38results 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.

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.

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.

The invention provides a method and a NAND type flash memory device. The method includes: forming a selection gate oxide layer in a selection transistor region of a base, and forming a tunnel oxide layer in a memory cell area of ​​the base; forming a selection gate oxide layer on the selection gate oxide layer and the tunnel oxide layer. An amorphous silicon layer doped with impurities, the dopant concentration of the doped amorphous silicon layer can simultaneously avoid the problem of high resistance of the selection transistor word line, and can also avoid the problem of charge gain/charge loss; On the doped amorphous silicon layer, an insulating layer is formed; on the insulating layer, a control gate layer is formed; and at least the doped amorphous silicon layer, the insulating layer, and the control gate layer are etched. , to form at least one memory cell stack structure and at least one selection transistor stack structure. In a preferred embodiment, the polysilicon layer will form the floating gate of the flash memory cell and the select gate of the select transistor of the device, and the dopant concentration of the dopant phosphorus in the polysilicon layer is between 5× Between 1018 and 8×1019 ions/(cm)3(ions/cm3). With this dopant concentration, the contact resistance of the control gate of the select transistor becomes low, and therefore, the word line resistivity of the device can be made low. At the same time, since the dopant enters the tunnel oxide layer of the flash memory cell, the pollution of the tunnel oxide layer will be limited, and the contact surface between the floating gate and the tunnel oxide layer will be smooth, thus preventing charge gain/loss The problem. Therefore, the reliability of the device will be improved.

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 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.