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| Number | Title | Issue Date |
| 8186419 | Method and system for internal cleaning of complex castings A decoring method and system is provided. The method includes the steps of providing the casting having a core material disposed in the internal passage; providing the decoring apparatus configured to selectively oscillate the casting and selectively rotate the cast... | 05/29/2012 |
| 8091610 | Method and apparatus for removing core material Core material is removed from a passage in a casting by exposing at least a portion of the core material in the passage to a leaching liquid. At least a portion of the core material in the passage is exposed to a gas. An opening to passage is exposed to a gas. At le... | 01/10/2012 |
| 8087447 | Method for checking wall thickness of hollow core airfoil A molding technique is utilized to form the cooling channels in an airfoil for a gas turbine engine. The cooling channels are formed by lost core mold cores, which are leached away after metal has been molded around them. At least one of the mold cores is provided w... | 01/03/2012 |
| 7921901 | Sacrificial sleeves for die casting aluminum alloys Some die cast aluminum alloy articles have internal cylindrical surfaces such as the round internal cylinder surfaces of a cylinder block for an internal combustion engine. During casting solidification molten aluminum alloys shrink against the metallic permanent mo... | 04/12/2011 |
| 7882884 | Method for casting core removal To destructively remove a casting core from a cast part, the part is exposed to a combination of nitric acid and sulfuric acid. The combination may have, by volume, a nitric acid concentration of 4-20 times the sulfuric acid concentration. The combination may be an ... | 02/08/2011 |
| 7819169 | Heat transferring cooling features for an airfoil A turbine blade airfoil assembly includes a cooling air passage. The cooling air passage includes a plurality of impingement openings that are isolated from at least one adjacent impingement opening. The cooling air passage is formed and cast within a turbine blade ... | 10/26/2010 |
| 7387492 | Methods and apparatus for cooling turbine blade trailing edges A method facilitates fabricating an airfoil for use with a turbine blade. The method comprises forming a substantially solid ceramic airfoil core, inserting the core into a die and casting the airfoil with a pressure side wall and a suction side wall connected toget... | 06/17/2008 |
| 7364423 | Article moving apparatus configured for a molding machine Disclosed is an article moving apparatus configured to move an article relative to a first mold half and a second mold half of a molding machine. The article moving apparatus includes an arm configured to grasp and release the article, and also include an arm recipr... | 04/29/2008 |
| 7347247 | Method of forming a metal casting having a uniform side wall thickness A core rod is utilized in the process of forming a core in a metal casting. The core rod has a length and opposite ends. The core rod is generally round in cross-section along at least a portion of the length of the core rod proximate at least one of the ends config... | 03/25/2008 |
| 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 |
| 7322396 | Weld closure of through-holes in a nickel-base superalloy hollow airfoil A hollow airfoil is fabricated by providing a casting mold assembly including a casting mold, a casting core, and a standoff spacer that prevents the casting core from contacting the casting mold to define a casting space. A first nickel-base superalloy is cast into... | 01/29/2008 |
| 7316258 | Method for production of hollow bodies and grinding bodies so produced A method for producing hollow grinding bodies for comminuting material to be ground uses a casting mold having a cavity and includes arranging a core in the cavity with retaining elements to produce a shell-type intermediate space. At least in the area of the interm... | 01/08/2008 |
| 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 |
| 7287573 | Silicone binders for investment casting A green product for use in fabricating a ceramic article comprises a ceramic powder immobilized within a silicone matrix, wherein the silicone matrix comprises one or more cross linked or polymerized silicone monomers and/or oligomers, wherein the one or more cross ... | 10/30/2007 |
| 7284589 | Reinforced casting cores for metal casting, manufacture and use Sacrificial lost casting cores of green or fired ceramic, which include at least one tension spring as a metallic reinforcing element, wherein at least one end of this reinforcing element lies near one of the surfaces of the casting core or extends therethrough, and... | 10/23/2007 |
| 7278460 | Ceramic casting core and method A ceramic core for use in casting an article such as for example an airfoil, wherein the ceramic core has a pocket located at or near a region of the core that is otherwise associated with occurrence of a localized casting defect in the cast article. A covering is d... | 10/09/2007 |
| 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 |
| 7270170 | Investment casting core methods A sacrificial core is used for forming an interior space of a part and includes a ceramic core element and a first core element including a refractory metal element. The ceramic core element may be molded over the first core element or molded with assembly features ... | 09/18/2007 |
| 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 |
| 7252134 | Method and apparatus for removal of flashing and blockages from a casting Various systems and apparatuses for processing a metal casting are provided. ... | 08/07/2007 |
| 7243700 | Method for casting core removal To destructively remove a refractory metal casting core from a cast part the part is exposed to a combination of nitric acid and sulfuric acid. ... | 07/17/2007 |
| 7240718 | Method for casting core removal A thermal-oxidative process is used to remove a casting core from a cast part. ... | 07/10/2007 |
| 7234506 | Ceramic casting core and method A ceramic core for use in casting an article such as for example an airfoil, wherein the ceramic core has a pocket located at or near a region of the core that is otherwise associated with occurrence of a localized casting defect in the cast article. A covering is d... | 06/26/2007 |
| 7228947 | Method and tools for the production of a braking band for a brake disk The invention relates to a method and tools for producing a braking band (2) of a disk-brake disk (1) by casting, in which the disk comprises at least two plates (3, 3′) connected to one another by connecting elements (4) forming an int... | 06/12/2007 |
| 7225856 | Precipitation-hardenable alloy core rod, plunger tip having a uniform side wall thickness, and method of forming same A core rod is utilized in the process of forming a core in a metal casting. The core rod has a length and opposite ends The core rod is generally round in cross-section along at least a portion of the length of the core rod proximate at least one of the ends configu... | 06/05/2007 |
| 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 |
| 7213575 | Fuel manifold in thixotropic aluminum for the direct injection of fuel into an internal combustion engine A fuel manifold for the direct injection of fuel into an internal combustion engine comprising a head provided with a number of cylinders, a number of injectors, each of which is connected to the fuel manifold and is adapted directly to inject the fuel into a respec... | 05/08/2007 |
| 7172012 | Investment casting An investment casting pattern is formed by installing a first core to a first element of a molding die to leave a first portion of the first core protruding from the first element. After the installing, the first element is assembled with a feed core and a second el... | 02/06/2007 |
| 7165597 | Insert core and method for manufacturing a cylinder for internal combustion engine by making use of the insert core There is provided a method of cast molding a cylinder for an internal combustion engine by making use of an insert core, which makes it possible to rationally form the chamfered portions at the rim portion, on the cylinder bore side, of the scavenging ports, the suc... | 01/23/2007 |
| 7134476 | Process for the production of a braking band of a brake disk with ventilation ducts and a braking band produced by this process A process for the production of a braking band having ventilation ducts comprises the steps of a) moulding a core of metallic material, b) inserting the core in a mould, in a central position, c) filling the mould with at least two layers of material which are to fo... | 11/14/2006 |
| 7097801 | Method of making an integrated mold product The present invention involves a method of making an integrated mold product with a molding tool. The method includes introducing polymeric material in the molding tool and molding the polymeric material to define an outer layer in the mold. The outer layer has a ch... | 08/29/2006 |
| 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 |
| 7051785 | As cast and trimmed bores in a front head member of an air conditioning compressor assembly The subject invention provides a method of manufacturing an air conditioning compressor assembly for a vehicle having a front head member. A forming die having a cover half and an ejector half is shaped to define the features of the front head member. A conventional... | 05/30/2006 |
| 7014424 | Turbine element A turbine element airfoil has a cooling passageway network with a slot extending from a trailing passageway toward the trailing edge. A number of discrete posts span the slot between pressure and suction sidewall portions. ... | 03/21/2006 |
| 7007736 | Die forming method for forming female screw A molten magnesium material is filled into a product section of a die. The molten magnesium material is cooled and solidified in the die, so that a molded product is formed. Subsequently, a thread-shaped pin is rotated, so that a female-thread forming section is dra... | 03/07/2006 |
| 6986297 | Method of manufacturing PDC cutters with chambers or passages A cutting element for a drill bit used in drilling subterranean formations is formed with an internal chamber or passage for the flow of drilling fluid therethrough. The cutting element includes a substrate having at least one internal passage, and prior to attachin... | 01/17/2006 |
| 6962189 | Method of making precision castings using thixotropic materials Precision castings requiring a fine finish and having complex internal geometries can be produced by casting a semi-solid thixotropic metal alloy within or about a melt-away metal component in the form of a core and/or a die insert that has a lower melting point tha... | 11/08/2005 |
| 6957685 | Method of cleaning and of heat treating lost foam castings A method of cleaning and of heat treating lost foam castings utilizing a heated, fluidized sand bed is disclosed. The fluidized action of the sand, the movement of the casting through the sand and the heat of the bed, combine to remove residue coating resulting from... | 10/25/2005 |
| 6945309 | Method and apparatus for forming a part with dampener A method for producing a damped part where a sand core is formed with at least one dampening structure with the sand core. The sand core with the at least one dampening structure therein is located in a mold. A part is cast from the mold and the sand core. The sand ... | 09/20/2005 |
