2188 results about "Sliding contact" patented technology

The magnetic signal reproduction system comprises a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support and a reproduction head, wherein a number of protrusions equal to or greater than 10 nm in height on the magnetic layer surface, as measured by an atomic force microscope, ranges from 50 to 2500/10,000 μm², a quantity of lubricant on the magnetic layer surface, denoted as a surface lubricant index, ranges from 0.5 to 5.0, a surface abrasive occupancy of the magnetic layer ranges from 2 to 20 percent, the reproduction head is a magnetoresistive magnetic head comprising a spin-valve layer, the spin-valve layer comprises a magnetization free layer, a magnetization pinned layer and an antiferromagnetic layer, and the antiferromagnetic layer is comprised of alloy comprising iridium and manganese, and the reproduction head comes in sliding contact with the magnetic recording medium during signal reproduction.

A liquid filter cartridge system includes a housing, a valve body, a valve actuator, a filter, an inlet passage having a portion extending through each of the valve body and the valve actuator and into the filter, and an outlet passage having a portion leading out of the filter, and extending through each of the valve actuator and the valve body. An interface is located between the inlet passage portions in the valve actuator and the filter and an interface is located between the outlet passage portions in the valve actuator and the filter. The inlet passage interface and the outlet passage interface may lie in the same plane as each other. They may each comprise a face seal comprising an axial seal between the valve actuator and the filter. They may each comprise a seal between the valve actuator and the filter, wherein the two seals are sealed via compression and not via sliding contact.

A tray and rack assembly for beverage containers. The assembly includes a rack subassembly and a tray subassembly slidingly engaging said rack member. The tray subassembly includes a pair of substantially parallel tray sidewalls, a tray floor extending between the lower edges of the tray sidewalls, at least one beverage container stop member extending at least partially between the outer ends of the tray sidewalls, and a tray pull member extending from the outer end of the tray. The rack subassembly includes a pair of substantially parallel rack sidewalls, and a rack floor extending between the lower edges of the rack sidewalls. Sliding attachment means are adapted to hold the tray subassembly in sliding contact with the rack subassembly and permit the tray subassembly to be extended from and inserted into the rack subassembly.

An outer end of a seal element for a fixed scroll is extended to a position close to an end of an inside spiral wall of the fixed scroll, and an outwardly extended portion is formed at an outer periphery of a disc-shaped base plate of a movable scroll, so that a bottom surface of the movable scroll is always kept in a sliding contact entirely with the seal element during the orbital movement of the movable scroll. A thickness of the outwardly extended portion formed at the outer periphery of the disc-shaped base plate is made smaller than that of the disc-shaped base plate, so that the weight of the fluid machine can be smaller.

A knee joint prosthesis includes a femoral component for engaging the femur having an articular surface and a recess within the articular surface, and a tibial component for engaging the tibia with a bore, and a meniscal component comprising a rotation pin configured for rotatable mounting within the bore of the tibial component. The meniscal component also includes a bearing surface for sliding contact with the articular surface of the femoral component and an elongated channel defined amid the bearing surface. A stabilizing post is provided that includes a base slidably mounted with the elongated channel and a spine post projecting from the base through the channel and into the recess when the articular surface is in contact with said bearing surface. The stabilizing post thus slides within the channel when contacted by the interior of the recess in the femoral component.

A discharge container includes a cylindrical container body with a bottom which includes a support extending upward from a bottom wall along a center axis, and a fixed partitioning plate extending from a region from a peripheral wall to a bottom wall as a base end to partition the inside of the container body in a radial direction; a rotor which includes a cylindrical shaft piece rotatably engaging with the outer surface of the support, and a rotatable partitioning plate extending from the cylindrical shaft piece as a base end to be arranged in a radial direction along with the fixed partitioning plate; and a cylindrical lid with a top which has a top wall having a saucer-shaped upper surface, and a downwardly extending shaft extending downwardly from the lower surface of the top wall and engaging with the cylindrical shaft piece from above such that the downwardly extending shaft cannot rotate therein, the lid covering the cylindrical opening as a lid and rotatably engaging with the cylindrical opening, wherein the edge of the fixed partitioning plate is brought into sliding contact with the cylindrical shaft piece; the edge of the rotatable partitioning plate is formed by a spatula-shaped sliding member made of soft material and is brought into sliding and linear contact with an area from the peripheral wall to the bottom wall of the container body; the lower surface of the top wall is brought into sliding contact with the upper end surfaces of the cylindrical opening and the fixed partitioning plate and brought into contact with the upper end surface of the rotatable partitioning plate; and contents are pressed by relative rotation between the container body and the lid and are discharged through a discharge opening provided on the top wall.

A swash plate of a swash-plate compressor is subjected to sliding on shoes and is required to have excellent seizure resistance and wear resistance under the dry lubricating condition. The swash plate according to the present invention is provided with the surface-treated layer, i,e., the intermediate layer consisting of Cu, Sn or metal phosphate, and a sliding contact layer consisting of MoS2 and/or graphite and thermosetting resin.

A substrate processing apparatus has a polishing tape and a polishing head for pressing the polishing tape against a peripheral portion of a semiconductor wafer. The substrate processing apparatus polishes the wafer due to sliding contact of the polishing tape and the wafer. The polishing head has an elastic body for supporting the polishing tape. The substrate processing apparatus has an air cylinder for pressing the polishing head so that the elastic body of the polishing head presses the polishing tape against the predetermined portion of the wafer under a constant force.

The present invention provides a floating connector, used for electrical connection between electrical components and a circuit board. Multiple embodiments include a plurality of elastic contacts retained between the circuit board and an insulated housing movable laterally and orthogonally in a fixed range to accommodate misalignment. The contacts are in sliding contact with the circuit board to ensure a reliable connection without solder. The embodiments employ guiding slits to maintain electrical separation between the contacts during adjustment. Each embodiment accommodates movement in multiple directions, requires no solder, and provides for secure flexible electrical connection between an electronic component and the circuit board.

A sharpener for blades comprises a physical structure supporting at least one abrasive surface. A displaceable guiding plate having an integral linear structural feature of the support is disposed toward one side of the abrasive surface. The linear structural feature provides sliding contact with a face of the blade to establish the relative angle of the plane of the edge facet of the blade with the plane of the abrasive surface at the point of mutual contact as the facet is guided into contact with the abrasive surface.

With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional heat generation by a hard phase, a copper based sintered contact material contains shock-resistant ceramics in an amount of 0.05 to less than 0.5 wt % as non-metallic particles composed of one or more substances selected from pulverized oxides, carbides and nitrides. The shock-resistant ceramics are comprised of SiO₂ and/or two or more substances selected from SiO₂, Al₂O₃, LiO₂, TiO₂ and MgO.

A vertebral pedicle screw includes a screw body driven into a vertebral pedicle, a housing assembled to an upperend of the screw body and having grooves for seating a rod and a threaded portion for locking a fastening bolt, the fastening bolt pressing the rod positioned thereunder as it is threaded downward, and a fastening ring inserted into the housing. The vertebral pedicle screw further includes an insert placed on an outer surface of a screw head of the screw body in the housing, installed to be partially come into contact with the fastening ring on an upper portion thereof, and accommodating the screw head ofthe screw body on a curved inner surface thereof such that the insert and the screw head are brought into sliding contact with each other, whereby an entire rod-side assembly can be slidingly moved in all directions with respect to the screw body.

A two-part accommodating intraocular lens (IOL) device for implantation in a capsular bag of a patient's eye. The IOL device includes a primary lens assembly and a power changing lens. The primary lens assembly includes a fixed lens and a peripherally disposed centration member. The centration member has a circumferential distal edge and a first coupling surface adjacent the circumferential distal edge. The power changing lens has an enclosed, fluid- or gel-filled lens cavity and haptic system disposed peripherally of the lens cavity. The haptic system has a peripheral engaging edge configured to contact the capsular bag and a second coupling surface. The first and second coupling surfaces are in sliding contact with one another to permit movement of the power changing lens relative to the primary lens assembly and also to maintain a spaced relationship between the fixed lens and the lens cavity during radial compression of the power changing lens.

In order to provide a highly reliable thermoelectric device, in a thermoelectric device, a plurality of heat-radiating-side electrodes, arranged in accordance with positions where respective thermoelectric elements are to be arranged, are arrayed in an array fashion on a planer surface of a heat-radiating-side board. Heat-radiating-side end surfaces of the plurality of p-type thermoelectric elements and n-type thermoelectric elements and the heat-radiating-side electrodes are joined together by solders. Heat-absorbing-side electrodes are brought into sliding contact with heat-absorbing-side end surfaces of these thermoelectric elements.

A roller cone bit is provided that includes a wear resistant diamond-like carbon coating applied to a bearing shaft, where it is in sliding contact with the bearing seal. The wear resistant diamond-like carbon coating reduces wear and corrosion of the head bearing shaft sealing surface and provides extended life to the bearing seal.

A hatch cover with spring assembly to assist in lifting open the hatch cover lid. The lid is hinged to a frame so it can be rotated about the hinge to an open position. A spring or a pair of springs are attached to the underside of the lid. Each spring is a torsion spring having one arm selectively attached to the lid, and another arm in sliding contact with the frame. For ease of repair or replacement, the spring is attached only to the lid. In addition, attaching the spring to the lid allows the spring to retract when the lid is opened. The method for assembling the hatch includes the step of selectively attaching the spring to the lid underside. This step may be performed when the lid is detached from the frame.

In one embodiment, the present invention pertains to a night light assembly which plugs directly into an electrical wall receptacle to provide a beam of light that can be directed along different paths. The assembly comprises a housing having a plug with projecting blade contacts for insertion into a wall receptacle and a light sensor for automatically controlling the activation and de-activation of the lamp of the nightlight. A cover member rotatably supported by the housing includes a lens, a low wattage lamp, a support member, and a lamp retaining member. The low wattage lamp in the cover assembly is coupled, via sliding contacts, to the blade contacts in the base housing. This arrangement allows the cover and the lamp to be rotated as a unit relative to the base housing without limitation. The lamp retaining member is non-rotatably coupled to the cover and is rotatably engaged by a retaining member fixed to the housing member. The longitudinal axis of the low wattage lamp located in the lamp retaining member is aligned along the rotational axis of the lens in the cover to permit both direct and reflected light to pass through the lens in the cover without being obstructed by the base of the lamp. The disclosed assemblage is a new improved nightlight of simple design which provides increased light and can be manufactured and sold at relatively low cost. The low wattage lamp used in the nightlight can be either an incandescent bulb or a light emitting diode (LED) such as an ultrabright white LED either as a single bulb or a cluster of 2 or more bulbs. A photo sensitive circuit can be provided to automatically energize the incandescent bulb or the LED during low light conditions. When an LED is use as the light source, the LED is energized by a new improved power supply that is both simple in design and more efficient in operation than the standard power supply circuit used for LED's.

Disclosed is a copper alloy sliding material comprising 0.5 to 15 mass % Sn and 0.1 to 10 vol % of hard particles consisting of one or more selected from WC, W2C and Mo2C. The hard particles have preferably an average particle size of 0.1 to 10 mum, whereby they are dispersed in the copper alloy matrix so as to make the sliding-contact surface uneven, from which the hard particles protrude partially. The sliding material comprises an amount or a total amount of not more than 40 mass % of one or more selected from Ni, Ag, Fe, Al, Zn, Mn, Co, Si and P, an amount or a total amount of not more than 10 mass % of Bi and/or Pb, and/or an amount or a total amount of not more than 10 vol % of a solid lubricant comprising BN, graphite, MoS2 and/or WS2.

A female housing (20) includes a terminal-accommodating portion (21) adapted to accommodate female terminal fittings (29) and having different vertical and horizontal dimensions. A lock (31) is provided on a shorter outer surface (21D) of the terminal-accommodating portion (21). Connection guides (50) are formed in inner surfaces of a receptacle (12) of a male housing (10) and extend in an inserting direction of the terminal-accommodating portion (21). Guidable portions (70) are formed on outer surfaces of the terminal-accommodating portion (21) of the female housing (20) for sliding contact with the connection guides (50) when the terminal-accommodating portion (21) is fit into the receptacle (12).

Provided is a prefabricated construction method for a prestressed concrete box girder. Firstly, a prefabricated girder field is constructed; a prefabricated pedestal is manufactured in a prefabricated area; a lateral mold is erected on the pedestal; a steel reinforcement framework is put into the lateral mold; an inner mold and an end mold are installed; then concrete pouring and concrete maintenance are conducted; after the intensity of the concrete reaches 90% of the designed intensity and the maintenance time is longer than 7 days, prestress tension and grouting of a pore canal are conducted; and after the intensity of a grouting test block in the box girder pore canal reaches 90% of the designed value, the grouting test block is moved to a girder storage area. Steel reinforcement machining is conducted through a numerical control steel reinforcement bending machine, so that the machining precision and efficacy of steel reinforcement are improved; an automatic spraying and maintaining system is adopted, so that accuracy of maintenance time and reliability of maintenance quality are ensured; an intelligent tensioning and grouting system is adopted, so that automation and refinement of tensioning and grouting are achieved; a sliding contact line power supply system is adopted, so that power use safety is ensured. The standardization, factorization, intelligence, refinement and automation of the prefabricated construction method for the prestressed concrete box girder are achieved.

A grooming tool is provided that includes a safety razor assembly adjoined to a hair trimmer assembly. Both assemblies include a housing. The housings may be separable or may be integrally formed. The trimmer assembly includes a motor operably connected to a moving toothed blade. A second toothed blade is removably mounted to the housing of the trimmer. One end of the leaf spring is disposed in a suitably sized recess of the trimmer housing and the opposed second end bears against a driver of the moving blade to maintain sliding contact between the toothed portions of the two blades during operation. When a user removes the second toothed blade, the moving blade may be separately removed while the leaf spring is retained in its recess. Both housings have a width less than 25 mm and the grooming tool is ergonomically familiar to a typical safety razor user.

A wind turbine rotor including a rotor hub (3) and a plurality of blades (4), and where each blade root (16) is connected to said rotor hub through a pitch bearing (5) in such a manner that the pitch angle of the blade is adjustable by a turning of the blade about its longitudinal axis relative to the rotor hub. The blade is provided with at least one electrically conducting lightening down-conductor (6) extending in the longitudinal direction of the blade to the blade root and being electrically isolated from the pitch bearing (5). A spark gap (15) is provided between the lightning down-conductor and the rotor hub, said spark gap (15) being adapted to conduct a lightning current passing through the lightning down-conductor. A sliding contact connection (7, 12) is provided parallel to the spark gap (15) between the lightning down-conductor (6) and the rotor hub (3), said sliding contact connection ensuring electrical contact between said lightening down-conductor (6) and said rotor hub (3) irrespective of the pitch angle of the blade. The invention also relates to a wind turbine including such a rotor.

There is provided a sliding member including a base body and a hard carbon coating formed on the base body to define a sliding surface for sliding contact with an opposing member under lubrication according to one embodiment of the present invention. The hard carbon coating has an outermost surface portion lower in hydrogen content than a remaining portion thereof, or an outermost coating layer lower in hydrogen content than at least one other coating layer.

A CO2 compressor is disclosed for forcing and moving a lubricant under discharge pressure. If the oil path is reduced in size or a pressure reducing part is inserted to handle the large differential pressure caused between the discharge pressure and the intake pressure, the oil path would become liable to be easily clogged by foreign matter. In view of this, an intermittent oil supply mechanism is formed in the oil path using the sliding contact portion between a fixed member of the compressor body and a movable member. Thus, the substantial lubrication time period is shortened and the amount of oil supplied is limited.

A high pressure piston for use within a liner for a reciprocating pump comprises an elastomeric seal and a metallic annular bearing ring having relatively high heat conductivity compared to the liner and seal. During the pump's pressure stroke a portion of the bearing ring elastically expands radially to narrow or close the extrusion gap. Narrowing the gap decreases the tendency for extrusion of piston seal elastomeric material, while closing the gap tends to block elastomer extrusion and establish sliding contact between the bearing ring and the liner. Sliding contact between the bearing ring and liner prevents portions of the piston hub (e.g., a transverse flange) from contacting the liner and damaging it. The heat-conductive bearing ring improves scavenging of frictional heat near the extrusion gap, extending the service life of piston seal elastomer while reducing bearing ring and liner wear. Under reduced pressure on the pump's return stroke, the bearing ring elastically contracts radially, slightly widening the extrusion gap. On the pump's return stroke the slightly wider extrusion gap allows cooling water directed generally toward the proximal flange of the piston hub to better cleanse, as well as cool, the liner wall.

A direct current motor rotation control apparatus, a method and device for controlling a rotational speed of a direct current motor, and an apparatus having the direct current motor rotation control apparatus. The apparatus and device control rotational operations of a direct current motor such that the direct current motor rotation control apparatus includes at least one rotation detecting brush which detects a signal indicative of an operation of the direct current motor, a motor driving circuit which drives the direct current motor by applying the direct current drive voltage to the pair of electrode brushes, a reference voltage generating device which generates a reference voltage a comparator which compares a voltage detected by the rotation detecting brush with the reference voltage generated by the reference voltage generating device and produces an output comparison voltage, and a motor control circuit which adjusts the direct current drive voltage based on the output comparison voltage. The direct current motor includes including a stator, a rotor with a rotation shaft and rotor coils, a commutator connected to the rotor coils, and a pair of electrode brushes in sliding contact with the commutator. The at least one rotation detecting brush contacts the commutator at a different axial position from an axial position contacted by the pair of electrode brushes. The comparator can compare a voltage detected by the rotation detecting brush with the reference voltage generated by the reference voltage generating device and produces as a comparison voltage output pulses of voltage. As such, the motor control circuit can determine an instantaneous rotational speed and adjust the drive voltage to the pair of electrode brushes accordingly.

The invention discloses a small two-stage light-gas gun and relates to a light-gas gun. The small two-stage light-gas gun comprises a cylinder barrel, a pressure transmitting tube, a pressing column, a launching tube, a piston handle, a pressure transmitting body, a membrane, a membrane rupturing device, a first sealing ring, a metal sealing ring, a support and a plurality of supporting seats; a piston on the piston handle is in sliding contact with the inner circumferential surface of a gas chamber; one end of the pressure transmitting tube is connected with a gas port in a threaded manner, and the pressure transmitting tube is hermetically connected with the pressing column; the pressure transmitting body is mounted in the pressure transmitting tube; the first sealing ring and the metal sealing ring are mounted in a mounting groove from the inside to the outside, the membrane is hermetically connected with the membrane rupturing device, and the membrane rupturing device is hermetically connected with the launching tube; the cylinder barrel is mounted on the support, and the pressure transmitting tube and the launching tube are respectively detachably connected onto the supporting seats. The small two-stage light-gas gun has the advantages that problems that an existing light-gas gun is driven by gunpowder at a primary stage, accordingly, environments are polluted, occupied space is large, sealing cannot be carried out in a membrane rupturing procedure implemented by the aid of high-pressure gas and the bullet launching speed cannot be increased are solved, and the small two-stage light-gas gun is used in fields of spacecrafts or research on material performance and the like.

A direct-current motor includes a stator having a magnetic field system, a rotor disposed around the stator, a commutator which rotates together with the rotor, and power supply brushes which are urged in the axial direction by urging members so as to come into contact with the sliding contact surfaces. The rotor includes an armature core around which armature coils are wound, and a rotary shaft which rotates together with the armature core. The commutator has segments extending radially. The segments have sliding contact surfaces orthogonal to an axial line of the rotary shaft. At least a part of each power supply brush comes into contact with the sliding contact surface at a position further radially outward than the armature coil.

A fluid dispenser comprising a fluid reservoir of variable working volume, at least one deformable wall defining an inside surface, and a dispenser orifice through which the fluid is dispensed while the working volume of the reservoir is being reduced by deforming the deformable wall, the dispenser further comprising a piston element that is in leaktight sliding contact with the inside surface of the deformable wall, said piston element comprising an upstream face that is not in contact with the fluid, and a downstream face that is in contact with the fluid and that forms a displaceable wall of the reservoir, said upstream face being separated from said downstream face by a zone that is in leaktight contact with the inside surface.

[Objective]: To provide a low-cost piston member for syringes, with sufficiently satisfying slidability and sealing performance such as non-leakage and vapor impermeability, without size limitation, from small to large diameters.

[Solution]: A piston member 10, such as a gasket 10a or a middle piston 10b, is formed by cut-processing a PTFE block and is press-fitted in a syringe barrel 1 to be slidably used. Protruded rims 13 are formed at least in a circumferential direction of perimeter of a slide-contact surface 11a adjacent to a liquid contact surface 14 of a drug solution 30, in a slide-contact surface 11 of the piston member 10, slidingly making contact with an inner circumferential surface 2 of the syringe barrel 1. After cut-processing, pitch P of the protruded rims 13 is 50 μm or smaller, and press-fit margin T to the syringe barrel 1 is 10 to 150 μm.