Abstract: An ion implanter including a time of flight energy measurement apparatus for measuring and controlling the energy of an ion beam includes an ion source for generating the ion beam, an ion acceleration assembly for accelerating the beam resulting in the beam comprising a series of ion pulses having a predetermined frequency and beam forming and directing structure for directing the ion beam at workpieces supported in an implantation chamber of the implanter. The time of flight energy measurement apparatus includes spaced apart first and second sensors, timing circuitry and conversion circuitry. The time of flight energy measurement apparatus measures an average kinetic energy of an ion included in a selected ion pulse of the ion beam. The first sensor and a second sensor are disposed adjacent the ion beam and spaced a predetermined distance apart, the second sensor being downstream of the first sensor.

Abstract: A liquid crystal display including driver circuitry which applies a series of voltage pulses at a frequency of approximately 60 Hz. to cumulatively change a reflectance state of a pixel in an array of pixels at a near video updating rate. The display includes a near video rate updating portion, while the remainder of the display has a slower updating frequency or rate. The display is comprised of a bistable cholesteric liquid crystal material sandwiched between an electrode array having a plurality of row and column electrodes. In one operating embodiment, the driver circuitry generates a unipolar row and column waveforms, the row waveforms being applied to the row electrodes and the column waveforms being applied to the column electrodes of the near video rate updating portion. Approximately every 16 milliseconds, a pixel in the near video rate updating portion receives a control voltage pulse corresponding to the difference between the row and column waveforms.

Abstract: A portable data collection device having a modular imaging-based dataform reader. The dataform reader includes a two dimensional imaging assembly adapted to image and decode a dataform printed using ink that fluoresces when illuminated by ultraviolet light. The imaging assembly includes a two dimensional photosensor array and is actuatable to generate a signal representative of reflected illumination from a target area of the imaging assembly and further includes an illumination assembly having a strobing ultraviolet light source. The illumination assembly includes a pair of flash tube strobe lights which have their output illumination filtered through respective ultraviolet filter thereby permitting only illumination in the ultraviolet range to exit the dataform reader and illuminate the imaging target area. The high intensity, strobing light of the ultraviolet light source permits a reduced exposure period. A targeting illumination assembly is also provided to aid in aiming the device at a target dataform.

Abstract: A paint draining grid adapted to be inserted in a container of liquid that is suitable for application with a roller mounted on a conventional roller frame. The paint draining grid includes a frame having first and second spaced apart frame members wherein each bracket includes a hooked end portion for releasably attaching the paint draining grid to an upper rim of the container such that a grid member extends into an interior region of the container. The grid member includes a plurality of openings for permitting drainage of liquid and is secured between the first and second frame members. At least one squeegee, is affixed to each of the first and second frame members.

Abstract: A process of recovering iron values and separating zinc oxides and other contaminants from steel mill waste metal oxides, such as blast furnace dust, BOF dust, mill scale and oily sludges, characterized by iron metallization levels up to 95% or more and zinc oxide removal in excess of 99%, and including the steps of blending the oxides with coke breeze in an amount sufficient to provide a total carbon content of 16% to 22%, the coke breeze having a particle size of 50% or more plus 60 mesh or larger, briquetting the blend to form briquettes having a thickness ranging from 1/2" to 3/4", and firing the briquettes in a rotary hearth furnace to metallize the iron and evolve zinc and other oxide contaminants.

Abstract: A system for the detection of fire in an apparatus or device having a fan and a pump, comprising means 20, 25 for detecting the presence of a pre-condition of fire, control means 30 for deactivating the fan on detection of said precondition, and fire detector means 35 for detecting smoke or fire in the absence of air movement.

Abstract: A gear arrangement 10 which comprises a first disc member 12 rotatable about a first axis 14 and carrying rings 16 of teeth 18, the rings 16 being centered on the axis 14 and at respective distances therefrom. A second member 20 is rotatable about a second axis 22 and carries further teeth 24. The second member can move toward and away from the first axis 14. The teeth 18, 24 are so formed as to allow the second teeth 24 to mesh in driving manner with each ring of teeth 18 as the second member 20 moves toward and away from the first axis 14. In this way, the transmission ratio of the gear arrangement can be changed.

Abstract: An integrated power and data communications hybrid cable assembly for local area computer network is disclosed. The network includes a hybrid cable integrating both power supply and data communications into one physical cable. For each computer workstation served, a length of cable extends between a panel and an outlet. The panel includes a cabinet defining an interior region and an interior barrier dividing the cabinet interior region into a power section and a data section. The interior barrier includes barium ferrite to magnetically isolate the data section from the power section. The hybrid cable is electrically coupled between an outlet and the panel to provide power to a computer workstation electrically coupled the outlet and to provide for data transfer between the panel and the computer workstation.