General Electric Company

Robert S McFeely

David Joseph Kachmarik

Jozsef Fulop

Ferenc Papp

Istvan Wursching

Frederick Hetzel

Kelvin B Belle

Joseph Michael Ranish

Raymond Albert Fillion

Laszlo Sandor Ilyes

Vito J Arsena

Joseph C Oberle

David O Wharmby

Mahomed Hanif Girach

Leon F Chamberlain

Brian M Ronald

Steven John Everest

Donald W Kuk

A lamp securing device for securing a lamp ( ) to a housing ( ) including a retainer ( ) including a peripheral portion that bounds an opening ( ) of sufficient size for receiving a neck ( ) of the lamp ( ). The retainer ( ) includes a plurality of flanges ( ) along the opening ( ) which engage the neck ( ) of the lamp ( ) to securely attach the retainer ( ) to the lamp ( ).

Lamp securing device

A molded lamp base receives a press seal of a lamp. Internal walls of the base define a cavity open at one end to receive the press seal portion of the lamp. The side walls have a thickness dimension and a width dimension substantially conforming to the peripheral dimensions of the press seal portion. At least one raised bead extends inwardly from the cavity side wall and is dimensioned for a friction fit with the periphery of the lamp to hold the lamp securely in base. In one embodiment, the beads are located in semi-circular recesses disposed about the exhaust tube portion of the lamp while in another embodiment, the beads are spaced outwardly therefrom.

Wedge base lamp

A coil assembly for an electrodeless fluorescent lamp comprises a hollow ferrite core 30, and a coil 31. The core is retained on a base 32 by a coil former 34 surrounding the core. The core 30 is retained in the former 34 by a circlip 33 or projections. The coil 31 is wound on the former. Pins 36 to which the coil is soldered connect the coil to an energizing circuit.

Coil assembly for an electrodeless fluorescent lamp

A fluorescent lamp includes a lamp tube having first and second ends and containing fill materials for causing light generation when provided with electrical power. The lamp further includes first and second power-transferring means at the first and second ends of the lamp tube, respectively, for providing the fill materials in the lamp tube with electrical power. Also included is a thermal heat shield separating the first power-transferring means from ballast circuitry which supplies power to the first power-transferring means and which has a lifetime that becomes substantially less as its operating temperature increases. The thermal heat shield is constructed so that it reflects back to the first power-transferring means and any adjacent portion of the lamp tube sufficient radiant energy to reduce the operating temperature of the ballast circuitry by more than about one degree Celsius compared with the absence of the heat shield.

Fluorescent lamp with thermal heat shield between lamp tube and ballast

A lamp cathode-to-ballast interconnect is provided in combination with a lamp having elongated cathodes and ballast circuitry for supplying power to the cathodes. The lamp cathode-to-ballast interconnect comprises a plurality of conductive clips connected to the ballast circuitry. Each clip has a generally flat portion connected at a first end to ballast circuitry and has a pinching groove formed through the flat portion and extending to a cathode-receiving opening at a second end. The interconnect further comprises a loom for holding the lamp cathodes. The loom comprises, for each cathode, a pair of cathode-receiving support grooves separated by a space in which a second end of an associated conductive clip is to be received. Walls of each of the pair of cathode-receiving support grooves grip therein-received portions of the cathode with sufficient force to enable a gas-tight contact to be made with its associated conductive clip when the cathode is received within the pinching groove of the clip. In a method of connecting elongated cathodes from a lamp to ballast circuitry for a lamp, the cathodes are gripped and inserted by machine implementation into respective pairs of cathode-receiving support grooves of the loom. A conductive clip is moved into a respective clip-receiving space in the loom so that the pinching groove of the clip receives and pinches a cathode and completes a gas-tight connection between the clip and the cathode.

Lamp cathode-to-ballast interconnect and method

Growing community of inventors

Valley View, OH, United States of America

Robert S McFeely