Matches 201 - 250 out of 334 < 1 2 3 4 5 6 7 >
Match Document Document Title
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...
4375233 Method of making a turbine blade having a metal core and a ceramic airfoil  
A finished ceramic airfoil is provided having within it a lining of thermal insulation and a fusible core having the desired contour of the metal core of the turbine blade. A casting mold is...
4356859 Lost wax feeder and runner systems  
A wax pattern and runner assembly includes resilient means whereby upon expansion of the wax upon removal from a ceramic mould the resilient means are compressed.
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...
4346750 Method of making dental bridge using a prefabricated non-precious pontic  
Disclosed is a prefabricated pontic framework formed of a non-precious material and method to be used in making dental bridges. The prefabricated pontic framework comprises a plurality of pontic...
4340107 Ceramic shell molding apparatus and methods  
Method and apparatus for producing ceramic shell molds characterized in that a plurality of pattern set-ups are arranged with their longitudinal axes transverse to an axis of rotation and are...
4326326 Method of making metal golf club head  
An integral stainless steel golf club head having a lead insert positioned directly behind the center of the intended striking surface of the club head is provided by using a "lost wax" procedure...
4296793 Refractory suspension for making foundry moulds  
A refractory suspension comprising (parts by weight): coke, 10-60; powdered metallic titanium or/and zirconium, +0.3-5.0; resol resins, 5-50; a hardener, such as an inorganic acid, 2-30; an organic...
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,...
4283831 Method of manufacturing and interlocking jewelry with precise preforms  
A method of casting metal so that the finished casting will hold a precise dimension in certain critical areas in order to enable the finished casting to be used as a frame for objects such as...
4250943 Method of manufacturing of a metallurgical mould  
A method of manufacturing a mold adapted to be used for casting bodies of fiber-reinforced composites. A model of the body to be cast is prepared and coated with a one-piece dense shell of...
4246954 Casting tree for tandem mold preparation and method of use thereof  
A casting tree for preparing a tandem mold suitable for sequential casting, within the same casting flask, of both white and yellow gold portions of jewelry items has a base with a main stem...
4240493 Shell investment casting process  
In a shell investment casting process a reusable pouring cup form is used. The shell mold is built up around both the pattern and the pouring cup form. When the pattern wax is removed, the pouring...
4220190 Method of making tooling  
A method of producing cast metal tooling, especially injection molds or dies, characterized by the steps of making a thin walled, investment cast shell which defines the functional cavity surface...
4213495 Investment casting method  
An improved method incorporating investment burn out at a predetermined ideal temperature. The investment encasing the wax-like model of the desired casting is placed in an oven preheated to an...
4211567 Process for the manufacture of refractory ceramic products  
A ceramic molding composition comprising an alcoholate of aluminum or a metal of the fourth sub-group of the Periodic System, a refractory metal oxide and a polyvalent alcohol, an improvement in...
4195683 Method of forming metal article having plurality of airfoils extending outwardly from a hub  
The present invention provides an improved method of forming a metal article having a plurality of airfoils which extend outwardly from a hub. The metal airfoils are formed separately from the hub....
4172867 Index pin and die spacer combination for dental model  
Method and apparatus for preparing a wax replica of a dental prosthesis is disclosed. The method of the invention is carried out by preparing a composite dental model which includes a base portion,...
4159204 Process for the manufacture of refractory ceramic products  
A ceramic molding composition comprising an alcoholate of aluminum or a metal of the fourth sub-group of the Periodic System, a refractory metal oxide and an agent selected from the group...
4147201 Method of manufacturing of a metallurgical mold  
A method of manufacturing a mold adapted to be used for casting bodies of ber-reinforced composites. A model of the body to be cast is prepared and coated with a one piece dense shell of refractory...
4133368 Single crystal casting mold and method for making same  
An improved mold for casting single crystal metallic articles is disclosed and comprises a ceramic investment mold having a main article cavity and having embedded at its lower end below the...
4111252 Method for making molds and mold components for casting single crystal metallic articles  
Disclosed is an improved method for making molds and mold components for use in casting single crystal articles. According to the improved method, a preformed and reusable replica of a mold growth...
4109699 Pattern assembly  
A pattern assembly for use in the lost pattern process of investment casting characterized by a center tree or sprue member including a central stem and a plurality of laterally projecting collars...
4078598 Strongback and method for positioning same  
The present invention provides means for the improved positioning of a strongback in a pattern mold for formation of expendable patterns thereon. Investment casting molds formed around the assembly...
4068702 Method for positioning a strongback  
The present invention provides a method for improved positioning of a strongback in a pattern mold for formation of expendable patterns thereon. Investment casting molds formed around the assembly...
4060120 Investment casting process of chromium-cobalt and/or nickel alloys  
An improved investment casting process for producing dental restorations, particularly a dental crown, comprising the steps of fixing a wax pattern onto a truncated cone in a metallic ring having a...
4044815 Precision investment casting mold, pattern assembly and method  
A precision investment casting ceramic mold of the self-casting type is made as a unitary mold by providing separately a pattern for a wax charge-holding assembly and a pattern for a wax article...
3996991 Investment casting method  
An investment casting method for making a desired casting of a relatively large size by the use of a mold of one-piece construction within close dimensions, which comprises preparing a thermally...
3991809 Method of molding finger rings  
A method of molding finger rings of the type having a hollowed-out interior portion, but whose exterior surfaces are identical to rings without such hollowed-out portion comprising securing a wax,...
3847202 MICROWAVE DEWAXING  
Method and apparatus for dewaxing a shell mold assembly containing a wax-type pattern therein which involves incorporating into the mold structure a material having a high loss factor in the...
3835913 INVESTMENT CASTING  
In investment casting part or all of the usual central wax sump and feeder is replaced by a refractory sleeve of heat-insulating or exothermic material, into which one or more wax patterns are fitted.
3815658 PROCESS FOR MAKING A METALLURGICALLY SLOW REACTING MOLD  
The mold is made by initially dipping a pattern into a mixture of pulverized magnesium carbonate and colloidal hydrolyzed silicic acid to form a number of layers thereon. The green mold is then...
3780787 METHOD OF VACUUM INVESTMENT CASTING  
A method of making castings according to the wax elimination method, comprising the steps of mounting a wax pattern on a holding pin member, placing the pattern in a substantially centered position...
3770044 METHOD OF DEWAXING SHELL MOLDS  
Refractory shell molds are made by a method including the steps of forming a shell investment mold over a wax pattern, freezing the mold and pattern to a temperature in the vicinity of about -100°...
3739835 PROCESS OF MAKING SHELL MOLDS  
Apparatus for the formation of single crystal articles by directionally solidified casting techniques which substantially eliminates the formation of heterogeneous discontinuities in the casting.
3695333 METHOD OF FABRICATING DENTAL CROWNS AND BRIDGES FROM GOLD  
The invention refers to a fabricating method for one-piece cast dental crowns, with controlled thickness, as well as for dental bridges consisting of crowns and the bridge body. To this end a...
3690366 PRODUCTION OF MOLDS  
A method of producing precision casting molds from a mixture of a comminuted refractory material, a lower alkyl silicate binder and a gelling accelerator. The proportion of lower alkyl silicate...
3675708 METHOD OF MAKING ACCURATE CORES  
Method for making shell-type cores which involves joining together a plurality of core patterns which when joined provide a hollow composite pattern, each of the patterns having ribs extending...
3672441 MOLD ASSEMBLY FOR VALVE LIFTERS  
A mold assembly for valve lifters defined by a plurality of identical mold sections arranged in abutting relation. The front and rear faces of each mold section have a plurality of horizontal mold...
3648760 PRECISION INVESTMENT CASTING APPARATUS  
A precision investment casting tree formed of relatively high-melting point plastic material surrounded by a lower melting point wax is built up to support a plurality of small wax patterns. The...
3610317 CRUCIBLE FORMER  
A crucible former for use in the production of metal castings by the "lost wax" process, which is formed of a thermoplastic material which volatilizes below the mold temperature for making the...
3610314 METHOD OF MAKING A SEGMENTAL METAL MOLD CAVITY  
A method of making a segmented negative mold cavity having the segments in precise registration. The segments are formed from investments prepared from a number of fusible wax negative models,...
3598167 METHOD AND MEANS FOR THE PRODUCTION OF COLUMNAR-GRAINED CASTINGS  
A method and materials for producing shell molds for casting columnar grained metal components wherein a pattern is prepared corresponding to the shape of casting to be formed. The pattern is then...
3561521 METHOD FOR CHANGING THE SIZE OF WAX RING PATTERNS  
A method for accurately changing the inside diameter of wax patterns for finger rings. A portion of the band of the wax pattern on each side of the sprue piece is removed and a bar of the desired...
3548916 METHOD OF CASTING A DENTAL GOLD ALLOY DIRECTLY TO PREFABRICATED PORCELAIN TEETH  
3519057 ELIMINATING PATTERNS FROM AND HARDENING OF SHELL MOLDS  
3511466 MOLD FOR WAX PATTERNS FOR CASTING FINGER RINGS  
RE26785 Title is not available  
3480071 METHOD OF SHELL MOULDING AND CASTING  
3445348 CELLULAR STRUCTURE AND METHOD OF MANUFACTURE  
Matches 201 - 250 out of 334 < 1 2 3 4 5 6 7 >