Abstract: A motor in an example of the invention forms a stator core stack by laminating a plurality of straight cores having a core back, a tooth, and a linking part for linking the core backs. In the stator core stack, the linking portion is folded and deformed the linking portion so as to join an end surfaces of the straight core, and a core back outer peripheral portion is formed at the back side of the core back, and the diameter of the core back outer peripheral portion is formed same as or shorter than the diameter of the inner peripheral surface of the housing, and is disposed in the housing. A bar-like member is press-fitted in the axial direction between both the end surfaces of the straight core. In other example of motor, an engaging portion extending in the axial direction and projecting in the radial inward direction is formed in the inner peripheral surface of the housing, and the end surfaces of the straight core are engaged or fitted with the engaging portion.

Abstract: A spiral flow is generated in an outermost surface of a filter layer 103a formed of floating filter media 103 housed inside a filtration tube 102. This spiral flow can carry out filtration of the wastewater while scraping off floating filter media 103 forming the outermost surface of the filter layer 103a. This spiral flow can also be generated by discharging the wastewater inside the filtration tube in a direction following an inner wall thereof. Moreover, the tornado flow can also be generated by sucking this spiral flow downward to obtain an even more effective prevention of the clogging of the filter layer 103a.

Abstract: A recording disk drive motor is disclosed which is employed in a recording disk drive that retains a removable recording disk that has a diameter of 30 mm or less, as well as a method of manufacturing a stator core used in the same. The core back of the stator core in the motor has an arc shaped inner circumferential surface therein that is offset from the center thereof. The stator core is produced from a laminated body having a stator core, a chuck frame that is integral with and surrounds the stator core, and connector arms that connect the stator core and the chuck frame and integral therewith. After the windings are wound around the stator teeth, the stator core is cut from each connecting arm and the stator core is removed from the chuck frame.

Abstract: An actuator, a vehicle mounted radar device, and an automobile drive control system that employ a non-contact type potentiometer to detect a rotation angle of a rotary shaft. The non-contact type potentiometer includes a pair of planar magnets disposed opposite and parallel with respect to each other on a U-shaped magnetic yoke, the polarities of the magnets being arranged such that approximately parallel magnetic fields are formed around a magnetic detection element that is retained on a support shaft connected to a rotary shaft on an actuator, and can freely rotate relative to the stationary member. By rotating the rotary shaft on the actuator, a change in the output from the magnetic detection element occurs, thus allowing a rotation angle of the rotary shaft to be detected.

Abstract: An actuator, a vehicle mounted radar device, and an automobile drive control system that employ a non-contact type potentiometer to detect a rotation angle of a rotary shaft. The non-contact type potentiometer includes a pair of planar magnets disposed opposite and parallel with respect to each other on a U-shaped magnetic yoke, the polarities of the magnets being arranged such that approximately parallel magnetic fields are formed around a magnetic detection element that is retained on a support shaft connected to a rotary shaft on an actuator, and can freely rotate relative to the stationary member. By rotating the rotary shaft on the actuator, a change in the output from the magnetic detection element occurs, thus allowing a rotation angle of the rotary shaft to be detected.

Abstract: A filter device of a hollow fiber membrane type is prevented from being clogged. A filter cylinder is two-divided with a filter chamber on the upper side and a recovery chamber on the lower side by a funnel member. A hollow fiber membrane module is arranged in a state spread in a broom form within the filter chamber. Raw fluid is radially ejected through ejection ports of an injection pipe. Consequently, the hollow fiber membrane module positively spreads into a broom form while vibrating. Due to this, raw fluid sufficiently reaches an inside of the hollow fiber membrane module, thereby achieving efficient filtration and stripping away of deposit. The stripped deposit enters the recovery chamber. The deposit entered the recovery chamber does not return to the filter chamber. Thus, there is no re-deposition of the once-removed deposit onto the hollow fiber membrane module.

Abstract: In a motor and bearing structure for a motor, a shaft is rotatably mounted on a fixed support, and a radially-extending rotor is connected to the shaft and rotatable therewith. A ball bearing assembly having an inner race, an outer race, and at least one ball bearing seated between the inner and outer races, is mounted between the shaft and the support for rotating the shaft and rotor relative to the support. A stator is radially spaced relative to the rotor, and fixedly mounted relative to the rotatable shaft and rotor. An approximately arc-shaped preload magnet is fixedly mounted on the support, and is axially spaced adjacent to the rotor to magnetically attract the rotor in the axial direction of the shaft and, in turn, apply a preload to the ball bearing assembly to prevent vibrations, wobbling or other rotational instability of the rotor. A ring-like, oil-impregnated bearing also rotatably supports the rotor and the shaft to further enhance the rotational stability of the rotor.

Abstract: An extrusion molding apparatus includes a die head with first, second, third and fourth annular nozzles. An adhesive extruder is connected to the first and third nozzles, a barrier extruder is connected to the second nozzle and a reclaimed material extruder is connected to the fourth nozzle. Inner and outer main material flow passages are connected to a main material extruder, as well. The annular nozzles and the main material flow passages are connected to an extrusion nozzle for forming a parison. The barrier material extruder has a cylinder which is connected to the second nozzle. A screw lies within the cylinder. The second nozzle has a ridge opposite an end of the screw, for dividing the extruded barrier flow material, mitigating stagnation of the barrier material as it passes through the second nozzle. A method of forming a parison is described, as well.

Abstract: A wash and dry apparatus by the use of organic solvent which comprises a working bath for holding the organic solvent in the lower space thereof, heating means disposed within the space of the solvent, and cooling means provided in vertically coiling manner in the upper space above the space for the solvent. The upper space is divided into a main chamber surrounded by the cooling means and a cooling chamber outside the cooling means. The cooling chamber is in communication with the main chamber and has a lower temperature than the main chamber. By the provision of the cooling chamber, an article is washed and dried while the organic solvent is substantially completely condensed and recovered.