Joe Nuckolls

US Patent:

59629886, Oct 5, 1999

Filed:

Nov 12, 1997

Appl. No.:

8/968093

Inventors:

Joe Allen Nuckolls - Etowah NC
Lily Li Lin - Portland OR

Assignee:

Hubbell Incorporated - Orange CT

International Classification:

G05F 100

US Classification:

315291

Abstract:

A discharge lamp operating circuit is connected to a source of alternating current (AC) voltage, and has a discharge lamp and a semi-resonant circuit connected to the source of alternating current voltage and in series with the lamp. A starting circuit for initiating operation of said discharge lamp is also connected in the circuit. The lamp switching maintains the series semi-resonant circuit in oscillation and the series semi-resonant circuit maintains the lamp in operation after operation has been initiated by the starting circuit. Highly efficient energy transfer between inductive and capacitive components of the system result in low loss and high power factor. A variable capacitance circuit is provided to allow use of the discharge lamp operating circuit with different line voltages, and to allow dimming.

US Patent:

56636121, Sep 2, 1997

Filed:

Apr 30, 1996

Appl. No.:

8/637966

Inventors:

Joe A. Nuckolls - Etowah NC

Assignee:

Hubbell Incorporated - Orange CT

International Classification:

H05B 3700

US Classification:

315240

Abstract:

An apparatus for dimming a discharge lamp is provided which comprises an electromagnetic regulator. The electromagnetic regulator has a primary winding connected to an AC power supply, a secondary winding connected to the lamp, and a tertiary winding. A capacitor is selectively connected to a tap on the tertiary winding via a switching device for dimming purposes.

US Patent:

42740339, Jun 16, 1981

Filed:

Jun 18, 1979

Appl. No.:

6/049193

Inventors:

Joe A. Nuckolls - Hendersonville NC

Assignee:

General Electric Company - Schenectady NY

International Classification:

H05B 3702
H05B 3904
H05B 4136

US Classification:

315209R

Abstract:

High frequency circuit for operating gaseous discharge lamps includes oppositely poled controlled semiconductor switches connected to a resonant circuit comprising a capacitor and inductor connected to the lamp load and serving both as a high-frequency ballast for the lamp and to effect alternating turn-off of the semiconductor switches. Diodes are connected to the switches in a manner to provide energy pulses on the lamp load without return to the supply source. A control circuit is provided for alternately triggering the semiconductor switches into operation.

US Patent:

39639584, Jun 15, 1976

Filed:

Nov 18, 1974

Appl. No.:

5/524654

Inventors:

Joe A. Nuckolls - Hendersonville NC

Assignee:

General Electric Company - New York NY

International Classification:

H05B 3700

US Classification:

315276

Abstract:

Operating circuits for gaseous discharge lamps such as those of metal vapor type having ballast devices of conventional type are provided with high voltage generating devices for applying high voltage starting pulses on the lamp, comprising a charging capacitor and a neon glow tube forming a series discharge loop with a selected number of turns of the ballast coil winding at its output end.

US Patent:

39315436, Jan 6, 1976

Filed:

Sep 30, 1974

Appl. No.:

5/510287

Inventors:

Joe A. Nuckolls - Hendersonville NC

Assignee:

General Electric Company

International Classification:

H05B 4114

US Classification:

315177

Abstract:

Circuits are disclosed for starting and operating a high pressure sodium vapor lamp in combination with another gaseous discharge lamp of low voltage breakdown characteristics. The sodium vapor lamp is connected in series with a ballast induction coil, while the low voltage breakdown lamp, a portion of the ballast coil at its input side, and a capacitor are connected in a series discharge loop to produce high frequency, high voltage pulses for starting the sodium vapor lamp, and providing for operation of both lamps. A ballast capacitor is connected in series with the low voltage lamp to provide a lead ballast circuit therefor.