493results about How to "Reliable manufacturing" patented technology

An IV catheter introducer having a retractable needle holder and a tubular plunger that are held by a detent structure in a preferred positional relationship prior to and during insertion of the catheter. Following insertion, the plunger is pushed past the detent structure, permitting a compressed spring to force the needle holder upwardly into the plunger. A vented end cap in the plunger permits rapid venting of air displaced during retraction of the needle holder. The needle holder includes a flash chamber that is easily viewable through a clear plastic housing. Wings are provided on the housing to facililate one-handed operation of the device. A method for assembling the subject catheter introducer is also disclosed.

A process for the manufacture of a composite article is described wherein the process comprises the steps of (i) providing on a tool (22) a fibrous material (14) having associated therewith in at least one region thereof an in-situ polymerisable non-fibrous form of a thermoplastic material; (ii) applying heat and a vacuum to said material; and additionally (iii) drawing into the fibrous material, from a source external to the tool, additional thermoplastic pre-polymer material. The process described is particularly useful for the manufacture of a large composite structure such as thermoplastic composite wind turbine blade, for example.

A plurality of sensor packages (4) are fixed to a circuit assembly board (47) and placed on a lower mold die (56) of a transfer molding apparatus (54). Attached inside a cavity (58a) of an upper mold die (58) is a protection sheet (65), which will make contact with the upper face of a cover glass (6) of each sensor package (4). When the upper mold die (58) meshes with the lower mold die (56), the upper face of the cover glass (6) is tightly covered with the protection sheet (65). A plunger (62) is activated to fill the cavities (56a, 58a) with sealing resin (7). The upper face of the cover glass (6) is not stained or damaged when the peripheries of the sensor packages (4) are sealed.

A suppressor for a firearm includes a first gas expansion section of relatively large size sufficient to reduce the temperature and pressure of the gas expelled from a muzzle during discharge of the firearm to a level that avoids rapid degrading of structural members such as baffles in the suppressor that are downstream of the muzzle. The gas is channeled through multiple paths to distribute its energy more equally. Preferably, the suppressor is formed with a lightweight, thermally-conductive composite portion. The composite portion provides lightweight, bursting strength with good thermal conductivity and little contribution to vibrational instability of the muzzle to which it is attached. The composite portion may be of a carbon fiber, silicon, boron, or metallic base. In one embodiment, a first expansion chamber is in communication with the muzzle and with a second expansion chamber and in another embodiment, the first expansion chamber communicates with the muzzle and with the second expansion chamber The composite portions of the suppressor provide good bursting strength and heat conductivity with light weight. In some embodiments, a series of baffles creates turbulence in the gas, slowing its motion and distributing the energy more evenly over space.

An IV catheter introducer having an elastomeric grommet disposed between the housing and the IV catheter assembly that helps avoid unintentional separation of IV catheter assembly from the housing during shipping and handling prior to use, that acts as a needle guide, that helps align the housing and IV catheter assembly coaxially, that indicates that top side of the catheter introducer, that provides proper rotational alignment between the grommet and housing, that wipes blood off the needle during withdrawal of the needle from the catheter assembly and grommet, that impedes blood flow out of the catheter hub after needle withdrawal, and that assists the user in separating the housing from the IV catheter assembly following insertion of the catheter and withdrawal of the needle.

Accompanying the miniaturization of a gate electrode of a trench gate power MOSFET, the curvature of the bottom part of the trench increases, and thereby, electric fields concentrate on the part and deterioration of a gate oxide film (insulating film) occurs. The deterioration of the gate insulating film is more likely to occur when the gate side bias is negative in the case of an N-channel type power MOSFET and when the gate side bias is positive in the case of a P-channel type power MOSFET.

The present invention is a semiconductor device including an insulating gate power transistor etc. in a chip, wherein a gate protection element includes a bidirectional Zener diode and the bidirectional Zener diode has a plurality of P-type impurity regions (or a P-type impurity region) having different concentrations so that the withstand voltage with its gate side negatively biased and the withstand voltage with the gate side positively biased are different from each other.

A metering valve assembly comprising a ferrule and a valve housing defining an internal cavity. The valve housing accommodates an annular flange and a compression spring therein with a valve gasket closing the internal cavity. The valve housing is attached to the ferrule such that a stem portion of the valve stem protrudes through apertures provided in both the valve gasket and the ferrule. A stem portion has a discharge passageway which is normally closed by the valve gasket. Either an undersurface of the annular flange or a mating surface of the valve housing is provided with a compressible sealing member while the other is provided with an annular edge. The compressible sealing member and the annular edge form a seal therebetween, when the valve stem is sufficiently depressed, to partition the interior cavity into a metering chamber and a separate filling chamber whereby product may only be dispensed solely from the metering chamber when a product flow path is established.

A method for making an IC package preferably includes providing a mold including first and second mold portions, and wherein the first mold portion carries a mold protrusion defining an IC-contact surface with peripheral edges and a bleed-through retention channel positioned inwardly from the peripheral edges. The method also preferably includes closing the first and second mold portions around the IC and injecting encapsulating material into the mold to encapsulate the IC and make the IC package having an exposed portion of the IC adjacent the mold protrusion. Morever, the bleed-through retention channel retains any encapsulating material bleeding beneath the peripheral edges of the IC contact surface, and prevents the encapsulating material from reaching further onto the exposed portion of the IC. The method may also include releasing the IC package with the exposed portion from the mold.

The present invention is characterized in that gettering is performed such that impurity regions to which a noble gas element is added are formed in a semiconductor film and the metallic element included in the semiconductor film is segregated into the impurity regions by laser annealing. Also, a reflector is provided under a substrate on which a semiconductor film is formed. When laser light transmitted through the semiconductor film substrate is irradiated from the front side of the substrate, the laser beam is reflected by the reflector and thus the laser light can be irradiated to the semiconductor film from the read side thereof. Laser light can be also irradiated to low concentration impurity regions overlapped with a portion the gate electrode. Thus, an effective energy density in the semiconductor film is increased to thereby effect recovery of crystallinity and activation of the impurity element.

The invention discloses a method for preparing a superhydrophobic coating layer through composite of inorganic nano-particles with different average particle sizes, belongs to the field of novel materials, and in particular, belongs to the field of self cleaning materials. The inorganic nano-particles with different average particle sizes are composited to form a mixed dispersion liquid, then a silane coupling agent is added for hydrophobic modification of the composite nanoparticles in the mixed dispersion liquid under the action of a catalyst, and a composite nanoparticle dispersion liquid having a superhydrophobic property is obtained and acts on various soft or hard substrates through extraction, spraying, drop-coating, spin-coating and other methods to form the superhydrophobic coating layer; the superhydrophobic composite nanoparticle dispersion liquid is gradually diluted according to the proportion and then acts on a transparent material substrate, and the superhydrophobic coating layer having adjustable transparency can be obtained; the superhydrophobic coating layer has the contact angle greater than 160 degrees and the rolling angle of less than 5 degrees. The method is simple in process and is applicable to surface hydrophobic modification of various materials, and the transparency of the superhydrophobic coating layer can be adjusted according to different uses.

A faced fibrous insulation having a facing on one or more surfaces of a fibrous insulation material is provided. The facing provides improved surface quality, high and controlled adhesion, and is easily manufactured. The facing of the present invention includes a pre-applied adhesive that is heat activated to provide adhesion to the fibrous insulation. The facing may be input into the glass fiber forming section of a fibrous insulation production line. Alternatively, the facing may be applied to the uncured pack prior to curing or applied to the cured fibrous insulation. As another alternative, a vapor barrier layer may be attached on a surface of the insulation opposite the facing.

The invention is directed to a switch assembly which can be used in situation in which the switch accommodates the flow of high voltage current. An actuator assembly with moveable contacts is moved by a motor driven armature. The moveable contacts are in electrical engagement with the stationary contacts when the armature is in the first position, and the moveable contacts are spaced from the stationary contacts when the armature is in the second position. By angling the stationary contacts and moveable contacts, the linear motion of the armature causes the moveable contacts to move across the surface of the stationary contacts as the armature approaches the first position. As all of the movements of the assembly are in a direction parallel to the axis of the armature, the assembly can be manufactured and operated reliably in a relatively small space. In addition, the linear movement on the angled contact provides for a positive electrical connection even in adverse environments.

The invention discloses spring steel. Based on the total weigh of the spring steel, the spring steel comprises 0.56 to 0.64 weight percent of C, 1.6 to 2 weight percent of Si, 0.6 to 0.9 weight percent of Mn, 0 to 0.015 weight percent of Ti, 0.0055 to 0.03 weight percent of S, 0.01 to 0.02 weight percent of Als and the balance of Fe and inevitable impurities, wherein the weight ratio of the S to the Als is 0.55 to 3; and the Als is acid soluble aluminum. The invention also provides a preparation method of the spring steel, which comprises: subjecting the raw material of the spring steel to primarily smelting, refining, cold forming, rolling, quenching and tempering, wherein the composition of the raw material of the spring steel ensures the composition of the spring steel obtained is the same as the composition of the spring steel of the invention. The spring steel is high in fatigue resistance. The production method is simple and reduces cost.

The system comprises, for example, an electric shaver (1) and a cartridge (2) mounted in a chamber (12) of the shaver (1). The shaver (1) comprises a shaving head (3) having drivable cutters (31) and an electric motor (11) for driving the cutters (31) via a coupling pin (14). The cartridge (2) comprises a reservoir (25) for holding an auxiliary fluid. This auxiliary fluid may, for example, serve to reduce the friction between the shaving head (3) and the skin of a user. The cartridge (2) has an outlet channel (22) and a diaphragm pump (23) for feeding the auxiliary fluid from the reservoir (21) to the outlet channel (22). For the actuation of the diaphragm pump (23) the shaver (1) comprises a button (15) and a lever (17) which is pivotable about a pivot (18). When the button (15) is pressed the diaphragm pump (23) is actuated and a small amount of the auxiliary fluid is applied to the skin of a user via an outlet opening (32). The cartridge (2) has a key (50) which cooperates with a blocking device (60), which is adapted to block the lever (17) by means of pins. The key (50) has projections for positioning the pins of the blocking device (60). In the absence of the correct key the lever (17) is blocked and thus prevents the auxiliary fluid in the cartridge from being pumped to the outlet opening (32).

An electrode structure and a method for manufacturing an integrated circuit electrode includes forming a bottom electrode comprising a pipe-shaped member, filled with a conductive material such as n-doped silicon, and having a ring-shaped top surface. A disc-shaped insulating member is formed on the top of the pipe-shaped member by oxidizing the conductive fill. A layer of programmable resistance material, such as a phase change material, is deposited in contact with the top surface of the pipe-shaped member. A top electrode in contact with the layer of programmable resistance material.

In a method of manufacturing a wiring substrate according to the present invention, a metal foil is tentatively fixed onto a temporary substrate, which is made of a nonwoven fabric impregnated with resin, by selectively attaching a peripheral side of the metal foil to an outer peripheral portion of a wiring formation region of the temporary substrate, thereafter, a build-up wiring layer is formed on the metal foil, and the metal foil is separated from the temporary substrate by cutting out an inside portion of a structure, the portion being inward from the adhesive layer, in this way, a wiring member including the build-up wiring layer formed on the metal foil is obtained.

A cutter includes a male blade, a female blade, an advancement and retraction controller and a suction device. The male blade includes: a linear cutting portion linearly shaped with a predetermined thickness in a center part; a rounded cutting portion where a radius having a substantially arc shape in planar view is continuously formed from the linear cutting portion; and an end provided adjacent to the rounded cutting portion. The female blade has a fitting portion that is a hole conforming to the profile of the male blade in planar view and to which the male blade is fitted. On a lateral side of the female blade, an elongated hole for inserting a base film from one lateral side to the other lateral side is formed as an insertion portion.