Patents by Inventor Laszlo Lieszkovszky

Laszlo Lieszkovszky 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).

  • IR-coated halogen lamp using reflective end coats
    Patent number: 6967443
    Abstract: A halogen infrared lamp (100) having an infrared reflective coating (118) along with a totally reflecting coating (120) on ends of an ellipsoidal portion of the envelope. The totally reflecting coating reflects the infrared radiation escaping at acute angles and directs the infrared radiation towards the filament to increase the temperature of the filament and thus increase the efficacy of the lamp. The totally reflecting coating may also extend to portions of tubular members extending from the ellipsoidal portion of the envelope.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: November 22, 2005
    Assignee: General Electric Company
    Inventors: Laurence Bigio, Rajasingh Israel, Ashfaqul I. Chowdhury, Laszlo Lieszkovszky
  • IR-coated halogen lamp using reflective end coats
    Publication number: 20040104678
    Abstract: A halogen infrared lamp (100) having an infrared reflective coating (118) along with a totally reflecting coating (120) on ends of an ellipsoidal portion of the envelope. The totally reflecting coating reflects the infrared radiation escaping at acute angles and directs the infrared radiation towards the filament to increase the temperature of the filament and thus increase the efficacy of the lamp. The totally reflecting coating may also extend to portions of tubular members extending from the ellipsoidal portion of the envelope.
    Type: Application
    Filed: November 14, 2003
    Publication date: June 3, 2004
    Applicant: General Electric Company
    Inventors: Laurence Bigio, Rajasingh Israel, Ashfaqul I. Chowdhury, Laszlo Lieszkovszky
  • High pressure halogen filament lamp
    Publication number: 20020130600
    Abstract: An improved high pressure halogen filament lamp is disclosed. The lamp has a filament tube attached to a base, and an outer envelope encompassing the filament tube. Reductions to the gas fill pressures of the outer envelope and filament tube increase the probability that the coated outer envelope will contain the fragments of the filament tube in cases involving explosive failure of the filament tube.
    Type: Application
    Filed: January 24, 2001
    Publication date: September 19, 2002
    Inventors: Laurence Bigio, Laszlo Lieszkovszky, Robert J. Berki
  • Burnout protection for lamps wired in series
    Patent number: 6392352
    Abstract: A plurality of lamps are connected in series. A plurality of burnout detector mechanisms are provided where one of the burnout detector mechanisms from the plurality is connected across a corresponding lamp of the plurality of serially connected lamps. When a lamp in the series enters a failure state, the burnout detector mechanism is activated providing an indication as to the burned out lamp. Depending upon the values provided in the burnout detector mechanism and the type of lamps, the remaining lamps will either enter an OFF state, or a low-light glow state.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: May 21, 2002
    Assignee: General Electric Company
    Inventors: William R. Walters, Laszlo Lieszkovszky