Abstract: A power management system and method of operation is disclosed. The power management system may include a controller associated with each load or subsystem of a plurality of loads or subsystems to determine a lowest operational voltage based on an operating point of the associated load or subsystem. The power management system may further include a voltage link to supply a highest voltage of the lowest operational voltages.

Abstract: An apparatus and process are provided for regulating the voltage across a resistive or inductive load by phase angle control of the applied load voltage. Instantaneous load voltage is compared with a preset reference value to control the phase angle of the applied load voltage by means of rms voltage approximation feedback control. A visual display can be provided to assist the user in establishing the preset reference value.

Abstract: The invention relates to novel nucleic acid reference standards comprising a nucleic acid comprising a known target sequence bound with a microparticulate binding agent where the binding agent includes liposomes, polyamines (e.g., nylon), siliceous compounds (e.g., silica gel, fumed silica, diatomaceous earth, glass particles, amine-modified silica, and the like), zeolites (e.g., low alumina zeolyte), polystyrene (e.g., amine-modified polystyrene, carboxy-polystyrene particles, and the like), chitin, chitosan, and combinations of these compounds. The reference standard is useful for use as a standard in any nucleic acid assay where the presence or absence of a nucleic acid of interest is being assessed. The reference standard is stable and provides a control for assessing whether the nucleic acid assay was performed properly. The invention further relates to methods of producing such reference standards and kits for using and producing the same pursuant to the teachings of the invention.

Abstract: An exemplary oil delivery system comprises a dual pump system configured for reducing the buildup of pressure by unloading one or both pumps, thus reducing the buildup of heat within the hydraulic system. The dual pump system is configured for delivering oil in combination to a single hydraulic system or to two completely separate hydraulic systems. In addition, the oil delivery system can also be configured to unload one or both of the pumping sections at a pre-determined speed to again limit the flow to any existing open centered hydraulic system. As a result, the oil delivery system recirculates oil back to the reservoir and/or the inlet to the pump in the absence of a buildup of pressure, and thus an absence in the buildup of heat to conserve energy.

Abstract: An apparatus includes a body, an adapter and a seal ring. The apparatus may be coupled to provide a seal that has a primary metal to metal seal and a secondary seal obtained via extrusion of the seal ring.

Abstract: A position sensor comprises a substrate having an array of pressure sensors and a membrane overlying the substrate. The membrane includes physical parameters which vary with position. The membrane may include discontinuous regions and protrusions which affect the way in which forces on the membrane are distributed to the substrate. A pressure sensor may also include a controller for receiving pressure information from the substrate, with a signal processor being programmed to localize the depressed region or regions of the substrate.

Abstract: A method for winding a stator of a multi-phase motor includes successively winding each of a plurality of teeth on the stator with a continuous winding wire to connect each of the phases in the motor together. The wound wire is disconnected between any two phases where respective ends of the two phases connected by the winding wire are not neutral ends. A jumper wire is connected between a neutral end of any one of the phases to a neutral end of at least one other phase if the neutral end of any one of the phases is not connected to the neutral end of at least one other phase by the winding wire.

Abstract: A two, three or four-way valve includes two stages each with working valve components linked by a feedback spring so that a first stage servo unit is auto-nulling and the stroke of the valve member in a second stage valve unit is proportional to the input current to the first stage. An inherently balanced clevis member in the first stage controls flow of pressurized control media, which in combination with direct pressure flow, controls the position of a spool member in the second stage. The spool in turn controls pressure flow to a either one or two metering or input/output flow ports. Transient movement of the clevis due to change in input current to a magnetic servo drive assembly is opposed by bending of the feedback spring arising from the associated movement of the spool, which returns the clevis to its centered null position and stops the spool.

Abstract: A touch pad for controlling electronic equipment includes a deformable touch surface and a compressible pad body in contact with the touch surface. The compressible body is formed from a material which scatters or diffuses light within the material. Multiple sources of light or other wave energy are directed into the interior of the substrate to form multiple illuminated cells inside the pad body. Each illuminated cell forms an integrated cavity within the pad body. A detector in communication with the compressible material detects light intensity within the integrated cavity. A processor receives signals from the detector and converts the signals into useable information relating to the position of regions of compression of the pad.

Abstract: A rotating machine which includes a stator having a number of field winding slots, a number of field windings disposed in each of the field winding slots, at least two of the field windings have an outer jacket; and a number of conductive wires disposed within and enclosed by the outer jacket such that longitudinal passages are defined between the conductive wires. A pump circulates a coolant into and from the rotating machine through the longitudinal passages. Preferably, the rotating machine includes a housing that has a cavity for acceptance of the stator therein. The housing and stator define and second plenums at first and second ends of the stator. The coolant enters the rotating machine into the first plenum and exits the rotating machine from the second plenum.

Abstract: A fueldraulic metering valve uses pressurized liquid fuel to control flow of gaseous fuel to a jet engine combustion chamber. The valve has a disconnectable body defining a piston chamber and a cavity for an interchangeable venturi nozzle module, both disposed about a stroke axis. A servo valve controls flow of the liquid fuel through the piston chamber and supply and return ports. The liquid fuel drives a piston and pintle assembly to open and close off the throat of the venturi passageway, and thereby control metering of the gaseous fuel, which flow through separate intake and exhaust ports. The gas and liquid fuel are separated by a high temperature seal. The liquid fuel is routed through the piston and a special baffle to dissipate heat transferred to the seal and piston from the hot gaseous fuel. A LVDT position transducer provides feedback to the controller for correcting position error.

Abstract: A thermal flow control valve uses a cylindrical valve sleeve in a stepped bore to regulate fluid flow between an inlet and an outlet. A wax filled actuator is coupled to the valve sleeve to move the sleeve from an open position in which radial flow openings in the sleeve communicate with a larger diameter portion of the stepped bore to a closed position in which the radial flow openings are closed by a sleeve chamber closely surrounding the sleeve. A flow-through end cap closes one end of the stepped bore and provides an axially aligned fixed stop for the actuator piston. Two-way, three-way and mixing embodiments of the valve are disclosed.

Abstract: A laser absorption spectrometer for making measurements of absorption spectra which includes a wavelength sensor that can measure the average wavelength of pulses from a laser on a pulse-by-pulse basis and that can measure the internal wavelength variation of laser pulses. The laser absorption spectrometer can be used with pulsed lasers like the quantum cascade laser to perform sensitive measurements of the absorption spectra even when there is pulse-to-pulse variation of average wavelength and when there are internal changes in the wavelength of the pulses.

Abstract: A rotating machine including a rotating shaft: a plurality of conductive rotor bars spaced from the rotating shaft and fixed to the rotating shaft through at least one intermediate member, where at least one of the plurality of conductive rotor bars have at least one first internal conduit; and a circulator for establishing a coolant circulation through the first internal conduit.

Abstract: A method and apparatus for operating a security gate is disclosed which may comprise a drive mechanism arm having a first end and a second end, and including a security gate attachment member connected to the first end of the drive mechanism arm; a drive mechanism actuator operatively connected directly or indirectly to the drive mechanism arm and adapted to move the drive mechanism arm along a predefined path in relation to the actuator in response to operation of the actuator; and a release mechanism adapted to release the connection of the security gate attachment member to the first end of the drive mechanism arm in response to the application of a force to the security gate attachment member in a direction other than the force applied to the security gate attachment member by the drive mechanism arm in response to the operation of the actuator to move the security gate drive mechanism arm along the predefined path.

Abstract: A programmable coolant nozzle system includes a coolant fluid nozzle fixed to a manifold so that the centerline of the nozzle and the centerline of the manifold block are perpendicular. This feature allows coolant fluid to be rotatably directed from the nozzle at great pressure and/or volume with an actuator that does not have to withstand severe tortional force. The invention includes a method which allows coolant fluid to be rotatably directed from a nozzle assembly and to be commensurate with any change in position of the working tool of a machine tool center.

Abstract: The specification discloses a controller housing that utilizes card guides that may be installed and removed without the use of tools. Various arrangements of the controller housing with and without the card guides allows for the controller housing to accept electronic circuit cards of varying sizes. Thus, if a manufacturer desires to increase the number of points on an input/output card, for example, those additional points need not necessarily be contained in a card having the same form factor. Instead, the manufacturer may provide a larger form factor card and that card may be inserted into the controller housing by appropriately adjusting the location of the card guide within the particular opening into which the new card is to be inserted.

Abstract: A thermal management device is for a electronic apparatus, and includes a thermally conductive member, and elastic and thermally conductive material. The member is for engagement with a heat sinking portion and for conducting thermal energy. The member has two legs that are deflectable relative to each other. The first leg is configured for location proximate to an electronic component and the second leg is configured to extend toward the heat sinking portion. The member has a connecting portion interconnecting the two legs such that thermal energy can travel between the legs, and such that a spacing is provided between the two legs. The elastic and thermally conductive material is located in the spacing between the legs such that the thermal energy can travel from the first leg through the material and to the second leg, and such that the two legs may deflect relative to each other.

Abstract: An air flow sensor including a temperature dependent resistor device, a first circuit and a second circuit. The first circuit applies a voltage to the temperature dependent resistor device until it reaches a first temperature. The first circuit includes a first reference resistance leg, a first variable resistance leg including the temperature dependent resistor device, and a first comparator connected to both legs for determining when the temperature dependent resistor device reaches the first temperature. The second circuit includes a second reference resistance leg, a second variable resistance leg including the temperature dependent resistor device, and a second comparator connected to both legs for determining when the temperature dependent resistor device reaches a second temperature.