Abstract: A control means has an adjustment function in a microprocessor to adjust variations in an output to a discharge lamp due to variations in components by correcting a duty ratio of a PWM signal for varying an operating frequency of an inverter circuit so that a detected value of a second detection circuit falls within a target range. The microprocessor switches paths to transmit the PWM signal between a path passing through a feedback circuit and a path passing through a voltage follower circuit by switches a switch circuit to supply the signal through the path passing through the voltage follower circuit in adjusting output variations in the preheating mode and the starting mode.

Abstract: A tool box having a reinforced door that withstands prying and resists flexing during use. The door comprises a reinforced region including a first flange, a second flange and a third flange extending from the first edge of the door. At least one additional flap extends from an edge of the door adjacent to the reinforced region and is welded to the reinforced region to provide additional strength. In another embodiment, a second and a third additional flap is included on the door, and each additional flap may be welded to an adjacent flap or welded to the reinforced region. Multiple reinforced regions, each including at least one flange, may also extend from the door body to provide increased strength.

Abstract: The invention describes a method for communication between nodes (UR1, UR2; UC1-UC16) of a network, interconnected by a transmission channel and each identified by a node identification number in which at least one transmitter node emits at least one message to at least one message recipient node. The message comprises a description of a path (PH) between the transmitter node which emits the message and the message recipient node. The path is defined by the node that emits the message via a sequence of node identification numbers along the path itself.

Abstract: In a self-propelling road milling machine (1), particularly a (recycler or) cold-milling machine, comprising a machine frame (4) carried by a track assemblies (2,3) via lifting columns (12,13), a milling roll (6) supported on the machine frame (4) for treatment of a ground or traffic surface (8), height-adjustable side plates (10) for edge protection, arranged to rest on the ground or traffic surface (8) to be treated, a height-adjustable stripping means (14) arranged in the moving direction behind the milling roll (6) and adapted to be lowered, during operation, into the milling track (17) generated by the milling roll (6), and a control means (23) for controlling the milling depth of the milling roller (6), it is provided that at least one measuring means (16) is operative to detect the lifting, caused by the current milling depth, of a first sensor means resting on the ground or traffic surface (8), and/or the lowering of the stripping means (14) or a second sensor means onto the surface of the milling tra

Abstract: A magnetic component having a magnetic core structure includes a core body with a notched region for reducing non-essential core material. The notched region has the cross-sectional shape of a trapezoid and includes two notch walls separated by a middle wall. The notch walls are each oriented at an obtuse angle relative to the middle notch wall. The core structure reduces the cost of manufacture and the size of the magnetic component by eliminating non-essential core material from regions of the core that have little or no impact on the magnetic performance of the component. The desired magnetic flux path in the component remains substantially unaffected by the removal of the non-essential core material. The body of the core may also include one or more angled shoulders positioned at the corners of the core body to further eliminate non-essential core material.

Abstract: An electronic ballast provides controlled preheating for a discharge lamp. A power converting circuit receives a DC power input and converts it into an AC power output. A starting circuit coupled to the power converting circuit generates a high voltage for starting the lamp. A control circuit controls the power converting circuit to generate AC power output to the lamp dependent on a mode of operation. A symmetry detecting circuit determines a positive-negative symmetrical state of the output power provided to the discharge lamp with respect to ground. The control circuit has a starting mode wherein the discharge lamp is triggered to start with a high voltage generated by the starting circuit, an electrode heating mode wherein the AC power output of the power converting circuit is controlled to a first frequency for heating each lamp electrode, and a steady-state mode wherein the AC power output of the power converting circuit is controlled to a second frequency for maintaining lighting of the discharge lamp.

Abstract: A device for stabilizing a patient's arm during a surgical procedure including a base configured to fit on an operating table, the base having an upper side with a rail. A support arm having a foundation with a groove shaped to match and fit over the cross-sectional shape of the rail and slide along the rail is provided, the support arm has a proximal end and a distal end extending away from said rail. A cuff is mounted on the distal end of the support arm to support the wrist of a patient during the surgery. A standard having a foundation with a groove therein shaped and sized to fit over said rail is also provided. The standard is designed to slide along the rail and move relative to the support arm. Arcuate bicep pads are connected to said support arm and to said standard; the arcuate pads being positioned to fit about the bicep of a patient lying on an operating table on which the support device is placed.

Abstract: A putter grip and blade assembly for a golf putter including a grip having a distal end and a proximal end with the grip having an opening at the proximal end for a shaft of a putter and additionally a recess in the length of the grip for a blade; the blade being rotatable for the blade to extend from the recess of the grip; and where the majority of the sides of the blade are within the recess when the blade is in a closed position.

Abstract: An electronic ballast circuit includes a filament drive circuit that can adjust the pulse width of a pulsed heating signal in accordance with the lamp current to a gas-discharge lamp. A logic device, such as an SR flip-flop, is used to control a switch that is coupled to the primary winding of a filament drive transformer coupled to the lamp filaments. The logic device opens and closes the switch device to generate the pulses of the pulsed heating signal and thus controls the pulse width of the pulses. A clock signal triggers logic device to start a pulse while the end of the pulse is determined by a signal level across a resistor in series with the primary winding of filament drive transformer. Once this signal level is at or above a threshold level, logic device switches the switch device to end the pulse.

Abstract: An electronic ballast for a high intensity discharge lamp includes a control circuit for switching between a first operation period to operate a starting voltage generating circuit to start the lamp and a second operation period to maintain a steady arc discharge after the lamp has started, based on a detection result from a lighting detector circuit. The control circuit further includes a measurement circuit to measure operation information of the first operation period, circuits to control operation during the first operation period based on a result of measurement from the measurement circuit, and a reset circuit to initialize the operation information of the first operation period measured by the measurement circuit upon continuation of the second operation period for a reference time or longer.

Abstract: A wheel servicing machine provides a rotatable shaft having a retractable rod slidably disposed in a center bore of the rotatable shaft, wherein the retractable rod is longitudinally moveable relative to the shaft. A rotatable locking member is disposed on the distal end of the retractable rod. The locking member includes one or more mounting studs protruding radially therefrom for engaging a centering cone or a wheel clamp. A tool support arm including a stage protrudes from the base. A tool adapted for engaging a sidewall of a tire is attached to support arm. A second stage including a second tool configured for engaging the opposite sidewall of the tire may also extend from the base. A platform assembly having one or more spring-loaded rollers is attached to the base in some embodiments. A longitudinally moveable travel arm with a jointed auxiliary arm is also provided. A wheel clamp having a plurality of arms, wherein at least one arm is moveable relative to at least one other arm, is also provided.

Abstract: An electronic ballast is provided for adjustable filament preheating of a discharge lamp based on output current symmetry. A power converter receives DC power and outputs AC power. A starting circuit generates a high voltage for starting the lamp. A control circuit controls the AC power output from the power converting circuit. A symmetry determining circuit determines a positive-negative symmetrical state of the AC power output to the lamp with respect to ground. After lamp startup, the control circuit enters a filament heating operation in which the output frequency of the power converting circuit is controlled to a first frequency. At one or more predetermined current detection points during the filament heating operation, the control circuit checks the symmetry state.

Abstract: An electronic ballast is provided for powering a high intensity discharge lamp. A voltage step-down circuit is arranged to reduce an input DC voltage. An inverter circuit includes at least one high frequency switching element is and arranged to convert the reduced voltage to a high frequency AC voltage. A resonant circuit receives the high frequency voltage and is further coupled to the discharge lamp. A voltage step-down control circuit controls the DC voltage output from the voltage step-down circuit. A driving circuit supplies a driving signal to the switching element of the inverter, and further adjusts a driving frequency of the driving signal, thereby controlling the high-frequency voltage. The high frequency voltage in a first operating mode is controlled to a low level wherein the lamp is prevented from starting. The high frequency voltage in a second operating mode is controlled to a high level wherein the discharge lamp can be started.

Abstract: A method and device for determining the phases in a multi-phase electrical system includes detecting a first waveform on a phase of the multi-phase system In a first position of the multi-phase electrical system timed data is stored, synchronized with the first waveform. A second waveform is detected in a second position of the multi-phase electrical system, on an indeterminate phase of the system. Data is obtained relative to the phase on which the second waveform was read on the basis of the phase shift between the timed data and the second waveform.

Abstract: A wheel servicing machine provides a rotatable shaft having a retractable rod slidably disposed in a center bore of the rotatable shaft, wherein the retractable rod is longitudinally moveable relative to the shaft. A rotatable locking member is disposed on the distal end of the retractable rod. The locking member includes one or more mounting studs protruding radially therefrom for engaging a centering cone or a wheel clamp. A support arm including a travel stage protrudes from the base. A tool adapted for engaging a sidewall of a tire is attached to the support arm. A second stage including a second tool configured for engaging the opposite sidewall of the tire may also extend from the base. A platform assembly having one or more spring-loaded rollers is attached to the base in some embodiments. A longitudinally moveable travel arm includes a jointed auxiliary arm extending therefrom. A wheel clamp includes a plurality of arms, wherein at least one arm is moveable relative to at least one other arm.

Abstract: A bobbin is designed to reduce the voltage stress between the winding layers of the inner winding of an inductive electronic component. A partition transversely extends from the winding surface of the bobbin to divide the winding surface into separated winding surface sections. A partition defines a passage for winding the coil from one winding surface section to the other winding surface section. Passage openings are positioned on each winding surface section relative the winding surface so that a portion of the partition is always between the passage opening and the oppositely disposed winding surface section.

Abstract: The invention presented is a method for applying heat spreaders to a plurality of plasma display panels, including (a) providing a plurality of heat spreader composites, each of which comprises a heat spreader material having an adhesive thereon and a release material positioned such that the adhesive is sandwiched between the heat spreader material and the release material; (b) removing the release material from a plurality of the composites; and (c) applying at least one of the composites to each of the plurality of plasma display panels each such that the adhesive adheres the heat spreader material to the plasma display panel.

Abstract: A lamp ballast is provided requiring less size and cost for powering a discharge lamp. An inverter circuit converts a DC voltage from a DC power source into a voltage having a determined frequency, and supplies the converted voltage to the discharge lamp inserted between a pair of output ends of the inverter. A resonant circuit includes an auto-transformer and a resonant capacitor, and supplies an output voltage corresponding to a frequency of the rectangular wave voltage of the power supply circuit to the discharge lamp. A voltage detection circuit detects an output voltage of the resonant circuit based on a potential of the resonant capacitor. A control circuit has a startup control mode to set the frequency of the rectangular wave voltage based on the detected voltage from the voltage detection circuit, wherein the output voltage of the resonant circuit exceeds a starting voltage of the discharge lamp.

Abstract: An electronic ballast is provided for quickly restarting a high-pressure discharge lamp after shutdown. The ballast includes a power supply circuit for supplying power to the lamp from a commercial power source, a start voltage generation circuit for supplying a starting high voltage to the lamp and a control circuit for controlling the power supply circuit and the start voltage generation circuit. A lighting transition module detects a startup or shutdown of the lamp. A lighting time count module measures a lighting time of the lamp when startup is detected. A comparison module compares the lighting time and a first reference time when shutdown is detected. A delay time setting module sets a predetermined delay time of the start voltage generation circuit based on the comparison result. Operation of the ballast is halted from a startup trigger until lapse of the delay time, and then the high starting voltage is supplied to the lamp.