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Patent No. 6650315

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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.

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Class 205/392 - Utilizing specific method or means to feed or replenish electrolyte or bath material


Subclass of Class 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
Definition: Subject matter wherein a specific method or means to feed
No. of patents: 73
Last issue date: 01/03/2012


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NumberTitleIssue Date
8088269System and method for measuring alumina qualities and communicating the same
System and method for measuring alumina qualities and communicating the same are disclosed. In one example, a system includes an aluminum electrolysis cell, a feeder configured to supply a feed stock using a feed stream to the aluminum electrolysis cell, and a measu...
01/03/2012
8052859Aluminum production process control
The method of process control is for a Hall-Héroult process of aluminum production from alumina ore in an industrial potline. The method includes measuring an array of sampled potline data including a plurality of cell voltages (V) and a plurality of line amperages...
11/08/2011
7879220Method and means for improving electrolysis cell operation
The present invention relates to a method of improving the current efficiency (CE) in an electrolytic aluminum production cell with an electrolytic bath, at least one anode and at least one cathode, and passing current between said anode and said cathode through sai...
02/01/2011
7504016Method and system for controlling addition of powdery materials into the bath of an electrolysis cell for the production of aluminium
This invention relates to a method for controlling additions of powder materials into an electrolytic cell designed for the production of aluminium by fused bath electrolysis. The method according to the invention, which can easily be automated, can be used to maint...
03/17/2009
7378009Method of controlling an aluminum cell with variable alumina dissolution rate
A method of controlling an aluminum reduction cell including the following steps: maintaining alumina concentration within preset limits by alternating base, underfeed and overfeed modes; measuring cell voltage and potline amperage...
05/27/2008
7255783Use of infrared imaging to reduce energy consumption and fluoride consumption
Operations in an electrolytic cell for producing aluminum are controlled by sensing infrared radiation on an outer surface of a cell chamber to determine an actual temperature. When the actual temperature is greater than a target temperature, a crust hole is repaire...
08/14/2007
7192511Method for regulating an electrolytic cell
The invention relates to a regulation method for an electrolytic cell for the production of aluminium by means of reduction of alumina dissolved in a molten cryolite bath, wherein a solidified bath ridge is formed on the internal walls of the pot, a quantity B, refe...
03/20/2007
7175749Method and device for detecting anode effects of an electrolytic cell for aluminum production
Process for early detection of an anode effect in an aluminum production cell based on molten salt electrolysis. The cell comprises at least one anode, at least one cathode and cathode connecting conductors and anode connecting conductors. The process comprises:
02/13/2007
7135104Method for regulating an electrolysis cell
The invention relates to a regulation method for an electrolytic cell for the production of aluminium by means of reduction of alumina dissolved in a molten cryolite bath and comprises the addition, in the electrolyte bath, during pre-determined time intervals p ref...
11/14/2006
7112269Measuring duct offgas temperatures to improve electrolytic cell energy efficiency
Operations in a cell for electrolytic production of aluminum are controlled by establishing a standard rate of addition of aluminum fluoride to a molten electrolyte covered by a crust; establishing a target temperature for a duct carrying offgas from a chamber conta...
09/26/2006
7048475System for distribution of pulverulent material with controlled gravimetric flow rates
Method for conveying a pulverulent material making it possible to divide said pulverulent material, from a single storage capacity (10), between several conveyors (50) with a controlled flow rate in each of said conveyors, characterized in that said st...
05/23/2006
6866767Process for controlling anode effects during the production of aluminum
An improved method is described for adding alumina to a Söderberg or pre-bake type electrolytic cell fed by schedule crust breaking. Instead of adding the full amount of alumina required following each crust breaking, as is traditional, the standard dose of alumina...
03/15/2005
6866768Electrolytic cell for production of aluminum from alumina
Electrolysis of alumina dissolved in a molten salt electrolyte employing inert anode and cathodes, the anode having a box shape with slots for the cathodes. ...
03/15/2005
6855241Process and apparatus for smelting aluminum
An apparatus for the smelting of aluminum includes a melting furnace that is separate from and free of permanent interconnection with an electrolytic cell. The melting furnace is preferably an induction melting furnace that is designed for optimum heating and interm...
02/15/2005
6797148Drained-cathode aluminium electrowinning cell with improved electrolyte circulation
A drained-cathode cell for the electrowinning of aluminium comprises one or more anodes (14) suspended over one or more cathodes (16). The or each anode (14) and cathode (16) respectively have a sloped V-shaped active anode surface (22...
09/28/2004
6783656Low temperature operating cell for the electrowinning of aluminium
A cell for the electrowinning of aluminum using anodes (10) made from a alloy of iron with nickel and/or cobalt is arranged to produce aluminum of low contamination and of commercial high grade quality. The cell comprises a cathode (20) of drained conf...
08/31/2004
6656340Aluminium production cell design
A cell of advanced design for the production of aluminium by the electrolysis of an aluminium compound dissolved in a molten electrolyte, has a cathode (30) of drained configuration, and at least one non-carbon anode (10) facing the cathode both covered b...
12/02/2003
6652725Electrodeposition apparatus for producing electrodeposited copper foil and electrodeposited copper foil produced by the apparatus
An object of the invention is to provide a method for continuously producing electrodeposited copper foil while thiourea-decomposed products remaining in copper electrolyte are removed through activated carbon treatment. Another object is to provide high-...
11/25/2003
6572757Method for producing aluminum and electrolytic cell with improved alumina feed device
An electrolytic cell (40) for the electrowinning of aluminium comprises a plurality of anodes (60) immersed in a molten electrolyte (50), each anode (60) having an oxygen-evolving active surface of open structure facing and spaced by an inter-electrode ga...
06/03/2003
6521116Cells for the electrowinning of aluminium having dimensionally stable metal-based anodes
A cell for the electrowinning of aluminium comprising one or more anodes (10), each having a metal-based anode substrate, for instance comprising a metal core (11) covered with an metal layer 12, an oxygen barrier layer (13), one or more intermediate laye...
02/18/2003
6497807Electrolyte treatment for aluminum reduction
A method of treating an electrolyte for use in the electrolytic reduction of alumina to aluminum employing an anode and a cathode, the alumina dissolved in the electrolyte, the treating improving wetting of the cathode with molten aluminum during electrol...
12/24/2002
6485628Bath for electrolytic reduction of alumina and method therefor
An electrolytic bath for use during the electrolytic reduction of alumina to aluminum. The bath comprises a molten electrolyte having the following ingredients: (a) AlF3 and at least one salt selected from the group consisting of NaF, KF, and L...
11/26/2002
6478945Method for producing highly pure aluminum primary base metal
The present invention provides a method of producing a highly pure aluminum primary base metal having a purity of at least 99.95 wt % (3N5), or a still higher purity close to the 4N that is a purity value of a secondary refined base metal. Alumina, the Si...
11/12/2002
6440294Crust hole repair for electrolytic cells
A process for repairing a hole in the crust of an electrolytic cell. The hole is repaired by covering it with a receptacle containing solid particles. The receptacle comprises a polymeric material. More preferably, the receptacle comprises a cellulosic ma...
08/27/2002
6428675Low temperature aluminum production
A process for electrolyzing Al2 O3 to produce aluminum in a low temperature bath containing AlCl3 and an alkali metal chloride. The bath is maintained at a temperature of less than about 300 ° C. Solid aluminum is produce...
08/06/2002
6423195Inert anode containing oxides of nickel, iron and zinc useful for the electrolytic production of metals
An inert anode for the electrolytic production of metals such as aluminum is disclosed. The inert anode includes a ceramic oxide material preferably made from NiO, Fe2 O3 and ZnO. The inert anode composition may comprise the followin...
07/23/2002
6413406Electrocatalytically active non-carbon metal-based anodes for aluminium production cells
A non-carbon, metal-based high temperature resistant anode of a cell for the production of aluminum has a highly conductive metal-based substrate coated with one or more electrically conductive adherent intermediate protective layers and an outer layer wh...
07/02/2002
6402927Distribution of alumina-rich electrolyte in aluminum electrowinning cells
The invention relates to a method of producing aluminum in an electrolytic cell, particularly in a drained cell, such cell comprising a cathode (20) and facing anodes (10), each anode (10) being spaced apart in its operative position from the cathode (20)...
06/11/2002
6319388Method of managing the operation of a plant for the production of aluminium by igneous electrolysis and aluminium production plant for implementing this method
This method of managing the operation of a plant for the production of aluminium by igneous electrolysis, of the type having a set (2, 3) of two electrolysis tankrooms, each having a series of tanks, the tankrooms being mutually parallel and symmetrical w...
11/20/2001
6221233Aluminum production utilizing positively charged alumina
The smelting of aluminum from alumina in the Hall-Heroult process can be dramatically improved by lowering power consumption and in the use of carbon free anodes by using a feed of positively charged alumina. Laboratory experiments have shown that the app...
04/24/2001
6103090Electrocatalytically active non-carbon metal-based anodes for aluminium production cells
A non-carbon, metal-based high temperature resistant anode of a cell for the production of aluminium has a metal-based substrate coated with one or more electrically conductive adherent applied layers, at least one electrically conductive layer being elec...
08/15/2000
6071096Pneumatic cylinder, in particular for actuating fume extraction valves in fume and heat extraction plants
A pneumatic cylinder for actuating fume extraction valves in fume and heat extraction plants has a piston (2) that may be actuated from both sides with at least one working surface and that can be made to slide by pressurised air in a cylinder (1) with at...
06/06/2000
6033550Process for controlling the alumina content of the bath in electrolysis cells for aluminum production
A process for control of the alumina content of the bath in a cell for production of aluminum by electrolysis of alumina dissolved in a molten cryolite-base salt, consisting of alternation of phases of alumina underfeeding and phases of alumina overfeedin...
03/07/2000
5968334Process for recovering CF4 and C2 F6 from vent gases of an aluminum production cell
A process for recovering at least one of CF4 and C2 F6 from a vent gas from an aluminum electrolysis cell. The process includes the steps of: (a) removing inorganic fluorides from a vent gas comprising inorganic fluorides ...
10/19/1999
5961812Process and gaseous effluent-collection device for changing spent anodes of pots for electrolysis of aluminum
A process for changing spent anodes while recovering the majority of the gaseous compounds evolved by the spent anodes and by the bath crust removed from the electrolytic pots during the cooling phase uses an effluent-collection device for electrolytic po...
10/05/1999
5914023Actuator
An actuator assembly comprises a piston within an actuating cylinder, and a valve for controlling the flow of actuating fluid to the first side of the piston. When the valve is actuated the flow of fluid to the first side of the piston is stopped and the ...
06/22/1999
5779875Method for feeding loose material into an electrolyzer for production of aluminum
The method includes the following step of forming at least one material input zone on the surface of an electrolyte, disposing a working tool in the input zone to push the material into the melt of the electrolyte, imparting mechanical oscillations and tr...
07/14/1998
5759382Injection of powdered material into electrolysis cells
In an electrolysis cell wherein powdered material are added to a bath of molten electrolyte, the anode is provided with a duct through which the powdered material may be fed to the electrolyte. Simultaneously, a gas which is preferably inert, is also fed ...
06/02/1998
5618403Maintaining protective surfaces on carbon cathodes in aluminium electrowinning cells
A cell for the electrowinning of aluminium by the electrolysis of alumina dissolved in a molten fluoride-based electrolyte comprises a cathode composed of a carbon body having an aluminium resistant aluminium-wettable surface layer containing particulate ...
04/08/1997
5476574Continuous alumina feeder
A continuous feeder for feeding alumina to an aluminum reduction cell is positioned over a discharge outlet (114) of an alumina hopper. The feeder includes a flow control valve member (140) which is connected to a positioning means (132) by rod (142). The...
12/19/1995
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