Class 222/596 - Piston displacement

Subclass of Class 222 - Dispensing
Definition: Apparatus wherein the flow of molten metal is regulated
No. of patents: 25
Last issue date: 05/03/2011

Number	Title	Issue Date
7934627	Apparatus and method for high pressure extrusion with molten aluminum This invention discloses a molten metal supply system that can supply molten metal to a downstream process at a constant pressure and molten metal flow rate. The molten metal supply system includes a molten metal supply source, a plurality of injectors, and a plural...	05/03/2011
7347886	Method for introducing additives into fluids The method introduces additives into flowing gas, fluid or fluidized media in a pulsed high pressure manner. The nozzle needle of at least one nozzle is variable and highly precisely moved for the introduction by means of a device and in such a way that additive is ...	03/25/2008
7066236	Injection device for light metal injection molding machine An injection device for a light metal injection molding machine includes a melting device for melting light metal material into molten metal, plunger injection device for carrying out injection of molten metal using a plunger after the molten metal is metered into a...	06/27/2006
6866171	Method for introducing additives A method introduces additives into flowing or fluidised media. The spatially predetermined position of the additives in the flowing material, also called fluid bed, is obtained by controlling the pulsating injection, The introduction and exact dosing of additives, t...	03/15/2005
6739485	Dual action valve for molten metal applications A molten metal supply system (90) includes a plurality of injectors (100) each having an injector housing (102) and a reciprocating piston (104). A molten metal supply source (132) is in fluid communication with the housing (102...	05/25/2004
6712126	Continuous pressure molten metal supply system and method A molten metal supply system (90) includes a plurality of injectors (100) each having an injector housing (102) and a reciprocating piston (104). A molten metal supply source (132) is in fluid communication with the housing (102...	03/30/2004
6708752	Injector for molten metal supply system An injector (100) for a molten metal supply system includes an injector housing (102) configured to contain molten metal. A molten metal supply source (132) is in fluid communication with the housing (102). A piston (104) extends i...	03/23/2004
6536508	Continuous pressure molten metal supply system and method A molten metal supply system (90) includes a plurality of injectors (100) each having an injector housing (102) and a reciprocating piston (104). A molten metal supply source (132) is in fluid communication with the housing (102) of each of the injectors ...	03/25/2003
6505674	Injector for molten metal supply system An injector (100) for a molten metal supply system includes an injector housing (102) configured to contain molten metal. A molten metal supply source (132) is in fluid communication with the housing (102). A piston (104) extends into the housing (102). T...	01/14/2003
6273308	Automatic molten metal injector An automatic molten metal injector is provided which has no rotary frictional parts and is thus durable. The injector has a furnace holding a molten metal to a predetermined level and having a first port. A fixed sleeve is provided in the furnace so as to...	08/14/2001
6029737	Sealing and guiding device for the injection piston of a hot chamber pump for corrosive alloys A sealing and guiding device for the injection piston (3) of a hot chamber pump for corrosive alloys made up of a body (1) in which a chamber (6) and an injection cavity (2) therebelow are formed, wherein the piston (3) slides with a vertical reciprocatin...	02/29/2000
5558505	Molten metal pump support post and apparatus for removing it from a base A post for a molten metal pump having an end joined to a hole in a pump base. The post end includes a longitudinal bore opening at the end of the post and a port opening to the side of the post intersecting the bore. A plug is inserted into the bore above...	09/24/1996
5454423	Melt pumping apparatus and casting apparatus Apparatus for supplying melt from a melt-holding vessel to a casting machine comprises a ceramic melt pump casing or housing submersible in the melt. The casing includes a melt-pumping chamber with a melt inlet and melt outlet and a piston-receiving bore ...	10/03/1995
5092499	Delivery means for conveying a fixed charge of molten metal to a mold cavity of a die-casting machine This invention relates to a delivery assembly for delivering molten metal, to a die-casting machine. The system includes a die-casting liquid metal injector with an operative piston having a cylindrical shuttle valve within the assembly and providing for ...	03/03/1992
4977951	Apparatus for flow control of molten material by force detection The invention is directed to an apparatus and method for controlling the overflow of molten material from a receptacle for the purpose of achieving more uniform casting of the molten material. The apparatus and method utilize a force detector able to dete...	12/18/1990
4842171	Metering casting ladle A small, simple tool used to meter precise volumes of molten metal. It has been effectively utilized by the bullet caster to make expandable projectiles for hunting. This is accomplished by using the tool to meter a small volume of molten soft lead alloy ...	06/27/1989
4633930	Molten metal shot size and delivery mechanism for continuous casting operations There is described a device and process for delivering a predetermined quantity of molten metal to a metal casting operation via metal transfer members, such as thermally heated pipes under a positive head to the shot size and delivery system wherein the ...	01/06/1987
4595044	Die casting apparatus A die casting apparatus for pumping molten metal from a heated container to a nozzle communicating with an inlet of a mold including a charging mechanism for charging the apparatus with a predetermined amount of molten metal from the container and a multi...	06/17/1986
4593741	Die casting apparatus A die casting apparatus for pumping molten metal from a heated container to a nozzle communicating with an inlet of a mold including a charging mechanism for charging the apparatus with a predetermined amount of molten metal from the container and a multi...	06/10/1986
4546907	Method and system for removal of residual material from torpedo cars The removal of residual material from torpedo cars or the like is facilitated with use of apparatus including a generally open topped and a generally flat bottom heat resistant receiving container that permits molten pig iron to be removed from torpedo ca...	10/15/1985
4428413	High accuracy injector for die casting machines affording automatic melt level compensation A melting pot reservoir for non-ferrous metals and the like to be die cast in a cold chamber mold is provided with a pumping mechanism having a displacement plunger for metering out by displacement from the reservoir an exact volume of molten material int...	01/31/1984
4356940	Apparatus for dispensing measured amounts of molten metal Apparatus for dispensing measured amounts of molten metal to a metal casting operation which is automatic in operation and capable of delivering extremely accurately controlled amounts of metal to the casting operation. A positive displacement pump delive...	11/02/1982
4138043	Die casting machine with screw plugs in passages A gooseneck for a hot chamber die casting machine, which gooseneck includes a compression chamber having a pressure piston movably mounted therein with the compression chamber being in communication witha conical mouthpiece by way of transverse and vertic...	02/06/1979
4091970	Pump with porus ceramic tube In a pump for use in a hot chamber type die casting machine wherein corrosive molten metal particularly aluminum or alloys thereof is injected into a metal mould through a goose neck shaped passage, a porous ceramic tube having a porosity of 10 to 40% and...	05/30/1978
4078706	Molten metal metering and transfer device with displacement piston A molten metal metering and transfer device for use with a molding machine and a bath for holding and heating molten metal includes an elongate container which is supported in the bath with one end extending out of the bath and the other extending into th...	03/14/1978

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Class 222/596 - Piston displacement