Abstract: A molded case circuit breaker includes an operating handle yoke that contacts the cradle operator and drives the operating mechanism springs over-center when the circuit breaker operating handle is moved from its RESET to its ON position. The contact between the handle yoke and cradle operator accelerates the over-centering of the powerful operating mechanism springs.

Abstract: An elongated tubular lamp such as an arc lamp or tungsten halogen lamp mounted in a reflector or lamp mount by means of a long and a short mount wire is more resistant to breaking off the mount wires if the short mount wire is smaller in diameter than the long mount wire, but not smaller than the diameter of the lamp lead wire to which it is welded in combination with the lamp lead wire being molybdenum alloy having a recrystallization temperature at least about 200.degree. C. higher than molybdenum.

Abstract: A positive trip indication spring is used with circuit breakers that provide colored trip indication through a visual access opening in the circuit breaker cover to ensure that the trip indicia on the circuit breaker operating handle align with the visual access opening upon the occurrence of a trip condition. The trip indication spring cooperates with the powerful circuit breaker operating mechanism springs to provide additional bias to the circuit breaker operating handle to move the operating handle to its fully "TRIPPED" position.

Abstract: A compact circuit breaker containing an electronic trip unit for interrupting overcurrent conditions within a protected circuit is made operable over a wide operating current range by means of current transformers having multiple turn primary windings. The primary windings are selected to provide a constant ampere-turns ratio to the current transformers without changing the size of the secondary winding or the volume of the transformer core.

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 interfering with the operation of the integrated protection unit.

Abstract: In this luminaire, there is a dome-shaped reflector having a top, a bottom, and a central axis on which a light source is adapted to be positioned. A metal wall of the reflector has an inner surface extending about the central axis and defining a bottom opening through which the inner surface reflects light received from the source. The angular distribution about the central axis of the light reflected from the inner surface through the bottom opening is controlled by many elongated facets on the inner surface extending in a top-to-bottom direction with respect to the reflector. The facets are arranged about the central axis in side-by-side relationship, with juxtaposed facets being at an angle with respect to each other so as to form alternating ridges and grooves between juxtaposed facets. The individual ridges, when viewed in transverse cross-section, each include two of the facets intersecting at an apex that is located on a reference line for each ridge extending radially outward from said central axis.

Abstract: Metal halide vapor arc lamps for reprographic and projection processes emitting in the blue, green and red bands with excellent primary color separation and having long life and lumen maintenance contain mercury, zinc, indium, lithium, thallium, a halogen and a rare earth metal such as lanthanum, scandium or dysporsium in the arc tube.

Abstract: A bi-stable interlock arrangement allows two circuit interruption devices such as electric circuit breakers and electric disconnect switches to be interlocked such that only one such device can be turned ON at one time. The interlock is used with main and auxiliary power sources to ensure that only one source of electrical power is activated at one time.

Abstract: A package for shipping fluorescent lamps comprising a rectangularly shaped first carton closed at both ends and containing the lamps within and being disposed inside a second rectangularly shaped carton with the longitudinal axis of both cartons parallel and the first carton being rotated inside the second carton such that the four longitudinal sides of the first carton contact the respective side wall inside the second carton to form four triangularly shaped cavities and wherein two of the cavities contain a triangularly shaped spacer to prevent rotation of the first carton within the second carton.

Abstract: A molded case circuit breaker having a pair of movable contact arms arranged within a single pole utilizes a shunt clip between the movable contact arms to insure electrical continuity between the contact arms and the support base during intense short circuit interruption. A compression spring-driven camming arrangement insures good electrical connection between the circuit breaker contacts under steady quiescent operating conditions while preventing reclosing of the contacts during short circuit interruption.

Abstract: A molded case circuit breaker movable contact arm electrically connects with the circuit breaker load terminal requiring only a small diameter auxiliary electrical conducting braid by pivotally arranging the contact arm within its support. The contact arm is nickel-plated prior to attachment of the contact to insure high current circuit interruption withtout damage to the contact or the contact arm.

Abstract: The invention relates to an imager for simultaneously obtaining two images of differing color bands of the same object field using a single two dimensional photodetector array. A Fresnel-biprism with two different color filters on the respective left and right aperture halves convergently displaces the two images. An objective lens focuses the filtered convergent images upon a photodector array, the left and right halves of which are covered by a second filter pair. The second pair of filters pass the same color bands as the first pair of filters but the order of the color bands bands is reversed from left to right. As a result of the filtering and convergence, the photodetector array, aligned with its columns parallel to the filter boundaries, responds with its left half to one color image and with its right half to the other color image.

Abstract: A dither scanned IR imaging system is disclosed for achieving panoramic coverage. For complete 360.degree. azimuth coverate, the field of view is divided into eight sectors, each imaged by a separate objective lens upon a loose packed 2D photodetector array. The photodetectors are tight packed in the array columns while the columns are loose packed, being on centers spaced by integral numbers of photodetector dimensions (i.e., pixels). The image is dithered the distance between columns over the array by a pair of counter rotating IR refractive discs of wedge shaped cross section. A full-frame partial-sample of the image is taken each time the image advances one pixel until the image has been fully sampled. Tight packed arrays may also be employed if additional means are provided to partially sample the image. In achieving 360.degree.

Abstract: Metal halide vapor arc lamps for reprographic and projection processes emitting in the blue, green and red bands with excellent primary color separation and having significant blue emission at a wavelength of about 450 nm, contain a fill of indium, zinc, lithium and thallium iodides.

Abstract: Sockets for receiving metal lamp bases of electric lamps which contain metal parts fabricated from certain relatively high copper and low zinc content copper alloys are resistant to corrosion and to corrosion cracking in corrosive environments.

Abstract: A circuit breaker containing an electronic trip unit utilizes a digital keypad and display to enter and display the trip parameters. The trip parameters are determined by means of a setpoint value that is incremented by means of an algorithm whenever the trip parameters are changed.

Abstract: A hybrid interconnection structure is disclosed having application to the fine pitch interconnection of delicate semiconductor chips. The invention entails the use of a beam lead interconnect in which patterned conductor runs are provided on the upper surface of a silicon chip. The conductor runs extend beyond the chip to form a paired set of beam leads. One set of beam leads makes contact with terminals on the upper surface of one chip and the other set of beam leads makes contact with terminals on the upper surface of another chip. The interconnect chip is set on a substrate common to the interconnected chips with its top surface slightly (normally less than 1-2 mils) above the top surfaces of the interconnected chips. This limits any downward deformation of the beam leads in the bonding process to insure reliability of the bond for fine pitch application.

Abstract: A lamp driver circuit is presented herein for driving a lamp circuit with an AC squarewave voltage at a relatively high frequency. The driver circuit includes a self-oscillating half-bridge circuit having a pair of input terminals connected across a DC voltage supply, which may be obtained from rectifying an AC voltage signal, and a pair of output terminals connected across a lamp circuit including a lamp, either a resistive lamp or a gaseous discharge lamp, to be energized. The circuit also includes a pair of capacitors connected together in series across the input terminals and having a junction therebetween connected to a first one of the output terminals. The bridge circuit also includes first and second switching transistors connected together in series across the input terminals.

Abstract: A combined glare and heat shield configuration is disclosed for vehicle headlamp applications. Such composite heat shield member is configured and located inside the headlamp assembly with particular respect to the light source so as to avoid shadowing by this lamp component in the projected light beam pattern. Efficacy of the hermetically sealed electric lamp providing a light source in the present vehicle headlamp construction can be further improved with an infrared reflective coating being deposited on the lamp envelope.