133results about How to "Prevent attraction" patented technology

The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and useful electrical, mechanical, and chemical properties including applications in antennas, electromagnetic and electro-optic devices, and high-toughness materials. Other compositions of matter and articles of manufacture are disclosed, including polymer-coated and polymer wrapped single-wall nanotubes (SWNTs), small ropes of polymer-coated and polymer-wrapped SWNTs and materials comprising same. This composition provides one embodiment of the SWNT conducting-rod composite mentioned above, and also enables creation of high-concentration suspensions of SWNTs and compatibilization of SWNTs with polymeric matrices in composite materials. This solubilization and compatibilization, in turn, enables chemical manipulation of SWNT and production of composite fibers, films, and solids comprising SWNTs.

An electric pump includes a rotor including a magnet portion formed of a ring shaped structure and having a polar anisotropic ring magnet, and an impeller portion pressure-supplying a fluid and formed integrally with the magnet portion, and a stator rotating the rotor.

A woven fabric (1) made from threads (2) that are formed from plastic at least one their outside surface. At least one surface side (7) of the fabric (1) is partially metallically coated.

A magnetic attraction preventive system includes an approach detection unit which generates an approach detection magnetic field and detects the approach of a magnetic material to a magnetic resonance imaging apparatus on the basis of a variation in the strength of the approach detection magnetic field, and a preventive unit which prevents magnetic attraction of the magnetic material to the magnetic resonance imaging apparatus when the approach detection unit detects the approach of the magnetic material to the magnetic resonance imaging apparatus.

A sensor device (50) for sensing magnetic particles (15), the sensor device (50) comprising a substrate (25) and a sensing unit (11, 20) provided on and/or in and/or near the substrate (25) and being adapted for sensing a detection signal indicative of the presence of the magnetic particles (15), and a magnetic field control unit (30 to 34) provided off the substrate (25) and being adapted for generating a time-dependent magnetic field for interaction with the magnetic particles (15).

The invention belongs to metal plates bent linearly, and particularly discloses a plate rolling machine with the welding function. The plate rolling machine comprises a rack, an upper roll, a lower roll, an edge roll and a power source used for driving the upper roll to rotate. The upper roll, the lower roll and the edge roll are all rotationally connected to the rack. A lifting frame, a clamping unit, a hydraulic cylinder, a weld gun and a sliding rail are further included. The lifting frame is arranged on the sliding rail in a sliding manner. The weld gun is hinged to the lifting frame. The hydraulic cylinder is fixed to the lifting frame, and an output shaft of the hydraulic cylinder is hinged to the weld gun. The clamping unit comprises an elastic piece, an electromagnet and a clamping plate attracted with the electromagnet. The electromagnet and the clamping plate are in an arc shape. The electromagnet is fixed to the rack. One end of the elastic piece is connected to the rack, and the other end of the elastic piece is connected to the clamping plate. Compared with a traditional plate rolling machine, according to the scheme, a rolled plate does not need to be taken down, and can be fixed after a power source of the electromagnet is connected, operation is easy, and work efficiency is high.

An automatic dumping type medical dustbin is composed of a frame, handrails, crank fixing plates, a dumping hand crank, a crank disc, a connecting rod, a compressing and crushing mechanism, a dustbin,a garbage pushing mechanism, a dustbin fixing plate, wheels, a crank boss and a rotating connecting pipe. The dustbin and the dustbin fixing plate are connected together through the rotating connecting pipe, and the dustbin can freely rotate around the rotating connecting pipe. The crank disc is fixed to the two crank fixing plates. The dumping hand crank is fixedly mounted on the front portionsof the crank fixing plates. The crank boss is fixedly mounted on the rear portions of the crank fixing plates. One end of the connecting rod and the crank boss are connected together, and the other end of the connecting rod is connected with a connecting column on the side face of the dustbin. The compressing and crushing mechanism is mounted above the dustbin. The garbage pushing mechanism is mounted in the dustbin. The automatic dumping type medical dustbin has the beneficial effects that the whole device structure is simple, and operation is convenient; direct contact with medical garbage is avoided; the number of times of garbage dumping is reduced; and the work efficiency is improved.

The present invention relates to an improved pulse simulator and to an improved method for simulating pulse. It comprises a palpation conveyor connected with a flexible pump means. The flexible pump is operatively coupled to a solenoid arranged about a fixed core. The solenoid is magnetized and demagnetized by an electrical energy source causing back and forth motion of the solenoid, with consequential expansion and contraction of the flexible pump means, thereby releasing fluid in back and forth direction to the palpation conveyor for generating pulse sensation.

To provide an electrical tool in which a permanent magnet motor can be smoothly mounted without requiring excess working power and man-hour. In the portable electrical circular saw (electrical tool) in which a commutator motor (permanent magnet motor) is mounted in a motor case (housing) which is integrally formed in a tube shape, the commutator motor includes a stator fixed to an inner circumferential surface of the motor case and a rotor which is rotatably disposed in the stator, and a plate having a plurality of protrusions is disposed on at least one of the both axial ends of a rotor core of the rotor, an outer diameter of at least two protrusions of the plate is larger than an outer diameter of the rotor core and smaller than an inner diameter of the stator.

A heat exchanger of small size and thin type is provided. It includes a machine body (1), an indoor suction port (3) for sucking indoor air (2), an indoor diffuser (4), an outdoor suction port (7) for sucking in outdoor air (6), an outdoor diffuser (8), a motor (11) provided inside the machine body (1), an exhaust blade (9) and an intake blade (10) disposed at the motor (11), an exhaust fan casing (12) provided around the exhaust blade (9), an intake fan casing (13) provided around the intake blade (10), and a plurality of heat exchange elements (16) disposed around the exhaust fan casing (12) and intake fan casing (13).

A transport device may include a transport mechanism including a supporting member configured to support a placed medium and transport the medium. The transport device may also include a first charging device configured to alternately charge the supporting member with one polarity and an opposite polarity. The transport device may further include a transfer mechanism configured to transfer the medium to the supporting member. The transport device may yet further include a second charging device configured to alternately charge the medium with one polarity and an opposite polarity for transferring the medium with the transfer mechanism before the transfer mechanism places the medium on the supporting member. The transport device may yet further include a control unit configured to control at least one of the transport mechanism, the transfer mechanism, the first charging device, and the second charging device.

An environment-friendly net for protection against insects adopts PVC fabric, wherein the PVC fabric contains a spice disagreeable to mosquito, fly or ant, and comprises PVC, a plasticizing agent, a heat stabilizer, an antioxidant, an anti-UV agent, a lubricant and the spice, wherein 100 portions of PVC are taken as a base number, the compositions in portion by mass of the PVC fabric are: 100 portions of PVC, 20 to 60 portions of plasticizing agent, 1 to 8 portions of heat stabilizer, 1 to 4 portions of ageing resistant, 0.1 to 2 portions of lubricant and 0.1 to 2 portions of spice. The invention provides the environment-friendly net for protection against the insects which can prevent environment pollution and has excellent environmental-protection performances.

The invention provides a pre-embedded and prefabricated magnetic attraction end guiding type building crack repairing device and a method based on magnetic force. The device comprises a steel bar pre-embedded in a reinforced concrete beam body; the steel bar is wound with a tinned copper wire; the tinned copper wire penetrates through a reserved wire interface pre-formed in the reinforced concrete beam body; the tinned copper wire is connected with an electromagnetic induction device used for providing current; a guide hole is formed in the position, where a crack easily occurs, of the reinforced concrete beam body; and the guide hole is connected with a high-pressure jet grouting machine through a grouting pipe, and then magnetic mortar is injected into the crack. The magnetic mortar is injected into a required position under the guide adsorption of different magnetic attraction ends, so that the sufficient grouting effect is achieved, and the crack repairing and filling rate is increased. According to the pre-embedded and prefabricated magnetic attraction end guiding type building crack repairing device and the method based on the magnetic force, the needed materials are simple, the assembly cost is low, and the device has prefabrication performance, is fast to operate, and is high in crack repair guiding effect and long in duration time.

An improved seal-insert and seal for a toner hopper as used in toner cartridge assemblies for printers, copiers and facsimile machines. In one embodiment, the seal has two slotted, rectangular outer pieces joined together with slot alignment and joined by an inner layer of two-sided tape. The two-sided tape is made with a long u-shape which does not interfere with the slots in the outer pieces. The open end of the u-shaped tape configuration allows a seal to be inserted or removed from between the outer pieces to close or open the slots. The seal-insert is applied over the passage from the toner hopper. The outer pieces are made from an antistatic and/or a conductive material, such as an aluminum laminate or plastic imprefnated with conductive particles. Alternately, the outer pieces may be made from plastic covered with an antistatic and/or conductive spray or coating. In another embodiment, a tear-seal is made from antistatic and/or conductive material, and is provided with a tear-guide secured to and under the tear-sheet. The tear-guide has a width smaller than the tear-sheet and slightly smaller than the slot of the seal-insert. When the tear-guide is pulled by the enduser, the tear-guide will rip the tear-sheet in a straight line, providing an opening with an even width that will not block toner flow.

A medical guidance system and a control method of a medical device are provided, which may increase the drive force of a medical device and improve controllability thereof. The medical guidance system has a medical device that includes a biologic information acquisition unit that acquires biologic information of the inside of a body cavity and a magnet that generates drive force in response to a magnetic field exerted from the outside of a body, a magnetic field generation unit 101 that generates the magnetic field to be exerted on the magnet from the outside of a body, and a displacement detection unit 105 that detects displacement being an angle formed between the magnetization direction of the magnet and the field direction of the magnetic field generated by the magnetic field generation unit 101 at the position of the medical device; wherein the magnetic field generation unit 101 is controlled based on the displacement.