Abstract: An areal metal element is described having a surface which extends from a first outside edge to a second outside edge lying opposite the first out-side edge. The region of the metal element adjoining the first outside edge forms a first edge region and the region of the metal element adjoining the second outside edge forms a second side region. Both side regions are connected to one another by a central region lying therebetween, with at least one completely bordered aperture being formed at least in one of the side regions, with its border being formed in one part by this side region and in another part by the central region. The central region includes at least two sections which each consist of two outwardly disposed part sections and a central part section lying therebetween. The outwardly disposed part sections are folded over with respect to the central section to produce the aperture.

Abstract: The invention relates to a method for producing electronic components consisting in carrying out a first anodization of a carrier material (1) for forming at least one first pore (3) extending in a first direction in said carrier material (1) and in carrying out a second anodization for forming at least one second pore (17) extending in the carrier material (1) in a second direction different from the first direction.

Abstract: Expanded metal machine includes a stationary knife and an adjustable knife which is adjustable in a vertical direction and a transverse direction. The adjustable knife includes a cutting edge with spaced-apart cutting projections in the transverse direction. A transport device for transporting a flat material in a direction of transport between the knives is provided. A cam is provided and configured for performing a periodic vertical motion. There is a transverse adjustment device configured for adjusting the transverse motion of the adjustable knife in a manner synchronized with the traveling motion. Likewise, there is an eccentric drive provided for the cam, and that is configured for guiding the cam in a circulatory motion which runs in a plane determined (e.g., bounded) by the vertical direction and the transverse direction.

Abstract: The present invention relates to a method for manufacturing a screen and welding apparatus thereof, putting a metal filter net around the outside of a support sheath and fixing the metal filter net to the outside of the support sheath by way of welding, such that the metal filter net completely covers all filter holes of the support sheath to form a filter sheath with; fixing the filter sheath to the outside of the base pipe and the filter sheath completely covering all penetrated holes on the base pipe; putting a jacket around the outside of the filter sheath and fixing it to the outside of the base pipe such that the jacket completely covers the outside surface of the filter area of the filter sheath.

Abstract: A pelleting die is made of martensitic stainless steel and includes a plurality of extrusion holes form through the die. The surfaces of the die, including surfaces inside the extrusion holes, are hardened by gas nitriding or plasma nitriding. A martensitic stainless steel die can have a carbon content of at least 0.4%. A martensitic steel die can be made of SAE grade 420 steel which is plasma nitrided to produce hardened surfaces. Plasma nitriding can be performed at sufficiently a low temperature to avoid softening of the 420 steel core.

Abstract: A well liner segment for use in hydrocarbon recovery processes. An elongate, typically cylindrical outer liner member, and an inner elongate liner member concentrically located therewithin is provided. Hydrocarbon upgrading catalyst is provided in the interstitial space between the two members. The outer liner members may be threadably coupled together. A slidable seal is provided between the outer liner and the inner liner to accommodated differential thermal growth between the two liners. A process for use of well liner segments having hydrocarbon upgrader catalyst pre-installed therein, is also provided, as is a method for manufacture of a well liner segment.

Abstract: A method for fabricating a filtering member in which overlapping portions of a wire are bonded together in a layered manner through thermal treatment for forming a mesh is disclosed. In accordance with the method, a contact surface pressure between portions of the wire to be bonded together is maintained as equal to or higher than a predetermined level set depending on a thermal treatment condition. In this state, the thermal treatment is conducted such that a bonding portion of the wire has a strength equal to or greater than 4N.

Abstract: A process for producing a structure in a smooth sheet-metal strip includes multiple process steps. In a first step, a first section of a smooth sheet-metal strip is fed to a first tool and a second section of the sheet-metal strip is fed to a second tool in a direction of advance. Then the sheet-metal strip is stopped. A sheet-metal machining of the first section of the sheet-metal strip is carried out using the first tool. A sheet-metal machining of the second section of the sheet-metal strip is carried out using the second tool, with the first feeding step being carried out simultaneously. An apparatus is provided for producing a sheet-metal strip of such a complex structure, which produces the structure with a very high degree of accuracy even when the materials properties differ.

Abstract: One exemplary embodiment can be a device for a gas-liquid contacting apparatus. The gas-liquid contacting apparatus can include a member. The member can include: a non-breakable portion, and a breakable portion adapted for removal by application of an effective amount of force for creating one or more holes for a passage of a fluid there-through.

Abstract: Disclosed herein is a downhole actuator. The actuator includes, a discontinuous tubular being configured to restrict longitudinal expansion while longitudinally contracting in response to radial expansion.

Abstract: A method of making a stent includes providing a tubular member having a first layer, the first layer and the tubular member having different compositions, removing a portion of the tubular member, and removing a portion of the first layer from the tubular member.

Abstract: A light transmitting conductive film formed by patterning a conductive metal part and a visible light transmitting part on a transparent support, wherein the conductive metal part is made up of mesh-forming thin lines of from 1 ?m to 40 ?m size and the mesh pattern continues for 3 m or longer. A method of producing a display filter wherein the end sections of at least two sides facing each other are in a mesh shape, which comprises using an electromagnetic wave shielding material (C), wherein a conductive layer (B) having the conductive parts being in the mesh shape of the geometric pattern is formed on one face of a polymer film (A) continuously in the machine direction of the polymer film (A), and cutting the mesh-like parts.

Abstract: Methods of manufacturing a noise attenuator are provided. In an embodiment, by way of example only, the method includes shaping a plate to have a three-dimensional contour, and forming a plurality of openings through the shaped plate with an abrasive fluid jet to thereby form the bleed valve noise attenuator. In another embodiment, a bleed valve assembly is provided. By way of example only, the assembly includes a plate having a three-dimensional contour including a rim section surrounding a dome section and a plurality of openings formed in at least one of the rim section and the dome section, the plate comprising a material having no recast material thereon.

Abstract: A perforated sheet obtained by forming holes in regular order in a metal sheet, the perforated sheet having holes arranged so that in a case of drawing a first tangential line extending in the tensile direction and passing through the bottom edge of a (1-1) hole, a second tangential line passing through the top edge of a (2-1) hole, a third tangential line passing through the bottom edge of the (2-1) hole, and a fourth tangential line passing through the top edge of a (1-2) hole, the second tangential line passes between the first tangential line and the fourth tangential line, and the third tangential line passes between the first tangential line and the fourth tangential line.

Abstract: A close-tolerance expandable bow spring centralizer 8 having a first expandable collar 10A coupled to and spaced apart from a second expandable collar 10B through a plurality of bow springs 30 wherein expandable collars 10A, 10B comprise a plurality of slidably coupled links 16 that separate to expand the diameter of the collars 10A, 10B, e.g., upon expansion of an expandable pipe string 80 on which the centralizer 8 is received. Expandable bow spring centralizer 8 may grip the expandable pipe string 80 when in the collapsed configuration to eliminate the need for a stop collar. Additionally or alternatively, a fin 32 may be connected to each bow spring 30, and then connected to one or more adjacent fins 32 upon collapse of the bow springs 30 to form a restraining band 39 that may be ruptured, e.g., upon expansion of the expandable pipe string 80.

Abstract: A metal screen material (32) having a flat side, in particular electroformed screen material, preferably seamless cylindrical screen material, comprises a network of dikes (34) which are connected to one another by intersections (36), which dikes (34) delimit openings (30). The height of the crossing points (36) is not equal to the height of the dikes (34). The metal screen material (32) or a combination thereof with a perforating screen (17) can he used as a perforating stencil for the perforation of film material (2), for example made from plastic material.

Abstract: A micro-denier fiber of less than approximately 2.0 microns is coated in a valve metal to a metal thickness of approximately 0.2 to 2.0 microns. In one embodiment, a long filament of coated fiber is wound on a spool in such a way that the maximum arrangement of fiber density is achieved For example, the spool may have a cross section exhibiting a hexagonal close-packed arrangement of the fibers. In another embodiment, a plurality of fibers may be grown or formed into a particular arrangement prior to coating. Once coated and arranged, the fiber mass is compressed and constrained so that shapes can be cut out in various thicknesses, such as, for example, approximately 50 microns to 5000 microns. Each sheet is sintered to bind the metal and remove the fiber, leaving a porous anode that can be oxidized and formed in the usual manner for a capacitor.

Abstract: The present invention refers to a method to provide slots in pipes and, more specifically, to a method to provide slots in metal pipes used to extract oil or to form slotted lines, wherein said slots are specially designed to avoid the intake of impurities while pumping oil.

Abstract: A method of manufacturing an injector plate is provided where a wafer is provided and a release layer is disposed on the wafer. Then a photo resist is formed over the release layer. After photolithography processing, a plurality of plugs are formed from the photo resist. A titanium layer is sputtered on the release layer and on the plurality of plugs. The plugs are removed so that the titanium layer has a plurality of openings. An injector plate fabricated from this method has the characteristics of biocompatibility with a plurality of fine-pitch openings with uniform diameters.

Abstract: A male die is adapted to be opposed to a first face of a metallic plate member. The male die includes a plurality of punches which are provided on the male die and arranged side by side in a first direction with a fixed pitch. A guide member is formed with a guide face which supports a side portion of the male die, at least when the punches are pressed into the plate member in a second direction, to form through holes therein.

Abstract: A method of forming a perforate membrane (1) is disclosed for use in a liquid transport device. The membrane has at least plural nozzles (10) formed therethrough. Each of those nozzles has a throat portion (12) opening at opposite end through opposite surface (2?) of the perforate membrane and a smoothly curved outwardly diverging portion (11) extending from the first end of the throat portion to the first surface (2) of the perforate membrane. Laser energy is applied selectively to the first surface (2) of the membrane in the form of a pulsed, focused beam to form the nozzles (10) and thereafter the first surface (2) of the membrane and the surface of the diverging portion (11) of the nozzles (10) are electro-polished to remove surface imperfections. The electro-polishing is controlled so as to remove material from the surface of the diverging portion (11) of the nozzles to a depth less than the length of the throat portion (12).

Abstract: A method of manufacturing an expandable slotted tube fabricated from at least one tubular element and at least two annular elements connected to the opposite ends of the tubular element by means of butt joints wherein axially extending slots are formed at a uniform angular spacing around the periphery of the tube and in longitudinally overlapping relation characterized by cutting said annular elements in a pattern of overlapping positionally fixed slots in accordance with invariable parameters which are pre-determined relative to the dimensions of said annular elements and cutting in said tubular element a pattern of slots that is variable in accordance with measured parameters of the tube so as to achieve the required overlap between said positionally fixed and variable slots. A machine for carrying out the method is also described.

Abstract: A method for producing a tubular spring (12) in the form of a cylindrical hollow body, especially for pre-tensioning a piezoelectric actuator element (2) of an actuator unit (1) of a fuel injector comprises the step of providing a thin-walled, solid-drawn steel tube with a plurality of regularly arranged longish recesses (14) by means of laser cutting. Thus, an actuator unit (1) comprises a piezoelectric actuator element (2) which is arranged in a thin-walled cylindrical hollow body, wherein the hollow body being elastically embodied and pre-tensioning the actuator element (2). Furthermore, the hollow body is a solid-drawn steel tube which is provided with a plurality of longish recesses (14).

Abstract: An asymmetrical tool is provided to form an asymmetric orifice for an orifice disc. The asymmetric orifice is initially formed with a wall portion extending generally perpendicular to first and second generally parallel surfaces of the orifice disc. The wall of the orifice is deformed by the tool into an inlet portion contiguous to the first surface and a transition portion spaced from the first surface. The transition portion of the wall extends substantially perpendicular to the first and second generally planar surfaces. The inlet portion of the wall extends at a first oblique angle with respect to the first surface, and the first oblique angle varying with respect to the longitudinal axis. A method of forming the orifice with the tool is described.

Abstract: A method for reducing the width of slots spaced about the surface of a pipe or tube. The method comprises subjecting the surface of the pipe or tube to bombardment by a quantity of shot of a pre-determined size and for a pre-determined length of time to cause deformation of the surface of the pipe or tube adjacent to the slots therein so that the width of the slots is reduced to within a pre-determined size range.

Abstract: A device for cutting slits in plastic tubes produces a plurality of cuts spaced around tubing passed through the device. The device comprises a plurality of rotatable members (3) located at different circumferential positions around a tube passage (2) through the device. Each rotatable member is provided with a tube cutter (25) which is directed at and away from the tube passage (2) with rotation of each member (3). These rotatable members (3) are adjustable radially of the tube passage (2) for accommodating diametric variances in the tubing.

Abstract: A spring centralizer device for supporting a tubular member spaced from the wall of a bore is made from a single piece of boron steel material. The spring centralizer device has first and second collars spaced apart along a longitudinal axis. Spring bow portions extend between the collars. As the device is made from a single piece of material, the material extends seamlessly from each collar portion through the bow portions so that there are no joins or points of weakness. Use of boron steel means that the device can be made by cold forming.

Abstract: A retaining assembly secures ornamentation having an inboard surface and a plurality of protrusions to a wheel. The retaining assembly includes a ring. The ring includes a plurality of openings extending therethrough. The openings receive protrusions that extend out from the ornamentation. Legs extend out from the ring and engage multiple sides of a portion of the lug nuts. This secures the ornamentation to the wheel hub. The retaining assembly also includes supports that are secured between the legs. The supports provide support and prevent over-travel of the legs when the ornamentation is being installed by securing the ring to the lug nuts. The supports include an extension and a cross member. The extension positions the supports with respect to the ring and the cross members are bent and welded to the legs that are disposed adjacent thereto to provide support and prevent the over-travel of the legs as the legs pass over the lug nuts to which they are being secured.

Abstract: A mass transfer column is provided with an external shell defining an internal region. Packing elements are positioned within the internal region of the mass transfer column. The packing elements have one or more plates formed from sheet material that has been shaped to form a plurality of corrugations on each side of the plate as a series of peaks separated by valleys. A plurality of apertures are arranged across at least a portion of the plate and a plurality of tangs extend outwardly from the surface of the plate surrounding at least some of the apertures. At least some of the outwardly extending tangs are deformed toward the plate.

Abstract: A method of making a stent includes providing a tubular member having a first layer, the first layer and the tubular member having different compositions, removing a portion of the tubular member, and removing a portion of the first layer from the tubular member.

Abstract: A method for forming elastic ventilation cushion comprises the steps of arranging a plurality of needle seats at two banks, an upper bank and a lower bank, and a straight gap is formed between the upper bank and the lower bank, wherein one edge of each needle seat near the other bank is mounted with a plurality of slender needles, wherein each distal end of the needles is folded as a distal folded section; passing an elastic cushion through the gap; and moving the needle seats at the upper and lower banks so that the length of the gap is enlarged or reduced, thereby, the needles on the needle seats will pierce the elastic cushion and the distal folded section will tear surfaces of the elastic cushion to form a plurality of elastic ventilation slits on the elastic cushion. Moreover, the needle seats can be replaced by needle rollers.

Abstract: There is provided ceramic honeycomb body including a plurality of parallel cells defined by intersecting internal walls, and arranged in horizontal and vertical rows at and between opposing ends of the honeycomb body, an outer peripheral wall surrounding the cells, and further being interconnected to the internal walls, wherein the cells are divided into a first region including a portion of the cells adjacent the outer peripheral wall, and a second region including the remaining cells, wherein the cells in the first region have a wall thickness that is continuously increased along an axis extending to the outer peripheral wall, and, wherein fillets are formed at least at intersections between the interior walls in the first region of cells.

Abstract: Several methods of forming angled orifices in a metal sheet are described in which an angled orifice can be formed from a preformed right-angled orifice. Each angled orifice has an oblique axis relative to at least one of a first surface and a second surface of a metal sheet. One of the methods can be achieved by punching the metal sheet in a first direction along a first axis perpendicular to one of the first and second surfaces of the metal sheet with a first tool piece so as to form a first orifice, the first orifice defining an opening having wall surfaces parallel to the first axis; and punching the metal sheet with the first tool piece proximate the first orifice in the first direction along a second axis parallel and offset to the first axis so as to form a first wall surface of the first orifice extending between the first and second surfaces of the metal sheet oblique to the first axis.

Abstract: A method of providing with precision a number of long and narrow through holes (11) in a body (1) made of a high-density material. The body (1) is made in the form of a number of partial bodies (2, 2′, 2″), which are arranged close to each other and from the body (1). Each partial body (2, 2′, 2″) is defined by an outer surface (5), which is part of the outer surface of the entire body (1), an inner surface (6), which is part of the inner surface of the entire body (1), as well as a pair of boundary surfaces (7, 8), which extend from the outer surface (5) to the inner surface (6). Holes (11) are produced by machining at least one of the bounding surfaces (7, 8) adjacent partial bodies (2′, 2″). Each hole (11) extends from the outer surface (5) to the inner surface (6) along said at least one boundary surface (7, 8). The thus machined partial bodies (2, 2′, 2″) are fixedly attached to each other.

Abstract: A screen media (200) for use in screening pulp slurry has a first side (204) and a second side (206). The pulp slurry is fed from the first side of the screen media to the second side of said screen media through a plurality of screening passages (205). Each said screening passage include a contour cut (210) formed in the first side, a back groove (208) formed in the second side, and a residual thickness (234) between the contour cut and the back groove. An elongate slot (235) is formed in the residual material, and the residual thickness has a substantially uniform thickness about the elongate slot. Where the slot extends completely through the residual material it defines a through-slit (236) through which slurry flows and is filtered.

Abstract: A test panel and process of preparing a test panel for evaluating the performance of inspection penetrants by inducing cracks into a brittle coating. The process includes drilling one or more holes from the back side of a test plate which has been plated on a plated side. The holes are drilled partway through the test plate and create cavities. A penetrating tool which has a point is inserted into a cavity and the point is pressed in a slow measured manner from the back side of the panel which has a brittle plated coating on the front side to be cracked. The result is a series of cracks formed in an area opposite the area of the cavity.

Abstract: The present invention is directed to a container comprising a first piece of mesh material and at least one separate second piece of mesh material. The first piece of mesh is bent to form a bottom wall and a first pair of sidewalls. The second piece of material forms a second pair of sidewalls. When the pieces are joined together, a basket portion with an upwardly-extending opening is formed. The basket portion may further include a runner portion that may be a separate rail connected to the basket portion, thus forming a drawer. When the container is used with a drawer system including a frame, the runner portion is slidably received in a pair of frame runners. This allows the drawer to move with respect to the frame between retracted and extended positions. The present invention is also directed to a method for making such containers.

Abstract: A single step method and apparatus for the production of expanded metal mesh from deformable metal strip such as lead or lead-alloy strip for use in lead-acid battery manufacture. The apparatus comprises a pair of opposed rolls each having a plurality of spaced discs having opposite side walls and circumferential, equally spaced, convexly shaped tool surfaces alternating with substantially flat surfaces, said discs having radial notches formed in the opposite sidewalls of alternate circumferential flat surfaces, whereby peripheral surfaces of opposing rolls are adapted to interact on deformable strip passing therebetween to concurrently slit and form convex wire segments and alternate nodes in said strip by intermeshing of said shaped tool surfaces.

Abstract: An underdrain filtration system has improved perforation structure, the perforations being positioned to admit the filtrate into a plenum defined by elongated underdrain rib structures of the system. Instead of drilled or laser-cut holes or slits, the slits are formed by stamping discs from the stainless steel plate, such that the discs extend parallel to the surrounding flat area but are raised just sufficiently to define a plurality of slits under each disc, preferably two to four slits, each being an arc of slightly less than 180°, 120° or 90°, respectively. A pair of metal bridges remain to integrally connect the raised disc and the surrounding flat field. Consistent perforation width is achieved, at, for example, 0.010″ width varying by less than 0.001″ in either direction, improving consistency of pressure drop.

Abstract: The method of manufacturing a mechanical basket (P) of substantially cylindrical shape for centripetal or centrifugal flow relative to an axis (R) and comprising rings (A) lying in planes perpendicular to the axis of revolution and wires (F) rigidly connected to the rings at regular intervals for the purpose of sieving a material is characterized in that assembling a wire (F) to a ring (A) comprises a first operation of putting said wire (F) into position in a corresponding notch (EN) in the ring, and a second operation in which the wire is welded to the ring by melting a shoulder (EP1) of the ring, without adding any filler metal. In the method, a mechanical basket is made that presents better mechanical characteristics so that its lifetime is increased, and its cost of manufacture is reduced compared with conventional mechanical baskets.

Abstract: The present invention is directed to a stainless steel stent which is substantially nickel-free and possesses improved elongation and mechanical properties, including resistance to corrosion. The stent can be embodied in a substrate with one or more metallic claddings overlaying the substrate. The substrate and claddings can include radiopaque materials and stainless steel.

Abstract: The invention relates to a method of producing a sound-absorbent insulating element with at least two metallic leaves or sheets (2, 3) in the form of films or sheets. According to said method, at least one of said elements is provided with knobs in such a manner that the limit of elasticity of the respective sheet (2, 3) is exceeded during the knobbing process, resulting in the formation of fissures (4, 11). Said fissures substantially help to improve the acoustic absorption capacity of the insulating element produced according to the inventive method.

Abstract: A honeycomb cell structure has a plurality of first strips each formed into a generally zig-zag configuration and placed side by side to form a plurality of rows of cells in a generally honeycomb configuration with nodes between adjacent cells in each row, and a plurality of second strips of brazing foil. Each second strip is positioned between a respective pair of adjacent first strips and the first and second strips are secured together at each node such that a brazing foil strip extends across each cell in each row of the honeycomb. The second strips have a series of spaced slits extending transversely from at least one side edge across at least a distance equal to greater than half of the width of the second strip, with at least some of the slits being located within the cells.

Abstract: A method of manufacturing an orifice member used in a nozzle for ink-jet printing includes a first step of applying an adhesive onto one surface of a synthetic resin member; a second step of forming at least one through-opening in a metallic member such that the through-opening extends in a direction perpendicular to the direction of penetration of the through-opening; a third step of bonding together the metallic member having the through-opening and the synthetic resin member via the adhesive; and after the bonding step, a fourth step of forming a plurality of through-holes having substantially the same diameter in a portion of the synthetic resin member corresponding to the through-opening of the metallic member such that the through-holes are aligned at a substantially constant pitch along the through-opening of the metallic member and such that the through-holes do not deviate from an area corresponding to the through-opening.

Abstract: A dome shaped filtering device for removal of contaminants from extrudate, consisting of a coarse mesh support screen, an intermediate mesh support screen and a fine mesh filter screen. All screens are stainless steel woven wire. A method and apparatus(s) for producing the screens is also included.

Abstract: Semi-spherical supports are used in the piercing of small, consistently sized holes in a soft metal. In particular, a flow control device, such as an orifice plate, can be fabricated with small, consistently sized flow apertures to regulate flow in a gas flow regulating device. By using semi-spherical supports, the need for hand-punching and real-time flow calibration can be avoided and automated machinery with a tapered piercing tool can be used to fabricate the flow control device.

Abstract: The method comprises the steps of: moving a strip through an expansion machine having at least one expansion punching tool and an associated complementary tool or matrix, causing the expansion machine to operate in synchronism with the movement of the strip so as to form a grid strip having an non-expanded central portion and two longitudinal grid portions adjacent the central portion, and forming, in the non-expanded central band, a plurality of openings or windows separated by transverse bridges which are to form the connection appendages or lugs of the plates. These openings or windows are formed, in the expansion machine, by punches operated in phase with the operation of the expansion punching tool.

Abstract: A substrate for a microelectronic package comprising a substrate that has grooves on a surface for bonding. A method for preparing a substrate for bonding comprising forming a grooved surface in the substrate for accepting a die for bonding, wherein the grooves are of sufficient size to provide a substantially uniform die bond, but no so large as to nullify the thermal path to the underlying substrate.

Abstract: A method and apparatus for fastening anchoring devices having a screw aperture therethrough to a portions of panels devoid of openings including fastening the anchoring device to a one side of the panel, and forming an anchoring device locating indicium on another side of the panel opposite the anchoring device and in alignment with the aperture thereof without forming an opening through the panel.

Abstract: A method of manufacturing an orifice plate for a fluid ejection device comprises defining a plurality of orifice apertures in a substantially planar plate; and defining a plurality of closed slits in the plate.