...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7383713 | Method of manufacturing a consumable filler metal for use in a welding operation Method of manufacturing consumable filler metal wire, rod, or stick, and the like, of predetermined length and cross-section for use in welding, including: providing an ingot of a first metal and one or more different further metals; forming composite product by pro... | 06/10/2008 |
| 7290432 | Equipment for cold-drawing a metal wire Equipment for cold-drawing a metal wire. The equipment includes a succession of a sleeve with a cylindrical hole and a threading die with a conical hole. The sleeve is inserted into a support and terminates with an extension inserted into the conical hole of the thr... | 11/06/2007 |
| 7237415 | Method for producing slide seat and its manufacture device An improved method for producing slide seat and manufacture device, in which, one metal bar passes through the tamping drum groups arranged in tandem, apply the progressive model of slide seat mounted on the middle section of tamping drum to tamp gradually, meanwhil... | 07/03/2007 |
| 7162902 | Method for drawing brass-plated steel wire This invention relates to steel wires and steel cords used as a reinforcement for rubber articles such as pneumatic tire, industrial belt and the like, particularly steel wires and steel cords having an excellent adhesion property to rubber, in which an amount of ph... | 01/16/2007 |
| 7152644 | Rubber reinforcing steel cord, manufacturing method of rubber reinforcing steel cord and pneumatic tire A method of manufacturing a rubber reinforcing steel cord is provided, wherein the steel cord has a steel wire plated with metal containing copper and having on its surface an oil layer containing a cobalt compound, and includes an application step in which the oil ... | 12/26/2006 |
| 7140224 | Moderate temperature bending of magnesium alloy tubes A method for bending magnesium alloy tubes. The method includes heating the tube at moderate temperature in the range of about 100° C. to 200° C., and bending the tube to a bend angle or forming the tube to a desired shape. ... | 11/28/2006 |
| 7111485 | Flashing bender A stencil-like plate with angled shapes cut through the plate surface. The plate is adapted to having a piece of flashing inserted perpendicularly into one of the angled shapes and pulled through the plate. A resulting elongated bend angle is formed in the pliable f... | 09/26/2006 |
| 7070830 | Method and apparatus for producing elastomer/steel wire composites In a method of the present invention for producing elastomer/steel-wire composite, a steel wire is drawn through a plurality of drawing dies, and the steel wire is coated with an elastomer within 30 secs. after the steel wire passed through the final drawing die. An... | 07/04/2006 |
| 6923035 | Method and apparatus for forming a modified conduit A conduit modifier may be used to corrugate at least a portion of a conduit. The conduit modifier may include at least a first plurality of rollers arranged in a first pattern around a passageway. The first plurality of rollers may form ridges and grooves lengthwise... | 08/02/2005 |
| 6508001 | Method and apparatus for forming a wire A solid wire of precious metal, such as gold, is drawn through a die which has a groove forming element disposed in a drawing channel located between the inlet and outlet of the die. The hollow wire exiting the die has an eccentric longitudinal open groov... | 01/21/2003 |
| 6449999 | Device for feeding the front end of a wire coil into a drawing installation The aim of the invention is to reduce the amount of space and the technical effort required to feed the front end of a wire coil into a wire drawing installation. To achieve this, the arm of the device is formed from a base section and an end section, whe... | 09/17/2002 |
| 6410098 | Process for preparing copper-film-plated steel cord for vehicle tire A process is disclosed for preparing copper-film-plated steel cord suitable for use in vehicle tires comprising plating zinc or tin on the surface of steel cord, drawing the zinc or tin-plated cord, and then plating copper film onto the zinc or tin plated... | 06/25/2002 |
| 6374659 | Pressure wire drawing tool with detachable pressure and drawing dies A tool suited to the pressure wire drawing of wire rods and wires having a hole passing through it, includes a casing detachably disposed within the casing, a wire drawing nib separate from the pressure die and detachably disposed within the casing and al... | 04/23/2002 |
| 6325875 | Titanium fiber and method of producing the same A metal fiber of titanium or titanium alloy has given equivalent area diameter and specific surface area and is produced by a bundle drawing method wherein mild steel is used as a material for covering layer and outer housing and a composite wire is subje... | 12/04/2001 |
| 6316122 | Titanium fiber and method of producing the same A metal fiber of titanium or titanium alloy has given equivalent area diameter and specific surface area and is produced by a bundle drawing method wherein mild steel is used as a material for covering layer and outer housing and a composite wire is subje... | 11/13/2001 |
| 6257038 | Method of manufacturing a columnar material The invention has been accomplished in order to provide a method of manufacturing a columnar material of metal having an excellent dimensional accuracy without the need of much work time and cost, said method comprising equally forming a multiplicity of l... | 07/10/2001 |
| 6176064 | Apparatus and method for forming flashing A device for forming flashing, and a method for forming the same for adaptation to freeze boards. The present invention is a device for forming flashing comprising a plate with at least one groove cut through the plate. The groove in the plate has at leas... | 01/23/2001 |
| 5927131 | Method of manufacturing wire for use in a wire saw and wire for use in a wire saw A method of manufacturing wire for use in a wire saw used for slicing a semiconductor ingot into wafers is disclosed. A starting wire, which is an iron or iron alloy wire plated with copper or copper alloy, is drawn into a fine wire in a finish drawing st... | 07/27/1999 |
| 5921128 | Method and apparatus for cold rolling tubes A method and apparatus for continuously feeding rolling stock through a cold pilger rolling mill. A rolling stock--either a continuous or so-called "endless" piece, or a plurality of serially fed, spaced-apart pieces--is initially fed into a roll stand by... | 07/13/1999 |
| 5916323 | Pressure wire drawing tool with detachable pressure and drawing dies A tool suited to the pressure wire drawing of wire rods and wires having a hole passing through it, includes a casing detachably disposed within the casing, a wire drawing nib separate from the pressure die and detachably disposed within the casing and al... | 06/29/1999 |
| 5869196 | Constrained filament electrolytic anode and process of fabrication Porous metal compacts suitable for use as electrodes are formed through the reduction of a metal billet consisting of multiple filaments of an appropriate valve metal, preferably tantalum, contained within, and spaced apart by, a ductile metal, preferably... | 02/09/1999 |
| 5671878 | Ceramic-made guide for rolling line A ceramic guide for a rolling line, used for wire rod transfer in a rolling line, which has a cylindrical contour and a throughhole for wire rod transfer. The throughhole includes a tapered hole and a straight hole of constant diameter, the tapered hole b... | 09/30/1997 |
| 5487292 | Method and apparatus for advancing tubing into a draw die The invention is directed to a method and apparatus for advancing tubing into a draw die in reducing the diameter of the tubing. The tubing is advanced forward through opposed rotating tolls which apply compressive stress to the tubing and through a close... | 01/30/1996 |
| 5481788 | Apparatus for producing welding rod A method and apparatus for producing high quality welding rod including a first forming of an ingot under vacuum forming techniques; a continuous mechanical de-scaling at all stages, including, but not limited to, final drawing; an unusual electrolytic pu... | 01/09/1996 |
| 5467631 | Method for manufacturing a plug-type chamber used in the cascade drawing of tubes, and device for implementing the method A method and apparatus for manufacturing a plug-type chamber to accommodate at least two floating plugs for use in the cascade drawing of tubes is disclosed. A starting tube is first fixed in position by a clamping and denting device. A necking-down ring ... | 11/21/1995 |
| 5277044 | Wire drawing machine with diameter watching-system A wire drawing machine having a watching system of the wire diameter at one or more watched locations in the machine. The diameter is measured by measuring the wire speed as compared to the reference wire speed at a reference location where the diameter i... | 01/11/1994 |
| 5126945 | Nonferrous extrusion process control system A control system is provided for coordinating and monitoring material flow through a nonferrous extrusion facility. The system maintains first-in/first-out queues between stations within the facility to improve tracking of the material through the process... | 06/30/1992 |
| 5106825 | Fabrication of superconducting wire and product A method of fabricating a rugged, flexible, superconducting wire comprising: mixing a superconducting material, such as YBa2 Cu3 Ox, with a metallic powder to form a metal/superconductor mixture; and loading a metal shell ... | 04/21/1992 |
| 5009723 | Method for manufacturing high strength non-magnetic stainless steel A high strength non-magnetic stainless steel comprising, by weight ratio, less than 0.20% C, less than 1.00% Si, 14-16% Mn, less than 0.005% S, 0.2-1.0% Ni, 15-19% Cr, 0.30-0.40% N, and Fe and other impurity elements, of which C+N constitutes 0.40-0.55% a... | 04/23/1991 |
| 4952554 | Apparatus and systems comprising a clad superconductive oxide body, and method for producing such body A method of producing normal-metal-clad superconductive oxide wire, tape and the like is disclosed. The method comprises forming an intermediate body by surrounding a quantity of the oxide powder (e.g., Ba2 YCu3 O6.9) with... | 08/28/1990 |
| 4791025 | Stainless steel wire and process for manufacturing the same A stainless steel wire for springs is proposed which has a colored coating of resinous paint thereon. The wire is coated with a paint, dried and baked to form a coating and is then drawn to a desired diameter. The coating has a good adhesiveness and good ... | 12/13/1988 |
| 4790165 | Feed-through element for a vacuum apparatus The invention relates to a feed-through element for application in a vacuum apparatus for the continuous feeding through of wire-shaped material to be treated at least made up of a casing and a sealing element set up therein that is in contact with the su... | 12/13/1988 |
| 4745002 | Electrical conductors for cable Method of making copper clad conductor by impinging of copper particles upon a heated steel wire to cause adhesion of the particles to the wire, by coalescence, building up the particles to form a coating and then drawing the coated wire to the required d... | 05/17/1988 |
| 4734827 | Tantalum capacitor lead wire A tantalum lead wire for capacitors having improved grain growth characteristics is disclosed. The lead preferably comprises a Niobium core having a surface consisting of many discrete layers of Tantalum surrounding the Niobium.... | 03/29/1988 |
| 4678718 | Process and usage of ceriated tungsten electrode material The mentioned ceriated tungsten material is a non-radioactive, hardly consumable or nonconsumable matallic electrode material, utilized in the inert gas shield arc welding, plasma welding, cutting, spray coating and smelting. It can also be used as electr... | 07/07/1987 |
| 4646197 | Tantalum capacitor lead wire A tantalum lead wire for capacitors having improved grain growth characteristics is disclosed. The lead preferably comprises a Niobium core having a surface consisting of many discrete layers of Tantalum surrounding the Niobium.... | 02/24/1987 |
| 4611390 | Method of manufacturing superconducting compound stranded cable A superconducting compound cable which comprises a plurality of strands each having therein at least one filament of a superconducting compound material in the lengthwise direction of the strand, said strands being of an elliptical or flat shape in cross ... | 09/16/1986 |
| 4578985 | Die with solid particle removal groove The present invention relates to an improved die configuration. The die comprises a body member having an interior passageway defined by a bell portion and a land portion. To improve die efficiency, the bell and land portions are provided with a helical g... | 04/01/1986 |
| 4551896 | Method of manufacturing a rotor for a rotary fluid pump A method of forming a rotor for a vane-type rotary pump. The rotor is generally cylindrical with a plurality of vane slots. A tubular member having generally flat sections separated one from the other by corner portions is formed into the rotor by forming... | 11/12/1985 |
| 4549421 | Method and apparatus for reducing the section of elongated components Apparatus and method for reducing wire and other elongated components in section by passing them through a reservoir containing a substance which will act as a lubricating and pressurizing medium and then, surrounded by the medium but without solid-to-sol... | 10/29/1985 |