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| Number | Title | Issue Date |
| 7332199 | Thermal spraying of a piston ring The invention relates to a piston ring coated with a coating material by a thermal spray process, exposed to heat treatment of the coating material at an elevated temperature and for a time effective to at least partially diffuse the coating material into the piston... | 02/19/2008 |
| 7267028 | Stacked disc flywheel A high-speed steel flywheel for a flywheel uninterruptible power is constructed by stacking several unpierced steel discs together. Each disc is heat treated prior to assembly. Thin axial thickness of each disc enables complete rapid quenching to attain a fully hard... | 09/11/2007 |
| 7249412 | Method for repairing a damaged blade of a Blisk A BLISK having a damaged blade, with a repair region that has a thickness less than a specified thickness as a result of damage during manufacture or prior service, is repaired by depositing repair metal onto the repair region to increase its thickness to greater th... | 07/31/2007 |
| 7163754 | Sprocket wheel having a metallurgically bonded coating and method for producing same A sprocket has a base steel member including an outer toothed profile surface, at least a portion of the outer toothed profile surface having a wear and corrosion resistant coating disposed thereon; the coating comprising an alloy, the alloy comprising at least 60 w... | 01/16/2007 |
| 7147201 | Method for annealing an electrodeposition structure A method for annealing a structure formed by electrodeposition is provided, the method comprising providing the electrodeposition structure, the electrodeposition structure comprising an electroformed mold, the electroformed mold having a nominal thickness between a... | 12/12/2006 |
| 7147729 | Method and apparatus for induction heat treating electrical contacts A method and apparatus are provided in accordance with embodiments of the present invention for heat-treating electrical contacts. The method and apparatus include plating a core wire with at least one conductive coating to form an electrical contact that experience... | 12/12/2006 |
| 7146735 | Method of making a bearing ring for a large roller bearing A bearing ring for a large roller bearing is formed with at least one annular race which is hardened by heating by juxtaposing that race with an inductor across a spacing which is maintained during the heating and then quenching. The spacing is controlled selectivel... | 12/12/2006 |
| 7077920 | Method of making coated steel part with regions of different ductility A workpiece having regions of different ductility is made by first coating opposite faces of a flat sheet-metal workpiece of low ductility and then stripping the coating from the faces in one region of the workpiece while leaving the coating on the faces in another ... | 07/18/2006 |
| 7032808 | Thermal spray application of brazing material for manufacture of heat transfer devices The invention relates to a method of manufacturing and coating heat transfer parts for a heat exchanger such as tubes in an automobile radiator. The tubes are coated with brazing material by thermal spraying, such as plasma deposition or wire-arc deposition. The coa... | 04/25/2006 |
| 6997371 | Thermal spray application of brazing material for manufacture of heat transfer devices The invention relates to a method of manufacturing and coating heat transfer parts for a heat exchanger such as tubes in an automobile radiator. The tubes are coated with brazing material by thermal spraying, such as plasma deposition or wire-arc deposition. The coa... | 02/14/2006 |
| 6843866 | Process for producing wear-resistant surface layers Process for the effective production of very wear-resistant layers in the thickness range of 0.2 to approx. 3 mm by way of inductively supported surface layer modification. It can be used particularly advantageously for the protection of components of hardenable ste... | 01/18/2005 |
| 6511559 | Process for producing wear-resistant edge layers in precipitation-hardenable materials A process for producing wear-resistant edge layers in precipitation-hardenable materials wherein a component that was conventionally solution annealed and subsequently subjected to a conventional aging heat treatment is subjected to another short-time ... | 01/28/2003 |
| 6491770 | Strand galvanizing line A method for annealing and galvanizing wires which comprises induction heating the wires in a first chamber at a first higher temperature to anneal the wires, cooling the wires to a second lower temperature in a second chamber and galvanizing the wires in... | 12/10/2002 |
| 6383315 | Profile clamp and method for manufacturing a profile clamp A steel profile clamp is used to join flanged component parts. The profile clamp has at least partially conical side walls that are bent radially inwardly. The profile clamp has welding joints to maintain the shape of the clamp. The steel is martensitic f... | 05/07/2002 |
| 6379481 | Method and apparatus for carrying out the annealing step of a galvannealing process A method and an apparatus for carrying out the annealing step of a galvannealing process in which strips and sheets, particularly of steel, are subjected after galvanizing to an annealing step by heating the coated material and subsequently holding at fin... | 04/30/2002 |
| 6259076 | Method for hardening camshafts and linear inductor for the implementation of said method A method for simultaneously hardening a group of cams on a camshaft comprises first heating the group of cams at low power for at least one heating interval, then pausing the heating for a pause interval during which no power is applied to the group of ca... | 07/10/2001 |
| 6231695 | Method of heat-treating a thin sheet coated with ZnAL by hot dip galvanization A thin sheet is coated by hot dip galvanization with a zinc based alloy comprising 3.5% to 15% by weight of aluminum. Immediately after solidification of the coating, the thin sheet is heated for 2 to 10 seconds to a temperature 20 to 100° C. above the m... | 05/15/2001 |
| 6190470 | Process for manufacturing a honeycomb body from heat-treated two-layered or multi-layered metal foils A process and a device are provided for manufacturing a honeycomb body from at least one metal foil constructed from at least two different layers, in particular from steel roll-bonded with aluminum. The metal foil is at least partly provided with a struc... | 02/20/2001 |
| 6156133 | Method for manufacturing a product with a metallic basic body A method for manufacturing a product that includes a metallic basic body with at least one longitudinal duct disposed therein and with a number of transverse ducts branching off from the longitudinal duct. A covering layer lies on the outside of the basic... | 12/05/2000 |
| 6156134 | Bonding method of dual phase stainless steel In a method of bonding ferric and austenitic dual stainless steels, an insert material made of a Ni base alloy having a melting point below 1290° C. is put between the bonding cross section faces of mother material steels comprising a dual phase stainles... | 12/05/2000 |
| 6093267 | Tire having circumferential cables for anchoring the carcass and process of preparing such cables The anchoring of the carcass reinforcing elements 1 is assured by circumferential cables 2, with the interposition of a connecting rubber composition 3. The circumferential cable 2 is arranged in several turns forming one or more helices. These circumfere... | 07/25/2000 |
| 6083329 | Gas shielding apparatus and gas shielding method A gas shielding apparatus comprising a main gas jacket having induction heating means, and front gas jacket and rear gas jacket integrally disposed at supply side and discharge side of a member to be bonded or a member to be heated of the main gas jacket,... | 07/04/2000 |
| 6063218 | Bearing manufacturing method In a method of manufacturing a bearing, a high-frequency hardened steel essentially containing the following elements in the following percentage by weight is employed as the material of at least one of the outer and inner races of the bearing which is dr... | 05/16/2000 |
| 5911844 | Method for forming a metallic material A method for drawing a portion of metallic material having a known hardness. The method includes the step of applying a localized heat treatment to predetermined portions of the metallic material. Additionally, the method comprises forming the localized h... | 06/15/1999 |
| 5830289 | Process for enhancing the bond strength of resistance welded joints between titanium alloy articles A process for enhancing the bond strength of resistance welded joints between titanium alloy articles includes a first step of resistance welding two titanium alloy articles and a second step of heat treating the resistance welded titanium alloy articles ... | 11/03/1998 |
| 5821500 | Process for manufacturing welding wire A process for manufacturing seamless flux-cored welding wires 0.8 to 4 mm in diameter with excellent cracking resistance and primer proof quality and containing very little diffusible hydrogen suited for the welding of high-tensile steels and steel struct... | 10/13/1998 |
| 5766378 | Stainless steel surface claddings of continuous caster rolls A heat-treated cladding on the working surfaces of continuous caster rolls reduces sensitization zones. The thermal treatment applied conditions the working surface of the roll substantially uniformly at all positions around the perimeter of the roll, the... | 06/16/1998 |
| 5721414 | Method of manufacturing a spark erosion electrode wire An entry wire passes through a furnace containing zinc vapor in an inert atmosphere. While passing through the furnace the wire is heated by the Joule effect, by passing through it an electrical current produced by a generator, which rapidly heats it to t... | 02/24/1998 |
| 5718780 | Process and apparatus to enhance the paintbake response and aging stability of aluminum sheet materials and product therefrom A method and apparatus for making aluminum alloy sheet product with improved paintbake response during automotive paintbake cycles, resistance to natural aging and better formability includes rapidly heating the aluminum alloy sheet product between a solu... | 02/17/1998 |
| 5699955 | Method of bonding Ti-alloy members A method of firmly jointing Ti-alloy members of various shapes such as pipes and rods by solid diffusion bonding. The members are butted and heated under pressure in a non-oxidizing atmosphere, while a Ti-layer is disposed at the interface of butting by e... | 12/23/1997 |
| 5628842 | Method and apparatus for continuous treatment of a strip of hot dip galvanized steel A method and apparatus for continuously treating a strip of hot dip-galvanized steel. The method comprises the steps of rapidly reheating the strip to a predetermined temperature between 460° C. and 600° C., with a heating flux greater than 180 kWatts p... | 05/13/1997 |
| 5509980 | Cyclic overageing heat treatment for ductility and weldability improvement of nickel-based superalloys The present invention is directed to a pre-weld overageing heat treatment for nickel-based superalloys, where the alloy is heated to solutionization temperature for a time sufficient to dissolve the gamma prime phase of the alloy microstructure, then slow... | 04/23/1996 |
| 5494539 | Metal member quality improving method by spot welding By applying spot welding along a crack which has occurred in an austenitic stainless steel structure without use of welding material so that spot welds are connected, melting and solidifying of the crack can be achieved, thereby to provide a metal structu... | 02/27/1996 |
| 5409553 | Process for manufacturing galvannealed steel sheets having high press-formability and anti-powdering property It is an object to provide a process for manufacturing galvannealed steel sheets having high anti-powdering property as required when they are press formed, and stabilized frictional properties in a coil. Steel sheets are plated in a bath having a low alu... | 04/25/1995 |
| 5205877 | Process for making wire mesh screens Making wire screens using high carbon steel wire. A first array of wires are placed in a longitudinal configuration and a second array of wires are placed transversely of said first array. The junctions where the wires meet are heated to a temperature of ... | 04/27/1993 |
| 5167733 | Method for manufacturing iron-manganese-aluminum alloy castings An Fe-Mn-Al alloy is useful for making a precision casting having uneven or thin wall thickness. The alloy, which contains carbon 1.5-2.0% manganese 32.36% aluminum 6-8%, molybdenum 1.0-1.5% and iron remainder, is heated to 1400°-1420° C. to melt, an th... | 12/01/1992 |
| 5157231 | Apparatus for inductive hardening crankshafts with crank pins having a hollow ground radius A method for the inductive hardening of working surfaces and transition radii on crankshafts in which, to receive connecting rods, crank pins are disposed directly one after another at different angular attitudes in planes at right-angles to the axis of r... | 10/20/1992 |
| 5128172 | Continuous coating process with inductive heating A continuous process for coating a series of workpieces with a metal coating comprises the steps of cleaning the workpieces with a high-pressure water system which utilizes particulates; isolating the workpieces in a non-oxidizing chamber; spraying the wo... | 07/07/1992 |
| 5037490 | Process for allowing pretreatment of assembled camshaft components A process for allowing pretreatment of components for an assembled camshaft in the course of whose production drive elements are attached in a force-locking way to a tube through plastic expension of individual tube portions while exceeding the limit of e... | 08/06/1991 |
| 5009000 | Method for making sucker rod oil well pump A method of hardening a sucker rod well pump has a step of forming a boronized case on the plunger. Then the plunger is heated and quenched to form a hardened steel supporting layer. A chromium case is formed on the barrel.... | 04/23/1991 |
