Patents by Inventor Edward V. Conley
Edward V. Conley 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: 6368377Abstract: A hard member for use as a wear part or a hard insert for a point attack style of tool or a rotary style of tool. The hard member having a composition of between about 5 volume percent and about 40 volume percent binder alloy, and between about 60 volume percent and about 95 volume percent tungsten carbide. The tungsten carbide has an average grain size between about 1 micrometer and about 30 micrometers. The binder alloy comprises an alloy of nickel and chromium wherein the nickel ranges between about 70 weight percent and less than 93 weight percent and the chromium ranges between greater than 7 weight percent and about 30 weight percent.Type: GrantFiled: September 21, 2000Date of Patent: April 9, 2002Assignee: Kennametal PC Inc.Inventors: William A. Bryant, Edward V. Conley, Ted R. Massa
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Patent number: 6173798Abstract: A hard member for use as a wear part or a hard insert for a point attack style of tool or a rotary style of tool. The hard member having a composition of between about 5 volume percent and about 40 volume percent binder alloy, and between about 60 volume percent and about 95 volume percent tungsten carbide. The tungsten carbide has an average grain size between about 1 micrometer and about 30 micrometers. The binder alloy comprises an alloy of nickel and chromium wherein the nickel ranges between about 70 weight percent and less than 93 weight percent and the chromium ranges between greater than 7 weight percent and about 30 weight percent.Type: GrantFiled: February 23, 1999Date of Patent: January 16, 2001Assignee: Kennametal Inc.Inventors: William A. Bryant, Edward V. Conley, Ted R. Massa
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Patent number: 5806934Abstract: Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. Preferably, the cermets further exhibit uniform or controlled wear to impart a self-sharpening character to an article. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or any combination of the preceding).Type: GrantFiled: December 21, 1995Date of Patent: September 15, 1998Assignee: Kennametal Inc.Inventors: Ted R. Massa, John S. Van Kirk, Edward V. Conley
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Patent number: 5776593Abstract: Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. Preferably, the cermets further exhibit uniform or controlled wear to impart a self-sharpening character to an article. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or any combination of the preceding).Type: GrantFiled: December 21, 1995Date of Patent: July 7, 1998Assignee: Kennametal Inc.Inventors: Ted R. Massa, John S. Van Kirk, Edward V. Conley
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Patent number: 5697046Abstract: Methods for making, methods for using and articles comprising ferromagnetic cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or differential magnetic saturation or any combination of the preceding). Preferably, a first region of the cermet comprises a first hard component having a prescribed binder content and a first magnetic saturation and a second region, juxtaposing or adjoining the first region, comprising a second binder content different than the binder content of the first region and a second magnetic saturation different than that of the first region.Type: GrantFiled: June 6, 1995Date of Patent: December 9, 1997Assignee: Kennametal Inc.Inventor: Edward V. Conley
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Patent number: 5697042Abstract: Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. Preferably, the cermets further exhibit uniform or controlled wear to impart a self-sharpening character to an article. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or any combination of the preceding).Type: GrantFiled: December 21, 1995Date of Patent: December 9, 1997Assignee: Kennametal Inc.Inventors: Ted R. Massa, John S. Van Kirk, Edward V. Conley
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Patent number: 5679445Abstract: Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. Preferably, the cermets further exhibit uniform or controlled wear to impart a self-sharpening character to an article. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or any combination of the preceding).Type: GrantFiled: December 23, 1994Date of Patent: October 21, 1997Assignee: Kennametal Inc.Inventors: Ted R. Massa, John S. Van Kirk, Edward V. Conley
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Patent number: 5677042Abstract: Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. Preferably, the cermets further exhibit uniform or controlled wear to impart a self-sharpening character to an article. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or any combination of the preceding).Type: GrantFiled: June 6, 1995Date of Patent: October 14, 1997Assignee: Kennametal Inc.Inventors: Ted R. Massa, John S. Van Kirk, Edward V. Conley
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Patent number: 5541006Abstract: Methods for making, methods for using and articles comprising ferromagnetic cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or differential magnetic saturation or any combination of the preceding). Preferably, a first region of the cermet comprises a first hard component having a prescribed binder content and a first magnetic saturation and a second region, juxtaposing or adjoining the first region, comprising a second binder content different than the binder content of the first region and a second magnetic saturation different than that of the first region.Type: GrantFiled: December 23, 1994Date of Patent: July 30, 1996Assignee: Kennametal Inc.Inventor: Edward V. Conley
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Patent number: 4942097Abstract: A cermet cutting tool is provided having a composition containing the following: about 3.5 to about 6.5 w/o (weight percent) nickel; about 4.5 to about 7.5 w/o cobalt, wherein the sum of nickel plus cobalt is between about 8 to 11 w/o; about 20 to about 25 w/o tungsten; about 5 to about 11 w/o molybdenum; up to about 6 w/o tantalum plus niobium; up to about 0.05 w/o chromium; up to about 1 w/o aluminum; and up to about 3 w/o vanadium; with the remainder being essentially titanium, carbon, and nitrogen, wherein at least substantially all the carbon and nitrogen are present as metal compounds selected from the group consisting of metal carbonitrides and mixtures of metal carbonitrides and metal carbides where said metal is selected from the group consisting of tungsten, molybdenum, titanium, tantalum, niobium, vanadium, chromium, their solid solutions and there mixtures.Type: GrantFiled: October 14, 1987Date of Patent: July 17, 1990Assignee: Kennametal Inc.Inventors: Anakkavur T. Santhanam, Edward V. Conley
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Patent number: 4859543Abstract: An earth working tool, such as a mining and construction cutter bit, has an elongated body, and a working element, such as a hard tip attached on a forward end of the body. The working element or hard tip is fabricated of a composition of essentially tungsten carbide of large grain size. The composition has one of a plurality of different percents, X, by weight of cobalt as a binder and one of a plurality of different Rockwell A scale hardnesses, Y. The cobalt percents X and hardnesses Y are paired in sets and have nominal values which satisfy the relationship:Y=91-0.62X,where X is selected from within a range of from about 4.2 to 12.0 percent. Also, the values of Y in the sets of X and Y have upper and lower limits which satisfy the respective relationships:Y=91.1-0.57X and Y=90.0-0.67X,where X is selected from the aforementioned range of from about 4.2 to 12.0 percent.Type: GrantFiled: April 28, 1987Date of Patent: August 22, 1989Assignee: Kennametal Inc.Inventors: Mark S. Greenfield, Edward V. Conley