Abstract: A method for producing an identification device, including: obtaining a holder, substantially shaped as a curved stratum having a C-shaped cross-section, the holder having an external surface and an internal surface, the stratum having at least one opening thereon; micro-etching the internal surface of the holder; fixing an identification tag within the holder by a hardening material; and wherein fixing the identification tag within the holder includes the following steps in the order as listed: placing the holder within a container on a curved rim of the holder; filling the holder to about half the height with a hardening material; placing the identification tag within the holder; filling the holder to its height with the hardening material; and hardening the hardening material.

Abstract: A threaded joint for pipes includes a pin member and a box member, the pin member having an external thread configured to correspond to an internal thread of the box member, a thread form of the internal and external threads having generally dovetail-shaped profile with stab flanks and load flanks and flat roots and crests, wherein the internal threads are increasing in width in one direction on the box and the external threads are increasing in width in the other direction on the pin, so the roots, crests, and flanks of the threads move together and form seals that resist the flow of fluids between the seals.

Abstract: An optical electrode having a plurality of electrodes, including a recording electrode having a roughened surface and an optical light source configured to emit light, wherein at least a portion of the light impinges on the recording electrode. Also disclosed are methods of producing an optical electrode and an opto-electronic neural interface system.

Abstract: A method for attaching a metal surface to a carrier is provided, the method including: depositing a porous layer over at least one of a metal surface and a side of a carrier; and attaching the at least one of a metal surface and a side of a carrier to the porous layer by bringing a material into pores of the porous layer, resulting in the material forming an interconnection between the metal surface and the carrier.

Abstract: A root canal instrument includes a twisted strip having a titanium-nickel alloy or a plastics material. The strip has a cross-section having three exterior surfaces or four exterior surfaces. A coating is disposed on at least one exterior surface, the coating includes abrasive particles. A method of making the root canal instrument includes making a basic plate having a thickness of less than one millimeter, coating the basic plate with a coating having the abrasive particles; dividing the basic plate into longitudinally extended strips, twisting the strip to form a root canal drill bit having a cutting edge with abrasive particles disposed on the cutting edge.

Abstract: A method for manufacturing a joint. A ball is mounted on a pin. Spherical surfaces on at least two socket parts are machined. Grinding paste is applied on the ball and/or on the surfaces of the socket parts. The pin is connected to an equipment that rotates the ball. The ball is assembled between the socket parts. A pressure is applied between the socket parts and the ball. The ball is rotated and tilted over the working range of the joint. The ball and the socket parts are cleaned from the grinding paste. The joint is assembled by mounting the socket parts on a ball. A robot obtainable with the method.

Abstract: A nail file and a method of manufacturing the same includes a reinforcing core member made of paper, and polishing elements provided at both surfaces of the reinforcing core member with the reinforcing core member interposed therebetween and used to polish a nail surface. In the nail file and the method of manufacturing the same, the reinforcing core member is made of rigid and elastic paper, providing the nail file with higher elasticity and flexibility than conventional synthetic resin products, whereby the nail file can easily accomplish nail finishing and polishing, and can reduce environmental contamination by minimizing generation of toxins upon landfill or incineration after disposal.

Abstract: The disclosure relates to surface roughening methods in which a cutting tool having a radial cutting blade with first and second cutting edges is fed along a longitudinal axis of an article while rotating the cutting tool about the axis. The first cutting edge forms a first machined pattern of peaks and valleys on a surface of the article, and the second cutting edge removes at least a portion of the peaks to form roughened fracture surfaces in a second machined pattern defining an arrangement of grooves, corresponding to the valleys, separated by lands, corresponding to the roughened fracture surfaces. The cross section of the grooves is substantially asymmetrical, and each groove may further include a notch. The disclosure also provides cutting tools useful in practicing the surface roughening methods. The disclosure further describes cylindrical articles having interior or exterior surfaces roughened using the methods.

Abstract: A submersible robotic pool cleaner is provided with an integral sealed rechargeable battery and an inductive charging assembly, a first portion of which is mounted in the pool cleaner housing and during the charging, receives a second separate portion that is connected by a cable to a conventional power source. The pump motor drive shaft is treated with a specialized anti-friction lubricant composition to minimize frictional energy losses where the shaft contacts the seal(s) and any shaft bearing(s), to maximize efficiency and minimize the power consumption of the pump motor assembly and permit the pool cleaner to completely traverse the surfaces to be cleaned within the fully-charged power capacity of the battery.

Abstract: The present invention is a specialized orthopedic implant having an exterior surface for engaging bone. The surface comprises arrayed projections having at least one forward facing facet directed at least in part toward the leading end of the implant and at least one rearward portion directed at least in part toward the opposite trailing end of the implant. Each of the forward facet and rearward portion has a length and a slope. The length of the forward facet is longer than the length of the rearward facet. The slope of the rearward facet is steeper than the slope of the forward facet. The surface projections also have opposed side facets directed generally toward the sides of the implant. The side facets are located between the forward facet and rearward facet and converge toward each other in a direction away from the base of the surface projections. The surface may also include projections having left and right forward side facets and a rearward facet.

Abstract: The present invention relates to a method for producing a part (108, 200, 300), comprising the following steps: a) applying a first flat layer consisting of a support material (102, 202, 302), to a construction platform (101, 201, 301), b) introducing at least one recess (103, 203, 303) into the support material (102, 202, 302), c) filling the recess (103, 203, 303) with a construction material (104, 204, 304), d) applying a further layer of support material (102, 202, 302), e) repeating steps b) through d) until completion of the part (108, 200, 300), and f) removing the support material (102, 202, 302). This method is to provide a manufacturing method and a device that combine the advantages of the layerwise construction (rapid prototyping) with the advantages of machining (e.g. high-speed cutting) and particularly permit the production of sharp-edged contours. Furthermore, the present invention relates to a device for carrying out the method.

Abstract: Provided is a method of forming ferromagnetic sputter targets and sputter target assemblies having a uniform distribution of magnetic leakage flux. The method includes providing a ferromagnetic sputter workpiece and hot rolling the workpiece to a substantially circular configuration sputter target; machining a taper in a surface of the sputter target to have a thickness gradient of the sputter target, where the center of the sputter target is about 0.020 to about 0.005 inches thinner than the edge of the sputter target, and where the magnetic leakage flux across the sputter target is uniformly distributed.

Abstract: The invention encompasses a method of treating a physical vapor deposition target. The target has a sputtering surface and a sidewall edge at a periphery of the sputtering surface. The method comprises pressing a tool against the sidewall edge to form a distribution of imprints in the sidewall edge of the target. The tool is then removed from the sidewall edge, leaving the imprints extending into the sidewall edge. The invention also encompasses a physical vapor deposition target. The target includes a sputtering surface having an outer periphery, and a sidewall edge along the outer periphery of the sputtering surface. The sidewall edge has a repeating pattern of imprints extending therein.

Abstract: A golf club head has a metal base, face and tubular neck and a carbon-fiber cover. The face extends up vertically from one edge of the base. The tubular neck is integrally connected to the base and the face. The cover is made of a carbon-fiber material and is securely attached to the base and the face. Because the carbon-fiber material is lighter than metal, the area of the face is enlarged. In addition, the shock absorbing effect of the golf head club is also improved.

Abstract: The invention is a plate for holding a friction material in a brake assembly. The plate preferably comprises a contact surface for attaching the friction material to the plate, a second surface opposing the contact surface; and a plurality of retaining structures formed on the contact surface, each retaining structure comprising a projecting member extending from a point between the contact surface and the second surface, so that the member extends outwardly from the contact surface for engagement with the friction material.

Abstract: A method of making grating wherein grating bars are provided with an anti-slip coating. The grating bars are placed side by side with their top edges aligned and with the sides of adjacent bars in contact with each other. The grating bars are held stationary relative to each other. Molten metal is sprayed on to the top edges to form a rough surface on the top edges. The grating bars are subsequently separated and assembled together in a spaced relationship by attaching transversely extending members to the grating bars.

Abstract: In a fuel injection valve, an adjustment pipe made of stainless steel and for adjusting a compression amount of a spring biasing a valve member is press-fitted into a cylindrical housing made of stainless steel, and a fuel injection amount is adjusted by adjusting a spring force of the spring in accordance with a press-fitted amount of the adjustment pipe. The adjustment pipe is immersed in an oxalic acid solution so that an oxalate film is formed thereon before being press-fitted into the cylindrical housing. Therefore, the oxalate film prevents a direct press-contact between an outer peripheral surface of the adjustment pipe and an inner peripheral surface of the cylindrical housing.

Abstract: A method of making grating wherein grating bars are provided with an anti-slip coating. The grating bars are placed side by side with their top edges aligned and with the sides of adjacent bars in contact with each other. The grating bars are held stationary relative to each other. Molten metal is sprayed on to the top edges to form a rough surface on the top edges. The grating bars are subsequently separated and assembled together in a spaced relationship by attaching transversely extending members to the grating bars.

Abstract: A wafer processing apparatus (14) has a wafer processing vessel (16). A wafer is mounted on a susceptor (22) included in the wafer processing apparatus. Process gases are supplied to the wafer through a shower head (74) disposed in an upper region within the processing vessel to carry out a predetermined process for processing the wafer. The surfaces of aluminum members (16, 74) employed in the wafer processing apparatus are subjected to an organic mechanical chemical polishing process, a blasting process and an aluminum oxide film forming process in that order. It is difficult for unnecessary films to adhere to the thus treated surfaces and it is difficult for unnecessary films deposited on the thus treated surfaces to come off the surfaces. Consequently, intervals between cleaning operations can be extended and production of particles can be suppressed.

Abstract: Nail files are made in a manner which permits ease of dispensing. A tube is continuously fed into a milling machine where grooves are formed in predetermined segments of the tube. These grooves are roughened by adhesively applying abrasive particles or by milling the groove surfaces. The tubes are stamped so as to form alternating long grooved areas and short smooth areas. The thus-prepared tubes are divided into sections of desired lengths containing a plurality of nail files which may be easily detached from the remainder of the files in the section. Another method comprises providing a solid or hollow rod which has any of a variety of geometric cross-sections, providing the rod with grooves having varying sizes, roughening the surfaces of the grooves as above, and weakening the rods at predetermined lengths to produce sections containing a series of easily detached segments. The hollow files may be fitted with closures at each end. At least one of these closures is removable and replaceable.

Abstract: A modular antislip flooring product for use on walking and working surfaces. A metallic plate including regions from which material is removed to reduce the rigidity of the flooring product. Reinforcements are secured about the perimeter of the metallic plate. An antislip coating is sprayed on the top surface of the plate to provide a hard rough surface. A method of making the antislip flooring product is also disclosed.

Abstract: A full metal jacket hollow point bullet is disclosed which has a portion of the jacket extending within the hollow open front end of the bullet. The portion of the jacket in the hollow front end has a plurality of radial slits and reinforced pointed prongs therebetween. A rearwardly extending completely empty blind bore extends from the tips of the prongs axially rearwardly into the bullet core. The base of each of the prongs is reinforced at the mouth of the front end by a fillet on each side between the ogive portion of the jacket and the base of the prong in the hollow front end. These prongs project generally radially outward upon upset of the bullet in soft tissue after passing through barrier materials such as clothing and deer hide.The jacket has a coating of copper oxide on its inner and outer surfaces which bonds the soft lead core to the jacket and minimizes lead wash.

Abstract: The invention teaches a method of manufacturing a torsional vibration damper in which a metal hub ring and a metal inertia ring surrounding the hub ring are radially spaced apart by a gap. A spring body of rubber-elastic material is fired into the gap with the aid of a lubricant, the spring body and/or the surfaces of hub and/or inertia ring facing the gap being wetted with a lubricant composed of a water-salt solution prior to insertion of the spring body.

Abstract: An underground storage tank assembly and method for fabricating the same are disclosed. A steel primary fluid storage tank is provided having an outer, peripheral surface. A secondary fluid storage container being formed of curable plastic material and having a substantially smooth inner surface is tightly secured about the outer, peripheral surface of the primary fluid storage tank. The interstitial spaces formed between the outer surface of the primary container and the inner surface of the secondary container permit the desired migration of fluid therethrough to allow the detection of any fluid leaking through the primary tank or secondary tank. Various methods for forming the secondary fluid storage container are disclosed. The outer surface of the primary tank and/or the inner surface of the secondary fluid storage container may be textured for applications requiring enhanced fluid migration.

Abstract: A method is provided for manufacturing surgical sutures that have an elastomeric and porous structure. The elastomeric and porous structure is formed from a mixture including a polymer material and an elutable solvent therefor, which mixture is extruded into an aqueous liquid and pulled therethrough.

Abstract: A method of joining together two or more pieces of malleable material. The method includes the steps of placing thoroughly cleaned surfaces of the pieces in intimate contact with each other and forming a flanged hole through all of them at the same time. This is accomplished by producing a starting hole and then directing a draw punch against the pieces and directing the same into the opening of a die while the material is compressively stressed to a value substantially equal to the yield strength of the material. The punch provides the completed flanges with an hourglass shape, such shape locking the inner and outer flanges together against axial displacement.

Abstract: A method of joining together two or more pieces of malleable material. The method includes the steps of placing thoroughly cleaned surfaces of the pieces in intimate contact with each other and forming a flanged hole through all of them at the same time. This is accomplished by directing a draw punch against the pieces and directing the same into the opening of a die while the material is compressively stressed to a value substantially equal to the yield strength of the material. The punch provides the completed flanges with an hourglass shape, such shape locking the inner and outer flanges together against axial displacement.

Abstract: A method of bonding a metallic object to another object includes scatter coating an aluminum containing metal on the surface of the metallic object, after cleaning the surface, and bonding the metallic object to the other object with an adhesive. Where both objects are metallic, the surfaces to be bonded are each scatter coated with aluminum. The scatter coating can be formed by friction coating aluminum containing metal onto each metal surface to be bonded.

Abstract: A process for producing cooper foil laminated plates using rolled copper foils made of oxygen-free copper is described. The major feature of the present process is that in laminating a rolled copper foil on an insulating substrate, the rolled copper foil is ground or abraded and immediately brought into contact with water or steam to form a hydrate layer on the surface thereof. This hydrate layer increases the adhesion strength of the rolled copper foil to the insulating substrate through an adhesive, producing a copper foil laminated plate having an adhesion strength sufficiently high for practical use. Thus these copper foil laminated plates are very suitable for use in wiring of electronic devices.

Abstract: The method for producing a sleeve or ferrule for use in joining together the ends of strands of high tensile strength, single strand wire of any gauge from 12 to 18 gauge.

Abstract: This invention is a method for pre-expanding a heat exchanger tube prior to its insertion into a tube sheet. A tubular mandrel having an elastic bladder sheath sealed at each end is inserted into the tube and positioned at the point where the tube is to be expanded. A die with an annular recess approximating the shape to which the tube is to be expanded is clamped around the outer surface of the tube, concentric to the mandrel. The elastic bladder is then pressurized with hydraulic fluid pumped through a passage in the mandrel, thereby deforming the tube outward so that it conforms to the recess in the die. A heat transfer enhancement treatment thereafter may be applied to the exterior of the tube between the expanded sections, without concern that it may crack off when the tube is installed in a tube sheet. In addition, the hydraulic pre-expansion process prevents or minimizes cracking of the tube which sometimes occurs when a tube is expanded to an equivalent diameter in a single operation.

Abstract: In a sodium sulphur cell, improved protection of a cathode current collector is obtained by isostatically pressing graphite foil or flakes onto the surface of the collector, which surface is preferably roughened or coated with an intermediate conductive layer such as a nickel-chromium alloy or a conductive carbide providing a rough surface.

Abstract: A method and apparatus for containing an annular body of fluid about a sleeve spanning the abutting ends of pipe lengths, and firing a charge of propellant, such as fast burning smokeless powder, in the liquid so as to radially shrink the sleeve into sealing engagement with the pipe lengths. If desired, the pipe lengths can be internally supported to avoid the possibility of collapse. Hard annular elements may be interposed between the sleeve and the pipe length ends to produce better mechanical locking.

Abstract: Improved heat transfer surface for nucleate boiling is produced by metallizing a reticulated organic foam layer placed in contact with a tube or other heat transfer surface so as to form a reticulated metal surface layer which is integrally bonded to the heat transfer surface. The metallized foam layer is then at least partially pyrolyzed to form hollow metal strand portions. The boiling surface so produced is then modified to enhance its long term boiling stability by deforming the hollow strand portions to reduce their minimum internal diameter. In one manufacturing process, suitable small solid particles, which may or may not be permitted to remain in the finished product, are worked into the porous surface of the reticulated metal layer after which the layer is compacted so as to cause the particles to deform the hollow metal strand portions and thereby reduce their ability to carry liquid flow which could "flood out" vapor bubbles trapped in the tips of the hollow strands during a boiling operation.

Abstract: The invention relates to improving the heat transfer properties in boiling liquids of tubes and other surfaces by applying a very porous reticulated organic foam layer in contact with the tube surface, and then plating a thin metal coating on the foam substrate. Preferably, the tube is copper and the plating consists of a first electrolessly applied layer of copper and a second electroplated layer. The foam is preferably in the form of a thin tape which is spirally wound about the tube. Pyrolization of the foam after plating improves the heat transfer performance of the tube.

Abstract: A method of applying a metal sleeve to a concrete reinforcing bar by introducing between opposed surfaces of the sleeve and the bar, particles having a hardness greater than that of the bar and the sleeve and then compressing the sleeve on to the bar with a sufficient force to cause the particles to bite into and grip both the bar and the sleeve.The metal sleeve may be provided as having on its internal surface particles of the foregoing properties. The swaged connection is achieved by carrying out the foregoing method. The invention also contemplates a concrete reinforcing bar with the swaged connection.

Abstract: The invention relates to a method of improving the heat transfer properties in boiling liquids of tubes and other surfaces by applying a very porous reticulated organic foam layer which has been precoated with graphite in contact with the tube surface, and then plating a thin metal coating on the foam substrate. Preferably, the tube is copper and the plating consists of an electroplated layer of copper which is applied over the conductive graphite coated foam. the foam is preferably in the form of a thin tape which is spirally wound about the tube. Pyrolyzation of the foam after plating improves the heat transfer performance of the tube. A method for applying the graphite to the foam is also disclosed.

Abstract: The invention relates to improving the heat transfer properties in boiling liquids of tubes and other surfaces by applying a non-conductive very porous reticulated organic foam layer in contact with the tube surface, and then electroplating a metal coating on exposed portions of the tube to build up a matrix of metal through the porous portions of the foam layer. Preferably, the tube is copper and the plating consists of an electroplated layer of copper. The foam is preferably in the form of a thin tape which is spirally wound about the tube. Pyrolyzation of the foam after plating provides a network of interconnected pores in the metal matrix which improves the heat transfer performance of the tube. The plated tube may also be swaged.

Abstract: A wear-resistant lining is provided in the work chamber of a screw extruder by providing an internal cavity in the extruder housing of a shape corresponding to the external cross-section of a wearing insert but sufficiently larger such that a gap of predetermined width is provided between the walls. A layer of soft, hardenable material is applied to the outer surface of the wearing insert to a thickness slightly greater than the gap. The extruder housing is heated until the cavity expands to a degree sufficient to allow insertion of the insert. The insert is then placed into the cavity and the material is allowed to harden, as by heat hardening due to the temperature of the extruder housing.

Abstract: An apparatus having mating housing parts including a thin metallic sheet disposed at the interface of the housing parts and having multiple, short prongs extending from a side thereof to embed within one of the housing parts to thereby prevent relative movement between the housing parts, and a seal carried by the sheet.