169results about How to "Increase magnetic attraction" patented technology

A method and apparatus for ablation of a layer of tissue is achieved by providing first and second bodies on opposed sides of the tissue. The first body includes a first ablation member and a source of magnetic force adjacent one side of the tissue. The second body includes a second ablation member and a magnetically attractive element responsive to the magnetic force adjacent the other side of the tissue. The magnetic attraction between the source and the attractive element is adapted to align the first and second bodies in opposed relationship on the opposed sides of the tissue. One of the first and second bodies may include at least one expandible member for controlling the magnetic attraction between the bodies.

A method and a device are for positioning and affixing magnets on a magnetic yoke member of an electric motor. The device includes: a nonmagnetic support for receiving the magnets, this support having a shape complementary to that of the magnetic yoke member on which the magnets are to be affixed; a magnetic element for holding the magnets in position on the nonmagnetic support, this element being arranged on the other side of the nonmagnetic support with respect to the magnets, the attraction exerted by this element on the magnets being greater than that exerted by the magnetic yoke member during the positioning of the device with respect to the yoke; a device for varying the magnetic forces present, whereby the magnetic attraction of the magnetic yoke member and/or the magnetic element on the magnets may be varied such that the magnetic force of attraction exerted by the yoke on the magnets becomes greater than that exerted by the magnetic element on them, thus provoking the transfer of the magnets to the yoke. The yoke member forms the magnetic path of a linear motor.

An electric fuel pump is disclosed which includes a pump portion, a motor portion, a housing, and a fuel passage. The pump portion pressurizes fuel. The motor portion drives the pump portion. The motor portion includes a rotor with a rotating shaft and a stator that surrounds an outer periphery of the rotor. The housing surrounds, at least, an outer periphery of the stator of the motor portion. The fuel passage, through which the fuel pressurized by the pump portion passes the motor portion, is made up of a clearance between the outer periphery of the stator of the motor portion and an inner periphery of the housing. The clearance extends, at least, in the axial direction of the rotating shaft of the rotor of the motor portion.

A coupling lock for a trailer coupling. The coupling lock comprises a receptacle (9) in which a coupling element (6) is inserted, an angle measuring device (13, 19) is connected to the receptacle (9), and the angle measuring device (13, 19) is provided for detecting rotation of the receptacle (9), about a rotational axis (18), relative to the coupling element (6). A magnetically adhering body (24) is elastically connected to the receptacle (9) and magnetically connectable to the coupling element (6) for actuating the angle measuring device (13, 19).

The invention discloses an intelligent visual tracking, welding and creeping trolley. The intelligent visual tracking, welding and creeping trolley comprises a control box, first linear motors, first movable blocks, second magnets, a trolley frame, trolley wheels, first magnets, a second movable block, a rod end bearing, a welding gun, a cylinder, a motor frame, a second motor, a support frame, a second linear motor, a baffle, a wheel frame, a first motor, a rack, a first gear, a bracket, a sliding block, a sliding rail, telescopic rods, support plates, fifth gears, fourth motors, sixth motors, first chains, rotation shafts, bearing frames, third gears, fourth gears, motor bases, third motors, second gears, wheel shafts, second chains, a linear laser generator, a CCD image sensor, a laser visual sensing device and a data processing system, wherein the wheel frame is mounted on the left side of the trolley frame; the first gear is mounted on the wheel frame; a shaft of the first gear is connected to the first motor via a coupler; and the first motor is mounted on the wheel frame. The intelligent visual tracking, welding and creeping trolley has the advantage of capability of welding workpieces with curvature change of welding seams by not laying tracks.

A high-gradient continuous magnetic separator for weakly magnetic small particles, has a separation ring composed of multiple separation chambers containing steel fibres and magnetic medium, and at least 4 pairs of C-shaped permanent magnets surrounding said separation ring. The said separation chamber has feed tube and washing water tube. Its advantages are simple structure and easy operation.

An electrical connector includes an insulating housing having a front wall, a top wall, a bottom wall and two side walls. A rear surface of the front wall extends rearward to form a tongue portion. A receiving space is formed among the front wall, the top wall, the bottom wall and the side walls, wherein the tongue portion is located in the receiving space. A plurality of probe pins is assembled in the insulating housing. A magnetic block has a shape matched with the receiving space and is assembled in the receiving space. A metal plate is placed behind the magnetic block by passing a rear end of the tongue portion therethrough. A metal shell encloses the insulating housing and further electrically resists against a rear side of the metal plate to secure the magnetic block and the metal plate in the insulating housing.

A rotary input device includes a first annular magnetic body in which a plurality of outward protrusions protruding toward an outside in a radial direction are disposed along a circumferential direction, a second annular magnetic body in which a plurality of inward protrusions formed to oppose the outward protrusions of the first magnetic body are disposed along a circumferential direction, and a rotary knob configured to relatively rotate the first magnetic body and the second magnetic body. The first magnetic body includes a magnet in which opposing surfaces facing each other are vertically disposed and which is magnetized to two poles of an upper pole and a lower pole including the opposing surfaces, a pair of yokes that interposes the opposing surfaces of the magnet vertically, and the outward protrusion formed on the pair of yokes.

The invention provides an evaporation substrate. The evaporation substrate comprises a substrate body and a magnetic layer, wherein the substrate body comprises a top surface and a bottom surface arranged oppositely, the magnetic layer is arranged on the top surface, the bottom surface is opposite to a metal mask in the evaporation process to form an evaporation layer, and the magnetic layer is opposite to a magnetic device in the evaporation process, so that drooping of the substrate body is reduced under the action of magnetic attraction force. According to the provided evaporation substrate, drooping of the evaporation substrate can be reduced, and the alignment precision of the evaporation substrate and the mask is improved.

The invention relates to a circular oil cooling electric magnetic iron remover consisting of a header tank, cooling system and a oil cooling magnetic system; wherein, the cooling system consists of a power pump, a radiator and an internal and external cyclic hydraulic circuit; an internal oil circuit is a cooling medium channel in the oil cooling magnetic system; an outer cyclic oil circuit affluxes into a current divider by an oil pipe which is communicated with an inner cavity of the oil cooling magnetic system, then into the radiator with an outlet being connected with another current divider which is connected with the oil pipe which is communicated with an inner cavity of oil cooling magnetic system; the power pump is arranged in a pipe between the radiator and the current divider. By adopting the cooling system with internal and external circulation, the circular oil cooling electric magnetic iron remover allows the whole machine to raise temperature evenly and obviously low, thereby reducing the local excessive heating phenomenon, raising magnetic potential utilization ratio, further raising magnetic attraction force, raising the working life of the circular oil cooling electric magnetic iron remover and ensuring safe and reliable operation of the invention. The circular oil cooling electric magnetic iron remover is in particular suitable for the bad working conditions with moistness, large amount of bug dusts and salt spray corrosion.

The invention discloses a magnetic-type precise seed-metering device, and relates to the field of agricultural sowing machinery. The precise seed-metering device comprises a seed-metering element, a seed-metering element sleeve pipe, a mounting bracket, an adjustable DC stabilized power supply, and a power supply polarity switch. Output current of the DC stabilized power supply is adjusted, and current direction of a solenoid coil is changed. Magnetic induction intensity of a seed-suction end face of a magnetic head is changed, and polar N, S pole directions of an electromagnet magnetic pole end are changed. With the changes of the magnetic induction intensity of the seed-suction end face of the magnetic head, seed metering requirements of seeds of different specifications can be satisfied. With the changes of the polar N, S pole directions of the electromagnet magnetic pole end, seed-metering device seed suction and seed discharging actions can be achieved. Compared with a permanent magnet seed-metering element, with the device provided by the invention, a special forced seed discharging mechanism is not needed, such that seed damage caused by mechanical seed discharging is avoided; the magnetic head suction power is adjustable, such that sowing requirements of coated seeds with different specifications can be satisfied by a seed-metering element with a single specification.

The invention relates to a button. The button comprises a baseplate, a button cap, cover plate and a supporting device. The cover plate is arranged above the button cap and is made of magnetic materials. The supporting device is arranged between the baseplate and the button cap and is respectively connected with the button cap and the baseplate in a rotating mode. The button cap has a first magnetic area, and the supporting device has a second magnetic area, wherein the position of the first magnetic area is corresponding to the position of the second magnetic area. When the button cap is not pressed, the magnetic attractive force between the first magnetic area and the second magnetic area enables the button cap to be kept in an unpressed position. When the button cap is pressed by external force, the button cap is moved from the unpressed position to a pressed position along with the supporting device. When the external force is released, the magnetic attractive force enables the first magnetic area to be close to the second magnetic area, so that the button cap can be moved back to the unpressed position from the pressed position along with the supporting device. The button utilizes the magnetic attractive force to enable the button cap to be shifted between the unpressed position and the pressed position along with the supporting device without installing elastic pieces, so the service life of the button can be effectively prolonged.

A high-pressure armature set of a fluid solenoid valve features that a plunger has an extended portion or a balance seat that is received by a degaussing rod having an excitation element or by the armature tube, so as to balance pressure of a primary inlet at two ends of the plunger. The plunger has an axial through hole allowing fluid coming from an outlet end to reach a front end of the plunger so as to balance pressure of a secondary outlet at the two ends of the plunger. Thereby, the armature set is adaptive to a solenoid valve with larger fluid pressure without increasing the solenoid valve body in size. The extended portion of plunger or the balance seat enters the degaussing rod or the armature tube, so the attraction the degaussing rod acts on the plunger is increased and power consumption caused by coil excitation is reduced.

The invention relates to a controllable permanent magnet magnetic suspension damping spring with an air damping chamber. The damping spring comprises a pedestal, a support shaft, an casing, a rotor, a displacement sensor, a stator, a stator excitation winding and an electromagnetic controller, wherein, the pedestal has a cylindrical structure; a chamber is formed in the centre of the pedestal and used as the air damping chamber; one end of the supporting shaft is inserted in the air damping chamber; the casing is fixed to the pedestal; the rotor is arranged on the support shaft; a guide rod is arranged on the rotor; a pore path is formed on the pedestal; the displacement sensor is arranged at the port of the pore path of the pedestal and corresponds to the guide rod; the stator is arranged outside the rotor; a gap is kept between the rotor and the stator and filled with ferromagnetic material powder; the stator excitation winding is arranged on the stator; and the electromagnetic controller is electrically connected with the displacement sensor and the stator excitation winding respectively to form a closed loop control system. In the controllable permanent magnet magnetic suspension damping spring, magnetic attraction is used as elasticity, and the spring body and the damping chamber are integrated, so that the vibration damping effect is obviously improved. At the same time, the magnetic attraction, namely magnetic suspension force adopts the combination of permanent magnetic attraction and electromagnetic force, so that the magnetic suspension force can be effectively controlled according the difference of the loading, thereby improving the elasticity property of the spring.

A cochlear implant headpiece in accordance with one of the present inventions includes a housing including a top wall, a bottom wall and a receptacle that extends from the top wall to the bottom wall, that defines an open top end, an open bottom end and a central axis, and that includes a receptacle lock member, a magnet apparatus defining a bottom and including a magnet and a magnet apparatus lock member, and a headpiece antenna on or within the housing. The respective configurations of the receptacle and the magnet apparatus are such that the magnet apparatus can be inserted into the receptacle and, when fully inserted into the receptacle, the magnet apparatus bottom is located within or downwardly beyond the open bottom end of the receptacle. The respective configurations of the receptacle lock member and the magnet apparatus lock member are such that the fully inserted magnet apparatus will be fixed in one of a plurality of rotational orientations around the central axis. The present inventions also include cochlear stimulation systems with a sound processor and/or a cochlear implant in combination with such a headpiece.

A storage compartment comprises a container defining an access aperture closable by a closure that can be sealed to the container around the aperture and that can be opened by relative movement between the container and the closure in a lateral direction with respect to the aperture, the container having a first sealing loop around the aperture and the closure having a second sealing loop co-operable by alignment with the first sealing loop to maintain a seal when the closure closes the aperture. The sealing loops are moved into and out of mutual alignment by said relative movement between the container and the closure and at least one of the sealing loops includes magnetic means for attracting the other of the sealing loops to maintain a seal when the sealing loops are mutually aligned.