Patents by Inventor Steven J. Grabowski

Steven J. Grabowski 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).

  • Patent number: 6693514
    Abstract: A signaling device for annunciating in a hallway of a building a status of a monitored person or object is provided. The signaling device includes at least two vertically stacked sections for announcing a status of the monitored person or object with each section announcing a status of a different condition. Each section includes a solid-state, light-emitting device (LED) that is supported such that when the device is mounted to the wall of the hallway a beam of light from the LED is substantially aimed at a wall opposing the wall to which the device is mounted. A pair of opposing planar surfaces extends along diverging planes and is supported over each LED to receive the LED's beam of light. Each of the planar surfaces extends at an angle approximately equal to a characteristic optical beam angle of the beam of light.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: February 17, 2004
    Assignee: Rauland-Borg Corporation
    Inventors: Levi J. Perea, Jr., Steven J. Grabowski, Michael C. Perkins
  • Publication number: 20030179099
    Abstract: A signaling device for annunciating in a hallway of a building a status of a monitored person or object is provided. The signaling device includes at least two vertically stacked sections for announcing a status of the monitored person or object with each section announcing a status of a different condition. Each section includes a solid-state, light-emitting device (LED) that is supported such that when the device is mounted to the wall of the hallway a beam of light from the LED is substantially aimed at a wall opposing the wall to which the device is mounted. A pair of opposing planar surfaces extends along diverging planes and is supported over each LED to receive the LED's beam of light. Each of the planar surfaces extends at an angle approximately equal to a characteristic optical beam angle of the beam of light.
    Type: Application
    Filed: March 20, 2002
    Publication date: September 25, 2003
    Inventors: Levi J. Perea, Steven J. Grabowski, Michael C. Perkins