, Jacob Daniel Rupp, II