Patents by Inventor Maureen Pelling

Maureen Pelling 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: 6909250
    Abstract: A xenon arc searchlight incorporates a high frequency/high efficiency electronic circuit that allows lamp ballasting and charging of the system battery to occur over a wide range of external DC power supplies. The xenon arc searchlight has a converter circuit coupled to both the battery, the ballasting circuit and the arc lamp for converting DC voltage from the battery to pulse width modulated switched current to the arc lamp in which the DC voltage is switched by parallel switching transistors. The ballisting circuit is controllable by a switch to vary current supplied to the converter circuit and hence intensity of the lamp which discrete steps in intensity of the lamp are not visually perceptibly different between one step to a next step in the sequence of steps of the current to the lamp. The lamp, ballast, battery and charger are provided in a single rugged package.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: June 21, 2005
    Assignee: Xenonics, Inc.
    Inventors: Gregory Z. Jigamian, Maureen Pelling, Goran Forschager, Jeffrey P. Kennedy, George Pelling
  • Patent number: 6896392
    Abstract: A xenon arc searchlight or illumination system incorporates a quick change release and assembly so that the lamp, reflector and battery assemblies are easily field replaceable without tools. The lamp, ballast, battery and charger are provided in a single rugged package which can be sealed for field use. The searchlight is combined by an appropriate mounting adaptable with other optical detector devices such as cameras, binoculars and night vision telescopes. The beam output is similarly usable with a combination of filters to allow the most varied intensity and wavelengths for a particular application, such as smoke filled environments, surveillance employing near-infrared or infrared illumination, ultraviolet, underwater illumination or illumination with any color in the visible range.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: May 24, 2005
    Assignee: Xenonics, Inc.
    Inventors: Gregory Z. Jigamian, Maureen Pelling, Goran Forschager, Jeffrey P. Kennedy, George Pelling