42results about How to "Speed of can vary" patented technology

An apparatus for generating buoy light signals using a collimated light source. The system provides for communication of system conditions and ambient conditions, and can provide homeland security monitoring. The system senses motion of the buoy and compensates the direction of lighting, and optionally acoustics, being generated out over a body of water. Numerous other transportation related embodiments are described including devices for providing user comfort when flying, automotive signaling, auto parking control, sports bottles, visors, and lures.

A furnace control system for controlling a gas-fired induced-draft furnace having a variable speed inducer blower. A control apparatus, responsive to a signal corresponding to the magnitude of a pressure difference between an inlet and outlet of the combustion chamber, controls blower motor speed to maintain the pressure difference at a predetermined magnitude corresponding to a selected gas flow rate. Inducer blower motor speed is varied directly and precisely to maintain an optimal pressure drop across the combustion chamber. The control system can be used in multi-stage and modulating furnace systems and in furnace systems utilizing pressure-assist modulating gas valves.

A bola-like device for enhancing bilateral dexterity includes an elastic member having a first end and a second end, a first hand held object connected with the first end of the elastic member cord, and a second hand held object connected with the second end of the elastic member. At least one of the hand held objects has visual indicia for distinguishing the first hand held object from the second hand held object.

A paracorporeal respiratory assist lung is configured with an annular cylindrical hollow fiber membrane (fiber bundle) that is rotated at rapidly varying speeds. Fluid (for example, blood) is introduced to the center of the device and is passed radially through the fiber bundle. The bundle is rotated at rapidly changing velocities with a rotational actuator (for example, a motor or magnetic coupling). The rotation of the fiber bundle provides centrifugal kinetic energy to the fluid giving the device pumping capabilities and may create Taylor vortexes to increase mass transfer. Rotation of the fiber bundle increases the relative velocity between the fluid and the hollow fibers and increases the mass transfer. The porosity of the fiber bundle may be varied to enhance gas exchange with the blood. Alternatively, a rotating core may be used with a stationary fiber bundle.

A radial flux permanent magnet AC motor / generator employs a flat circular stator plate having a plurality of separately-formed electromagnets mounted in a ring pattern on a top surface thereof. A circular flux ring fabricated of powdered metal is mounted to the stator plate outside the ring of electromagnets. A plurality of permanent magnets are mounted in a ring pattern on the outer cylindrical surface of a steel rotor. The stator plate and rotor are axially and diametrically aligned such that the ring of permanent magnets rotates in close proximity to and inside the ring of electromagnets. The electromagnets utilize powder metal cores shaped to have rounded corners and flat sides that permit the use of heavier gauge windings and eliminate the air gaps that exist between the core and windings of prior art electromagnets.

A powertrain control system is disclosed. The powertrain control system may have a power source and a CVT coupled to an output of the power source. The powertrain control system may further have a controller in communication with the power source and the CVT. The controller may have a map with a plurality of speed modes, and, for at least one of the plurality of speed modes, the controller may be configured to vary an actual power source speed based on at least one of a CVT output speed or a ground speed.

An improved particulate metering system is provided. The system includes an air flow origin and a plurality of particulate accelerators. A single particulate source is in communication with the particulate accelerators. Each of a plurality of operated conveyances can be in operable communication with the single particulate source and one of the particulate accelerators. The system includes a confluence of the air flow and the particulate within the mixing area of each of the particulate accelerators. Each of a plurality of discharges can be associated with the particulate accelerators. The operated conveyances can operate at different rates. The system can include one or more gearboxes adapted to be inverted and controlled by a second drive system. The improved system and controls provide variable application rates of particulate across rows in a field.

A conveying roll has a cover (20) mounted on a bearing point (40) so that the conveying roll can be twisted relative to the bearing point (40) about an axis of rotation. A brake (50) is provided kinematically between the bearing point (40) and the cover (20) and is designed so the difficulty of twisting the cover relative to the bearing point about the axis of rotation varies in accordance with relative rotational speed between the cover (20) and the bearing point (40). An impeding device (60) is disposed between the bearing point (40) and the cover (20) at a point in the braking train of the brake and allows or prevents the brake to have or from having a braking effect in accordance with a direction of rotation of the cover relative to the bearing point (40).

Device for varying the delivery pressure of a jet washer comprising a positive-displacement pump operated by a single-phase electric motor powered by alternating current and having a delivery nozzle of predetermined cross-section, and electronic means for controlling and regulating the motor feed voltage to vary its speed of rotation.

A wireless power supply and voltage controller for powering and controlling a tattoo machine according to the present invention includes a battery housing having a plurality of walls that, collectively, define an interior area and a rechargeable battery positioned in the interior area of the battery housing. An input selection assembly is positioned on an exterior surface of a respective wall of the plurality of walls of the battery housing, the input selection assembly being operable to generate a speed generation signal. A controller is electrically connected to the input selection assembly that is operable to regulate a quantity of voltage flowing from the battery according to the speed generation signal.

A multi-stage piston compressor is provided with at least two piston-cylinder units, which respectively comprise a separate linear drive for moving the piston. A control device is also provided, which is designed in a manner such that the linear drives may be controlled individually with regard to speed and stroke.

A system for controlling a machine tool is provided. The system includes a user input device deflectable from a neutral position and a controller configured to receive information corresponding to an amount of deflection of the user input device from the neutral position and to output a control signal to control a movement of the machine tool in an axis of movement at a rate corresponding to the amount of deflection of the user input device from the neutral position. A machine is provided, including a work tool movable along an axis of movement and a control system including a user input device deflectable from a neutral position and a controller configured to receive information corresponding to an amount of deflection of the user input device from the neutral position and to output a control signal to control a movement of the work tool in an axis of movement at a rate corresponding to the amount of deflection of the user input device from the neutral position.

Disclosed is a pole-change type motor that provides a variable-speed (two-pole or four-pole type) operation system capable of reducing the load of the motor of the normal operation system and improving the cooling efficiency. In case of a quick operation, the motor switches over to the two-pole type according to the control of a relay section. At this time, the load of the motor is reduced by offsetting an abnormal magnetic field distribution formed due to the same polarity of adjacent main windings using compensation windings of an opposite polarity. If the quick operation is needed, the motor switches over to the two-pole type, and operates at a high speed to achieve the quick cooling. Then, if a standard operation is possible with the lapse of the predetermined time, the motor switches over to the four-pole type, and operates at a low speed to achieve an effective cooling.

A center pivot irrigation system is described that includes a controller that makes use of a particular flow rate of input water to deliver differing or variable depths of irrigation to two or more user-defined areas under a pivot irrigator. The controller operates to pulse control valves for the nozzles / sprinkler heads on and off as the sprinkler arm rotates. The valve pattern along the span of the sprinkler arm is chosen during each operating cycle such that the total water flow through all the open valves matches the flow rate of the input or supply water to the pivot irrigator. To ensure the variable application depth, the speed may be changed during valve duty cycles. A farmer may define an irrigation plan that defines the variable rate irrigation (VRI) zones and also defines exclusion or no spray zones in which no irrigation should occur.

A method of continuously casting thin strip dynamically controlling roll casting surface configuration by controlling the temperature of water flowing through the longitudinal water flow passages in a cylindrical tube thickness of no more than 80 millimeters of counter rotated casting rolls, and varying the speed of the casting rolls with attenuation of the ends of the casting rolls with a casting roll drive system responsive to electrical signals received from sensors during a casting campaign.

One embodiment of the present invention involves a roller drive control method for a fixing apparatus in which a separation claw for separating a recording paper and a cleaning unit for removing toner that has become residual on a surface of a heat roller are arranged near a surface of the heat roller that fixes toner onto the recording paper, wherein a predetermined period different from a fixing process period in which fixing of toner onto the recording paper is carried out is set as a toner removal period for removing toner that has adhered to the separation claw, and the heat roller is rotationally driven so that the rotation velocity of the heat roller is different in the fixing process period and the toner removal period.

A lithography system and a lithography method is provided for increasing reliability and efficiency of immersion lithography. By varying a scan speed between a wafer and an optical component depending on at least one process parameter during exposure of the wafer, loosening of a fluid meniscus during the relative movement of the optical component and the wafer is avoided.

A thermal printing apparatus and a method of controlling a thermal printing apparatus is provided wherein the duration of the strobe pulse utilized to transfer the ink from the carrier to the media is controlled and adjusted by a correction factor. The correction factor is calculated by the printer controller based directly on feedback regarding the actual transport time required to advance the media between encoder steps. Generally, the present invention controls a thermal printer in a manner that accounts for the transport speed between each encoder step and applies the correction factor to the strobe signal duration in a manner that maintains a uniform print density.

A digital printing system employing tandem marking engines for duplex printing utilizing a variable dwell time in the output sheet inverter of the first marking engine to provide correct positioning of the leading edge of the inverted sheet for arrival at the entrance of the second marking to avoid the seam in the photoreceptor.

A film stretcher that transports a film material in a predetermined transport direction while holding an end of the film material in a width direction of the film material to stretch the film material in the width direction includes a holding unit that includes a stretching roll having an annular groove formed on an outer periphery of the stretching roll and an endless wire fitted in the annular groove over a predetermined rotation angle range of the annular groove in a circular arc shape so that the end of the film material in the width direction of the film material is pinched. The stretching roll is inclined so as to open toward a downstream side in the transport direction of the film material. The holding unit transports the film material in the transport direction while pinching the film material using the stretching roll and the endless wire, whereby the film material is stretched in the width direction.

The method for forming tablets uses a roll press type apparatus for forming powdery material. The apparatus comprises two rolls for compressing tablets, wherein the rolls have a cylindrical shape and are arranged in the same direction, and can rotate toward their inner sides. When only one of the rolls has the plurality of cavities for forming tablets that are disposed on its outer surface, the speeds of their outer surfaces are controlled so that the speed of the roll that has the plurality of cavities on its outer surface is slower than that of the roll that has no cavity. Further, when both rolls have the plurality of cavities for forming tablets that are disposed on their outer surfaces, the speeds of their outer surfaces are controlled so that the speeds of the rolls differ.Consequently, tablets that have a high dimensional accuracy and no burrs formed around them can be produced.

A digital printing system employing tandem marking engines for duplex printing utilizing a variable dwell time in the output sheet inverter of the first marking engine to provide correct positioning of the leading edge of the inverted sheet for arrival at the entrance of the second marking to avoid the seam in the photoreceptor.

The present invention seeks to provide an improved file system that provides essence data for a media file in a way that does not require the contents of the entire file to be available before any file data can be provided. The present invention is reflected in a method of providing file data for a media file of a pre-determined format from a file system comprising a file record database and a data store, wherein the media file corresponds to a programme. The method comprises the steps of receiving details of the programme including the duration of the programme, and determining the layout of the media file in the pre-determined format from the received details of the programme, the layout including locations for essence data within the file. A file record for the media file is then created in the file record database. In response to a request for the location of essence data within the file, a location given by the determined layout of the media file is returned. Further, a stream of essence data corresponding to the contents of the programme is received and the received essence data is stored in the data store. In response to a request for a portion of essence data from the media file corresponding to a time period of the programme, essence data derived from the received essence data is returned according to the determined layout of the media file.

Disclosed is an image capture method using a virtual tracking sensor, implemented in an image capture system including wide-field image acquisition devices, each placed at a different fixed position along the course, such that the images captured at a given instant in time by two different acquisition devices represent different points of view of athletes traveling over the course. The method includes: capturing, in real time, images representative of an area in space that is substantially equivalent to the predetermined course, by each acquisition device of the plurality; selecting, for each instant in time of a plurality of successive instants in time, a given acquisition device and a portion of the image captured thereby at the instant in time; and reconstructing, on the basis of the selected image portions, a video sequence similar to that which would have been captured by an acquisition device moving along the course.

One embodiment of the present invention involves a roller drive control method for a fixing apparatus in which a separation claw for separating a recording paper and a cleaning unit for removing toner that has become residual on a surface of a heat roller are arranged near a surface of the heat roller that fixes toner onto the recording paper, wherein a predetermined period different from a fixing process period in which fixing of toner onto the recording paper is carried out is set as a toner removal period for removing toner that has adhered to the separation claw, and the heat roller is rotationally driven so that the rotation velocity of the heat roller is different in the fixing process period and the toner removal period.

Disclosed are an organic light-emitting diode-based display device and a method for controlling the device. The device may include an organic light-emitting diode-based display panel; and a data driver configured for: dividing a reference gamma voltage into a first gamma voltage corresponding to a high gray level and a second gamma voltage corresponding to a low gray level; selecting one between the first and second gamma voltage based on a gray level of video data; and supplying the selected one through a corresponding output stage among dual output stages, wherein the dual output stages respectively correspond to the first and second gamma voltages.