Patents by Inventor Steven G. Caldwell
Steven G. Caldwell 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: 11944953Abstract: Described herein are methods of forming a VOC and odor-reducing building panel. The methods include providing a substrate; applying a wet-state coating to a major surface of the substrate, the wet-state coating comprising carrier comprising water; and drying the wet-state coating, thereby evaporating at least 95 wt. % of the carrier to form a dry-state coating.Type: GrantFiled: April 27, 2021Date of Patent: April 2, 2024Assignee: AWI Licensing LLCInventors: Kenneth G. Caldwell, Steven L. Masia, Gourish Sirdeshpande, Michelle X Wang
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Patent number: 8841005Abstract: An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.Type: GrantFiled: October 1, 2012Date of Patent: September 23, 2014Assignee: Kennametal Inc.Inventors: Prakash K. Mirchandani, Alfred J. Mosco, Eric W. Olsen, Steven G. Caldwell
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Publication number: 20140145097Abstract: Various non-limiting embodiments disclosed herein generally relate to metallurgically dense radiation shields formed from bismuth alloys comprising from 10 weight percent to 60 weight percent tin that are essentially free of toxic heavy metals chosen from lead, cadmium, and uranium; and radiation attenuation devices comprising the same. Other non-limiting embodiments disclosed herein relate to methods of making metallurgically dense radiation shields comprising bismuth alloys comprising from 10 weight percent to 60 weight percent tin. Still other non-limiting embodiments herein generally relate to methods of shielding radiation-emitting devices using metallurgically dense radiation shields formed from bismuth alloys comprising from 10 weight percent to 60 weight percent tin that are essentially free of toxic heavy metals chosen from lead, cadmium, and uranium.Type: ApplicationFiled: April 14, 2004Publication date: May 29, 2014Inventor: Steven G. Caldwell
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Patent number: 8697258Abstract: An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.Type: GrantFiled: July 14, 2011Date of Patent: April 15, 2014Assignee: Kennametal Inc.Inventors: Prakash K. Mirchandani, Alfred J. Mosco, Eric W. Olsen, Steven G. Caldwell
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Publication number: 20120097456Abstract: The present invention relates to compositions for forming at least a portion of an earth-boring rotary drill bit. The rotary drill bit may comprise a cemented transition metal carbide composition containing at least one precipitate transition metal carbide phase and at least one binder phase. The binder phase may comprise an alloy of at least one of cobalt, iron, and nickel having a melting point less than 1350° C.Type: ApplicationFiled: December 1, 2011Publication date: April 26, 2012Applicants: Baker Hughes Incorporated, TDY INDUSTRIES, INC.Inventors: Prakash K. Mirchandani, Jimmy W. Eason, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens, Steven G. Caldwell, Alfred J. Mosco
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Patent number: 8087324Abstract: The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one of carbide, nitride, boride, oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder.Type: GrantFiled: April 20, 2010Date of Patent: January 3, 2012Assignees: TDY Industries, Inc., Baker Hughes IncorporatedInventors: Jimmy W. Eason, Prakash K. Mirchandani, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens, Steven G. Caldwell, Alfred J. Mosco
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Publication number: 20110265623Abstract: An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.Type: ApplicationFiled: July 14, 2011Publication date: November 3, 2011Applicant: TDY Industries, Inc.Inventors: Prakash K. Mirchandani, Alfred J. Mosco, Eric W. Olsen, Steven G. Caldwell
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Patent number: 8007922Abstract: An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.Type: GrantFiled: October 25, 2007Date of Patent: August 30, 2011Assignee: TDY Industries, IncInventors: Prakash K. Mirchandani, Alfred J. Mosco, Eric W. Olsen, Steven G. Caldwell
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Patent number: 8007714Abstract: The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one of carbide, nitride, boride, oxide, and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder.Type: GrantFiled: February 20, 2008Date of Patent: August 30, 2011Assignees: TDY Industries, Inc., Baker Hughes IncorporatedInventors: Prakash K. Mirchandani, Jimmy W. Eason, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens, Steven G. Caldwell, Alfred J. Mosco
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Patent number: 7954569Abstract: The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one of carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder.Type: GrantFiled: April 28, 2005Date of Patent: June 7, 2011Assignees: TDY Industries, Inc., Baker Hughes IncorporatedInventors: Prakash K. Mirchandani, Jimmy W. Eason, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens, Steven G. Caldwell, Alfred J. Mosco
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Publication number: 20100193252Abstract: The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one of carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder.Type: ApplicationFiled: April 20, 2010Publication date: August 5, 2010Applicants: TDY INDUSTRIES, INC., BAKER HUGHES INCORPORATEDInventors: Prakash K. Mirchandani, Jimmy W. Eason, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens, Steven G. Caldwell, Alfred J. Mosco
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Publication number: 20080163723Abstract: The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder.Type: ApplicationFiled: February 20, 2008Publication date: July 10, 2008Applicants: TDY Industries Inc., Baker Hughes IncorporatedInventors: Prakash K. Mirchandani, Jimmy W. Eason, James J. Oakes, James C. Westhoff, Gabriel B. Collins, John H. Stevens, Steven G. Caldwell, Alfred J. Mosco
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Publication number: 20080145686Abstract: An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.Type: ApplicationFiled: October 25, 2007Publication date: June 19, 2008Inventors: Prakash K. Mirchandani, Alfred J. Mosco, Eric W. Olsen, Steven G. Caldwell
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Patent number: 7312466Abstract: Embodiments of a radiation shield are disclosed. One non-limiting embodiment of the radiation shield may comprise a first layer, a second layer, and a third layer. The first layer may include a neutron moderating material. The second layer may be adjacent the first layer and may include a neutron absorbing material. The third layer may be adjacent the second layer, and may include a photonic radiation attenuating material. At least the first layer and the second layer may be removable from the radiation shield.Type: GrantFiled: May 26, 2005Date of Patent: December 25, 2007Assignee: TDY Industries, Inc.Inventor: Steven G. Caldwell