U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6650315

Mouse device with a built-in printer

A mouse device for use as an input device of a computer is provided that includes a housing in which recording paper is loadable, and a printer unit provided within the housing for printing on the recording paper print information received from the computer.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 75/672 - Treating slag or dross


Subclass of Class 75 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
Definition: Process in which a slag or dross is treated to produce Aluminum
No. of patents: 59
Last issue date: 01/09/2007


1    
NumberTitleIssue Date
7160501Method for the salt-free, non-oxidizing remelting of aluminium
Process and device for saltless, oxidation-free remelting of aluminum, its alloys and of aluminum scrap with miscellaneous impurities, such as combustible oily substances, adherent combustible or noncombustible materials and those with a higher specific weight in a ...
01/09/2007
6767382Aluminium processing apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross
An apparatus for separating molten aluminium from a mixture of molten aluminium and aluminium dross includes a table for supporting an insulated crucible containing the mixture of molten aluminium and aluminium dross. A rotatable frame supports a plurality of tines ...
07/27/2004
6572675Method of operation of tilting rotary furnace system for recovery of non-ferrous metals from scrap or dross
A furnace system for recovering a non-ferrous metal from a charge of material containing the metal. The furnace system having a furnace chamber having walls defining a refractory chamber, the refractory chamber receiving the charge of material and the met...
06/03/2003
6454832Aluminium alloy semi-finished product manufacturing process using recycled raw materials
A manufacturing process for an intermediate product made of a predetermined 7000 series alloy having a target content of at least one first anti-recrystallizing element Z1 selected from the group consisting of Zr and Cr. This process enables effective rec...
09/24/2002
6296817Process for recycling waste aluminum dross
Disclosed is the recycling of aluminum dross. Aluminum dross is crushed into particles which are size-classified on the basis of 1 mm. The aluminum dross particles equal to or smaller than 1 mm in size are leached with an aqueous sodium hydroxide solution...
10/02/2001
6293990Aluminum alloy semi-finished product manufacturing process using recycled raw materials
A manufacturing process for an intermediate product made of a predetermined 7000 series alloy having a target content of at least one first anti-recrystallizing element Z1 selected from the group consisting of Zr and Cr. The product is produced by the ste...
09/25/2001
6217631Method and apparatus for treating molten aluminum
A method of heating a body of molten metal passing through a treatment bay. The method comprises providing a body of molten metal in a treatment bay and providing a baffle heater in the treatment bay to contact the molten metal. The baffle heater is compr...
04/17/2001
6159269Recovery of metal from dross and apparatus therefore
A process and an apparatus are disclosed for improved recovery of metal from dross, wherein a dross treating furnace is provided with a refractory wall or lining with good capacity to store and conduct heat. This furnace is preheated to a desired temperat...
12/12/2000
5900039Process for obtaining fluid light metal from a dispersed mixture
Process for obtaining a metallic phase from a dispersed mixture composed of one of (a) at least one metal selected from the group consisting of a light metal or an alloy of the at least one metal, and mixtures thereof, and (b) at least one non-metallic ph...
05/04/1999
5788918Dross press fume extraction system
A dross press is enclosed within a cabinet which is normally maintained at a negative pressure relative to ambient air pressure. The cabinet is provided with locked doors to prevent egress of explosive gases or pieces of metal. The cabinet is also equippe...
08/04/1998
5716426Methods of processing aluminium dross and aluminium dross residue into calcium aluminate
The processing of aluminium dross containing Al and Al2 O3 originating from aluminium production, comprises the steps of separating aluminium from the dross to produce a dross residue and reacting the dross residue at a temperature a...
02/10/1998
5669957Dross compression apparatus and method utilizing ribs on collector and head
A dross compression apparatus and method utilizes a dross compression head and a skim box or collector having mating ribs. The ribs may be any type of projection or shape of the head and skim box sufficient to form grooves in both sides of the dross which...
09/23/1997
5613996Process for treatment of reactive fines
A process for treatment of aluminum dross residue (NMP) having available aluminum nitride (AlN) and/or free aluminum (Al) and/or aluminum chlorides (AlCl3) having a particle size within the range of 0.3 to 300 microns, i.e., "fines" to produce ...
03/25/1997
5599379Apparatus and method for recovering non-ferrous metals from hot dross
Method and apparatus for recovering free aluminum from a metal bearing dross containing free aluminum metal and oxides of the metal. Hot dross is collected from a hot dross source into a vessel, and the vessel is placed into a sealable storage container. ...
02/04/1997
5563903Aluminum melting with reduced dross formation
An aluminum melting method wherein an atmosphere above the aluminum charge is comprised of two strata, a lower strata covering the aluminum charge comprised of a non-oxidizing gas and an upper strata comprised of combustion gases from one or more burners....
10/08/1996
5540752Method for recovery of non-ferrous metals from scrap and dross
A process and apparatus are disclosed for recovering a non-ferrous metal, preferably aluminum and aluminum alloys, in molten coherent form from a charge of material to be processed containing the metal. The charge is introduced into a sealable furnace whi...
07/30/1996
5527380Recovery of non-ferrous metals from dross
A method for recovering non-ferrous metal from a dross that includes the non-ferrous metal includes introducing the dross into a rotary furnace or rotatable converter. The furnace or converter has a refractory lining. Oxygen and a fossil fuel are supplied...
06/18/1996
5525141Process for the treatment of light metals
Process and apparatus for the treatment of light metals. The present invention pertains to a process for the treatment of mixtures of at least one light metal and at least one nonmetallic phase, formed of at least one oxide of a light metal, particularly ...
06/11/1996
5500033Melt heating method
A method of heating a melt containing an oxidizable substance in which a fuel is burned with an oxidant by projecting fuel oxidant jets over the melt. The fuel and the oxidant jets have a fuel jet momentum and an oxidant jet momentum, respectively. The ox...
03/19/1996
5470376Recovery of non-ferrous metals from dross
A process of recovering a non-ferrous metal from a dross containing the same. The process involves introducing into a rotary furnace the dross and a fluoride compound which becomes substantially molten above the melting point of the metal, heating the dro...
11/28/1995
5447548Process for recovery of free aluminum from aluminum dross or aluminum scrap using plasma energy with oxygen second stage treatment
A process for recovering free aluminum and aluminum compounds such as aluminum oxide from aluminum dross and aluminum scrap in a furnace heated with a plasma arc torch followed by oxygen injection after significant aluminum separation has occurred is desc...
09/05/1995
5439501Method of processing hot dross of aluminum resulting from an aluminum smelting process and a deoxidant obtained from said method
A method of processing hot dross resulting from an aluminum smelting process is carried out as follows. First, the hot dross is filled in a hollow container which has a porous bottom plate closing a bottom opening of the container. A solid plate is placed...
08/08/1995
5421856Process to reduce dross in molten aluminum
Dross formation in the aluminum melting and/or refining is avoided partially or totally by the method of this invention. The method is useful in unmodified open top furnaces. The elimination or reduction of dross formation is carried out throughout the bo...
06/06/1995
5421850Method and apparatus for recovery of non-ferrous metals from dross
A method and apparatus for treating non-ferrous metal drosses in order to recover the free metal contained therein. The dross is heated by a plasma torch in a rotary furnace, preferably to a temperature above 800° C. The plasma heating and rotary motion ...
06/06/1995
5407459Process for the preparation of calcium aluminates from aluminum dross residues
The present invention is concerned with a process for the preparation of sintered calcium aluminates that can generally be used as a protective cover for liquid metals, and particularly steel, and the process comprising the steps of mixing calcium oxide, ...
04/18/1995
5405427Salt flux for addition to molten metal adapted for removing constituents therefrom and methods of using
Disclosed is an improved flux comprising 32 to 61 wt. % sodium chloride, 2 to 15 wt. % magnesium chloride, 2 to 12 wt. % carbon, the remainder potassium chloride....
04/11/1995
5401294Method to separate metallic phases from other phases containing same and device to carry out the method
The invention concerns a process for de-metallization of metal-containing residues, dross, slags and the like that accumulate during thermal processes in metallurgical and scrap metal reclamation processes which consists of that the metal/non-metal phase ...
03/28/1995
5397104Dross compression apparatus
A dross compression apparatus utilizes a substantially hemispheric shaped receptacle in a dross collector and a complementing compression head which is provided with ribs to form grooves in the material formed between the head and the receptacle. The mate...
03/14/1995
5330618Process for separating dissolved solids from a liquid using an anti-solvent and multiple effect evaporators
A process and system for treating aluminum salt cake containing water soluble halide salts by contacting the salt cake with water to dissolve water soluble halide salts forming a saturated brine solution. Transporting a portion of about 25% of the saturat...
07/19/1994
5308375Process for recovery of free aluminum from aluminum dross or aluminum scrap using plasma energy with oxygen second stage treatment
A process for recovering free aluminum and aluminum compounds such as aluminum oxide from aluminum dross and aluminum scrap in a furnace heated with a plasma arc torch followed by oxygen injection after significant aluminum separation has occurred is desc...
05/03/1994
5290535Process for recycling saltcake
Saltcake generated by the aluminum industry is completely recycled through a process that simultaneously liberates the contained aluminum metal and dissolves the soluble salt fluxes to recover aluminum metal, aluminum oxide and salt fluxes by temperature ...
03/01/1994
5286274Method for treatment of potlining residue from primary aluminium smelters
This is a method for treatment of spent potlining from aluminium reduction cells including the refractory material in order to transfer the spent potlining to a form in which it can be used as a filler or as a raw material. The spent potlining is crushed ...
02/15/1994
5259867Method of treating dross materials in metallurgical melting processes
In a metallurgical process, a unique materials conservation and environmental process for treating cross materials at the site of a melting chamber by applying a preselected fines suppressing agent to stages of the dross materials promptly after removal f...
11/09/1993
5242486Coolant for aluminum dross
The invention relates to a coolant of aluminium dross, which used in separating and recovering metallic aluminium involved in the dross which is formed when aluminium and aluminium alloys are molten. The coolant consists of 4-60% by weight of a crabonaceo...
09/07/1993
5135565Recovery of aluminum from dross using the plasma torch
A process and apparatus for recovering aluminum from a solid dross containing the same comprising: (a) continuously introducing the dross and lime flux into an inert gas DC transferred arc plasma torch furnace, (b) heating the mixture to above the slag me...
08/04/1992
5032177Method and apparatus for the removal of slag from metallic melt bath in a melting furnace
By means of an electromagnetic stirrer there is produced in the melt within the melt chamber of the melting furnace a turbulent flow or pair of turbulent flows working in opposite directions and each having a substantially vertical turbulent flow axis. By...
07/16/1991
5013356Process for the processing of slag from aluminium scrap and waste melting, recovery of components thereof and treatment of gasses generated
The present invention relates to a process and a plant for the processing of saline slag from the melting of aluminium scrap and waste with a saline flux in which the salts constituting the flux are recovered and other components of the slag are separated...
05/07/1991
4983216Aluminum scrap melting
Disclosed is a method of melting aluminum scrap and removing skim therefrom having reduced amounts of aluminum contained therein. Melted scrap and salt is added to a body of molten aluminum in a skim removal bay and a layer containing salt and skim is col...
01/08/1991
4927459Treatment of aluminum reduction cell linings combined with use in aluminum scrap reclamation
Spent potlinings from aluminum reduction cells are fed to an aluminum reclamation furnace as a partial replacement for or supplement to the molten salt flux used in the reclamation process. This rids the spent potlinings of materials which would leach int...
05/22/1990
4772320Metal recovery from dross
In a system for treating and managing hot aluminum dross, the dross is compacted and delivered by a pair of "squeeze" rolls in a continuous semi-solid sheet, readily broken up for further treatment or disposal. The rolls may be cooled or heated as require...
09/20/1988
1    
 
Sign InRegister
Username  
Password   
forgot password?