Patents by Inventor Paul D. Prichard
Paul D. Prichard 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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Publication number: 20110311324Abstract: A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.Type: ApplicationFiled: August 30, 2011Publication date: December 22, 2011Applicant: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted Richard Massa
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Patent number: 8079783Abstract: A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet.Type: GrantFiled: October 13, 2010Date of Patent: December 20, 2011Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras
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Patent number: 8079784Abstract: A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet.Type: GrantFiled: October 13, 2010Date of Patent: December 20, 2011Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras
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Patent number: 8057130Abstract: A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.Type: GrantFiled: October 7, 2010Date of Patent: November 15, 2011Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted R. Massa
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Patent number: 8033763Abstract: A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.Type: GrantFiled: October 7, 2010Date of Patent: October 11, 2011Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted R. Massa
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Patent number: 7997832Abstract: A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet.Type: GrantFiled: October 13, 2010Date of Patent: August 16, 2011Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras
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Patent number: 7963729Abstract: A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet.Type: GrantFiled: January 18, 2007Date of Patent: June 21, 2011Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras
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Publication number: 20110033250Abstract: A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet.Type: ApplicationFiled: October 13, 2010Publication date: February 10, 2011Applicant: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras
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Publication number: 20110033249Abstract: A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.Type: ApplicationFiled: October 7, 2010Publication date: February 10, 2011Applicant: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted Richard Massa
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Patent number: 7883299Abstract: A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.Type: GrantFiled: January 18, 2007Date of Patent: February 8, 2011Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted Richard Massa
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Publication number: 20110027022Abstract: A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.Type: ApplicationFiled: October 7, 2010Publication date: February 3, 2011Applicant: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted Richard Massa
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Publication number: 20110027024Abstract: A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet.Type: ApplicationFiled: October 13, 2010Publication date: February 3, 2011Applicant: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras
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Publication number: 20110027023Abstract: A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet.Type: ApplicationFiled: October 13, 2010Publication date: February 3, 2011Applicant: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras
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Publication number: 20110020076Abstract: A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.Type: ApplicationFiled: October 7, 2010Publication date: January 27, 2011Applicant: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted Richard Massa
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Publication number: 20110020073Abstract: A cutting assembly that is useful in an operation for chipforming removal of material from a workpiece. The cutting assembly includes a holder having a seat and containing a coolant delivery passage. A locking pin, which has a longitudinal locking pin bore, is affixed to the seat so the longitudinal locking pin bore is in communication with the coolant delivery passage. A cutting insert has a rake surface, a corner cutting edge region, a central cutting insert aperture, and a radial coolant trough with an orientation toward the corner cutting edge region. At least a portion of the locking pin is within the central cutting insert aperture. A clamp assembly attaches to the holder and engages the cutting insert. The clamp assembly has a diverter plate, which has a bottom surface defining a diverter bowl and a diverter channel.Type: ApplicationFiled: September 2, 2010Publication date: January 27, 2011Applicant: Kennametal Inc.Inventors: Shi Chen, Nicholas Henry, Charles Lisle Conway, Kent P. Mizgaiski, Paul D. Prichard, Linn R. Andras, Ted R Massa
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Publication number: 20110020072Abstract: A cutting insert-shim assembly that has a cutting insert with a bottom surface and a plurality of interior coolant passages wherein each interior coolant passage has a coolant inlet in the bottom surface of the cutting insert. The shim has a first side surface and a second side surface and contains a cavity, which communicates with the coolant conduit. The cavity defines a first opening in the first side surface and a second opening in the second side surface. When the shim is in a first condition, the first side surface contacts the bottom surface of the cutting insert and the first opening provides a first level of coolant communication to the interior coolant passages in the cutting insert. When the shim is in a second condition, the second side surface contacts the bottom surface of the cutting insert and the second opening provides a second level of coolant communication to the interior coolant passages in the cutting insert.Type: ApplicationFiled: September 1, 2010Publication date: January 27, 2011Applicant: Kennametal Inc.Inventors: Shi Chen, Nicholas Joseph Henry, Charles Lisle Conway, Kent Peter Mizgalski, Joseph V. Nelson, Linn R. Andras, Thomas O. Muller, Paul D. Prichard, Brad D. Hoffer
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Publication number: 20110020075Abstract: A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.Type: ApplicationFiled: October 7, 2010Publication date: January 27, 2011Applicant: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted Richard Massa
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Patent number: 7802945Abstract: A milling cutter (10) comprises a cutter body (12) having at least two operational annular rings (13, 14). An outer ring (13) is provided for rough milling and includes a plurality of cutting inserts spaced about the periphery of the cutter body. Positioned radially inward of the outer ring (13) is at least one ring (14) comprises a coating of abrasive material. As a result, a workpiece can be both tough and finish milled by a single milling cutter (10) with the rough cutting inserts (18) and the abrasive material.Type: GrantFiled: February 26, 2004Date of Patent: September 28, 2010Assignee: Kennametal Inc.Inventors: Glenn W. Sheffler, Gregory A. Hyatt, Paul D. Prichard, Linn R. Andras
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Patent number: 7625157Abstract: A cutting insert assembly for use in chipforming and material removal wherein the cutting insert assembly is received in a pocket of a cutter body wherein coolant can flow out of a pocket opening contained in the pocket. The cutting insert assembly includes a cutting insert body that presents at least two discrete cutting locations. The cutting insert body contains a coolant entry passage aligned with the pocket opening for coolant to flow through the coolant entry passage. The cutting insert body has a rake surface that contains at least two of the discrete depressions wherein each one of the discrete depressions corresponds to one of the cutting locations. Each one of the discrete depressions extends toward its corresponding cutting location. The assembly includes a diverter that is positioned adjacent to the cutting insert body wherein the diverter has a receiving opening aligned with the coolant entry passage to receive coolant through the coolant entry passage.Type: GrantFiled: January 18, 2007Date of Patent: December 1, 2009Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras
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Publication number: 20080181736Abstract: A milling cutter (10) comprises a cutter body (12) having at least two operational annular rings (13, 14). An outer ring (13) is provided for rough milling and includes a plurality of cutting inserts spaced about the periphery of the cutter body. Positioned radially inward of the outer ring (13) is at least one ring (14) comprises a coating of abrasive material. As a result, a workpiece can be both tough and finish milled by a single milling cutter (10) with the rough cutting inserts (18) and the abrasive material.Type: ApplicationFiled: February 26, 2004Publication date: July 31, 2008Applicant: KENNAMETAL INC.Inventors: Glenn W. Sheffler, Gregory A. Hyatt, Paul D. Prichard, Linn R. Andras