Class 164/36 - Utilizing fluent extracting medium

Subclass of Class 164 - Metal founding
Definition: Process wherein a fluid medium is used to effect the liquid
No. of patents: 37
Last issue date: 04/19/2011

Number	Title	Issue Date
7926542	Low stress dewaxing system and method A system and method for dewaxing is provided. The system includes a ceramic shell mold having a wall. Water is present within the wall of the ceramic shell mold. A wax pattern assembly is located within the ceramic shell mold. A heat source is configured for heating...	04/19/2011
7338629	Integrated metal processing facility A system and method for forming and heat treating a metal casting are provided. ...	03/04/2008
7331374	Method and apparatus for assisting removal of sand moldings from castings Disclosed is a method for dislodging a mold from a casting formed within the mold. The mold may be removed from the casting by scoring the mold and applying a force sufficient to cause the mold to fracture and break into pieces. Additionally, the mold may be fractur...	02/19/2008
7290583	Methods and apparatus for heat treatment and sand removal for castings A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ...	11/06/2007
7275582	Methods and apparatus for heat treatment and sand removal for castings A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ...	10/02/2007
7258755	Integrated metal processing facility An integrated metal processing facility in which molten metal is poured into a series of molds at a pouring station to form metal castings, which are then transferred to a heat treatment line. Prior to introduction of the castings into a heat treatment station of th...	08/21/2007
7213562	Piston for a combustion engine and casting method for the production thereof The invention relates to a piston (1), which is comprised of an approximately circular cylindrical upper area (5) and of a lower area (6), having two hubs (7), which are set back toward the piston central axis (8) so that, in the u...	05/08/2007
7182121	Investment casting method and materials The present invention consists of an investment casting process that makes use of a frangible low-strength investment material mold and a mold removal solution to facilitate the removal the investment material mold from the casting. The mold removal solution is a li...	02/27/2007
7093341	Method of making an axial piston pump barrel with a cast high pressure collection cavity In an axial piston pump, a plurality of reciprocating pistons are at least partially positioned within a barrel. The barrel includes a ring shaped high pressure collection cavity that is positioned between the piston chambers and the outlet of the pump. In order to ...	08/22/2006
6910522	Methods and apparatus for heat treatment and sand removal for castings A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ...	06/28/2005
6901990	Method and system for processing castings A method and system of processing castings is provided in which one or more castings are deposited into a mobile furnace and moved from one station to another of a multi-station casting processing system. The interior of the mobile furnace is heated so as to maintai...	06/07/2005
6880618	Making subcutaneous flow-channels in foam patterns Method of making a subcutaneous melt flow-channel in the surface of a fugitive foam pattern used in lost-foam casting process. After a refractory skin has been formed on the surface of a foam pattern, a strip of the skin is treated so as to cause the foam underlying...	04/19/2005
6109333	Method of manufacturing electric motor housing frame and foam pattern therefor Housing frames for use in electromechanical machines may be advantageously produced using a novel pattern form in a lost foam casting process. The pattern form is made from a cast dissolvable material, and is configured to permit easy modification prior t...	08/29/2000
6029738	Core for use in die casting process A core for use in a die casting process has a wood fiber material as a main ingredient. The core can be disintegrated by exerting an external force subsequent to the die casting process. The core can also be disintegrated by applying a softening agent to ...	02/29/2000
5996682	Method of making a mold for metal casting A mold for a prototype metal casting or the like may advantageously be made by forming a casting pattern of adhesively bonded aggregate particles using a binder containing a principle constituent that is soluble in supercritical carbon dioxide; forming a ...	12/07/1999
5927373	Method of constructing fully dense metal molds and parts A method of constructing a fully dense metal part or a metal mold half for matin with another mold half to form a mold for casting multiple parts. Steps include placing a pattern having critical pattern surfaces in a flask having an open end. The critical...	07/27/1999
5893405	Triangular spoke sprue A mold assembly and sprue configuration for dental investment casting includes a ring shaped casing, a base and a cover all made of resilient plastic material and fictionally engaged with each other. The base includes a raised neck having a top surface wi...	04/13/1999
5832981	Construction and method of making heat-exchanging cast metal forming tool A one-piece cast metal heat-exchanging forming tool is prepared using an expendable porous preform that is cast in place within a cast metal forming tool. The expendable preform is thereafter extracted to leave behind a network of inter-connected pores an...	11/10/1998
5678624	Investment casting process An investment casting process which includes: attaching a gate to a pattern made of a plastic to form a pattern assembly; forming a mold by applying a plaster slurry on an outer surface of the pattern assembly; dissolving and removing the pattern assembly...	10/21/1997
5494096	Investment casting process An investment casting process utilizes a temporary mold which is formed by pouring a liquid over a positive pattern, and cooling the liquid until it solidifies. The positive pattern is removed, and a temporary pattern is formed by pouring another liquid i...	02/27/1996
5178673	Investment casting compositions and processes for the manufacture and use thereof This invention relates to investment casting compositions comprising (i) a refractory material, e.g., a ceramic material, and (ii) a soluble core material comprising one or more block polymers characterized by an ABCBA structure. This invention also relat...	01/12/1993
5089186	Process for core removal from molded products A method of removing a core from a molded product in which the core is formed of a particulate inert material, such as sand, bound together by a cured binder of a water soluble carbohydrate alone or mixed with a silicate is disclosed. The silicate is pref...	02/18/1992
4951732	Traverse drum manufacturing method An iron metal traverse drum having extremely thin walls is formed by instantaneously injecting a molten metal into a limited cavity of a mold having a form corresponding to the traverse drum in an oxygen-free atmosphere....	08/28/1990
4922991	Composite core assembly for metal casting Disclosed is a method for making metal castings wherein a composite core assembly is utilized. The composite core assembly comprises at least one casting core and one temporary core which are in intimate contact wherein the temporary core is removed prior...	05/08/1990
4812278	Process for preparing mold A cast article having a complicated shape of the appearance and the hollow can be obtained by forming a coating film on the surface of a pattern from a solvent-insoluble material to prepare a mold pattern, filling and hardening a molding material around t...	03/14/1989
4809761	Process for producing molds or cores for investment casting with reduced solvent loss In an investment casting process wherein molds or cores are prepared by forming them around a polymer pattern and then dissolving the pattern with a solvent, solvent losses can be reduced by heating the mold or core before contacting it with the solvent t...	03/07/1989
4808360	Method of producing mold for slip casting and method of molding slip casting A mold forming method in which a pattern is made of an organic material such as foamed polystyrene and at least a portion of the outer or inner surface of the mold pattern is covered by a thin coating, and surrounded with a mold material. The pattern is t...	02/28/1989
4556528	Mold and method for casting of fragile and complex shapes A method and apparatus for casting of fragile complex shapes by the formation of a two layer wax mold about a pattern of the shape to be cast. Thereafter, the pattern is removed from the mold and the outer layer of wax dissolved. The slip is then poured i...	12/03/1985
4499940	Casting process including making and using an elastomeric pattern A casting process for making and utilizing an elastomeric pattern that is coated with a non-metallic material to form a non-metallic shell mold and thereafter removed from the non-metallic shell mold by thermal decomposition or mechanical stripping....	02/19/1985
4481999	Method of forming a thin unbacked metal foil In a method of forming a thin (	11/13/1984
4462453	Casting methods with composite molded core assembly A core assembly for use in the casting of molten metal is formed by fabricating a first core, molding a plastic layer around the first core, and molding a second core around the plastic layer. The plastic layer is interlocked with an irregular outer surfa...	07/31/1984
4434835	Method of making a blade aerofoil for a gas turbine engine A method of making at least the aerofoil of a blade for a gas turbine engine in which the cooling air exit passages, whether at the trailing edge or in other parts of the aerofoil, are cast rather than machined subsequently. In the method a disposable pie...	03/06/1984
4384607	Method of manufacturing a blade or vane for a gas turbine engine A method of casting a blade or vane for a gas turbine engine which enables the production of more complex internal shapes than those which may be made by prior art methods. The method of the invention includes the steps of: making a temporary filler piece...	05/24/1983
4287932	Process for the precision molding of castings The material used for the production of cores for precision molds is a metal which is oxidizable at relatively low temperatures, i.e., below the solidification temperature of the melts for pouring, and which passes directly from the solid state to the gas...	09/08/1981
4235277	Method of forming three-dimensional network porous metallic structure having continuous internal cavity A three-dimensional network porous metallic structure is formed by filling the internal cavity of a mold, which has been prepared by making use of a three-dimensional network resin pattern, through driving the molten metal into the cavity by a pressure or...	11/25/1980
4108931	System of making molds for investment casting A system of making molds for investment casting in which the patterns are formed from, and the sprue form is coated with, polyethylene glycol having a molecular weight in the range of from approximately 1,300 to approximately 1,600, or its equivalent and ...	08/22/1978
4106548	Mass for production of cores and casting moulds Composition for production of cores and casting molds comprises 100 parts by weight of grain base, particularly quartz sand, 0.5 - 30 parts of alkal metal hydroxides, 1 - 40 parts of alkali metal carbonates, 1 - 15 parts of water as well as 0.2 - 10 of kn...	08/15/1978

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Class 164/36 - Utilizing fluent extracting medium