Patents by Inventor Ted R. Massa
Ted R. Massa 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: 8573901Abstract: A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. The cutting insert is secured within a toolholder having features to secure the insert but at the same time make for efficient removal of the insert from the toolholder.Type: GrantFiled: December 14, 2007Date of Patent: November 5, 2013Assignee: Kennametal Inc.Inventors: Ruy Frota de Souza Filho, Adam South, Gregory A. Hyatt, Paul Brown, Linn Andras, Ted R. Massa, Nitin Chaphalkar
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Patent number: 8256998Abstract: 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: August 30, 2011Date of Patent: September 4, 2012Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted R. Massa
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Patent number: 8256999Abstract: 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: November 8, 2011Date of Patent: September 4, 2012Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted R. Massa
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Patent number: 8234958Abstract: A toolholder with a controllable critical angle, such as a lead, trailing, rake or clearance angles, includes a tool spindle for retaining the toolholder in a tool rest of a machine tool. The machine tool includes at least one linear axis, for example, three mutually perpendicular axes, a rotary axis and a rotation axis. The rotary axis and/or rotation axis is controllable to move to a specified position in synchronization with a movement of one of the linear axes. An adaptor supports a cutting tool that is retained in the adaptor by a clamp. The cutting tool defines a critical angle, such as a lead angle, a trailing angle, a rake angle and a flank clearance angle, wherein the critical angle is corrected as a vector of movement of at least one of the linear axis is changed. In addition, the cutting tool can be positioned on opposite side of a centerline of rotation of the workpiece to effectively double the life of the cutting tool. A method of controlling a toolholder is also disclosed.Type: GrantFiled: July 8, 2008Date of Patent: August 7, 2012Assignee: Kennametal Inc.Inventors: Gregory A. Hyatt, Ted R. Massa, Linn R. Andras, James J. Stohr
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Patent number: 8202025Abstract: 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: June 19, 2012Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted R. Massa
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Patent number: 8142112Abstract: 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: August 30, 2011Date of Patent: March 27, 2012Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted R. Massa
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Patent number: 8092123Abstract: 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: January 10, 2012Assignee: Kennametal Inc.Inventors: Paul D. Prichard, Linn R. Andras, Ted R. Massa
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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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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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Patent number: 7690874Abstract: A rotary tapered tool holder includes a body and an adapter sleeve disposed about a portion of the body. The body and the adapter sleeve have front and rear contact surfaces with different taper angles. The front contact surfaces are optimized for an interference fit and the rear contact surfaces provide an axial stop and support band when the tool holder is assembled into a clamping receptacle. Face contact is achieved between a flange contact surface of the body and a face contact surface of the clamping receptacle.Type: GrantFiled: December 12, 2007Date of Patent: April 6, 2010Assignee: Kennametal Inc.Inventors: Robert Alfred Erickson, William Michael Long, Ted R. Massa
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Patent number: 7611313Abstract: A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. A method, including an assembly with a rotatable insert mounted to a toolholder may be utilized to achieve this result.Type: GrantFiled: December 28, 2006Date of Patent: November 3, 2009Assignee: Kennametal Inc.Inventors: Gregory A. Hyatt, Linn R. Andras, Ted R. Massa
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Publication number: 20090155011Abstract: A rotary tapered tool holder includes a body and an adapter sleeve disposed about a portion of the body. The body and the adapter sleeve have front and rear contact surfaces with different taper angles. The front contact surfaces are optimized for an interference fit and the rear contact surfaces provide an axial stop and support band when the tool holder is assembled into a clamping receptacle. Face contact is achieved between a flange contact surface of the body and a face contact surface of the clamping receptacle.Type: ApplicationFiled: December 12, 2007Publication date: June 18, 2009Inventors: Robert Alfred Erickson, William Michael Long, Ted R. Massa
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Publication number: 20090136309Abstract: A chip evacuation device for evacuating chips from a workpiece is disclosed. The chip evacuation device includes a sleeve having a first end and a second end with a sidewall extending therebetween. The sidewall defines an interior between the first end and the second end and has a moveably biased portion. The first end is structured to contact the workpiece, and defines at least one vent hold extending through the sidewall adjacent the workpiece. The second end of the sleeve is structured to receive at least a portion of the cutting tool therethrough. The chip evacuation device also includes a vacuum apparatus in flow communication with the interior of the sleeve. A machine tool having a tool bit and a chip evacuation device surrounding the tool bit is also disclosed.Type: ApplicationFiled: November 28, 2007Publication date: May 28, 2009Inventors: George W. Coulston, Thomas O. Muller, Ted R. Massa
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Publication number: 20080271581Abstract: A toolholder with a controllable critical angle, such as a lead, trailing, rake or clearance angles, includes a tool spindle for retaining the toolholder in a tool rest of a machine tool. The machine tool includes at least one linear axis, for example, three mutually perpendicular axes, a rotary axis and a rotation axis. The rotary axis and/or rotation axis is controllable to move to a specified position in synchronization with a movement of one of the linear axes. An adaptor supports a cutting tool that is retained in the adaptor by a clamp. The cutting tool defines a critical angle, such as a lead angle, a trailing angle, a rake angle and a flank clearance angle, wherein the critical angle is corrected as a vector of movement of at least one of the linear axis is changed. In addition, the cutting tool can be positioned on opposite side of a centerline of rotation of the workpiece to effectively double the life of the cutting tool. A method of controlling a toolholder is also disclosed.Type: ApplicationFiled: July 8, 2008Publication date: November 6, 2008Applicant: KENNAMETAL INC.Inventors: Gregory A. Hyatt, Ted R. Massa, Linn R. Andras, James J. Stohr
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Publication number: 20080232909Abstract: A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. The cutting insert is secured within a toolholder having features to secure the insert but at the same time make for efficient removal of the insert from the toolholder.Type: ApplicationFiled: December 14, 2007Publication date: September 25, 2008Applicant: Kennametal Inc.Inventors: Ruy Frota de Souza Filho, Adam South, Gregory A. Hyatt, Paul Brown, Linn Andras, Ted R. Massa, Nitin Chaphalkar
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Publication number: 20080232911Abstract: A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. A method, including an assembly with a rotatable insert mounted to a toolholder may be utilized to achieve this result.Type: ApplicationFiled: March 24, 2008Publication date: September 25, 2008Inventors: Gregory A. Hyatt, Adam South, Ruy Frota de Souza Filho, Paul Brown, Linn Andras, Ted R. Massa
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Patent number: 7416372Abstract: A toolholder (50) with a controllable critical angle, such as a lead, trailing, rake or clearance angles, includes a tool spindle (42a) for retaining the toolholder in a tool rest (42) of a machine tool. The machine tool (10) includes at least one linear axis, for example, three mutually perpendicular axes, a rotary axis and a rotation axis. The rotary axis and/or rotation axis is controllable to move to a specified position in synchronization with a movement of one of the linear axes. An adaptor (54) supports a cutting tool (56) that is retained in the adaptor by a clamp (58). The cutting tool (56) defines a critical angle, such as a lead angle, a trailing angle, a rake angle and a flank clearance angle, wherein the critical angle is corrected as a vector of movement of at least one of the linear axis is changed. In addition, the cutting tool (56) can be positioned on opposite side of a centerline of rotation of the workpiece to effectively double the life of the cutting tool.Type: GrantFiled: September 2, 2003Date of Patent: August 26, 2008Assignee: Kennametal Inc.Inventors: Gregory A. Hyatt, Ted R. Massa, Linn R. Andras, James J. Stohr
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Patent number: 7357608Abstract: A rotary tapered tool holder includes a shank including a front mounting portion and an aperture. An expansion sleeve is disposed about a portion of the shank. The expansion sleeve includes a front mounting portion adjacent the front mounting portion of the shank. An expansion rod is disposed within the shank and includes a pocket or cam surface. An expansion pin is at least partially received in the aperture of the shank. The expansion pin has a first end or cam surface for engaging the pocket of the expansion rod, and a second end for engaging the front mounting portion of the expansion sleeve. A force applied to the expansion rod in a first direction causes the expansion pin to move in a second direction and into positive engagement with the front mounting portion of the expansion sleeve, thereby forcing the expansion sleeve into positive contact with a tapered bore of a spindle of the tool holder.Type: GrantFiled: November 15, 2005Date of Patent: April 15, 2008Assignee: Kennametal Inc.Inventors: Robert A. Erickson, Ted R. Massa
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Patent number: 7357697Abstract: The invention relates to abrasive water jet systems comprising an abrasive water jet mixing tube having a longitudinal bore lined with a superhard material, including such systems which use cubic boron carbide (CBN), diamond, or other materials with a hardness greater than that of alumina as the abrasive material. The invention also comprises methods of using an AWJ system having a mixing tube having a longitudinal bore lined with a superhard material. Some embodiments include AWJ mixing tubes comprised of a plurality of connected components. Such connections may be disconnectable.Type: GrantFiled: May 24, 2002Date of Patent: April 15, 2008Assignee: Kennametal Inc.Inventors: Ted R. Massa, John J. Prizzi, David R. Siddle