Patents by Inventor David L. Ruffini

David L. Ruffini 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).

  • LED PAPI with condensation protection
    Patent number: 9228721
    Abstract: In accordance with an example embodiment, there is disclosed herein a LED PAPI (10) with condensation protection. The condensation protection may suitably comprise passive components, such as gaskets and seals (26, 36) and a desiccant (48), and/or active components, such as a defroster (39) and/or a heater (50).
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: January 5, 2016
    Assignee: ADB Airfield Solutions
    Inventors: John Hesch, Jr., David L. Ruffini, Glenn Alan Morrow, Richard Schweder
  • LED PAPI WITH CONDENSATION PROTECTION
    Publication number: 20130334984
    Abstract: In accordance with an example embodiment, there is disclosed herein a LED PAPI (10) with condensation protection. The condensation protection may suitably comprise passive components, such as gaskets and seals (26, 36) and a desiccant (48), and/or active components, such as a defroster (39) and/or a heater (50).
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Inventors: John Hesch, JR., David L. Ruffini, Glenn Alan Morrow, Richard Schweder
  • Light emitting diode precision approach path indicator (LED PAPI)
    Patent number: 8550658
    Abstract: Described herein is a LED PAPI having an array of light emitting diodes (LEDs), the array of LEDs comprising a first set of LEDs emitting a first color and a second set of LEDs emitting a second color. Light from the array of LEDs passes through a pair of apertures separated by a precision ground blade. The precision ground blade has a first edge that is closest to the array of LEDs and a second edge opposite the first edge. The first and second edges have different thicknesses. After passing through the apertures, the light passes through a first lens and a second lens.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: October 8, 2013
    Assignee: ADB Airfield Solutions
    Inventors: Richard Hansler, David L. Ruffini, Edward Carome, Vilnis Kubulins
  • LIGHT EMITTING DIODE PRECISION APPROACH PATH INDICATOR (LED PAPI)
    Publication number: 20110285294
    Abstract: Described herein is a LED PAPI having an array of light emitting diodes (LEDs), the array of LEDs comprising a first set of LEDs emitting a first color and a second set of LEDs emitting a second color. Light from the array of LEDs passes through a pair of apertures separated by a precision ground blade. The precision ground blade has a first edge that is closest to the array of LEDs and a second edge opposite the first edge. The first and second edges have different thicknesses. After passing through the apertures, the light passes through a first lens and a second lens.
    Type: Application
    Filed: November 18, 2010
    Publication date: November 24, 2011
    Inventors: Richard Hansler, David L. Ruffini, Edward Carome, Vilnis Kubulins