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| Number | Title | Issue Date |
| 7942190 | Process for repairing inlet ports of an extruder die A process for repairing one or more worn inlet ports on an interior or exterior surface of an extruder die wherein each inlet port provides an opening into an extrusion channel. The worn inlet port has a funnel shape and a diameter greater than that of the extrusion... | 05/17/2011 |
| 7353858 | Cap for servicing molding-system valve Disclosed is: (i) a cap for servicing a molding-system valve, and (ii) a method of a cap for servicing a molding-system valve, amongst other things. ... | 04/08/2008 |
| 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 |
| 6470550 | Methods of making tooling to be used in high temperature casting and molding A method of making or reconstituting tooling to be used in the processing of high temperature molten material comprises machining an undercut in the tooling surface which terminates at a shoulder and provides an inset barrier receiving surface; a chemical... | 10/29/2002 |
| 6464128 | Braze repair of a gas turbine engine stationary shroud An undersize repair region of a gas turbine engine stationary shroud is repaired with a sufficient mass of a repair material. The repair material includes a first fraction of a first powder of a first alloy component, and a second fraction of a second pow... | 10/15/2002 |
| 6283356 | Repair of a recess in an article surface A method for repairing a recess in an article surface comprises providing first and second metallic powders. The first powder has a first melting temperature and the second powder has a second melting temperature less than the first melting temperature. T... | 09/04/2001 |
| 5904201 | Solidification of an article extension from a melt using a ceramic mold A method for forming integral extensions on the end of directionally oriented, superalloy articles, such as airfoil blading members or other components used in gas turbine or other turbine engines. An extension is formed directly on an article by dipping ... | 05/18/1999 |
| 5778960 | Method for providing an extension on an end of an article An extension is formed directly on the end of an article by dipping the end into a molten bath of an alloy, followed by withdrawal of the end at a rate sufficient to form the extension. Extensions formed have a microstructure that is continuous and compat... | 07/14/1998 |
| 5743322 | Method for forming an article extension by casting using a ceramic mold An extension is formed directly on an article by casting a compatible material into a ceramic mold that is attached on an end of the article, followed by cooling of the end under controlled conditions sufficient to cause an integral extension to solidify ... | 04/28/1998 |
| 5676191 | Solidification of an article extension from a melt using an integral mandrel and ceramic mold An extension is formed directly on an article by dipping a portion or end of the article having an attached integral mandrel into a molten bath of a compatible alloy, followed by withdrawal of the end under controlled conditions sufficient to cause an int... | 10/14/1997 |
| 5673744 | Method for forming an article extension by melting of a mandrel in a ceramic mold An extension is formed directly on an article by melting a portion or end of the article having an attached integral mandrel within a ceramic mold, followed by cooling of the end under controlled conditions sufficient to cause an integral extension to sol... | 10/07/1997 |
| 5673745 | Method for forming an article extension by melting of an alloy preform in a ceramic mold An extension is formed directly on an article by melting a compatible alloy preform within a ceramic mold, followed by cooling of the end under controlled conditions sufficient to cause an integral extension to solidify on the article. A ceramic mold is a... | 10/07/1997 |
| 5336091 | Moldable dental material and method A moldable dental composition for use in forming or repairing dental restorations composed of a mixture of high- and low-fusing temperature metal particles and a volatile binder, composed substantially or entirely of wax, with the binder having a concentr... | 08/09/1994 |
| 5304039 | Method for providing an extension on an end of an article and extended article An extension is provided on an end of an article having a directionally oriented microstructure by using the article end as a growth seed in a molten material compatible with material from which the article end is made. The extension is directionally soli... | 04/19/1994 |
| 5291937 | Method for providing an extension on an end of an article having internal passageways An extension is provided on an end of an article having internal passageways and having a directionally oriented microstructure by using the article end as a growth seed in a molten material compatible with material from which the article end is made. The... | 03/08/1994 |
| 5261480 | Process and apparatus for repair of drive blades such as turbine blades A process and apparatus for the repair of single-crystal drive blades, such as turbine blades, in which a sound portion of the blade is inserted into an open bottom of a casting mold in communication with a casting cavity in the mold adopted to the shape ... | 11/16/1993 |
| 4875657 | Rail repairing method and apparatus A mould for the repairing of a damaged portion of a rail head, the mould includes a pair of mould halves which engage the longitudinal sides of the rail so as to provide a cavity above the damaged portion of the rail, molten metal is subsequently delivere... | 10/24/1989 |
| 4742861 | Method and material for dental structures A dental material and method for forming, reinforcing or repairing a dental restoration comprising a combination of a high fusing temperature metal component in a major proportion and a low fusing temperature component in a minor proportion. A binder may ... | 05/10/1988 |
| 4599781 | Method of repairing cracked thin metal parts Thin metal parts such as one eighth inch or less cast iron or one quarter inch or less cast aluminum are repaired by drilling a series of overlapping holes extending generally perpendicular to the crack at each end of the crack and at spaced locations alo... | 07/15/1986 |
| 4593747 | Ingot mould repair method The invention is a method for rebuilding grey cast iron ingot moulds that have a cavity erroded therein and the concept is to fill the cavity with cast iron from a tubular wire supply by electric arc deposit at a rate such that the heat supplied by the el... | 06/10/1986 |
| 4547941 | Method for repairing housings of pumps and the like The cast iron housing of a pump for conveying gravel or the like can be repaired by inserting into a recess in its internal surface a casting which at least substantially fills the recess. The recess develops as a result of washout, cavitation and/or othe... | 10/22/1985 |
| 4394879 | Method of repairing damaged keyway A simple, cost effective method is provided for repairing damaged and misshapen keyways in shafts and like parts. An insert formed of carbon or other nonmetallic material which retains its shape when subjected to welding temperatures and which will not bo... | 07/26/1983 |
| 4328077 | Method for reforming a used tubular mold for continuous casting In order to reform or rejuvenate a spent or worn tubular mold used for continuous casting, friction bodies are introduced into the hollow mold compartment following the grinding of the inner surface of such mold compartment, the ends of the tubular mold a... | 05/04/1982 |
| 4172155 | Surfacing circular-section metal members A method of surfacing mill guide rolls 1 in which a metallic powder (6) is deposited on to the surface of the rotatable roll by flame, arc or plasma spraying, fusion welded and then shaped and compacted while in a plastic condition by a roll former 7 rota... | 10/23/1979 |
| 4168736 | A method of repairing ferrous metal bodies It is known to fill errosion holes in ingot mould bottoms, and other holes in ferrous metal bodies, with metal produced in situ by exothermic reaction. By the present invention, the exothermic composition is used in conjunction with a particulate refracto... | 09/25/1979 |
| 4120345 | Method for ingot mold repair A method for ingot casting using a vertical, open-ended mold removably positioned on a mold stool, a closed-bottom mold or a plug-bottom mold wherein steel particles are used to fill a relieved portion of the bottom typically resulting from erosion thereo... | 10/17/1978 |
| 4104777 | Repair of bottle top molds In bottle top molds a plug is used as a closure for the opening in the top wall of the molds through which the molten metal is poured. The surface of the opening tends to become eroded by the molten metal flowing into the mold and, as a result, the plug n... | 08/08/1978 |
| 4098450 | Superalloy article cleaning and repair method A narrow crevice in a Ni-base superalloy article is repaired by first removal of a complex oxide of at least one metal selected from Al and Ti, by treatment of the oxide in the crevice with gaseous active fluoride ions in a non-oxidizing atmosphere at a t... | 07/04/1978 |
| 4094049 | Casting rolling mill for wire A rolling mill structure is provided especially for wire and like products having a continuously operating casting unit providing a cast metal strand and a rolling mill receiving the strand, the rolling mill being installed on a sliding carriage that is c... | 06/13/1978 |
| 4055881 | Method of rebuilding an ingot mold A method of rebuilding the eroded area of an ingot mold such as used in casting steel ingots places a metal producing exothermic compound in a cleaned eroded area of the ingot mold to be rebuilt, ignites the compound and confines the molten metal produced... | 11/01/1977 |
| 4044586 | Continuous rolling mill There is disclosed a rolling assembly for the initial rolling passes of a metal ingot coming from a continuous casting machine and having substantially triangular or trapezial cross-section with mutually proportional sides. The rolling assembly comprises ... | 08/30/1977 |
| 4040471 | Method of making or repairing and securing lugs and trunnion members to ingot molds A method for making or repairing lugs and trunnion members for ingot molds by forming a casting space or cavity corresponding to the shape of the lug or trunnion member on the side of the ingot mold where the member is to be secured, forming a casting mat... | 08/09/1977 |
| 4005742 | Method of restoring ingot mold stools and closed-bottom ingot mold A method of repairing large castings, such as ingot molds and mold stools, by employing an aluminothermic reduction reaction without using containment perimeters and without preheating the casting. The resultant repaired article has a metallurgically bond... | 02/01/1977 |
| 3942578 | Method of repairing large castings A method of repairing large castings, such as ingot molds and mold stools, by employing an aluminothermic reduction reaction. The resultant repaired article has a metallurgically bonded plug in the crack, hole, break, or eroded surface. An alternative rep... | 03/09/1976 |
| 3934107 | Process for repairing slag ladles The invention provides a process for repairing slag ladles for iron and steel making, the process including securing a steel plate to the exterior of the ladle over a damaged area, and subsequently forming successive welded layers within the ladle using a... | 01/20/1976 |
