Bizarre Patents
Dining Table Having Integral Dishwasher
A space-saving dishwasher, which may be installed within a counter top or table, having a dish-carrying rack that is vertically shiftable through the open top of the dishwasher for facilitating loading and unloading of the dishes.
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| Number | Title | Issue Date |
| 8192566 | Annealing and pickling process A continuous annealing and pickling process of flat cold-rolled products, such as stainless steel strips, to obtain a high surface quality product at high production rates and with a low environmental impact. It comprises the following steps: heating, up to a temper... | 06/05/2012 |
| 7384489 | Atmosphere control during continuous heat treatment of metal strips A method for heat treating metallic strips inside a heat treatment chamber at a pressure greater than atmospheric pressure including passing the strips through at least one heating zone of the chamber and moving the strip through at least one cooling zone of the cha... | 06/10/2008 |
| 7056399 | Passivation of steel surface to reduce coke formation The present invention provides a process to treat steels, preferably carbon steel to reduce the tendency of the steel to form coke when in contact with hydrocarbons at elevated temperatures. The steel may be first reduced then treated with a mixture of compounds whi... | 06/06/2006 |
| 6780257 | Iron component and a manufacturing method therefor A base plate of a stainless-steel body material formed by pressing is polished and cleared of burrs by means of an abrasive material that consists mainly of Fe2O3 in a polishing process. The polished base plate is heated to a heat treatment tem... | 08/24/2004 |
| 6527884 | Hydrogen annealing process and apparatus therefor An apparatus for selectively implementing a depressurized or an atmospheric hydrogen annealing process comprises a reaction chamber, a hydrogen gas introduction line for feeding hydrogen gas into the reaction chamber and an atmospheric exhaust line and a ... | 03/04/2003 |
| 6458217 | Superadiabatic combustion generation of reducing atmosphere for metal heat treatment Systems useful for superadiabatic combustion generation of a reducing atmosphere for metal heat treatment include a superadiabatic reactor which supplies a reducing atmosphere to a metal heat treatment apparatus. In one aspect, the reactor includes a poro... | 10/01/2002 |
| 6358337 | Process for the annealing of drawn carbon steel rolls and coils of carbon steel sheet Improved process for the annealing of drawn carbon steel rolls and coils of rolled carbon steel sheet. This process is characterized in that in the stage of roll heating the heating is stopped before reaching the temperature at which the reaction between ... | 03/19/2002 |
| 6092389 | High rate cooling furnace for metal strips In an apparatus that rapidly cools heat treated metal strips with a recirculating nitrogen-hydrogen cooling gas mixture having a hydrogen content which ranges between 15%-50%, and a recirculation circuit for the gas mixture having a fan for creating a flo... | 07/25/2000 |
| 5882445 | Method of making semi-finished metal products A method for producing metallic semifinished products such as strip or wire rom metallic work materials which have a high melting point and are difficult to shape, comprising the steps of a) first, alloying at least one element for lowering the melting poi... | 03/16/1999 |
| 5798007 | Process and apparatus for the continuous heat treatment of a metal strip travelling in a different atmosphere Process for the continuous heat treatment of a metal strip, the latter travelling through a furnace, which is thermally insulated, and in a protective atmosphere; the said furnace consisting of at least one section, for heating, for temperature hold and f... | 08/25/1998 |
| 5785773 | Process for avoiding stickers in the annealing of cold strip When cold strip is annealed, diffusion welds, so-called stickers, frequently form on the strip surface. In order to avoid these, the cold strip, above 600° C. (holding time) is coated by oxidation with a thin surface film which prevents the sticking toge... | 07/28/1998 |
| 5785774 | Process for producing heat treatment atmospheres An endogenerator is provided in which CO and H2 are generated as primary products of hydrocarbon oxidation. Noble metal catalysts such as platinum (Pt) and particularly rhodium (Rh), are loaded on a porous ceramic support, of example, an alumin... | 07/28/1998 |
| 5779826 | Method for forming heat treating atmospheres The present invention is directed to a method for forming a heat treating atmosphere in which a nitrogen rich gas containing small amounts of oxygen is preheated. An oxygen-reactive gas, such as a hydrocarbon gas, is combined with the nitrogen rich gas an... | 07/14/1998 |
| 5772428 | Method and apparatus for heat treatment including H2 /H2 O furnace region control A closed-loop control system controls introduction of either water or hydrogen into a furnace region where a part is subjected to an elevated temperature to accomplish a heat treatment process. The heat treatment process causes the part to participate in ... | 06/30/1998 |
| 5645655 | Process to anneal steel strips in an annealing furnace without generating carbon black A process to anneal a steel strip in an annealing furnace in an inert-gas atmosphere containing hydrogen, with reduced formation of carbon black and encompassing the phases of heating, retention and cooling, wherein on the surface of the steel strip are i... | 07/08/1997 |
| 5614039 | Argon employing heat treating process Method for heat treating a metal in which argon gas is selectively injected into the cooling zone of a heat treating apparatus when the temperature therein is above the level at which significant nitriding will occur.... | 03/25/1997 |
| 5587027 | Method of manufacturing canning steel sheet with non-aging property and superior workability A method for manufacturing a canning steel sheet with non-aging property and superior workability uses, as a starting material, an ultra-low-carbon steel slab composed of from 0.0015% to 0.0100% by weight C, up to 0.20% by weight Si, from 0.10% to 1.20% b... | 12/24/1996 |
| 5569339 | Method of annealing metal parts The present invention relates to a method for annealing metal parts, in particular sheets, in an annealing chamber of an industrial furnace under a protective-gas atmosphere, wherein the annealing comprises a heating phase, a soaking phase and a cooling p... | 10/29/1996 |
| 5441581 | Process and apparatus for producing heat treatment atmospheres An endogenerator is provided in which CO and H2 are generated as primary products of hydrocarbon oxidation. Noble metal catalysts such as platinum (Pt) and particularly rhodium (Rh), are loaded on a porous ceramic support, of example, an alumin... | 08/15/1995 |
| 5261976 | Control system for a soft vacuum furnace A control arrangement is disclosed for a conventional, atmosphere heat treating furnace which is operated at high temperature and fitted with a vacuum pump to draw rough or soft vacuum levels when heating the work to heat treat temperatures. The control a... | 11/16/1993 |
| 5137586 | Method for continuous annealing of metal strips An improved method of heat treating a continuous strip of metallic material of indeterminate length in a continuous annealing furnace. The furnace includes a heating section having a plurality of gas jet heaters and a cooling section having a plurality of... | 08/11/1992 |
| 5089059 | Method and device for the heat treatment of metal straps A method and device (100) for heat treating a metal strap (1), characteri by passing the strap (1) within an enclosure (2) containing a gas (3) which is practically free of forced ventilation, in such a manner that a transfer of heat takes place between ... | 02/18/1992 |
| 5022933 | Process for annealing boron-containing steels and product thereof Boron-containing steel products having boron contents of up to 200 ppm are obtained by an annealing process in the temperature range of between 850° and 1050° C. The characterizing feature of the invention is that the products are annealed in the state ... | 06/11/1991 |
| 4872924 | Method of producing shadow mask of color cathode ray tube A method of producing a shadow mask for use in a color cathode ray tube, has the following steps which are conducted in sequence: preparing an alloy sheet having a composition consisting of 30 to 50 wt % of Ni, 1 to 5 wt % of Ti and the balance substantia... | 10/10/1989 |
| 4867808 | Heat treating a metallic workpiece by quenching under cooling gas under above atmospheric pressure and specified circulation rate A process for heat treatment of metallic workpieces by heating in a vacuum furnace followed by quenching in a coolant gas under above-atmospheric pressure and with coolant-gas circulation.... | 09/19/1989 |
| 4571273 | Process of heating and cooling charges in batch-process industrial furnaces In a process of heating and cooling charges in batch-process industrial furnaces, particularly in a process of cooling coils of steel wire or strip steel in bell-type annealing furnaces, the charge is heated and cooled in contact with circulated protectiv... | 02/18/1986 |
| 4536226 | Method of manufacturing a shadow mask for a color cathode ray tube A method of manufacturing a shadow mask includes the steps of perforating a number of apertures in a sheet of iron-nickel alloy, annealing the sheet, and forming the sheet, after annealing, into a shadow mask by pressing while the sheet is kept at a prede... | 08/20/1985 |
| 4437905 | Process for continuously annealing a cold-rolled low carbon steel strip A cold-rolled low carbon steel strip is continuously annealed by rapidly heating the steel strip with a gaseous combustion product which has been prepared at a combustion air ratio of 0.8 or more but less than 1.0 in a direct fired furnace to a temperatur... | 03/20/1984 |
| 4415379 | Heat treatment processes Ferrous material such as tool steel is annealed in a batch or continuous furnace into which inward leakage of an ambient oxidant occurs. The hot zone is heated to a temperature of about 1250°-1650° or higher and the material passed therethrough under a ... | 11/15/1983 |
| 4359351 | Protective atmosphere process for annealing and or spheroidizing ferrous metals Methanol and nitrogen are injected into a furnace utilized for annealing or spheroidizing metal articles. The methanol reacts inside the furnace to provide an atmosphere with a carbon potential that will minimize or prevent carbon removal or carbon additi... | 11/16/1982 |
| 4334938 | Inhibited annealing of ferrous metals containing chromium A process for limiting the absorption of nitrogen by ferrous metal containing chromium as an alloying additive (e.g. stainless steel) during high temperature annealing in an atmosphere of nitrogen and hydrogen by controlled additions of an inhibitor selec... | 06/15/1982 |
| 4300946 | Granulating and activating metal to form metal hydride A metal material, which is capable of reacting with hydrogen to form a metal hydride, is simultaneously granulated and conditioned with hydrogen to activate the metal material to a state in which it is capable of readily reacting with and absorbing hydrog... | 11/17/1981 |
| 4268326 | Process for producing grain oriented electrical silicon steel sheet An electrical silicon steel sheet composed of secondary or tertiary recrystallized grains oriented in one or two directions, is produced by a process comprising a decarburization annealing operation in an oxidation atmosphere in which a ratio of PH2 | 05/19/1981 |
| 4242154 | Preheat and cleaning system A continuous cleaning and preheating system for steel strip to be annealed prior to being coated or otherwise treated wherein controlled reducing steps are employed to remove surface contaminants from the strip, which system uses direct flame heating wher... | 12/30/1980 |
| 4211584 | Methods of heat-treating steel This invention relates to a method of heat-treating steel in a furnace in the presence of a controlled atmosphere. The H2 O content of the furnace is determined, the atmosphere is formed by adding to a carrier gas a quantity of a hydrocarbon having ... | 07/08/1980 |
| 4210469 | Process of annealing for preventing temper colors on a steel sheet A process of annealing for preventing temper colors on a steel sheet in a box annealing furnace, which comprises placing an oxidizable iron-base material at a position of low temperature in a circulating path of a furnace gas.... | 07/01/1980 |
| 4183773 | Continuous annealing process for strip coils In a continuous annealing process, the annealing furnace is comprised of two adjacent chambers, one for heating and the other for cooling with a door therebetween. The strip coil to be annealed is brought into the heating chamber, such as by a vehicle on ... | 01/15/1980 |
| 4170495 | Method and means for hardening and hot-zincing iron and steel products A method for hot-zincing and hardening iron and steel products. After removing grease from the products they are heated to austenitizing temperature and are subsequently introduced directly into a zinc bath for simultaneous zincing and hardening.... | 10/09/1979 |
| 4167426 | Method for annealing silicon steel Individual charges of silicon steel are passed through a tunnel type furnace provided with charge and discharge vestibules. The annealing takes place in a hydrogen atmosphere and the vestibules are purged with nitrogen and then with hydrogen. The hydrogen... | 09/11/1979 |
| 4127429 | Forsterite insulating films formed on surface of a grain-oriented silicon steel sheet having a high magnetic induction and a method of forming the same A forsterite insulating film having a good adhesion property to a grain-oriented silicon steel sheet with a high magnetic induction is composed of forsterite grains having a mean grain size of not more than 0.7 μm. The forsterite insulating film is forme... | 11/28/1978 |
