Patents by Inventor Charles Lisle Conway
Charles Lisle Conway 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: 9101985Abstract: 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: GrantFiled: September 2, 2010Date of Patent: August 11, 2015Assignee: KENNAMETAL INC.Inventors: Shi Chen, Nicholas Henry, Charles Lisle Conway, Kent Peter Mizgalski
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Patent number: 8439608Abstract: 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: GrantFiled: September 1, 2010Date of Patent: May 14, 2013Assignee: 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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Patent number: 8057131Abstract: A clamping tool holder includes a tool holder body and a clamp for clamping a cutting insert. The clamp causes the cutting insert to press against the bottom and the side walls of an insert-receiving pocket of the tool holder body. The tool holder body has an inclined surface sloping inward in a direction away from the insert-receiving pocket. The clamp has an inclined surface that acts as a ramp with the inclined surface of the tool holder body. When a clamp screw is tightened, a nub of the clamp engages only an inside rearward surface of a mounting bore of the insert along a line of contact and exerts a force downward and rearward on the insert. In addition, only a forward lower face of a head portion the clamp screw engages a top surface of the clamp.Type: GrantFiled: January 17, 2009Date of Patent: November 15, 2011Assignee: Kennametal Inc.Inventors: Charles Lisle Conway, Michael Glenn Morrison, Lance David Brunetto
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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: 20100183385Abstract: A clamping tool holder includes a tool holder body and a clamp for clamping a cutting insert. The clamp causes the cutting insert to press against the bottom and the side walls of an insert-receiving pocket of the tool holder body. The tool holder body has an inclined surface sloping inward in a direction away from the insert-receiving pocket. The clamp has an inclined surface that acts as a ramp with the inclined surface of the tool holder body. When a clamp screw is tightened, a nub of the clamp engages only an inside rearward surface of a mounting bore of the insert along a line of contact and exerts a force downward and rearward on the insert. In addition, only a forward lower face of a head portion the clamp screw engages a top surface of the clamp.Type: ApplicationFiled: January 17, 2009Publication date: July 22, 2010Applicant: KENNAMETAL INC.Inventors: Charles Lisle Conway, Michael Glenn Morrison, Lance David Brunetto
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Patent number: 7547163Abstract: A clamping tool holder includes a tool holder body and a clamp for clamping a cutting insert. The clamp causes the cutting insert to press against the bottom and the side walls of an insert-receiving pocket of the tool holder body. The tool holder body has an inclined surface sloping inward in a direction away from the insert-receiving pocket. The clamp has an inclined surface that acts as a ramp with the inclined surface of the tool holder body. A guide pin prevents the clamp from twisting during tightening or loosening of the clamp. When a clamp screw is tightened, a nub of the clamp engages only an inside rearward surface of a mounting bore of the insert along a line of contact and the top surface of the cutting insert. In addition, only a forward lower face of a head portion of the clamp screw engages a top surface of the clamp.Type: GrantFiled: July 16, 2007Date of Patent: June 16, 2009Assignee: Kennametal Inc.Inventors: Michael G. Morrison, Lance D. Brunetto, Charles Lisle Conway
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Publication number: 20090022553Abstract: A clamping tool holder includes a tool holder body and a clamp for clamping a cutting insert. The clamp causes the cutting insert to press against the bottom and the side walls of an insert-receiving pocket of the tool holder body. The tool holder body has an inclined surface sloping inward in a direction away from the insert-receiving pocket. The clamp has an inclined surface that acts as a ramp with the inclined surface of the tool holder body. A guide pin prevents the clamp from twisting during tightening or loosening of the clamp. When a clamp screw is tightened, a nub of the clamp engages only an inside rearward surface of a mounting bore of the insert along a line of contact and the top surface of the cutting insert. In addition, only a forward lower face of a head portion of the clamp screw engages a top surface of the clamp.Type: ApplicationFiled: July 16, 2007Publication date: January 22, 2009Inventors: Michael G. Morrison, Lance D. Brunetto, Charles Lisle Conway