Patents by Inventor Ronald C. Aufderheide
Ronald C. Aufderheide has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9931693Abstract: A sleeve (10) allows flow against gravity of molten metal into a casting mold. The sleeve has a sleeve body (20) with a longitudinal axis that defines a flow conduit for the metal. A check valve (30) is positioned in the flow conduit, arranged for limited axial movement in the sleeve between a closed position and an open position, although it is operatively positioned to be in the closed position in the absence of the pressurized metal. The check valve has a spool (32) with an internal flow conduit, a top end of the conduit blocked by an end cap (40). Flanges (36, 38) on the spool provide the limited axial movement in the sleeve. When lifted into the open position, metal flows into the spool flow conduit and through a porous structure of the spool, causing laminar flow and filtering inclusions.Type: GrantFiled: November 12, 2015Date of Patent: April 3, 2018Assignee: ASK CHEMICALS LLCInventors: Lee R. Horvath, Ronald C. Aufderheide, Sam Nerone Ramrattan, Sean B. Harmon
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Publication number: 20160067773Abstract: A sleeve (10) allows flow against gravity of molten metal into a casting mold. The sleeve has a sleeve body (20) with a longitudinal axis that defines a flow conduit for the metal. A check valve (30) is positioned in the flow conduit, arranged for limited axial movement in the sleeve between a closed position and an open position, although it is operatively positioned to be in the closed position in the absence of the pressurized metal. The check valve has a spool (32) with an internal flow conduit, a top end of the conduit blocked by an end cap (40). Flanges (36, 38) on the spool provide the limited axial movement in the sleeve. When lifted into the open position, metal flows into the spool flow conduit and through a porous structure of the spool, causing laminar flow and filtering inclusions.Type: ApplicationFiled: November 12, 2015Publication date: March 10, 2016Inventors: Lee R. HORVATH, Ronald C. AUFDERHEIDE, Sam Nerone RAMRATTAN, Sean B. HARMON
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Publication number: 20150298201Abstract: A riser sleeve (100) for use in a foundry molding operation has cylindrical body in which the side wall (14) that may be untapered or that may taper uniformly from the bottom to the top (12) of the body. The riser sleeve is characterized by a plurality of cavities (102) are formed on the side wall, extending from the top in an axial direction of the body. These cavities provide air gaps when the riser sleeve is inserted into a mold, decreasing heat loss at the interface between the riser sleeve and the mold.Type: ApplicationFiled: November 19, 2013Publication date: October 22, 2015Inventors: Ronald C. AUFDERHEIDE, Sean R HARMON, Lee R HORVATH, Ralph E SHOWMAN
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Patent number: 8367749Abstract: The invention relates to microspheres coated with a phenolic novolak resin, a process for preparing them, and their use in making foundry shapes, e.g. molds, cores, sleeves, pouring cups, etc., which are used in casting metal parts.Type: GrantFiled: December 18, 2009Date of Patent: February 5, 2013Assignee: Ask Chemicals L.P.Inventor: Ronald C. Aufderheide
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Patent number: 8071664Abstract: Compositions comprising (1) a refractory and/or a binder, and (2) bis-cyclopentadienyl iron cyclopentadienyl manganese tricarbonyl, derivatives thereof, and mixtures thereof.Type: GrantFiled: January 26, 2009Date of Patent: December 6, 2011Assignee: ASK Chemicals L.P.Inventors: Ronald C. Aufderheide, Michael T. Brown, Jorg Kroker, Xianping Wang
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Patent number: 7967053Abstract: This invention relates to filters made from a refractory material, preferably an insulating material, and chemical binder. The filters are used in the foundry industry to filter molten metal. The invention also relates to a process for preparing the filters.Type: GrantFiled: September 29, 2009Date of Patent: June 28, 2011Assignee: ASK Chemicals L.P.Inventors: Ronald C. Aufderheide, Ralph E. Showman
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Publication number: 20100099794Abstract: The invention relates to microspheres coated with a phenolic novolak resin, a process for preparing them, and their use in making foundry shapes, e.g. molds, cores, sleeves, pouring cups, etc., which are used in casting metal parts.Type: ApplicationFiled: December 18, 2009Publication date: April 22, 2010Inventor: Ronald C. Aufderheide
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Publication number: 20100071866Abstract: This invention relates to filters made from a refractory material, preferably an insulating material, and chemical binder. The filters are used in the foundry industry to filter molten metal. The invention also relates to a process for preparing the filters.Type: ApplicationFiled: September 29, 2009Publication date: March 25, 2010Inventors: Ronald C. Aufderheide, Ralph E. Showman
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Patent number: 7659327Abstract: The invention relates to microspheres coated with a phenolic novolak resin, a process for preparing them, and their use in making foundry shapes, e.g. molds, cores, sleeves, pouring cups, etc., which are used in casting metal parts.Type: GrantFiled: August 7, 2006Date of Patent: February 9, 2010Assignee: Ashland Licensing and Intellectual Property, LLCInventor: Ronald C. Aufderheide
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Publication number: 20090199991Abstract: Compositions comprising (1) a refractory and/or a binder, and (2) bis-cyclopentadienyl iron cyclopentadienyl manganese tricarbonyl, derivatives thereof, and mixtures thereof.Type: ApplicationFiled: January 26, 2009Publication date: August 13, 2009Applicant: Ashland Licensing and Intellectual Property LLCInventors: Ronald C. Aufderheide, Michael T. Brown, Jorg Kroker, Xianping Wang
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Patent number: 7270172Abstract: This invention relates to an improved process for casting a metal by pouring molten metal into and around a casting assembly, where a riser containing a sleeve is a component of the casting assembly. The process comprises (a) inserting a riser insert into the cavity of the riser containing the sleeve, and (b) then allowing molten metal to flow into the cavity of the riser containing the riser insert. The density of the riser insert is such that the riser insert floats on the surface of the molten metal when the molten metal enters the cavity of the riser and provides a thermal barrier to reduce heat loss from the riser. The sleeve is shaped such that the riser insert will not be forced out or float off of the riser cavity when the metal is poured.Type: GrantFiled: November 3, 2005Date of Patent: September 18, 2007Assignee: Ashland Licensing and Intellectual Property LLCInventor: Ronald C. Aufderheide
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Publication number: 20040069434Abstract: This invention relates to a process for preparing detailed foundry shapes (e.g. molds and cores) used in casting metal articles. The process involves preparing foundry shapes from hollow ceramic microspheres bonded with organic or inorganic binders. The foundry shape is then detailed by machining, cutting, stamping, or otherwise removing material from the foundry shape to provide special shapes, letters, numbers, insignia, machine readable codes, etc. on the surface of the foundry shape. The foundry shapes are used to produce detailed metal castings. This detail can be unique to a single casting to provide a permanent traceable mark for casting identification from the time of manufacture to disposal.Type: ApplicationFiled: April 24, 2003Publication date: April 15, 2004Inventors: Ralph E. Showman, Christopher A. Lute, Ronald C. Aufderheide
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Publication number: 20030234093Abstract: This invention relates to an improved process for casting a metal by pouring molten metal into and around a mold assembly, where a riser is a component of the mold assembly. The process comprises (a) inserting a riser insert into the cavity of the riser, and (b) then allowing molten metal to flow into the cavity of the riser containing the riser insert. The process is carried out in a manner such that the density and the shape of the riser insert enables the riser insert to float on the surface of the molten metal when the molten metal enters the cavity of the riser.Type: ApplicationFiled: June 20, 2002Publication date: December 25, 2003Inventors: Ronald C. Aufderheide, Ralph E. Showman, William J. Massey
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Patent number: 6360808Abstract: The invention relates to exothermic sleeve compositions comprising (a) an oxidizable metal where the oxidizable metal comprises aluminum dross, and (b) an oxidizing agent capable of generating an exothermic reaction. The invention also relates to sleeve mixes prepared with the sleeve compositions, the use of the sleeve composition to prepare sleeves, the sleeves prepared with the sleeve compositions and the use of the sleeves to prepare metal castings.Type: GrantFiled: June 19, 2000Date of Patent: March 26, 2002Assignee: Ashland Inc.Inventors: Helena Twardowska, Ronald C. Aufderheide
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Patent number: 6335387Abstract: This invention relates to insulating sleeve compositions comprising (1) a major amount of hollow aluminosilicate microspheres, and (2) fine silica. The sleeve compositions are used to form sleeve mixes by mixing them with a chemically reactive binder. Sleeves are formed from the sleeve mix and are cured in the presence of a catalyst by the cold-box or no-bake cuing process. The invention also relates to a process for casting metal parts using a casting assembly where the sleeves are a component of the casting assembly. Additionally, the invention relates to the metal parts produced by the casting process.Type: GrantFiled: March 21, 2000Date of Patent: January 1, 2002Assignee: Ashland Inc.Inventors: Helena Twardowska, Ronald C. Aufderheide
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Publication number: 20010022999Abstract: The invention relates to an exothermic sleeve composition comprising (a) an oxidizable metal where the oxidizable metal comprises fine aluminum as the major component, and (b) an oxidizing agent capable of generating an exothermic reaction. The invention also relates to the use of the sleeve composition to prepare sleeves, the sleeves prepared with the sleeve compositions, and the use of the sleeves to prepare metal castings.Type: ApplicationFiled: January 16, 2001Publication date: September 20, 2001Inventors: Helena Twardowska, Ronald C. Aufderheide, Ralph E. Showman
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Patent number: 6286585Abstract: This invention relates to exothermic and insulating sleeve mixes comprising (1) a sleeve composition comprising stabilized hollow aluminosilicate microspheres, and (2) a chemically reactive binder. Sleeves are formed from the sleeve mix and are cured in the presence of a catalyst by the cold-box or no-bake curing process. The invention also relates to a process for casting metal parts using a casting assembly where the sleeves are a component of the casting assembly. Additionally, the invention relates to the metal parts produced by the casting process.Type: GrantFiled: March 21, 2000Date of Patent: September 11, 2001Assignee: Ashland Inc.Inventors: Helena Twardowska, Ronald C. Aufderheide
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Patent number: 5915450Abstract: This invention relates to riser sleeves which contain markings and concentric grooves. The markings are used to as a guide so one can customize the size of the sleeves and the concentric grooves are used to help hold the sleeve in place when it is placed in the mold where it surrounds the riser. The invention also relates to the use of the riser sleeves in the making of metal castings.Type: GrantFiled: June 13, 1997Date of Patent: June 29, 1999Assignee: Ashland Inc.Inventors: Ronald C. Aufderheide, David M. Gilson, John L. Perrins
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Patent number: D397702Type: GrantFiled: June 13, 1997Date of Patent: September 1, 1998Inventors: Ronald C. Aufderheide, David M. Gilson, John L. Perrins