Class 29/81.01 - SCALE REMOVER OR PREVENTOR

Subclass of Class 29 - Metal working
Definition: Process or apparatus for removing metallic oxide, sulfide,
No. of patents: 27
Last issue date: 04/17/2012

Number	Title	Issue Date
8156623	Apparatus for removing material from surfaces of a metals processing chamber Methods and apparatus for removing condensed metal from the surfaces of metal processing chambers, such as, vacuum induction melting (VIM) furnaces having, for example, condensed Mg or Ti, are disclosed. The methods and apparatus provide a robotic arm end positioned...	04/17/2012
8099844	Method and apparatus for removing material from a surface of a metal processing chamber Methods and apparatus for removing condensed metal from the surfaces of metal processing chambers, such as, a vacuum induction metal (VIM) furnaces having, for example, condensed Mg or Ti, are disclosed. The methods and apparatus provide a robotic arm end positioned...	01/24/2012
8074331	Slurry blasting apparatus for removing scale from sheet metal An apparatus and method of removing scale from the surfaces of processed sheet metal and tubular metal employs a scale removing medium propelled by counter-rotating pairs of wheels positioned in close proximity to the metal surfaces. ...	12/13/2011
7730597	Method for processing metal molding member having fine configuration, method for manufacturing metal molding member, extrusion die, method for manufacturing extruded member, and extruded member A molten residual layer formed on a surface 26 of an electric-discharge machined portion 12 of a metal molding member 1 is eliminated by using a tool 70 made by a wire discharge grinding method. According to the wire discharge grinding me...	06/08/2010
7500298	Blast head for loosening or removing scale on a metal surface A method and apparatus for the descaling of metal surfaces without the use of caustic substances is provided. The apparatus includes a first and second blast heads containing nozzles that spray high velocity jets of media at a scale covered continuous sheet of steel...	03/10/2009
7357011	Method and apparatus for manufacturing metal strips The invention concerns a method for producing metal strip (1) in an installation (2), in which a metal strand, especially a thin slab, is brought to a desired temperature and/or is maintained at a desired temperature in a furnace (3, 3a, ...	04/15/2008
6890665	Martensitic stainless steel and method for manufacturing the same Martensitic stainless steel whose steel composition is restricted within a specific range for each element is provided. The scale layer formed on the surface of the base material consists of an inner layer scale mainly including FeCr2O4 and an ...	05/10/2005
6854169	Method for the descaling of metal A method and apparatus for the descaling of metal surfaces without the use of caustic substances is provided. The apparatus includes a first and second blast heads containing fan shaped nozzles that spray high velocity jets of smooth edged, ceramic media at a scale ...	02/15/2005
6694584	Quick set up wire descaler A descaler is provided for descaling the scale on hot finished wire or green rod. The descaler comprises two rollers that are mounted to a rotatable support plate. The support plate and the rollers rotate in unison. One of the rollers pivots relative to t...	02/24/2004
6554908	Process for pickling stainless steel in the absence of nitric acid and in the presence of chloride ions Process for pickling stainless steel carried out at a temperature of between 20° and 70° C., with the use of a pickling solution containing the following basic ingredients: H2 SO4 (free acid): 50 to 200 g/l HF (free acid): 0 to 60 g/l F...	04/29/2003
6539574	Non-abrasive deburring device for metal parts A deburring tool for performing non-abrasive deburring of metal and other hard-material parts subject to burring. The deburring tool comprises a portion shaped to engage a specific surface on a workpiece, and surfaced with a deburring material comprising ...	04/01/2003
6439883	Threading and scale removal device A threading and scale removing device is disclosed which includes a heating apparatus having an inlet and an outlet. A work-piece is fed through the inlet and exits through the outlet. A plurality of rollers are operatively associated with the heating app...	08/27/2002
6390029	Water heater with sediment agitating inlet A water heater has a cold water inlet bushing which screws into a threaded boss in the side wall of a hot water tank near its bottom. Cold water is injected through a pipe into the inlet bushing. A blind passageway is formed within the inlet bushing which...	05/21/2002
6385832	Descaling device for a continuous cast metal strip A descaling device for hydromechanically descaling metal strip has a descaling spray arrangement with first and second spray nozzles arranged adjacent to one another in first and second spray nozzle rows transverse to the transport direction with several ...	05/14/2002
6267085	Water heater with sediment agitating inlet bushing A water heater has a cold water inlet bushing which screws into a threaded boss in the side wall of a hot water tank near its bottom. Cold water is injected through a pipe into the inlet bushing. A blind passageway is formed within the inlet bushing which...	07/31/2001
6216770	Method of improving the surface quality of a continuously cast slab A method of improving the surface quality of a continuously cast slab, particularly a thin slab having a maximum cast thickness of 100 mm, wherein the slab is covered with a casting slag film and a layer of scale, and wherein the slab is descaled after ca...	04/17/2001
6197736	Alkaline cleaning solution An improved alkaline cleaning solution that has the ability to descale, derust, and completely dissolve machining lubricants coated on steel and other iron alloy objects, the alkaline cleaning solution consisting essentially of: (a) water; (b) about 10% t...	03/06/2001
6088895	Method for descaling hot rolled strip This invention relates to a process for producing a cold rolled, recrystallation annealed, stainless steel strip having lustrous surfaces without being hot band annealed and/or pickled prior to cold reduction. The process includes the sequential steps of ...	07/18/2000
5661884	Offset high-pressure water descaling system The present invention provides a descaling system for hot strip or plate mills. The descaling system includes upper and lower spray headers which are offset from each other along the pass line. Each spray header is adapted to direct a high-pressure water ...	09/02/1997
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
5131126	Method for descaling hot-rolled stainless steel strip A descaling method for removing oxide scale from a hot-rolled stainless steel strip. A solution of an alkaline earth metal chloride is applied to the surface of the oxide scale layer formed on the hot-rolled stainless steel strip, and the solution is allo...	07/21/1992
5010632	Descaling device A descaling tool for use with a reciprocating hammer for removing foreign substances from metal, wood, stone, or the like. The tool is comprised of an elongated shank, one end having an adapter for receipt into a reciprocating hammer, the other having a b...	04/30/1991
4974434	Controlled shot peening A device for bending or levelling workpieces by means of shot peening is improved by controlled impacting and indenting using a support element having a rear wall and side walls; a plurality of force spaced apart distributing elements are arranged in the ...	12/04/1990
4919157	Method of cleaning metal components for cathode ray tubes Metal components for cathode ray tubes have up till now been degreased by washing with halogenated hydrocarbons. These degreasing agents pollute the environment, The new method is ecologically sound and the metal components are cleaned so thoroughly that ...	04/24/1990
4724589	Method for cleaning electrodes A method of cleaning a spent anode assembly after removal from an aluminum reduction cell, the assembly including a support rod and yoke and the remaining portions of at least one rigid carbon electrode held on the support rod and yoke and upon which is d...	02/16/1988
4578407	Thixotropic rust removal coating and process Spreadable thixotropic coating composition suitable for rust removal and containing polyvinylpyrrolidone, water and a thixotropic agent which is either xanthan gum or water-soluble crosslinked interpolymer of maleic anhydride, monovinyl alkyl ether and cr...	03/25/1986
4063063	Method of descaling metal products Metallic sheets, wires, bars or other products are descaled by sweeping their surfaces with one or more laser beams to detach an adhering oxide film along lines traced by the beam sweep. The film fragments, still loosely adhering at locations between the ...	12/13/1977

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Class 29/81.01 - SCALE REMOVER OR PREVENTOR