244015 results about "Electric machinery" patented technology

A surgical instrument includes a drive member movable by a drive motor between a home position and an end of stroke. A mechanical stop is disposed at or near the end of stroke and is structured to increase resistance to movement of the drive member from a first position to a second position. A control system detects a current spike associated with the increased resistance and interrupts power to the drive motor.

An improved hand-held fastener driving tool is provided with an adjustable torque limiting control. The tool is portable, and is electrically powered using either a battery pack or a power cord as a power source. The tool drives collated fasteners (e.g., screws) into solid objects. The motor current is measured to determine the amount of torque being applied to a screw by the motor and mechanical drive components. As the screw bottoms out, the motor torque increases to a point where it exceeds the user-adjusted torque limiting control. The motor is automatically turned off at that point, thereby preventing the screw from being stripped.

A surgical instrument includes a drive shaft, a motor for rotating the drive shaft, and a motor speed control. The motor speed control includes a first switch and a second switch which are in communication with the motor. The first switch is disposed over and in registration with the second switch. The first switch has an activated state such that the first switch sends a first signal to the motor. The motor rotates the drive shaft in response to the first signal. The second switch sends a second signal to the motor that varies the speed that the motor rotates the drive shaft in response to a force applied to the second switch by the first switch.

A biopsy device and method are provided for obtaining a tissue sample, such as a breast tissue biopsy sample. The biopsy device includes a disposable probe assembly with an outer cannula having a distal piercing tip, a cutter lumen, and a cutter tube that rotates and translates past a side aperture in the outer cannula to sever a tissue sample. The biopsy device also includes a reusable hand piece with an integral motor and power source to make a convenient, untethered control for use with ultrasonic imaging. The reusable hand piece incorporates a probe oscillation mode to assist when inserting the distal piercing tip into tissue. External vacuum holes along the outer cannula (probe) that communicate with a vacuum and cutter lumen withdraw bodily fluids while a hemostatic disk-shaped ring pad around the probe applies compression to an external hole in the skin and absorbs fluids.

A hybrid powertrain has a transmission including a motor and a sensor for sensing rotation of the transmission output member. Motor speed signals are available from the motor controller. Speed signals representative of output speed are calculated from both the speed sensor and the motor speed in conjunction with known speed relationships between the motor and the output. A variety of in-range and dropped signal diagnostics is performed for the sensors and are used in the development of a set of software switches for selecting which of the speed sources is used as the output speed.

Preferred operating points for a vehicle powertrain including an engine and a transmission are determined in accordance with a comprehensive operational mapping of input and output conditions and corresponding aggregate system losses corresponding to engine and transmission losses. In a hybrid transmission application, additional losses from motors and batteries are aggregated into the system losses and battery constraints are considered in determining preferred operating points. Preferred operating points are provided in one or more sets of minimized data for on-vehicle implementation.

A circuit tracer for use with circuit breakers equipped with sensors capable of sensing at least a change in the power consumption of the circuit and transmitting, preferably wirelessly, such information. The information is received directly or indirectly by a circuit tracer having a display, the display showing all the circuit breakers equipped with the sensors. Upon changing the load of an electricity outlet, such as a wall outlet, a light source, HVAC, pump, electrical machinery, etc., the sensor equipped circuit breaker provides an indication of such power or current consumption change to the circuit tracer. This allows the user of the circuit tracer to associate on the circuit tracer the circuit breaker with the specific electricity outlet. The association information may be saved on a central server or database for future use.

A cassette having a molded flow channel contained on an elastomeric sheet that is bonded or mechanically attached to a rigid substrate. The flow channel projects outwardly from the exterior of the cassette so that a peristaltic pump having pump head rollers mounted radially from the axis of rotation of the pump motor compress the elastomeric flow channels against the rigid substrate during operation.

A surgical robot includes a console and a manipulator assembly. The manipulator assembly includes at least one arm having a plurality of links and a motor provided between links adjacent to each other among the plurality of links, and a control unit configured to determine whether a mode is changed between a tele-operation mode and a manual mode. The control unit sets output data of the motor provided before the mode is changed as input data of the motor provided after the mode is changed, if it is determined that the mode is changed between the tele-operation mode and the manual mode, thereby preventing the vibration and the rapid change of the posture from occurring at the arm of the surgical robot during the change of the mode between the manual mode and the tele-operation mode, thereby increasing stability of the surgical robot.

A remotely controlled insertion system for a medical device is described. The system comprises a robotic device and a remote control mechanism. The robotic device has a handle controller to receive and hold the control handle or proximal end of a medical device. The medical device is capable of moving in up to six ranges of motion. In ione embodiment a first motor is connected through a drive screw to a handle controller to move the medical device forward and backward. A second motor is connected to drive wheels effective to rotate the medical device clockwise and counter-clockwise. A third motor drives a series of gears that are connected to one or more control members on the medical device, this being effective to deflect a tip of the medical device so that movement of the third motor causes such deflection. A control unit is connected to all three motors.

A door actuator system includes a linear motor, electromagnetically coupled between a moveable door and an adjacent non-moving structure, and a controller, interconnected to the linear motor, configured to power the linear motor to cause motion of the door, and to detect motion of the door from induced current produced in the linear motor.

The invention relates to a food processing machine with an electric sucking pump and a method for vacuumizing to produce foodstuff liquid. The food processing machine comprises a crushing cutter device, a machine head or a machine base, a motor, a barrel and a control circuit board, wherein the barrel is provided with a sealing device, has or does not have a heating device. An electric sucking pump is arranged on the machine head, the machine base, the sealing device, the barrel or a barrel handle of the food processing machine, the sucking port of the electric sucking pump is positioned in the barrel and above the foodstuff liquid level, the exhaust port of the electric sucking pump is communicated with the outer part of the barrel; and the electric power source of the electric sucking pump is an independent motor, an electromagnetic vibration device, a piezoelectric ceramic vibration device or the crushing cutter device of the food processing machine. A sealing mode is adopted to seal the barrel of the food processing machine, the electric sucking pump is used to pump air out of the barrel, then crushing and heating are carried out to crush and heat the foodstuff in the barrel of the food processing machine under the vacuum condition, the oxidation of the foodstuff liquid is greatly reduced and avoided for the crushing and heating processes, so the nutritive loss is reduced, and the good taste and appearance color are kept.

An aircraft having a vertical take-off and landing (VTOL) propulsion system. The aircraft includes a fuselage, the VTOL propulsion system, at least one forward thruster, a power source used for both the VTOL propulsion system and forward thruster, fore and aft wings and a plurality of spars attached to and spanning the space between the two wings. The VTOL propulsion system includes a plurality of VTOL cells (including a motor, motor controller, and propeller) attached in a spaced relation along each spar. The VTOL cells are used exclusively for vertical flight or hovering and are powered down as the aircraft develops forward flight velocity and corresponding wing lift. During forward flight the VTOL propellers are articulated to allow the aircraft to take on a low drag configuration. The present invention is suitable for use in manned or un-manned aircraft of any scale.

An apparatus and method for a centrifugal pump for pumping sensitive biological fluids which includes (i) an integral impeller and rotor which is electromagnetically supported and rotated, (ii) a pump housing and arcuate passages for fluid flow and containment, (iii) a brushless driving motor embedded and integral with the pump housing, (iv) a power supply, and (v) specific electronic sensing and control algorithms-all fitly joined together to provide efficient, durable and low maintenance pump operation. A specially designed impeller and pump housing provide the mechanism for transport and delivery of fluid through the pump to a pump output port with reduced fluid turbulence.

Launch and recovery of an aerial vehicle by a forwardly moving surface vehicle relies on a winch module having a winch to selectively reel out and reel in a towline and a sensor capable of sensing tension in the towline. A lifting body assembly having a pair of lifting bodies and a snagging wire is connected to the towline. The lifting bodies lift and laterally extend the snagging wire between the lifting bodies. An aerial vehicle flying through the air engages the snagging wire by a hook. A first signal representative of tension of the towline causes the winch to reel in the towline and to bring the aerial vehicle to the surface vehicle, and a second sensor associated with the hook generates a second signal representative of tension in the hook and causes the aerial vehicle to cut its motor.

A welding power source including an embedded web server provides access to an operator at a remote web browser. From the remote web browser, the user is provided access to weld functions, and can selectively choose between weld functions that can be displayed and controlled from the remote web browser. The weld functions that can be accessed include control functions, which allow an operator to activate welding functions such as a jog or purge function; a command function, which allows an operator to provide a command level for a voltage, wire feed speed, or other parameter; and a display function, which provides access for an operator to display welding command and actual feedback values. The operator can also selectively view diagnostic data, including weld state data, error data, and operational voltage and current levels within the power source, such as motor voltage and input voltage levels. After an operator selects parameters to be displayed or controlled from the browser, the selected functions can be stored and recalled as a web page.

Concentric tilted double-helix magnets, which embody a simplified design and construction method for production of magnets with very pure field content, are disclosed. The disclosed embodiment of the concentric tilted double-helix dipole magnet has the field quality required for use in accelerator beam steering applications, i.e., higher-order multipoles are reduced to a negligibly small level. Magnets with higher multipole fields can be obtained by using a simple modification of the coil winding procedure. The double-helix coil design is well-suited for winding with superconducting cable or cable-in-conduit conductors and thus is useful for applications that require fields in excess of 2 T. The coil configuration has significant advantages over conventional racetrack coils for accelerators, electrical machinery, and magneto-hydrodynamic thrusting devices.

A learning environment and method which is a first milestone to an expert machine that implements the master-slave robotic concept. The present invention is of a learning environment and method for teaching the master expert machine by a skilled worker that transfers his professional knowledge to the master expert machine in the form of elementary motions and subdivided tasks. The present invention further provides a stand alone learning environment, where a human wearing one or two innovative gloves equipped with 3D feeling sensors transfers a task performing knowledge to a robot in a different learning process than the Master-Slave learning concept. The 3D force\torque, displacement, velocity\acceleration and joint forces are recorded during the knowledge transfer in the learning environment by a computerized processing unit that prepares the acquired data for mathematical transformations for transmitting commands to the motors of a robot. The objective of the new robotic learning method is a learning process that will pave the way to a robot with a “human-like” tactile sensitivity, to be applied to material handling, or man / machine interaction.

The invention discloses a high-tension transmission line inspection robot based on a multi-rotor aircraft, which comprises a four-rotor aircraft and an inspection system, wherein a double-power module supplies power to the four-rotor aircraft and the inspection system; the four-rotor aircraft comprises a robot body, four rotors, four rotor motors and four rotor motor drivers, the rotors, the rotor motors and the rotor motor drivers are matched, the four rotors are fixedly arranged on respective rotor motors, and the four drivers are respectively connected with respective rotor motors 3; and the inspection system performs shooting and data transmission on high-tension transmission lines. The robot disclosed by the invention performs air flight inspection based on four rotors, and is high in air flight stability and good in inspection speed. Through wireless camera shooting control, a visible light camera can be moved to a position near a suspected fault point so as to realize the emphasized detection of suspected fault points of the high-tension transmission lines.

The invention relates to a pumping device for introduction of a fluid into a base layer, in particular into a base layer containing gas, for the production of gas-permeable structures in the base layer. The pumping device is arranged on a transportation vehicle having a separate drive unit, including a pump motor and a pump, whereby a speed / torque converter is arranged between pump and pump motor. A hydrodynamic device, in particular a hydrodynamic converter, is used in place of a transmission for speed / torque conversion.

A motorized surgical instrument is disclosed. The surgical instrument includes a control circuit configured to control the movement of an end effector. If the end effector moves outside a predetermined acceptable range, the control circuit may create a dynamic brake to resist the undesired movement of the end effector. The control circuit may apply pulse width modulated (PWM) current to resist the undesired movement of the end effector outside a predetermined acceptable range.

An automatic drug dispenser includes: a drug cassette which ejectably accommodates drugs; a base unit which detachably supports the drug cassette and drives a motor to eject drugs; a drug feeder storage which is designed to store a large number of base units; a reading device which is provided in each of the base units and reads identification information assigned to the drug cassette; and a checking means which compares a result of reading with pre-stored check data, wherein a microprocessor is mounted in each of the base units, and the checking means, the check data and history information related to the cassette are built in each microprocessor in a distributed manner.

A disk drive is disclosed comprising a spindle motor for rotating a disk and a voice coil motor (VCM) for actuating a head over the disk. The spindle motor comprises a plurality of windings, and the VCM comprises a voice coil. If the current flowing from a supply voltage exceeds a threshold, the windings are disconnected from the supply voltage, the voice coil is disconnected from the supply voltage, and the first and second ends of the voice coil are connected to ground.

An engine power extraction control system controls the main propulsion engines and the electrical machines that are coupled thereto to supply an appropriate amount of aircraft thrust and electrical energy to the aircraft. The engines and electrical machines are also controlled so that the propulsion thrust that is generated is split between the various turbines in the main propulsion engines to maintain an adequate surge margin and to minimize residual thrust generation.

The present application discloses an axial operator that is configured for use with a door assembly. The axial operator comprises a rotatable operator output member that rotates about an operator axis, the operator output member being constructed and arranged to be operatively connected within the door assembly such that the operator output axis extends generally vertically. An electric motor has a rotatable motor output member that rotates about the operator axis. The motor is constructed and arranged to selectively rotate the motor output member about the operator axis. A reduction transmission is connected between the motor output member and the operator output member. The reduction transmission is constructed and arranged such that the transmission rotates the operator output member at a lower rotational speed than a rotational speed at which the motor rotates the motor output member and applies a higher torque to the operator output member than a torque which the motor applies to the motor output member. The reduction transmission comprises (a) an orbit gear, (b) a planet gear carrier, and (c) a planet gear. The motor is adapted to be communicated to a controller so as to receive a door moving signal therefrom and being further adapted to selectively rotate the motor output member in response to receiving the door moving signal to thereby rotate the operator output member so as to move the door panel with respect to the doorway as aforesaid.

A ramp assembly for use in a vehicle provides access thereto by users having reduced mobility. The ramp assembly comprises a ramp platform displaceable relative to a mounting structure between a retracted position and a deployed position. A drive mechanism is disposed within the mounting structure and operable to displace the ramp platform between the retracted and the deployed positions. The drive mechanism includes at least a drive shaft and a bidirectional motor unit selectively actuable to rotate the drive shaft in a first direction for deploying the ramp platform and a second opposed direction for retracting the ramp platform. The drive mechanism includes a pair of flexible transmission elements each interconnecting the drive shaft with a lateral edge of the ramp platform, for displacement thereof relative to the mounting structure.

A wire feeder including a motor driving a set of feed rolls to force a welding wire from a spool through a welding torch to a welding operation. The wire feeder has an input lead to be connected to the output lead of one of a plurality of remotely located power sources, each having a signal receiver for receiving transmitted signal with a code unique to one of the power sources. The receiver having an output for controlling a parameter or condition of the one power source in accordance with a received signal with the unique code. A transmitter on each of said plurality of power sources for transmitting on its output lead a coded signal specific to the power source. A signal receiver on said wire feeder to receive a unique code from the specific power source actually connected to the wire feeder and a circuit on the wire feeder for transmitting command signals from the wire feeder, which command signals each have the unique code specific to the power source connected to said wire feeder.

A small-scale or micro media-mill and a method of milling materials or products, especially pharmaceutical products, use a dispersion containing attrition milling media and the product to be milled. The milling media can be polymeric, formed of polystyrene or cross-linked polystyrene, having a nominal diameter of no greater than 500 microns. Other sizes include 200 microns and 50 microns and a mixture of these sizes. The mill has a relatively small vessel having an opening, an agitator, a coupling and a motor. The agitator can have a rotor and a shaft extending therefrom. The rotor can be cylindrical or have other configurations, and can have tapered end surfaces. The coupling can close the vessel opening, or attaching the coupling to the motor can close the opening. The coupling has an opening through which the rotor shaft extends into the motor. A sealing mechanism, such as a mechanical or lip seals the shaft while permitting the rotor shaft to rotate. The vessel can contain one or more ports for circulating the dispersion, where milling can be made in batches or recirculated through the milling chamber. The media can be retained in the vessel or recirculated along with the process fluid. The rotor is dimensioned so that its outer periphery is spaced with a small gap from an inner surface of the vessel. The vessel also can have a way of cooling the dispersion.