43results about How to "Smooth contact surface" patented technology

This protective hand guard utilizes a gelatinous cushion to provide protection and shock absorption for the anatomical structures of the human hand. The hand guard aids in protecting and preserving the hand both externally from cuts and abrasions, and internally from fractures, damage to joints, ligaments, tendons, cartilage, and other anatomical structures found in the human hand. The protection provided by the hand guard is such as to provide a medium for shock absorption, particularly during direct contact or impact sports and or occupations.

A joystick controller has a lever mounted for pivotal movement relative to a housing, a seat member affixed to the housing, and a slider member biased towards the seat member. The seat member has a profiled surface that cooperates with a corresponding surface of the slider member. In one aspect, the profiled surface includes at least one lock position for engaging the slider member at a predetermined angle of pivotal displacement of the lever about a first axis. The slider member is shaped to allow pivotal movement of the lever about a second axis, without movement of the slider member, but to prevent movement of the lever about the first axis when engaged in the lock position. In another aspect, the profiled surface has a profile in a first direction whereby the biasing force remains substantially constant when the lever is pivotally displaced about a first axis, and a profile in a second direction whereby displacement of the lever about a second axis displaces the slider member so as to alter the biasing force.

A urine collector for collecting urine for a user includes a basin which includes a collector including a bottom wall and a surrounding wall upwardly extended therefrom to define a cavity and a top opening, and a top cover supported on the top opening of the collector; and a urine guider provided at the bottom wall of the collector for collecting urine at a peripheral portion thereof for collecting the urine at the urine guider within the cavity of the collector, wherein the bottom wall of the collector further includes an enlarge bottom base defining a circular guiding slot, and an inner concave guiding bottom extended inward and upward from the enlarge bottom base, so that the enlarge bottom base enhances a stabilization of the collector, wherein the urine guider is provided at the inner concave guiding bottom.

A portable ramp system made according to this invention includes a pair of interconnected ramps for use with high-centering wheeled lawn equipment such as commercial walk-behind mowers. The ramps allow the equipment to move between a first lower elevation and a second higher elevation without its front wheels becoming airborne as the equipment traverses the ramps in a forward direction. The ramps are connected to one another by a flexible tether that allows the distance between the ramps to be easily adjusted and provides a means for stowing the ramps over the handles of the equipment The ramps may be stowed in a holder secured to the equipment deck. Magnets may be included in a bottom portion of the ramp to provide an optional means for stowing the ramps on the equipment.

The invention discloses a personnel monitoring system for a transport inclined shaft, which comprises a system main control box, wherein the system main control box is connected with an optically controlled sensor, a door in-place sensor and a vision sensor, and analyzes and processes data acquired by the optically controlled sensor, the door in-place sensor and the vision sensor; and the system main control box is connected with and controls an explosion-proof electromagnetic lock, realizes the interlocking of driving vehicle and pedestrians in the transport inclined shaft, and ensures that people and vehicles cannot synchronously walk. The system main control box is connected with and controls a monitor, an alarm voice box and a console, the vision sensor comprises a vision server, and the vision server is connected with an explosion-proof camera, and uploads data acquired by the explosion-proof camera to a host computer which is connected with a network switch and is arranged in a ground dispatch room. The system achieves the aims of monitoring the pedestrians in the transport inclined shaft by a winch driver and monitoring personnel of the dispatch room and realizing the automatic control by analyzing and processing signals acquired by the sensors, realizes closed inclined shaft transportation, and ensures that no people walk when the vehicles are driven and no vehicle is driven when people walk.

An aircraft door mechanism includes a solenoid connected to a support assembly. The solenoid displaces the latch pin between a solenoid energized and a solenoid de-energized position. A catch assembly rotatably connected to the support assembly is positioned to engage a 3½ degree or less taper portion of the latch pin in the solenoid energized position. When the latch pin moves to the solenoid de-energized position, a latch bolt supported by the door rotates the catch assembly. The latch bolt includes a distal bulbous end which multiplies the force applied to the door to rotate the catch assembly. If the latch pin is extended, a substantially greater force is required to force the latch pin to the solenoid de-energized position owing to the reduced taper of the latch pin. Authorized door entry is therefore easier and unauthorized door entry is made more difficult.

The invention provides a thin-film solar cell. Electrode grooves are formed in a low-resistance window layer, and collection electrodes are deposited in the electrode grooves respectively. On the premise that the thickness of a buffer layer and the thickness of a high-resistance window layer are large enough so that the density of a film layer of the thin-film solar cell can be ensured, the photon-generated carrier recombination probability of an interface can be effectively lowered. Due to the fact that the collection electrodes are arranged in the electrode grooves respectively, the thickness of the portions, in the perpendicular direction of the contacting areas of the collection electrodes and the electrode grooves, of the high-resistance window layer can be reduced, the internal resistance of the solar cell can be effectively reduced, the output power of the solar cell can be improved, meanwhile, the contact area between the collection electrodes and a transparent window layer composed of the high-resistance window layer and the low-resistance window layer is increased, the collection rate of the collection electrodes for photon-generated carriers is improved, and the output power of the thin-film solar cell is further improved. In addition, a method for preparing the thin-film solar cell is simple in process and allows large-scale industrial production to be easily achieved.

A joystick controller has a lever mounted for pivotal movement relative to a housing, a seat member affixed to the housing, and a slider member biased towards the seat member. The seat member has a profiled surface that cooperates with a corresponding surface of the slider member. In one aspect, the profiled surface includes at least one lock position for engaging the slider member at a predetermined angle of pivotal displacement of the lever about a first axis. The slider member is shaped to allow pivotal movement of the lever about a second axis, without movement of the slider member, but to prevent movement of the lever about the first axis when engaged in the lock position. In another aspect, the profiled surface has a profile in a first direction whereby the biasing force remains substantially constant when the lever is pivotally displaced about a first axis, and a profile in a second direction whereby displacement of the lever about a second axis displaces the slider member so as to alter the biasing force.

The invention provides an arc jet nozzle for producing an amorphous thin belt. The middle of the arc jet nozzle is transversely hollowed out to form a cavity. One or more reinforcing ribs are reserved at the hollowed-out position. The edges, close to the four stand sides of the arc jet nozzle, of the cavity are all in convex arc streamline shapes. A jet seam is reserved below the cavity. According to the arc jet nozzle for producing the amorphous thin belt, the internal structure of a jet nozzle in the prior art is optimized, the amount of liquid steel inside the jet nozzle is small, the temperature field is stable, no eddy and no dead zone exist, the belt material yield is high, and the belt material production efficiency is improved.

The present invention provides a method for forming ohmic contact. According to the method, after a metal silicide layer having thermal stability is formed, a barrier layer and a metal layer are removed, so that the metal silicide layer can be exposed; deionized water of which the temperature is larger than a first preset temperature is adopted to clean a wafer for the first time, so that oxide particles can be decomposed into small particles; deionized water of which the temperature is smaller than or equal to a second preset temperature is adopted to clean the wafer for the second time; andthe flow rate of the deionized water for the second cleaning is greater than 50L / min, the impact force of the water flow is large, so that the oxide particles can be removed. The water flows with different temperatures and different flow rates are utilized to wash the wafer, so that a better cleaning effect can be realized, and therefore, the oxide particles on the metal silicide layer can be removed, the oxide particles on the metal silicide layer are effectively reduced, and thus, an ohmic contact surface is smoothened, and the reliability and yield of a device can be improved.

An aircraft door mechanism includes a solenoid connected to a support assembly. The solenoid displaces the latch pin between a solenoid energized and a solenoid de-energized position. A catch assembly rotatably connected to the support assembly is positioned to engage a 3½ degree or less taper portion of the latch pin in the solenoid energized position. When the latch pin moves to the solenoid de-energized position, a latch bolt supported by the door rotates the catch assembly. The latch bolt includes a distal bulbous end which multiplies the force applied to the door to rotate the catch assembly. If the latch pin is extended, a substantially greater force is required to force the latch pin to the solenoid de-energized position owing to the reduced taper of the latch pin. Authorized door entry is therefore easier and unauthorized door entry is made more difficult.

A press fabric for a machine for the production of web material, especially paper or cardboard, including a carrying structure and a plurality of layers on one web material contact side of the carrying structure, whereby polymeric material is contained in at least one of the layers of fibrous material.

A kind of large-scale high-speed machine complete texture, motor includes engine base, end cap, stator, axes, rotor and bearing, thereinto, the engine base is box structure, two dabbers or above are set on upper, lower, lest and right side board, wall of engine base is processed by steel plate whose thickness is 40mm+-3; the end cap is one-shot formed by steel plate whose thickness is 50mm+-3, contact face between end cap and engine base and bearing are smooth, they are sealed with each other; stator, the iron core of the stator fixed with three integral round steel plate whose thickness is 20mm+-3, the iron core of the stator is shaped with built-in craftwork; axes and rotor iron core are processed by thermal process; the bearing is end bracket type bearing, and possesses two floating type seals, outer possesses outer cover. Advantages are: optimization design makes resonance of motor and other electric property fulfill design requirement, and it can fulfill operating requirement of open-air or dust is big, box structure can increase rigidity of engine base, and decrease resonance of motor.

A press fabric for a machine for the production of web material, especially paper or cardboard, including a carrying structure and a plurality of layers on one web material contact side of the carrying structure, whereby polymeric material is contained in at least one of the layers of fibrous material.

The invention discloses a printer. The printer comprises a housing, wherein a paper roll placing cavity, a fixing frame and a control circuit are arranged in the housing, the fixing frame is provide with a printing head, a paper output port corresponding to the printing head is arranged on the housing, the paper roll placing cavity is provided with a winding shaft, the fixing frame is provided with an operation control portion, an operation open window is disposed on one side of the housing, a cover plate is arranged on the housing, the cover plate is matched with the operation open window, and after the cover plate covers the operation open window, the cover plate is opposite to the shaft end of the winding shaft and covers the operation control portion. The printer is convenient to operate, difficult to be damaged, and high in reliability when used to print.

The invention relates to a plate cabinet mounting lifting frame of an urban rail transit power supply system. The plate cabinet mounting lifting frame is wholly of a detachable structure. The plate cabinet mounting lifting frame comprises an I-shaped steel beam and first vertical columns, wherein the first vertical columns are arranged below the I-shaped steel beam, the first stand columns are movably connected with second stand columns, and a plurality of positioning pins used for adjusting the heights are arranged on the second stand columns; a pulley block and an electric hoist are movablyconnected below the I-shaped steel beam, universal wheels are arranged below the second stand columns, base steel channels are arranged between the second stand columns and the universal wheels, inclined supporting steel channels for supporting the second stand columns and the base steel channels are arranged between the second stand columns and the base steel channels; and the universal wheels are provided with brake systems. The plate cabinet mounting lifting frame has the advantages that the electric hoist is directly installed on the movable pulley block on the lifting frame to carrying out hoisting installation on a plate cabinet, so that the damage and pollution to a structural beam or the wall top is reduced; the plate cabinet mounting lifting frame is high in structural strength, and not easy to deform; and the plate cabinet mounting lifting frame greatly improves the installation efficiency of the plate cabinet, saves the labor, and reduces the safety risk of aloft operation.

The present invention provides a method and a NAND-type flash memory device. The method includes forming a select gate oxide layer in a select transistor area of a substrate and a tunnel oxide layer in a memory cell area of the substrate; forming a doped amorphous silicon layer on the select gate oxide layer and the tunnel oxide layer, the doped amorphous silicon layer having a dopant level which simultaneously avoids a select transistor word line high resistance problem and a charge gain / charge loss problem; forming an insulating layer on the doped amorphous silicon layer; forming a control gate layer on the insulating layer; and etching at least the doped amorphous silicon layer, the insulating layer, and the control gate layer to form at least one memory cell stack structure and at least one select transistor stack structure. In a preferred embodiment, the polysilicon layer which forms both the floating gate of the flash memory cell and the select gate of the select transistor of the device is doped with between approximately 5x1018 and 8x1019 ions / cm3 of phosphorus. With this dopant level, the contact resistance of the select transistor's control gate is low, thus keeping the word line resistivity of the device low. Simultaneously, contamination of the tunnel oxide of the flash memory cell by the dopant is limited, allowing for the interface between the floating gate and the tunnel oxide to be smooth, which prevents charge gain / loss problems. Thus, the reliability of the device is increased.

An element sealed body comprises a glass substrate, an element mounted on the glass substrate, and a protective glass for sealing the element, wherein a surface of the protective glass and a surface of the glass substrate, which are brought into contact with each other, have a surface roughness Ra of 2.0 nm or less respectively.

The invention discloses a rotation separation tool for drilling, comprising an outer cylinder, a ratchet assembly, a spring seat, an output shaft, and the like. Through conical sliding fit between the ratchet assembly and the spring seat, conversion between radial displacement and axial displacement and conversion between torque and spring compression force are realized. When the rotation torque exceeds a set separation torque, separate rotation is implemented inside to prevent damage of excessive torque to a rock breaking tool connected with the output shaft. When the rotation torque does not exceed the set separation torque, a torque can be output continuously to complete work.

The invention relates to the technical field of disposable sanitary products, in particular to a raw material rewinding mechanism. The raw material rewinding mechanism comprises a main rack; a mounting panel is fixed to the main rack; a winding device is rotationally connected to the mounting panel; the mounting panel is provided with a reciprocating motion swinging rod assembly which makes reciprocating motion in the direction perpendicular to the mounting panel; the reciprocating motion swinging rod assembly comprises a swinging arm and a material wheel assembly installed on the swinging armand used for guiding the materials to the winding device; and a guide wheel assembly is further arranged on the portion, above the reciprocating motion swinging rod assembly, of the mounting panel. The weight of the component making reciprocating motion is greatly reduced, and the cost is reduced.

A thermal switch includes a low abrasive and wear resistant disc seat for holding a bimetallic disc. The disc seat includes a disc body with a flange extending from a periphery of the disc body. A centralized through opening may be located in the disc body to prevent warping of the disc body during its manufacture. In addition, the disc seat may be made from brass where at least a first surface of the disc body is plated with Teflon Electroless Nickel, which may take the form of sub-micron particles of polytetrafluoroethylene with auto-catalytically applied nickel.

A paper for use as a slip sheet interleaver for the protection of glass surfaces in which the paper comprises a sheet with a basis weight of 15-60 lb / 3,000 ft2, has a bulk density less than 0.75 g / cm3, and has an average fiber coarseness greater than 0.18 mg / m. In comparison to conventional interleaver sheets, this paper is produced from a refined pulp having high coarseness.

An element sealed body comprises a glass substrate, an element mounted on the glass substrate, and a protective glass for sealing the element, wherein a surface of the protective glass and a surface of the glass substrate, which are brought into contact with each other, have a surface roughness Ra of 2.0 nm or less respectively.

The utility model belongs to the technical field of optical fiber production, and particularly relates to an anti-crush hold-down clamp which comprises a rod body, a first clamp is arranged below the rod body, a second clamp is arranged on the outer side of the first clamp, a pressing plate is arranged in the second clamp, a threaded block is fixedly connected to the outer wall of the bottom end of the rod body, a first threaded groove is formed in the outer wall of the first clamp, and a second threaded groove is formed in the outer wall of the second clamp. A second threaded groove is formed in one side wall of the clamp. According to the anti-crush hold-down device, the bottom edge of the pressing plate is provided with the chamfer, so that an acute angle is eliminated, an optical fiber cannot be cut off or scratched due to contact with the acute angle when the optical fiber is pressed, meanwhile, the chamfer enables a contact surface to be smoother, the optical fiber can pass through the contact surface more smoothly in the pressing process, friction and resistance are reduced, and the service life of the optical fiber is prolonged. Wherein all the components are in threaded connection, so that the assembly process becomes simple and rapid, meanwhile, disassembly is relatively convenient, when parts need to be maintained or replaced, threaded connection can be easily disassembled, and the maintainability and repairability of the hold-down clamp are improved.

The invention provides a semiconductor device and a manufacturing method thereof. The method includes: providing a semiconductor preparation body having a source region and a drain region; and sequentially stacking at least two gold half units on a bare surface of the source region and / or the drain region, each gold half unit including a semiconductor layer and a metal layer in sequence along a direction away from the semiconductor preparation body, wherein the material of each semiconductor layer is independently selected from GeSi, Si or Ge, and in the plurality of gold half units, the goldhalf unit having the smallest distance from the semiconductor preparation body is a first gold half unit, the first gold half unit including a first semiconductor layer and a first metal layer, a workfunction of metal of the first metal layer being smaller than work functions of other metal layers; performing heat treatment on the semiconductor preparation body which is provided with the plurality of gold half units, to make at least a part of the material of the semiconductor layer react with part of the material of the adjacent metal layer, to form at least three metal semiconductor compound layers. The semiconductor device produced by the manufacturing method has small electrical resistance.

The utility model discloses rice flour distributing equipment. According to the rice noodle distributing equipment, the double swinging hoppers are used, the two rice noodle receiving mechanisms which are symmetrically arranged left and right are arranged, and each rice noodle receiving mechanism is provided with the driving assembly for driving the multiple upper receiving hoppers to move forwards and backwards together, so that rice noodles are received through the cooperative action of the upper receiving hoppers on the two sides, waiting is not needed in actual production, and the production efficiency is improved. Efficient and continuous production is realized, and the production efficiency is greatly improved.

An arm external fixing brace (10), characterized by a thickness (H) of an edge of a mesh panel (12) thereof being greater than a thickness (B) of a central location. Selectively, raw materials of the mesh panel (12) being, according to weight: 60-78% PCL: 20-38% EVA; 2-20% inorganic filler; a thickness of an edge of a large ventilation hole of the mesh panel (12) being less than a thickness between the centers of two adjacent large ventilation holes: multiple fastening substrates (300) being pre-embedded at adjacent horizontal edge locations of the mesh panel (12); two wings of a fastening substrate (300) being provided with side holes (305), two sides of a middle part of a fastening substrate (300) being provided with grooves (302, 303) having symmetrical structures, the middle part of a fastening substrate (300) being provided with a middle hole (304), and a non-return surface (301) being provided at two sides of a circumference of the middle hole (304) inside the grooves (302, 303); two sides of a thumb hole (15) of the mesh panel (12) being tapered surfaces having symmetrical structures. The arm external fixing brace has few components, but simultaneously can prevent adhesion during a molding process so as to facilitate removal from a mold, make clinical operation convenient, and be comfortable to wear, metrics which were previously in conflict with one another.