Charles Lisle Conway

US Patent:

7547163, Jun 16, 2009

Filed:

Jul 16, 2007

Appl. No.:

11/879189

Inventors:

Michael G. Morrison - Tarrs PA, US
Lance D. Brunetto - Greensburg PA, US
Charles Lisle Conway - Ligonier PA, US

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23B 27/16
B23B 29/04

US Classification:

407103, 407105, 407107

Abstract:

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.

US Patent:

8057131, Nov 15, 2011

Filed:

Jan 17, 2009

Appl. No.:

12/355778

Inventors:

Charles Lisle Conway - Ligonier PA, US
Michael Glenn Morrison - Tarrs PA, US
Lance David Brunetto - Greensburg PA, US

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23B 27/16
B23B 29/04

US Classification:

407103, 407105, 407107

Abstract:

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.

US Patent:

8388268, Mar 5, 2013

Filed:

Mar 7, 2011

Appl. No.:

13/041623

Inventors:

Nicholas J. Henry - Latrobe PA, US
Charles L. Conway - Ligonier PA, US

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23B 27/10
B23B 27/04

US Classification:

407 11, 407117, 407101, 407109

Abstract:

A toolholder has a head region, which contains a slot separating the head region into a lower section and an upper section, with a lower seat and an upper section to retain a cutting insert. The head region contains a coolant entrance passage, which receives coolant from a coolant source, and a coolant delivery passage, which discharges coolant toward a cutting insert. The head region further contains a fastener bore, which receives a fastener. The fastener has an axial fastener bore which provides fluid communication between the coolant entrance passage and a coolant reservoir between the fastener and the fastener bore. The coolant delivery passage communicates with the coolant reservoir to receive coolant, which passed from the coolant entrance passage and through the axial fastener bore into the coolant reservoir.

US Patent:

8439608, May 14, 2013

Filed:

Sep 1, 2010

Appl. No.:

12/873516

Inventors:

Shi Chen - Huntingdon PA, US
Nicholas Joseph Henry - Latrobe PA, US
Charles Lisle Conway - Ligonier PA, US
Kent Peter Mizgalski - Stahlstown PA, US
Joseph V. Nelson - Greensburg PA, US
Linn R. Andras - Latrobe PA, US
Thomas O. Muller - Greensburg PA, US
Paul D. Prichard - Greensburg PA, US
Brad D. Hoffer - White PA, US

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23B 27/10

US Classification:

407 11, 407113, 407103, 408 56

Abstract:

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.

US Patent:

20110020073, Jan 27, 2011

Filed:

Sep 2, 2010

Appl. No.:

12/874591

Inventors:

Shi Chen - Huntingdon PA, US
Nicholas Henry - Latrobe PA, US
Charles Lisle Conway - Ligonier PA, US
Kent P. Mizgaiski - Stahlstown PA, US
Paul D. Prichard - Greensburg PA, US
Linn R. Andras - Latrobe PA, US
Ted R Massa - Greensburg PA, US

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23B 27/10
B23B 27/16
B23B 27/22

US Classification:

407 11, 407103, 407107, 407115

Abstract:

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. The longitudinal locking pin bore opening to the diverter plate whereby coolant flows into the diverter bowl and through the diverter channel into the radial coolant trough toward the corner cutting edge region.