Abstract: Metal halide lamps having better lumen maintenance over the life of the lamp contain metal frame parts whose surface is oxidized either prior to lamp assembly or oxidized in-situ during operation of the lamp by oxygen or an oxidizing agent present inside the outer vitreous envelope.

Abstract: An electric incandescent lamp having improved means for both physically positioning and controlling the light output from a filament light source is disclosed. The lamp construction can further employ a reflective film for improved efficiency of lamp operation while a halogen substance can also be included in the inert gas filling for this purpose. A method to manufacture the disclosed lamp improvement is also provided.

Abstract: This invention relates to a glass reflector and tungsten-halogen lamp combination wherein the lamp is cemented into the glass reflector with an aluminum phosphate cement composition which comprise a mixture of aluminum phosphate containing excess phosphoric acid, relatively small particle size alumina and a mixture of relatively medium and coarse particle size inert filler materials and wherein the lamp contains a hermetic seal between quartz and a molybdenum foil with that portion of the foil in the seal area which is exposed to an oxidizing environment coated with alkali metal silicate.

Abstract: A current limiting circuit interrupter consisting of a modular unit housed in an insulating case and provided with two fixed contact arms and two movable contact arms. The movable contact arms can be actuated automatically by means of a rod coupled to an operating mechanism as well as by means of an electromagnetic actuator. The operating mechanism includes a lever and a rotating bracket arranged to hold the movable contacts in an open condition when the electromagnet within the electromagnetic actuator is de-energized.

Abstract: A starting aid with an autotransformer arranged in a parallel manner with respect to a gaseous discharge lamp is disclosed. The parallel arrangement lowers the current carrying capabilities necessary for the starting aid to handle relative to a serial arrangement. The parallel arranged starting aid by appropriate selection of its component values provides for the application of the starting aid to various sources of alternating current used for the excitation of a variety of types of gaseous discharge lamps.

Abstract: Improved support means are provided to center the filament light source of an incandescent lamp within an open-ended transparent cylinder coated with an infrared reflecting film. Such filament mount construction is adapted for use in a tungsten-halogen lamp. A reflector lamp utilizing the improved tungsten-halogen lamp as a light source is also disclosed.

Abstract: A fluorescent lamp structure having a light transparent jacket surrounding the lamp. The chamber between the lamp and jacket is filled with a fluid (or mixture of fluids) which transitions between the liquid and vapor phases. The fluid extracts heat when the lamp wall temperature rises above a predetermined temperature causing the fluid to vaporize. The fluid condenses to form a partial vacuum in the chamber below that temperature.

Abstract: An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the integrated protection unit cover from the environment. A combined overcurrent trip actuator and multiple accessory unit can be field-installed within the integrated protection unit. The combined actuator-accessory unit includes electronic control circuitry for the accessories along with mechanical trip and reset interface components. The reset mechanism allows the actuator-accessory unit to become reset without interferring with the operation of the integrated protection unit.

Abstract: Metal lamp bases for electric lamps fabricated from certain relatively high copper and low zinc content copper alloys and lamps employing same are resistant to cracking in corrosive environments.

Abstract: Electronic circuit breaker components are selectively coated with zinc and tin compounds to protect the components from the environment and to promote lubricity. Selected components within the operating mechanism, actuator and crossbar assemblies are coated with zinc phosphate followed by an over-coating of tin phosphate.

Abstract: The invention relates to apparatus for epitaxial processing using metal organic molecular beams. The MOMBE apparatus employs a manifold for supplying metal organic vapor to a reactor which is operated under vacuum. The manifold includes a bubbler in which MO vapor is formed and mixed with a carrier gas. The bubbler provides flexible, three parameter control of the MO reagent permitting use with MO reagents of low vapor pressure. A compensation flow is provided parallelling the reagent flow and employing four valves which are ganged and switched so as to supply the MO carrier gas mixture either to the reactor line or to the vent line and maintain equal flows and pressures during this switching operation. The apparatus is capable of forming very thin reproducible epitaxial layers.

Abstract: An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the circuit breaker cover from the environment. An auxiliary switch unit is one such accessory component which can be field-installed without affecting the integrity of the circuit breaker and which is connected to a remote indicator connected by external wire conductors to signal the "ON" or "OFF" condition of the circuit breaker contacts. The auxiliary switch unit enclosure is specially shaped to protect the auxiliary switch from damage due to excess tension on the external wire conductors.

Abstract: A circuit breaker enclosure consists of a cover and a case designed for robotic assembly of the circuit breaker components. A current transformer assembly and a printed wire board containing the electronic trip unit circuit are precisely positioned within the case and cover by means of a transitory circuit breaker case support platform. The transitory support platform includes four upstanding posts that pass through openings formed in the circuit breaker case and are received within corresponding openings through the circuit breaker cover. Leads extending from the current transformer assembly within the case become automatically positioned within corresponding openings through the printed wire board by means of tapered lead-in openings formed within the circuit breaker cover.

Abstract: A paperboard carton for simultaneously protecting and displaying a twin tube or U-tube type of fluorescent lamp which comprises a rectangular sleeve having a panel which fits into the longitudinal space separating the leg members, between the base of the lamp and the transverse member, to hold the lamp in place in the carton.

Abstract: A ballast circuit and method of operating gas discharge lamps are disclosed. The ballast circuit generates a relatively low frequency regulated square-wave current which advantageously provides for operating the gas discharge lamps during their run mode. The square-wave current delivered to the electrodes of the gas discharge lamp reduces or substantially eliminates the cataphoresis effects typically created by D.C. and 60 Hz operation of the gas discharge lamp while also reducing or substantially eliminating the detrimental acoustics resonance effects typically created by operating the gas discharge lamps at relatively high frequency of excitations.

Abstract: A fast operating disconnect switch minimizes the arc that occurs when the switch contacts are opened or closed by operation of a rotor assembly while the switch is electrically energized. A powerful operating spring within the operating mechanism under the control of a handle operator assembly overcenters upon the ON-OFF as well as OFF-ON movement of the handle operator. The handle operator assembly is adapted for either left-hand or right-hand mounting to a common rotor assembly.

Abstract: A voltage surge suppression circuit for a low voltage coaxial cable comprises a gas tube connected across the signal and shield conductors and an MOV connecting the shield conductor to a ground. In the case of a balance signal line comprising two conductors, a first gas tube connects one line to ground and a second gas tube is connected across both conductors. A third gas tube may connect the other conductor to ground in which case the second gas tube may be optional. The ground is preferably a ground associated with a power line voltage surge suppression means.

Abstract: A plug-in starting aid for generating high voltage pulses in the ballast circuit of high intensity discharge lamp comprises interconnected electrical components mounted in a frame of insulating material. The frame has three terminals projecting out one side and engageable in the cooperating terminals of a connector block in which the starting in may be plugged in. The terminals are also engageable by standard mating wire terminals when the starting aid is used without a connector block.

Abstract: This luminaire comprises a reflector of transparent material having a prismatic outer surface that includes many juxtaposed prisms. Each prism includes two reflecting surfaces meeting at an apex and having portions disposed to effect total internal reflection of a large percentage of the light rays from the light source of the luminaire. Immediately adjacent the outer surface of the reflector, there is a cover of substantially transparent material that protects the prism reflecting surfaces from deposits that could interfere with their total internal reflecting properties. The cover is spaced from the prismatic outer surface at substantially all points on the prism reflecting surfaces where such reflecting surfaces are disposed to effect total internal reflection of the light source rays.

Abstract: A programmable system controller is disclosed which is particularly suited for monitoring a correctly responding to user commands initiated by telephone and switch activations. The switch activations may be generated by switches of the two or three wire maintained type or momentary switches. The switch inputs are routed to a switch conditioning circuit that compensate for such problems as switch bouncing or noise levels associated with the switches. The telephone commands, in the form of an electrical signals, are routed directly to the programmable device of the system controller. The programmable system controller comprises the programmable device which responds to the switch conditioning circuit to determine the particular type of switch generating the switch command and the validity of the switch command. The programmable device in response of the valid commands and telephone commands provides a digital quantity to a sequencer, which, in turn, activates output devices such as one or more banks of relays.