673 results about "Magnetic polarity" patented technology

A magnetic connector apparatus provides a plurality of magnetic connector bodies in various different forms for magnetic connection of two or more bodies together along mutually-confronting, longitudinally-elongated, linear peripheral border edges, each linear peripheral border edge having at least one particularly-configured longitudinally elongated, cylindrical magnet supported adjacent thereto for rotation of the magnet adjacent said peripheral edge of each connector body for orientation of the magnetic polarity of magnets of confronting connector bodies for mutual magnetic attraction along, mutually confronting, linear peripheral border edges of magnetic connector bodies.

The invention provides an input apparatus An input apparatus according to the present invention includes: an operating member, operable to move in at least X and −X directions from a neutral position; first and second magnets, being arranged with spacing along an X and −X direction and having opposite magnetic polarities to each other, wherein when the operating member moves in either one of the two directions, the first and second magnets moves in the same direction as the operating member; and a first magnetic sensor, provided at a position displaced from a middle point between the two magnets when the operating member is located in the neutral position, the position being equidistant from the two magnets. When the operating member moves in one of the two directions, the first magnetic sensor outputs a signal in accordance with the magnetic polarity of one of the first and second magnets.

An automotive drive system and methods for making the same are provided. The system includes a three-phase motor and an inverter module. The three-phase motor includes a first set of windings each having a first magnetic polarity; and a second set of windings each having a second magnetic polarity that is opposite the first magnetic polarity. The first set of windings being electrically isolated from the second set of windings. The inverter module includes a first set of phase legs and a second set of phase legs. Each one of the first set of phase legs is coupled to a corresponding phase of the first set of windings, and each one of the second set of phase legs is coupled to a corresponding phase of the second set of windings.

A single direct current arc chamber includes a ferromagnetic base having first and opposite second ends, a first ferromagnetic side member disposed from the first end, a second ferromagnetic side member disposed from the opposite second end, a third ferromagnetic member disposed from the ferromagnetic base intermediate the ferromagnetic side members, a first permanent magnet having a first magnetic polarity disposed on the first ferromagnetic side member and facing the third ferromagnetic member, and a second permanent magnet having the first magnetic polarity disposed on the second ferromagnetic side member and facing the third ferromagnetic member.

A magnetron sputter reactor for sputtering deposition materials such as tantalum, tantalum nitride and copper, for example, and its method of use, in which self-ionized plasma (SIP) sputtering and inductively coupled plasma (ICP) sputtering are promoted, either together or alternately, in the same or different chambers. Also, bottom coverage may be thinned or eliminated by ICP resputtering in one chamber and SIP in another. SIP is promoted by a small magnetron having poles of unequal magnetic strength and a high power applied to the target during sputtering. ICP is provided by one or more RF coils which inductively couple RF energy into a plasma. The combined SIP-ICP layers can act as a liner or barrier or seed or nucleation layer for hole. In addition, an RF coil may be sputtered to provide protective material during ICP resputtering. In another chamber an array of auxiliary magnets positioned along sidewalls of a magnetron sputter reactor on a side towards the wafer from the target. The magnetron preferably is a small, strong one having a stronger outer pole of a first magnetic polarity surrounding a weaker outer pole of a second magnetic polarity and rotates about the central axis of the chamber. The auxiliary magnets preferably have the first magnetic polarity to draw the unbalanced magnetic field component toward the wafer. The auxiliary magnets may be either permanent magnets or electromagnets.

A rotor portion of a motor includes a rotor core and a plurality of field magnets arranged in a circumferential direction at the rotor core. The rotor core includes at a flux barrier portion thereof arranged between a pair of field magnets of opposite magnetic polarities arranged next to one another a flux barrier hole. The flux barrier hole is independent of a magnet retaining hole in which the field magnet is retained. The magnet retaining hole includes a concave portion extending from a side thereof nearest to the flux barrier hole toward the corresponding flux barrier hole.

A two-piece mobile device holder having a case assembly and a mounting assembly is disclosed. The case assembly is configured to receive and secure a mobile device such as a smart phone. The mounting assembly is configured to be detachably coupled to other objects. Sets of permanent magnets are arranged in a circular pattern in the case assembly and the mounting assembly. The magnets in both the first and second set of magnets are arranged with alternating magnetic polarity. As the case assembly is placed on top of the mounting assembly, the magnets in the mounting assembly will attract magnets with opposite polarities in the case assembly. A user may detach the case assembly from the mounting assembly by rotating the case assembly such that the magnets in the case assembly are now adjacent to magnets in the mounting assembly of the same polarity.

Field emission structures comprising a plurality of electric or magnetic field sources having magnitudes, polarities, and positions corresponding to a desired spatial force function where a spatial force is created based upon the relative alignment of a field emission structure and a complementary field emission structure. The magnetic field sources may be arranged according to a code having a desired autocorrelation function. Specific exemplary embodiments are described with magnetic field sources arranged in a ring structure. The ring structure may include one or more concentric rings of component magnets. Additional magnets may be included. Magnet polarities and / or spacings may be defined by the code Mechanical constraints may be employed to limit lateral motion. Exemplary codes are described and applied to magnetic field source arrangements. Specific codes found by the inventors are described.

A disk drive includes a data storage disk that has servo information thereon which includes first servo bursts and second servo bursts. The first servo bursts are at least substantially radially aligned with each other, and have low frequency regions therebetween. Adjacent ones of the low frequency regions between the first servo bursts have magnetic polarities that are opposite to one another. The second servo bursts are at least substantially radially aligned with each other and have low frequency regions therebetween. The first and second servo bursts are in a single servo region.

A scoop retention device is provided, comprising: a first length of flexible tubing having openings at each of first and second ends, the first length of tubing being configured to receive and retain a handle of a scoop within the first opening; a first magnet secured within the opening at the second end of the first length of tubing and having an exposed surface associated with a first magnetic polarity; and a second magnet securable to the inside of a container having a surface associated with a second magnetic polarity opposite the first polarity and facing the inside of the container; whereby, the scoop is removably secured to the inside of the container by magnetic attraction between the first and second magnets.

A rotor portion of a motor includes a rotor core and a plurality of field magnets arranged in a circumferential direction at the rotor core. The rotor core includes at a flux barrier portion thereof arranged between a pair of field magnets of opposite magnetic polarities arranged next to one another a flux barrier hole. The flux barrier hole is independent of a magnet retaining hole in which the field magnet is retained. The magnet retaining hole includes a concave portion extending from a side thereof nearest to the flux barrier hole toward the corresponding flux barrier hole.

An implantable magnet arrangement is described for a hearing implant in a recipient patient. A pair of implant magnets are fixable in a common plane beneath the skin of the patient to underlying skull bone. At least one of the magnets is adapted to transform a magnetic drive signal from an external signal drive coil into a corresponding mechanical stimulation signal for delivery by bone conduction of the skull bone as an audio signal to the cochlea. Each implant magnet includes a pair of internal magnets lying in parallel planes which meet along a common junction with repelling like magnetic polarities facing towards each other, and the magnetic polarities of each implant magnet are reversed from each other.