82results about How to "Constant gap" patented technology

A wind turbine system is provided to generate electricity from wind energy. The system locates generator at a bottom portion of the tower. The system rotates either the entire tower, or the nacelle and the generator simultaneously. A flexible power transfer member inside the tower connects a top rotation transfer member and the bottom rotation transfer member to transfer wind energy captured by the turbine rotor from the top rotation transfer member to the bottom rotation transfer member. A pitch mechanism to rotate the rotor blades in a desired angular position about the rotor blades longitudinal axis is also provided.

The invention provides a method for increasing the usable surface area of a semiconductor wafer having a substantially planar surface and a thickness dimension at right angles to said substantially planar surface, the method including the steps of selecting a strip thickness for division of the wafer into a plurality of strips, selecting a technique for cutting the wafer into the strips at an angle to the substantially planar surface, in which the combined strip thickness and width of wafer removed by the cutting is less than the thickness of the wafer, cutting the wafer into strips using the selected technique and separating the strips from each other.

An adjustable instrument panel for a mass assembled vehicle includes a transverse upper support beam which is generally fixed with respect to the vehicle during assembly. A central stack modular structure is pivotably suspended from the upper support beam and adapted to house one or more vehicle options such as a radio, CD, and air conditioning control. The central stack modular structure is combined with a floor console as a unitary structure which has a lower support brace to adjustably connect the unitary structure with respect to the vehicle floor so that the instrument panel can accommodate floor build variations and obtain flow-through with the floor console in vehicles being mass assembled.

A chain tensioner includes a housing having a cylinder chamber. A plunger is slidably mounted in the cylinder chamber. A spring is mounted in the cylinder chamber to bias the plunger outwardly of the cylinder chamber. The plunger has a radially extending locking pin at its lower portion near its front end. The housing is formed with a pin hole extending substantially perpendicular to an axis of the cylinder chamber near the front end of the housing and under the cylinder chamber. The chain tensioner further includes a support pin inserted in the pin hole, and a locking lever supported on the support pin so as to be pivotable about the support pin. The locking lever can engage the locking pin when the plunger is sufficiently pushed into the cylinder chamber, thereby keeping the plunger pushed in the cylinder chamber.

The invention provides a method for increasing the usable surface area of a semiconductor wafer having a substantially planar surface and a thickness dimension at right angles to said substantially planar surface, the method including the steps of selecting a strip thickness for division of the wafer into a plurality of strips, selecting a technique for cutting the wafer into the strips at an angle to the substantially planar surface, in which the combined strip thickness and width of wafer removed by the cutting is less than the thickness of the wafer, cutting the wafer into strips using the selected technique and separating the strips from each other.

A dressing bars for embedding abrasive particles into a substrate at a substantially uniform height. Spacing pads, hydrostatic and / or hydrodynamic fluid bearing (air is the typical fluid) maintains a constant spacing and attitude between the dressing bar and the substrate. The fluid bearing permits the dressing bar to maintain a desirable stiffness between the lapping plate and the dressing bar. The bar geometry and fluid bearing design permits the bar to mitigate or compensate for the micrometer-scale and / or millimeter-scale wavelengths of waviness on the substrate, while maintaining a substantially constant clearance to uniformly embed the abrasive particle into the substrate.

An aircraft includes an airframe; an extending tail; a counter rotating, coaxial main rotor assembly including an upper rotor assembly and a lower rotor assembly; a translational thrust system positioned at the extending tail, the translational thrust system providing translational thrust to the airframe; an upper hub fairing positioned at the upper rotor assembly; a lower hub fairing positioned at the lower rotor assembly; and a shaft fairing disposed between the upper hub fairing and the lower hub fairing; wherein a geometry of at least one of the upper hub fairing and the lower hub fairing progressively blends from a circle to a series of curved elliptical surfaces in an inboard direction.

A liquid crystal display device includes a plurality of columnar spacers configured to maintain a constant gap between substrates on a color filter substrate of the liquid crystal display device. At a tip end of each of the columnar spacers contacting an array substrate, a height adjusting portion which is easily deformed as compared to a portion of the columnar spacer other than the tip end portion when the pair of substrates are bonded together is provided.

A garment hanger has a hanger body, a clasp and at least one engaging element. The hanger body has a plurality of first rounded teeth formed respectively along sides thereof, with a constant clearance between adjacent teeth. Each of the first rounded teeth has a top larger than its bottom to form a small mouth between the tops of two adjacent teeth. A hooked neck is connected to a roof of the hanger body. A pair of round notches is respectively disposed on exterior edges of a hook portion of the hooked neck in a symmetrical manner. The clasp has a protruding button and a tab at opposite ends. The protruding button and the tab respectively engage with the notches of the hooked neck. The engaging element has second rounded teeth properly spaced on one side thereof to respectively fit in clearances formed by the adjacent first teeth.

A mixed mother alloy is prepared from a solder mixture comprising a pyrolyzable flux and high melting point metal particles, the mixed mother alloy is charged into a large amount of molten solder and stirred, and a billet is prepared. The billet can then be extruded, rolled, and punched to form a pellet or a washer, for example.

A drum brake device that functions as a leading-trailing (LT) type when the service brake is applied, and as a duo-servo (DS) type when the parking brake is applied, in which the automatic shoe clearance adjustment mechanism functions precisely for a prolonged period, thereby generating no strange noise. This mechanism also eliminate any impact load applied to any of the components, thus enabling a lighter device. The middle segment of a long link 11 is pivotable in the middle of the one brake shoe 2.

A chain tensioner includes a housing having a cylinder chamber. A plunger is slidably mounted in the cylinder chamber. A spring is mounted in the cylinder chamber to bias the plunger outwardly of the cylinder chamber. The plunger has a radially extending locking pin at its lower portion near its front end. The housing is formed with a pin hole extending substantially perpendicular to an axis of the cylinder chamber near the front end of the housing and under the cylinder chamber. The chain tensioner further includes a support pin inserted in the pin hole, and a locking lever supported on the support pin so as to be pivotable about the support pin. The locking lever can engage the locking pin when the plunger is sufficiently pushed into the cylinder chamber, thereby keeping the plunger pushed in the cylinder chamber.

A force sensor includes a shaft to which a magnet is fixed, and a case which can reciprocate with respect to the shaft and to which a Hall IC element is fixed. The Hall IC element outputs an output voltage which changes in accordance with relative displacement between the Hall IC element and the magnet. A main spring is interposed between the shaft and the case and elastically deforms in accordance with force produced between the shaft and the case in the reciprocating direction. A sub spring is provided in order to impart a preload such that when the amount of elastic deformation of the main spring is substantially zero, no axial clearance is formed between a flange portion of the shaft and one end portion of the main spring, and no axial clearance is formed between the case and the other end of the main spring.

Disclosed is an electronic disc brake. The electronic disc brake includes a caliper housing at which a piston is installed, a carrier coupled with the caliper housing, a pair of pad plates installed at the carrier to be slidable toward a disc, an adjuster to prevent the pad plates from moving away from the disc and maintain the pad plates at a certain distance from the disc, a push rod screw-coupled to the adjuster, a spindle unit coupled to the push rod and installed at a cylinder of the caliper housing, a spring case forming an accommodation space between the cylinder and the push rod, a low-pressure spring and a high-pressure spring arranged in parallel in the spring case, and a support plate slidably installed in the cylinder so that a gap is formed between the low-pressure spring and the high-pressure spring in the longitudinal direction.

A high pressure tank includes a resin liner, a cap, a seal member, and a collar. The liner contains fluid. The cap has a supply / discharge hole for supplying / discharging the fluid to / from the liner. The collar has a passage hole connected to the supply / discharge hole. A tubular portion of the liner is inserted into the supply / discharge hole, and held between an outer circumferential surface of the collar and an inner circumferential surface of the supply / discharge hole. The seal member is provided in a seal groove formed in the inner circumferential surface of the supply / discharge hole. A fluid inlet channel is formed at least in one of the cap and the collar, for guiding the fluid from a protruding end of the tubular portion into the seal groove through space between the inner circumferential surface of the supply / discharge hole and the outer circumferential surface of the tubular portion.

A shearing device for an extrusion press is adapted for cutting off from each other an extruded product and a discard which is the residue of a billet, the shearing device being configured so that the configuration thereof is simplified to reduce costs required for maintenance and production and so that the gap between the shear blade and an end surface of a die is automatically adjusted to improve the shearing accuracy, thereby providing a satisfactory cut surface. A shear cylinder (21) is mounted in a downward facing position to a frame (16) provided on the side of an end platen (11) which faces a container (10). A shear guide (18) is mounted to the frame (16) in a tiltable manner, the shear guide (18) having a shear blade (24) which is provided at the lower end thereof and guiding a shear slide (23). A tilt cylinder (19) for the shear guide (18) is mounted to the frame (16), the tilt cylinder (19) being capable of keeping the gap between the front face of a die stack (12) and the shear blade (24) constant by pressing the shear guide (18) against a horseshoe (26). The piston rod (22) of the shear cylinder (21) is mounted to the shear slide (23) so as to be capable of tilting and sliding.

A heat transfer plate comprising a first port opening and a second port opening for allowing a first fluid to flow over a top surface of the heat transfer plate, a first side opening and an opposite, second side opening for allowing a second fluid to flow over a bottom surface of the heat transfer plate, a number of rows of alternating tops and grooves that extend along the heat transfer plate, where a transition between a top and an adjacent groove is formed by an inclined portion, and plate portions that extend along the heat transfer plate, between the rows of tops and grooves, thereby forming flow channels between the rows of tops and grooves.

A method for wrapping a mat (52) around a catalyst (57) used in an exhaust gas cleaning device and compressing the mat is disclosed. Odd-numbered first presser (15), third presser (24), and fifth presser (32) are caused to move forward in the manner of the arrow (3), and the mat is compressed. The mat is then completely compressed by causing even-numbered second presser (19), fourth presser (31), and sixth presser (33) to move forward.

The invention discloses a steel pipe seam joining and welding integrated machine. The steel pipe seam joining and welding integrated machine comprises a main frame, a main oil cylinder which is connected to the main frame and arranged in the vertical direction, a welding mechanism which is connected to the main frame and located above steel pipes, a conveying device which is located on the lower portion of the main frame and used for conveying the to-be-welded steel pipes, and side frames located on the left side and the right side of each steel pipe. Press roller assemblies for fixing the left side and the right side of each steel pipe are connected to the side frames. According to the steel pipe seam joining and welding integrated machine, a bracket set is arranged, clamping slices are arranged in the bracket set, thus, seams of the steel pipes keep constant all the time, the welding difficulty is lowered, the welding efficiency is improved, the widths of the welded steel pipe seamskeep uniform, and the structural strength of the steel pipes is ensured.

The invention discloses a movable-type grinding wheel polisher dust hood, a dust collecting device and a dust control method. The dust hood is a semi-closed grinding wheel dust hood, and the dust hood can move up and down in the vertical direction. Compared with an existing dust hood, the movable-type grinding wheel polisher dust hood is good in seal effect and low in spillover dust; a gas between a grinding wheel and a polished surface is constant, the working is stable, the exhaust air rate is small, the structure is simple and compact, and the manufacturing cost is low.

An electromagnetic coil for electromagnetic valve is provided, which belongs to the electromagnetic control parts. The existing coil has narrow using scope of voltage and large temperature raising volume when being switched on. The invention comprises a winding soil sealed on a framework by an insulated covering and a magnetizer located outside the insulated covering; a down-lead terminal is configured outwards from the winding coil and the framework is attached with internal holes. The invention is characterized in that: a flux sleeve pipe is configured on hole wall of at least one end of the framework internal holes, which shears the same internal diameter with the framework internal holes, so as to form continuous through holes with equal diameter at internal side of the framework and the flux sleeve pipe. When switching on for the coil, the magnetic contour is able to form a loop through the sleeve pipe, which eliminates the ''dead angle'' phenomenon, increases the magnetic flux area at magnetic flux route bottle-neck at two ends of the coil, reduces the magnetic reluctance, lowers the lose of magnetic force, strengthens magnetic field of the overall coil, improves the valve opening performance of the coil, reduces the lose and consumption of magnetic force, thereby deducing the temperature rising of coil and increasing the reliability of valve.

A sheet feed assembly for feeding sheets of material having a known bending stiffness through a device with low friction. The sheet feeding assembly has feed path structures for defining a feed path, the feed path having a first point with a first radius of curvature, a second point with a second radius of curvature and a transition section extending between the first point and the second point. The transition section defines conforms to a shape adopted by one of the sheets of material extending from the first point where it has a curvature of the first radius, to the second point where it has a curvature of the second radius.

A light source apparatus includes a discharge lamp including a light-emitting container having a cavity in which a discharge medium is enclosed, and a pair of electrodes disposed such that respective tip portions thereof oppose each other in the cavity, and a driving unit that supplies a driving current to the pair of electrodes. The driving current is generated by modulating amplitude of alternating current having a frequency not lower than 1 kHz and not higher than 10 GHz, such that a first section and a second section in which the amplitude is smaller than in the first section are alternately repeated.

The present invention relates to a rack bar supporting device for a vehicle steering apparatus. According to the present invention, a clearance between the rack bar and a support yoke can be kept always constant when the vehicle steering apparatus is operated, which makes it possible to reduce operational friction and noise, to maintain the supporting force of the support yoke and the rack bar to be constant for a long time, and to improve a steering feeling of a driver.

The present invention relates to a plasma generating device, a method of cleaning a panel, and a method of manufacturing a display panel using the same. In the present invention, a pair of dielectric plates 52 and 52′ are detachably installed to a nozzle head 50. To this end, an upper end of the dielectric plate 52 or 52′ is inserted into a seating slit 49 formed in a lower portion of a chamber housing 46, and a lower end of the dielectric plate 52 or 52′ is securely placed on and fixed to a stepped portion 59 formed in a lower end of an electrode cover 58. Further, in order to maintain a gap 53h between the dielectric plates 52 and 52′, spacers 64 are inserted in both ends of the gap 53h. According to the present invention so configured, uniform plasma can be generated since the gap between the dielectric plates can be kept constant. Further, the dielectric plates can be easily exchanged and maintained.