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

Icon_funbox Did You Know...

...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...

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 75/407 - Filtering vaporous or liquid metal


Subclass of Class 75 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
Definition: Process in which vaporous or liquid metal passes through
No. of patents: 78
Last issue date: 04/24/2012


1    
NumberTitleIssue Date
8163061Method of copper precipitation in lead-free solder, granulation and separation of (CuX)Sncompounds and recovery of tin
A granulation method for granulating a (CuX)6Sn5 compound by passing a composition comprising a (CuX)6Sn5 compound and tin through a multi-perforated plate to granulate the (CuX)6Sn5 compound wherein ...
04/24/2012
7666248Method of priming filter for molten metal
A method is described for priming an in-line molten metal filtration unit having a porous ceramic or refractory filter mounted substantially horizontally in a filter box. This filter box has an inlet for molten metal and an outlet for molten metal, the outlet being ...
02/23/2010
7594950Method and device for removing slag
A method for removing slag comprises: preparing a filter 21 of heat-resistant porous ceramics, which passes a molten metal and catches slag, liquidizing metal material to form a molten metal A on which slag is floating; and traveling filter 21 along a ...
09/29/2009
7591873Method of copper precipitation in lead-free solder, granulation and separation of (CuX)Sncompounds and recovery of tin
The purpose of the present invention is to separate excess coppers leached out in a lead-free solder bath and recover tin with high efficiency. An element X for forming a (CuX)6Sn5 compound between copper and tin in molten lead-free solders is ...
09/22/2009
7425273Method and apparatus for processing a suspension
The invention relates to a method and apparatus for processing a suspension. According to the invention, a suspension is led into a washing column in which at least one filter element is present, so that near the filtering element, a packed bed of particles forms. T...
09/16/2008
7005112Thermal decomposer for waste
A thermal decomposition apparatus for wastes comprises: a heating chamber; an inlet port; at least one pair of electrodes provided within the heating chamber; a plurality of balls each taking the shape of a sphere whose primary ingredient is carbon, provided between...
02/28/2006
6932853Mechanical separation of volatile metals at high temperatures
A method of operating mechanical separation devices at high temperatures to separate various volatile metals, metal halides and metal oxides to produce high purity materials. ...
08/23/2005
6926066Magnesium die casting system
An improved magnesium die casting system incorporates filling of the shot sleeve from the underside and/or in-line re-melting of scrap magnesium using a re-melt furnace. A pump is used to transfer molten magnesium from a casting furnace to the shot sleeve through an...
08/09/2005
6793707Inoculation filter
A method for inoculating molten iron. The method comprises passing the molten iron through a filter assembly at an approach velocity of about 1 to about 60 cm/sec. The filter assembly comprises a filter element and an inoculation pellet in contact with the filter el...
09/21/2004
6468326Method for in-line filtering of a liquid metal and implementing device
A device for an in-line filtering (10) of a liquid metal, by using only a single installation, to obtain a very good filtering of any liquid metal whatever its melting point. The device comprising a treating chamber (11) made of refractory material and ha...
10/22/2002
6231639Modular filter for molten metal
A filter cartridge for a molten metal filtering system is provided with a modular construction in which the filter elements are adapted to be removably mounted to an end plate. The filter elements may be removed separately from the filter and replaced wit...
05/15/2001
6224648Method and device for separating metals and/or metal alloys of different melting points
In order to separate metals and/or metal alloys of different melting points from one another, a mixture of these metals and/or metal alloys is brought to a temperature at which the metal or the metal alloy of relatively low melting point is molten and the...
05/01/2001
6203593Ceramic filter and method of filtrating molten metal using the same
A ceramic filter arranged in a flow passage through which a molten metal is poured from a gate into a cavity of a casting mold. The ceramic filter has a ceramic main body of a three-dimensional reticulated skeleton structure having interconnected pores. T...
03/20/2001
6183533Method for removing mercury from lamp parts
A secondary lamp glass and/or parts processor for removing mercury from recycled lamp parts. The device includes a housing defining a heating chamber. A heater is connected to the heating chamber to heat the lamp glass and retort the mercury on the lamp p...
02/06/2001
6136063Process for separating hazardous metals from waste materials during vitrification
A process and system for separating metals from a waste composition and for producing a reusable glass product is disclosed. The process includes heating waste materials containing at least one glass forming substance to a temperature sufficient to volati...
10/24/2000
6086652Method and apparatus for initial purification of liquid metal heat exchange fluid
A method for removing oxides from a liquid metal heat exchange fluid following the initial startup of the heat exchange system fixes oxygen by locating an oxygen scavenging material in a drain tank. During initial fabrication and periods of maintenance me...
07/11/2000
6036743Method and apparatus for removing liquid salts from liquid metal
There is provided a method and apparatus for removing liquid salts from liquid metal utilizing at least one porous substrate which is wettable by liquid salts and is not wettable by liquid metal. The porous substrate is inserted into a container having a ...
03/14/2000
5972073Recovery of the components of group III-V material aqueous wastes
The present invention is directed to a method for separating the group III element component of a group III-V material from an aqueous waste containing a group III-V material to allow for their recovery and beneficial use. The method includes adjusting th...
10/26/1999
5961918Triangular cell metal filters
Honeycomb filters for the filtration of molten metal streams comprise a triangular cell cross-section in combination with specified cell density, cell wall thickness, filter open frontal area and geometric surface area, thereby offering improved filtratio...
10/05/1999
5914440Method and apparatus removal of solid particles from magnesium chloride electrolyte and molten magnesium by filtration
The present invention is concerned with a system for the filtration of molten material. The system is particularly useful for removing MgO impurities present in molten magnesium chloride electrolyte. The invention also comprises a method for removing soli...
06/22/1999
5894085Device for determining the purity of a metal alloy
The invention relates to apparatus for determining the purity of a metal alloy, and in particular an aluminum alloy. The apparatus comprises a shell (10) defining a receptacle (14) of generally tapering shape about a vertical axis having a bottom end defi...
04/13/1999
5891215Molten metal degassing and filtering methods
Molten metal (e.g., on its way to a continuous casting machine for forming a bar that will be rolled into a rod to be drawn down to wire) is filtered to remove particulate impurities by passing it through at least one and preferably several ceramic filter...
04/06/1999
5676731Method for filtering molten metal
An apparatus and method for filtering molten metal are disclosed. The apparatus utilizes a continuous filtering medium that is serially indexed into the metal filtering area. The apparatus may be used to filter ferrous and non-ferrous metals, and provides...
10/14/1997
5567223Method for dealing with mercury-containing waste
A method for dealing with mercury-containing waste including button-type batteries, wherein the waste is heated in a furnace while being agitated and in the presence of elementary selenium vapour in an amount sufficient to form mercury-selenide from essen...
10/22/1996
5556592Filter indexing apparatus for filtering molten metal
An apparatus and method for filtering molten metal are disclosed. The apparatus utilizes a continuous filtering medium that is serially indexed into the metal filtering area. The apparatus may be used to filter ferrous and non-ferrous metals, and provides...
09/17/1996
5518518Amorphous metal alloy and method of producing same
A process is described for producing amorphous metal alloys wherein impure ferrophosphorus slag, a by-product from a phosphorus-producing electric furnace, is used to supply phosphorus, chromium, vanadium and iron values to such alloys by treating the fer...
05/21/1996
5511766Filtration device
A vessel used for transfer of molten metal having a refractory filter wall with filters for removing inclusion from molten metal as it flows through the vessel. The refractory filter wall having passages sized according to a predetermined volume of molten...
04/30/1996
5427602Removal of suspended particles from molten metal
Molten metal containing suspended liquid and solid particles is passed preferably generally upwardly through a porous media so constructed and arranged such that the movement of the molten metal therethrough renders the suspended liquid particles gravity ...
06/27/1995
5388756Method and apparatus for removing contaminants from solder
A method and apparatus allow for continuous removal of contaminants from solder. The solder is pumped from a main solder pot to an auxiliary solder pot through a skimmer valve which is heated to keep the solder molten. In the auxiliary pot, the solder is ...
02/14/1995
5336294Removal of contaminants from molten metals
Particles or inclusions are removed from a molten alloy by contacting the molten alloy with a material selected from the group consisting of aluminium silicate, magnesium silicate, zirconium oxide or a mixture of alumina-calcia and alumina-magnesia....
08/09/1994
5336295Method for separation and removal of suspended liquid particles from molten metal and associated apparatus
Molten metal containing suspended liquid particles is passed preferably generally upwardly through a porous media so constructed and arranged such that the movement of the molten metal therethrough renders the suspended liquid particles gravity separable....
08/09/1994
5324487Vacuum-suction degassing apparatus
A melt is stored in a vessel. A lower half of a degassing member is immersed in the melt. The degassing member has a cylindrical form with the lower end closed, and the lower half section is made of a porous material which is permeable to gas and impermea...
06/28/1994
5322546Filtration of molten material
An apparatus for filtering molten material, such as a molten metal-ceramic particle mixture, includes a porous cloth filter located so that the mixture must pass through the cloth filter, and a mechanical filter shaker that prevents the accumulation of fi...
06/21/1994
5295667Tundish baffle with fluted openings
A tundish baffle having a plurality of fluted openings is provided. The fluted openings interrupt and remove inclusions from molten metal passing through the baffle, using a plurality of obstructive peaks and valleys located at the perimeters of the openi...
03/22/1994
5176742Method for filtering a molten solder bath
An apparatus for filtering a molten solder bath comprises, a housing having an entrance end and an exit end enclosing a channel means extending from the entrance end to a filter means adjacent the exit end. The channel means being configured for receiving...
01/05/1993
5122184Molten salt coalescence in molten aluminum
A method of treating molten aluminum containing a suspension of finely divided salt particles remaining after filtering molten aluminum is disclosed. The method comprises providing a body of molten aluminum containing the suspension of molten salt particl...
06/16/1992
5108496Method for the concentration of dusts in a cupola furnace with metal particles
A process for the econimic recovery of metallic fractions generated during operation of a cupola furnace comprises the steps of the separating filter dust containing metal fractions from an off-gas stream and recirculating the metal fraction back to the c...
04/28/1992
5090998Purification of metal melts with halogen gas generated in an electrolysis cell
The process for purifying a metal melt operates with an active gas introduced into the lower region thereof and consisting of an inert carrier gas and an active, gaseous halogen which are introduced under control into a vessel with the stagnant or flowing...
02/25/1992
5045111Filtration of molten ferrous metal
The filtration of molten ferrous metal is accomplished by providing a porous ceramic filter preferably comprising particles of alumina and partially stabilized zirconia that are spaced by interconnected cells to form circuitous and tortuous pathways throu...
09/03/1991
5028036Filter for molten ferrous metal
The filtration of molten ferrous metal is accomplished by providing a porous ceramic filter preferably comprising particles of alumina and partially stabilized zirconia that are spaced by interconnected cells to form circuitous and tortuous pathways throu...
07/02/1991
1    
 
Sign InRegister
Username  
Password   
forgot password?