Matches 201 - 250 out of 365 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
4690201 Lost foam mold pattern and associated method  
A foam mold pattern assembly comprising a pattern having opposite first and second ends, a first projection connected to the pattern for facilitating suspension of the foam mold pattern assembly...
4685504 Foundry sand feeding apparatus  
According to the invention, a sand distribution structure is interposed between a sand supply hopper and a flask having an associated pattern. The sand distribution structure comprises juxtaposed,...
4682643 Method of producing molded parts and casting pattern therefor  
An investment casting process employs a low-cost plastic pattern manufactured by machining. A mold is cast around the plastic pattern following which the pattern is removed from the mold to leave a...
4673023 Multipart lost foam pattern and method of making same  
A lost foam pattern including a first lost foam piece having a tapered inner surface defining an indentation, and a second lost foam piece received in the indentation and having a tapered outer...
4664172 Method for production of investment shell mold for grain-oriented casting of super alloy  
An investment shell mold of a texture having a stucco material dispersed in mullite useful for grain-oriented casting of a Ni-base super alloy is produced by preparing a slurry having alumina...
4657063 Foam pattern for casting an air cooled cylinder head  
A method of fabricating a foam mold pattern for forming an air cooled cylinder head in a lost foam casting process, the cylinder head including a cooling fin, the method comprising the steps of:...
4655276 Method of investment casting employing microwave susceptible material  
A method of making an investment shell mold in such a way that the shell is protected from cracking on simultaneous firing and removal of the pattern. The method includes application of...
4651799 Vented casting molds and process of making the same  
The mold body contains a cavity and at least one vent passage for venting gas from the cavity through the body. The vent passage has a portion of predetermined regular shape extending part-way...
4651801 Wax master tree for precision casting  
An improved wax master tree used for precision casting is provided. The tree comprises a sprue rod and a plurality of wax masters attached to the sprue rod by fusing. In the improved wax master...
4640333 Foam pattern assembly for use in evaporative casting process  
The pattern assembly is comprised of: (a) mating first and second clamshell-shaped foam members, the first and second foam members meeting along exteriorly exposed joint margins defined by mateable...
4633929 Method for producing metal castings  
Metal castings having reduced residual carbon ash and surface flaws are produced by an evaporative pattern casting process, in which an organic foam pattern is vaporized upon contact with a molten...
4632169 Two cycle cylinder block foam pattern  
A foam mold pattern for making an engine block in a lost foam casting process, the pattern comprising an upper portion including a cylinder bore upper portion, and an upper portion of an exhaust...
4617977 Ceramic casting mould and a method for its manufacture  
The present invention provides a method for manufacturing a thin-walled ceramic casting mould which is particularly suitable for casting directionally solidified articles in which rapid cooling of...
4616689 Foundry moulding process and mould using a pattern of gasifiable material surrounded by sand free of a binding agent for low pressure precision casting  
A foundry mould for low pressure moulding of metal parts is constructed of a mould chamber (14) with a bottom surface (17) having an opening (31) through which molten casting metal can ascend. A...
4612968 Method of casting using expendable patterns  
A method of casting a metal article in a mould box comprises locating an expendable pattern in the box, the pattern having a gas permeable refractory coating thereon, placing and compacting...
4611371 Method for manufacturing an eyeglass-frame  
As a substitute for brazing conventionally employed for attaching curved pad holders to rims of an eyeglass-frame, casting is used for formation of an eyeglass-frame including, in one body with its...
4609028 Evaporative pattern assembly for use in sand casting  
An evaporative pattern assembly for use in sand casting and comprising a pattern fabricated from evaporative material and including portions forming a cavity, and a member for preventing distortion...
4602667 Method for making investment casting molds  
Binder, filler, and refractory compositions and methods of using and making these compositions are disclosed. The binder composition comprises colloidal silica, a liquid material containing Si--OH...
4600546 Process for the production of an implant as a bone substitute  
This invention relates to a process for the production of an implant of metal or plastics material having an open-celled structure as a bone substitute. The process uses a connectively open-celled...
4600046 Molding apparatus and process including sand compaction system  
A molding apparatus comprising a rigid mold flask adapted to contain a mold pattern and sand, and when containing sand, having a combined center of gravity, a support for resiliently supporting the...
4593739 Method of and apparatus for packing sand around a mold pattern by vibration  
A mold pattern is held in position in a mold flask in an unconnected relation to the mold flask. Sand is supplied to the mold flask to surround the mold pattern while the mold flask is vibrated to...
4574451 Method for producing an article with a fluid passage  
A fluid-cooled article, such as a turbomachinery blading member, is provided with a fluid passage by a method of depositing a first material on a work surface of a mandrel by low pressure plasma...
4557316 Method for manufacture of investment shell mold suitable for casting grain-oriented super alloy  
A method for the manufacture of an investment shell mold is disclosed which comprises applying to the surface of a wax pattern at least one layer of slurry formed by dissolving in an organic...
4557312 Process of fabricating metal ornaments  
A process of fabricating metal ornaments, such as, for example, jewelry pieces, is disclosed. The inventive process includes the steps of producing a design image of an object or subject, to be...
4544013 Method of reclaiming sand used in evaporative casting process  
The invention is a method of reclaiming sand used in a method of casting a metal having a liquidus temperature below 2000° F., the casting method using a vaporizable pattern set within a mold...
4542780 Wax profiles for dental bridges  
A wax profile for making a tooth for a dental bridge, the tooth having a cast gold alloy skeleton and porcelain coating, the skeleton being cast in a negative mold made from the wax profile and...
4535831 Pattern for producing a mold and method for manufacture of the pattern  
A method of producing a pattern for use in the manufacture of a mold which is adapted to be cured by microwave irradiation. The method comprises forming a rolled-over male pattern, forming a...
4520858 Chill-enhanced lost foam casting process  
A lost foam metal casting process employs a chill member to reduce porosity within a region of a product casting. The chill is adhesively bonded to a fugitive pattern prior to jointly embedding...
4509579 Apparatus for fluidizing a particulate bed within a flask  
A fluidization apparatus is adapted for use with a flask containing a particulate bed, for example, a foundry flask used in lost foam metal casting. The apparatus comprises a reciprocal plenum box...
4509247 MIG Welding gun  
A method of manufacturing the outer housing of a metal inert gas welding gun comprising an investment cast process which eliminates the necessity of providing a separately machined threaded end for...
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...
4482000 Variable-permeability pattern coating for lost foam casting  
A vaporizable pattern for casting reduced porosity metal by a lost foam process is coated with a thermally insulative, predominantly refractory particulate layer comprising polymeric particles....
4479527 Method for facilitating the manufacture of a bondable metallic surface  
A pad eliminatable by heat prior to casting has a patterned surface and a non-porous backing. The pad is sized and shaped into at least part of the appliance and the patterned surface is conformed...
4454906 Vibratory method for packing foundry sand into a pattern prior to the pouring of molten metal  
The invention relates to the casting of molten metal where a pattern embedded in sand is used to determine the shape into which the molten metal is formed. To ensure that the foundry sand fully...
4448235 Variable-permeability, two-layer pattern coating for lost foam casting  
A vaporizable pattern for casting reduced porosity metal by a lost foam process is coated first with a thermally insulative, refractory layer characterized by a relatively high gas permeability and...
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...
RE31488 Casting methods with composite molded core assembly  
A core assembly is formed by fabricating a first core, molding a destructible plastic layer around the first core, and molding a second core around the plastic layer. The plastic layer is...
4423646 Process for producing a rotary drilling bit  
A rotary drill bit for drilling wells in earth formations is produced by a casting technique using a plastic foam, combustible casting form. The bit includes a tapered drill body having a plurality...
4421153 Method of making an aerofoil member for a gas turbine engine  
A blade or vane structure for a gas turbine engine comprises a hollow aerofoil member and a cooling air entry tube within the hollow aerofoil member, the aerofoil and the tube comprising a unitary...
4397080 Process for preparation of support tooling for extrusion dies  
A process for preparation of support tooling for extruding dies is described in which a substantial reduction in machining is experienced by utilizing a pattern destroying precision casting system...
4396054 Method for making a distortion-free multiple unit prosthesis  
Process for making a multiple unit fixed prosthesis. A conventionally prepared wax bridge is separated into a plurality of segments, a plurality of brace members are partially interconnected...
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...
4347888 Method of making forms for investment casting and products produced therefrom  
A method of making a form of a desired shape, for use in an investment casting technique which comprises forming a first sheet of formable material to a shape which approximates to the desired...
4318437 Metal casting system  
A metal casting system including novel process and apparatus wherein the shape of the casting is defined by a thin thermal degrading film supported by a particulate bed. A pattern having the shape...
4315537 Method of making a mold  
An improved method is utilized to make a mold for a cast product having a plurality of spaced apart surfaces. Although the method could be used for forming molds for different products, the method...
4314790 Method of and device for shipping hot metal goods  
A method of and a device for the shipping of hot metal goods, such as hot steel ingots and slabs, in which the ingots or slabs are lowered into a container in which a granular insulating material,...
4312398 Method of forming fiber and metal composite structures  
A method of forming ceramic fiber and metal composite structures is disclosed. The method is particularly useful in forming such structures having a complex shape. Fibers are coated with an...
4291739 Method of manufacturing a hollow casting mold  
A method of manufacturing a casting mold includes the steps of forming a casting mold body of a flowable binder-free backfilling material, stabilizing the casting mold body by negative pressure,...
4289191 Injection molding thermoplastic patterns having ceramic cores  
Disclosed is a method and apparatus for fabricating thermoplastic patterns for investment casting. The patterns define hollow objects and have contained within a very precisely located ceramic...
4285385 Method for the production of heat exchangers  
A method of producing a heat exchanger in which a fin block of porous metal and fin plates connected to the fin block are unitarily secured to a serpentine heat-transmitting pipe. A plurality of...
Matches 201 - 250 out of 365 < 1 2 3 4 5 6 7 8 >