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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Kendrick; George B.
Address:
Lexington, KY
No. of patents:
35
Patents:












Patent Number Title Of Patent Date Issued
D303015 Electric reflector lamp August 22, 1989
7839095 Lamp with integral voltage converter having phase-controlled dimming circuit containing a voltag November 23, 2010
An incandescent lamp includes a lamp voltage conversion circuit within the lamp and connected to a lamp terminal, where the voltage conversion circuit converts a first line voltage at the lamp terminal to a second RMS load voltage usable by a light emitting element of the lamp. The v
7612504 Lamp with integral voltage converter having phase-controlled dimming circuit for reducing RMS lo November 3, 2009
An incandescent lamp includes a lamp voltage conversion circuit within the lamp and connected to a lamp terminal, where the voltage conversion circuit converts a first line voltage at the lamp terminal to a second RMS load voltage usable by a light emitting element of the lamp. The v
7527396 Illumination device with thermally isolated integral power supply May 5, 2009
An incandescent lamp may be formed from a shell having an exterior side and an interior side defining a cavity, and with an internal wall defining a through passage extending from the exterior side to the interior side. A light source is located in the cavity facing the interior side
7492079 Tungsten halogen lamp having internal power supply including temperature relief February 17, 2009
A lamp (10) includes an envelope (12) having a body (14) with a light source capsule (16) contained therein and ending in a hollow base (18) that terminates in a conical end (20). A circuit board (22) is positioned within the hollow base (18) and includes a triangular portion (24) that
7462996 Method of operating a lamp with a power controller having current limited RMS regulated output December 9, 2008
A method for converting a line voltage to an RMS load voltage in a lamp includes providing a control circuit which includes a switch and a microcontroller that operates the switch to establish an RMS load voltage for the lamp. The load voltage of the lamp is sensed and the sensed load
7459861 Lamp containing voltage conversion circuit including forward/reverse hybrid phase-control clippi December 2, 2008
A lamp contains a lamp voltage conversion circuit which includes a forward/reverse hybrid phase-control clipping circuit that clips a load voltage and provides an RMS load voltage to the lamp. The phase-control clipping circuit has a time-based pulse source that triggers conduction o
7375475 Lamp containing power controller having current limited RMS regulated output May 20, 2008
A lamp contains a voltage conversion circuit that converts a line voltage to an RMS load voltage and includes a switch and a microcontroller that operates the switch to define the RMS load voltage. The microcontroller senses a load voltage of the lamp, compares the sensed load voltage to
7358689 Phase-control power controller for converting a line voltage to a RMS load voltage April 15, 2008
A phase-control power controller converts a line voltage to an RMS load voltage and includes a phase-control clipping circuit that clips a load voltage to provide the RMS load voltage. The power controller may be in a base of a lamp and connected to a lamp terminal. The phase-clipping
7342359 Forward/reverse hybrid switching power supply with time-based pulse triggering control March 11, 2008
A phase-control power controller that converts a line voltage to an RMS load voltage includes a fixed phase forward/reverse hybrid phase-control clipping circuit that performs phase-control clipping of a load voltage to provide an RMS load voltage. A conduction angle of the phase-control
7301291 Power controller having current limited RMS regulated output November 27, 2007
A power controller converts a line voltage to an RMS load voltage for a lamp, and includes a switch and a microcontroller that operates the switch to define the RMS load voltage. The microcontroller senses a load voltage of the lamp, compares the sensed load voltage to a reference RMS
7262554 Lamp with integral voltage converter having phase-controlled dimming circuit with hysteresis con August 28, 2007
An incandescent lamp includes a lamp voltage conversion circuit within the lamp and connected to a lamp terminal, where the voltage conversion circuit converts a first line voltage at the lamp terminal to a second RMS load voltage usable by a light emitting element of the lamp. The v
7211964 Lamp including phase-control power controller with digital RMS load voltage regulation May 1, 2007
A phase-control power controller that converts a line voltage to an RMS load voltage includes a phase-control circuit with a potentiometer and a capacitor whose resistance and capacitance determine clipping of a load voltage, a load sensing circuit that senses the load voltage and provid
7199532 Lamp containing phase-control power controller with analog RMS load voltage regulation April 3, 2007
A lamp includes a phase-control power controller within the lamp. The phase-control power controller includes an analog load voltage sensor that provides an optical output related to an RMS load voltage and a phase-controlled dimming circuit that has a comparison circuit that varies
7196480 Method of soft-starting a switching power supply containing phase-control clipping circuit March 27, 2007
A method of operating a power controller that converts a line voltage to an RMS load voltage includes a soft start in which a conduction angle of a phase-control clipping circuit is gradually increased to a steady state value that defines the RMS load voltage. The controller has a circui
7170236 Method of setting desired RMS load voltage in a lamp January 30, 2007
A method of converting a line voltage to a desired RMS load voltage in a lamp includes the steps of pulse width modulating a load voltage with a pulse width modulation circuit, triggering conduction in the pulse width modulation circuit independently of a line voltage magnitude with a
7170231 Lamp that sets desired RMS load voltage with variable pulse width modulation January 30, 2007
A lamp includes a voltage controller that converts a line voltage to a desired RMS load voltage. The voltage controller is entirely within a lamp base and uses pulse width modulation to define the RMS load voltage. The voltage controller has a feed-back circuit that adjusts the RMS load
7166964 Lamp containing pulse width modulated voltage conversion circuit January 23, 2007
A lamp includes a voltage conversion circuit entirely within a lamp base. The voltage conversion circuit includes a pulse width modulator for modulating a lamp load voltage and provides a load voltage to a light emitting element. A feed-back circuit adjusts the pulse width modulator
7126287 Lamp with integral voltage converter having phase-controlled dimming circuit with fuse-resistor October 24, 2006
An incandescent lamp includes a lamp voltage conversion circuit within the lamp and connected to a lamp terminal, where the voltage conversion circuit converts a first line voltage at the lamp terminal to a second RMS load voltage usable by a light emitting element of the lamp. The v
7116062 Method of soft-starting a switching power supply including pulse width modulation circuit October 3, 2006
A method of operating a power controller that converts a line voltage to an RMS load voltage includes a soft start in which a duty cycle of a pulse width modulation circuit is gradually increased to a steady state value that defines the RMS load voltage. The controller has a circuit
7053562 Lamp containing soft-start power supply May 30, 2006
A lamp includes a lamp voltage conversion circuit which converts a line voltage to an RMS load voltage by clipping or modulating a load voltage. The voltage conversion circuit includes a time-based signal source that triggers conduction in the voltage conversion circuit independently of
7049758 Method of soft-starting a switching power supply having time-based pulse triggering control May 23, 2006
A method of operating a power controller that converts a line voltage to an RMS load voltage includes a soft start in which a conduction angle or duty cycle is gradually increased to a steady state value that defines the RMS load voltage. The controller has a circuit with a time-based
7049750 Lamp having integral voltage controller May 23, 2006
A lamp includes a voltage conversion circuit that converts a line voltage to a desired RMS load voltage. The voltage conversion circuit is entirely within a lamp base and uses pulse width modulation to define the RMS load voltage. The voltage conversion circuit includes a bridge that sup
7034473 Phase-control power controller for converting a line voltage to an RMS load voltage April 25, 2006
A phase-control power controller that converts a line voltage to an RMS load voltage includes a phase-control circuit connected to the line and load terminals and having an RC network that clips the load voltage. A load sensing circuit is connected across the load terminals that senses
7034469 Phase-control power controller with analog RMS load voltage regulation April 25, 2006
A phase-control power controller that converts a line voltage to an RMS load voltage includes an analog load voltage sensor that includes a light emitter that provides an optical output related to an RMS load voltage, and a phase-control circuit that has a comparison circuit that varies
7030567 Phase-control power controller with digital RMS load voltage regulation April 18, 2006
A phase-control power controller that converts a line voltage to an RMS load voltage includes a phase-control circuit with a potentiometer and a capacitor whose resistance and capacitance determine clipping of a load voltage, a load sensing circuit that senses the load voltage and provid
4945288 Double jacket lamp July 31, 1990
A double jacket arc lamp is disclosed. A double jacket arc lamp may be formed with an electric lamp capsule having an inner light transmissive envelope with electrical lead extending from the inner envelope through a first seal, and a second light transmissive envelope sealed to the inne
4922155 Protective circuit for reduced voltage lamps May 1, 1990
A fail safe feature for long life reduced voltage lamps including diodes id disclosed. As known, a low wattage lamp may designed for longer life by using a lower root mean square design voltage. The root means square voltage of the alternating source current may be lowered by including a
4774432 Electric lamp with flexible cover holder September 27, 1988
An improved electric lamp wherein a flexible cover holder is utilized to secure the lamp's cover means (e.g., lens) against the reflector in a sealed manner. The holder flexes during lamp operation to enable expansion and/or contraction of the cover means in such a manner that damage the
4755711 Electric lamp with ceramic reflector July 5, 1988
An electric lamp of compact, rugged design capable of high temperature operation in such applications as down lighting, display lighting, track lighting, etc. The lamp includes a ceramic reflector having therein a capsule (e.g., tungsten halogen or arc discharge) which serves as the
4728849 Capsule light source for electric lamp March 1, 1988
A light-emitting capsule for use in a reflector-type electric lamp utilized in such applications as display and track lighting. The capsule includes a hollow bulb portion containing a light source (coiled filament or arc) therein and an elongated sealed end including a flattened, narrow
4553066 Multiple filament lamp having wire grid to provide filament redundancy November 12, 1985
A multi-filament lamp that includes a tubular envelope having a pinch seal at one end thereof and containing therein a halogen atmosphere. At least two coiled tungsten filaments are disposed in the tubular envelope and are supported so as to be oriented parallel to each other in the long
4450381 Tungsten-halogen lamp with preferential tungsten deposition site May 22, 1984
A tungsten-halogen incandescent lamp has a hermetically sealed light-transmitting envelope with a fill of inert gas and halogen, a tungsten filament and a preferential tungsten deposition site of palladium material within the envelope.
4390935 Projection unit with separable lamp capsule and means for ejecting same June 28, 1983
A projection unit for use within a slide or film projector or a microfilm viewer. The unit comprises a U-shaped metallic holder, a socket attached to or forming part of the holder's rear upstanding segment, a glass reflector secured to the holder's front segment such that its forward
4243907 Lamp having reduced width press-seal January 6, 1981
A tungsten-halogen lamp having a tubular envelope of quartz or high silica glass has a press-seal at one end which is reduced in width by the removal of right-angled sections from opposite lower corners of the press. The lamp further includes a ceramic base having a slot with closed ends










 
 
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