Abstract: To prevent abnormal sounds made by the vibrations of the tip of a seal lip of the molding for a window plate of a vehicle which are created when the air is sucked out from the inner cavity by the difference in pressure between the inside and the outside of the seal lip when the vehicle runs at high speeds, a seal lip body 4a extends in the direction of a vehicle body panel P from the leg of the molding 1 for a window plate and a folded-back lip 4b is consecutively integrally formed such that it folded back in the opposite inward direction from the tip of the seal lip body 4a into the cavity 5 between itself and the vehicle body panel P and extends along the vehicle body panel P. When the vehicle runs at high speeds, even if the seal lip 4a is moved up by the difference in pressure between the inside and the outside of the seal lip body 4a, the folded-back lip 4b is pressed on the vehicle body panel P and thus the air does not leak from the cavity 5.

Abstract: The inflator for air bags according to the present invention includes a cylindrical housing, an inner cylindrical member provided in the housing, a central cylindrical member provided in the inner cylindrical member, a gas generant packed in an annular space between the central cylindrical member and inner cylindrical member, and an ignition structure for igniting the gas generant. The ignition structure comprises booster charge provided in one end portion of the central cylindrical member, an igniter for igniting the booster charge, and a booster member provided in the part of the central portion of the central cylindrical member which is close to the booster charge, the booster member being made of a nonexplosive material so as to constitute a rod type member extending over substantially the whole length of the central cylindrical member. The ignition structure is capable of generating lengthwise uniform ignition energy.

Abstract: A candle type chemical oxygen generator which insures complete thermal decomposition of the candle with a predetermined flow rate of oxygen while maintaining the generator housing at a low temperature. Oxygen generated as a result of the thermal decomposition of the oxygen generating candle (32) by triggering the ignition device (F'), passes through cylindrical thermal insulation (36) and an annular gap between the cylindrical thermal insulation (36) and the cylindrical member (37) which houses the candle to thereby cool the cylindrical member, and is supplied to the exterior through the oxygen supply device (S').

Abstract: A magnetic reluctance sensor can obtain a stable output without causing a curve around the center of an output waveform of an MR output even if the gap between an MR element and an MR magnet is narrowed. A stable output is obtained without causing a curve in an output waveform even if the facing interval "g" between magnet means 2 and a magnetism-sensitive element 3 is decreased, by setting a magnetism-sensitive pattern width "d" of the magnetism-sensitive element 3 to a value 0.3 to 1.0 times larger than a magnetic pole width .lambda. of the magnet means 2.

Abstract: A linear feeding system comprises a DC motor with brush, a lead screw integrally arranged as the rotational shaft of the DC motor, and a nut member screwed on the lead screw. This linear feeding system further comprises a magnet installed on the rotational shaft of the DC motor, which is provided with a plurality of N-pole and S-pole magnets being magnetized alternately in the circumferential direction, and a magnetoresistive effect sensor fixedly arranged to face this magnet. With this structure, it is possible to provide a simply structured, small linear feeding system capable of performing a high precision high-speed feeding operation at low costs.

Abstract: According to the electromagnetic driving device of the present invention, since it has a fixed member having an outside yoke and an inside yoke, a magnet for generating the thrust being bonded on either side of the outside yoke or inside yoke, and a movable member having a driven holding body portion for holding a body to be driven, and a coil wound in more than two phases in an axial direction between said outside yoke and inside yoke, and is movable in an axial direction with respect to the fixed member, in which a body to be detected is provided in said movable member, and a position-detecting element is provided in the fixed member which detects the magnetic field of said magnet and detects the position of the movable member to generate a position-detecting signal for controlling the current supply to the coil, any restrictions of the moving range and any decrease in the moving speed due to wiring and the like of the movable member are not caused, and smooth movements according to the current supply to th

Abstract: A monolithic refractory powder mixture containing from 2 to 3 wt % of spheroidized refractory particles having a mean particle size of at most 30 .mu.m of at least one member selected from the group consisting of alumina cement, alumina, titania, bauxite, diaspore, mullite, aluminous shale, chamotte, pyrophyllite, sillimanite, andrewsite, silica rock, chromite, spinel, magnesia, zirconia, zircon, chromia, silicon nitride, aluminum nitride, silicon carbide, boron carbide, zirconium boride and titanium boride, and having a cone flow value of at least 180 mm when a refractory mixture having the powder mixture kneaded by an addition of 6 parts by weight of water per 100 parts by weight of the powder mixture, is cast into a cone-shaped mold with a dimension of 70 mm.o slashed.-100 mm.o slashed..times.60 mm and left to stand for 60 seconds without exerting vibration after removing the cone-shaped mold.

Abstract: An electromagnetic actuator for moving a focusing lens along an optical axis includes a lens barrel having two supporting rails, a set of cylindrical inner and outer yokes incorporating a pair of magnets, a lens holder which holds the lens and is supported slidably on the supporting rails by means of a bearing device and rail guide provided on two arms of the lens holder, a coil wound on a bobbin which is fixed on the lens holder and located so that the coil is exposed to the magnetic field of the magnets inside the yokes. The yokes have cut portions, allowing the arms of lens holder to cut into the yokes when the lens is moved.

Abstract: A linear electromagnetic driving apparatus includes a substantially rectangular tube-shaped magnetic yoke comprised of outer and inner frame plates spaced apart to form a gap with at least one magnet secured to an outer or inner frame plate to generate magnetic flux. A bobbin supporting a coil which extends in a direction parallel to the longitudinal axis of the magnetic yoke is positioned in the gap. A driven member is secured to and coaxial with the bobbin and has openings to receive the inner frame plates of the yoke such that when the coil is energized to move the bobbin in the gap, the inner frame plates extend into and through the bobbin and into and through the openings of the driven member. A fixed shaft extends parallel to the longitudinal axis of the yoke; and a bearing secured to the bobbin structure and extending outwardly therefrom receives and is slidable on the fixed shaft.

Abstract: An apparatus for detecting an initial position of a movable lens in a lens barrel in which a lens holder retaining the lens is reciprocally movable parallel to an optical axis of the lens. The apparatus includes a magnet arrangement which has north and south polarities and is secured to either the outer periphery of the lens holder or the inner periphery of the lens barrel. A magnet flux detecting device is secured to whichever of the outer periphery of the lens holder or the inner periphery of the lens barrel to which the magnet arrangement is not secured, and is arranged such that it faces a boundary between the polarities of the magnet arrangement. The detecting device detects magnetic flux density of the magnet arrangement and outputs a voltage based on the detected magnetic flux density. The initial position of the lens is determined when the output voltage indicates zero or approximately zero.

Abstract: Hydrophilic graphite-base powder is provided wherein hydrophilic small particles of such as silicon carbide or silica are mixed with a graphite powder and the small particles are attached to each surface of the graphite particles by performing a mechanical impact treatment in a high-speed gas flow. By combining the graphite-base powders with refractory compound powders of such as magnesia or alumina to be a powder mixture for monolithic refractories containing graphite, a formed body of the powder mixture having a large bulk density can be provided and a service life thereof is comparable to that of a shaped refractory, and labor and energy necessary for the production process and the operation are saved.

Abstract: In a velocity sensor having a coil and a stick-shaped magnet inserted into the coil and magnetized such that opposite magnetic poles are provided at opposite longitudinal ends thereof, the coil and the magnet being movable relatively, the coil is wound more at the ends than at the center thereof.

Abstract: A novel lens barrel which includes a comparatively small number of parts, has a comparatively low weight and can be produced at a comparatively low cost. The lens barrel apparatus comprises an outer shell, a lens holding member holding a focusing lens thereon and mounted in the outer shell for movement in a direction of an optic axis of the focusing lens, and an actuator including an actuating coil secured to one of the lens holding member and the outer shell and wound around a coil bobbin. The actuator further includes a magnet secured to the other of the lens holding member and the outer shell in a coaxial relationship with the actuating coil around the optic axis, and a detecting coil is wound on the coil bobbin in an overlapping relationship with the actuating coil for detecting a speed of movement of the focusing lens.

Abstract: An MR position detecting device according to the present invention comprises a magnet having magnetic poles alternately magnetized at predetermined intervals, a magnetoresistive element having magneto-detectors for a plurality of phases successively disposed a predetermined distance apart, with a pair of the magneto-detectors provided for each phase. The pair of magneto-detectors for each phase change their resistance values in response to the magnetic field of the magnet, are disposed half the formed magnetic pole width, in substance, apart, and are applied with voltage at both ends of a series connection thereof so as to output a signal from the middle point of the connection. A signal processing circuit defects a change in relative position between the magnetoresistive element and magnet on the basis of a signal obtained from the outputs of the pairs of magneto-detectors for the respective phases of the magnetoresistive element therefore, the device may detect position with high resolution and accuracy.