Patents by Inventor Stephen M. Liscinsky

Stephen M. Liscinsky 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).

  • Circuit for expanding the dimming range of an LED lamp
    Patent number: 9807841
    Abstract: A circuit and method for controlling one or more light emitting diodes (LEDs) includes one or more LEDs connected to the emitter a transistor and controlling the brightness of the LEDs over a large range based on a voltage range at a base of the transistor controlled by an automatic adjusting mechanism.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: October 31, 2017
    Assignee: Hubbell Incorporated
    Inventor: Stephen M. Liscinsky
  • Low current solution for illuminated switches using DC operated LEDs
    Patent number: 8853963
    Abstract: A switch circuit utilizes an LED for illumination. A diode is connected in parallel with the LED but in opposite orientation, with the LED anode connected to the diode cathode, and the LED cathode connected to the diode anode, to permit discharging of a power supply capacitor of a ballast of a lamp such as a compact fluorescent light (CFL) bulb. Undesirable flickering of the CFL are then avoided.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: October 7, 2014
    Assignee: Hubbell Incorporated
    Inventors: Stephen M. Liscinsky, Gregg R. Schelmetic
  • CIRCUIT FOR EXPANDING THE DIMMING RANGE OF AN LED LAMP
    Publication number: 20140015420
    Abstract: A circuit and method for controlling one or more light emitting diodes (LEDs) includes one or more LEDs connected to the emitter a transistor and controlling the brightness of the LEDs over a large range based on a voltage range at a base of the transistor controlled by an automatic adjusting mechanism.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 16, 2014
    Inventor: Stephen M. Liscinsky
  • LOW CURRENT SOLUTION FOR ILLUMINATED SWITCHES USING DC OPERATED LEDS
    Publication number: 20130057171
    Abstract: A switch circuit utilizes an LED for illumination. A diode is connected in parallel with the LED but in opposite orientation, with the LED anode connected to the diode cathode, and the LED cathode connected to the diode anode, to permit discharging of a power supply capacitor of a ballast of a lamp such as a compact fluorescent light (CFL) bulb. Undesirable flickering of the CFL are then avoided.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 7, 2013
    Applicant: HUBBELL INCORPORATED
    Inventors: Stephen M. Liscinsky, Gregg R. Schelmetic
  • Ground fault circuit interrupter (GFCI) end-of-life (EOL) status indicator
    Patent number: 7336457
    Abstract: Disclosed is an end-of-life status alarm indication circuit and method for indicating the failure of the primary contacts of a ground fault circuit interruption (GFCI) device to open when a ground fault circuit is detected by the GFCI device. The GFCI device will protect against the situation where the primary contacts of a GFCI device become welded together and will not open when a ground fault circuit is detected by the device. The alarm indication may be either an audible or visual indication.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: February 26, 2008
    Assignee: Hubbell Incorporated
    Inventor: Stephen M. Liscinsky, III