Patents by Inventor Michael Schuffenhauer
Michael Schuffenhauer 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: 9168601Abstract: A multi-flute reamer includes a cutting portion having a forward end and a rearward end, and a chip flute with a chip gash opening, and a cutting insert mounted on the cutting portion. A leading edge is formed at an intersection between a top surface and a radially-outward side surface, and a front edge is formed at an intersection between the top surface and a forward side surface. The cutting insert includes a rounded lead cutting edge formed at the intersection between the leading edge and the front edge, and the top surface includes a chip breaker having a bottom surface formed with a radius, R.Type: GrantFiled: November 17, 2010Date of Patent: October 27, 2015Assignee: KENNAMETAL INC.Inventors: Li Ning, Michael Schuffenhauer, Bernhard Eckl, Xaver Spichtinger, Armin Josef Zimmermann, Thilo Klaus Juergen Mueller
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Publication number: 20150266120Abstract: A reamer has a shank made of steel and a cutting body made of a harder material, wherein the cutting body forms the outer circumference of the reamer in the region of the workpiece side end and has all the cutting ribs.Type: ApplicationFiled: September 27, 2013Publication date: September 24, 2015Applicant: Kennametal Inc.Inventors: Armin Josef Zimmerman, Robert Meyer, Michael Schuffenhauer
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Patent number: 9079254Abstract: The invention relates to a hydraulic expansion chuck having an end on the tool side; and an end on the machine side. A shaft is disposed on the end on the machine side for clamping the expansion chuck in a machine tool. An expanding bushing is disposed on the end on the tool side and surrounded by a pressure chamber and can be radially deformed for clamping a tool under the action of a pressure medium received in the pressure chamber.Type: GrantFiled: October 2, 2009Date of Patent: July 14, 2015Assignee: KENNAMETAL INC.Inventors: Michael Schuffenhauer, Josef Herud
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Patent number: 9073124Abstract: A setting mechanism for a settable tool holder adapter includes a differential screw having two thread portions of differing pitch but identical direction of hand and a pressure piece having a pressure piece thread. One of the thread portions of the differential screw is screwed into the thread of the pressure piece.Type: GrantFiled: June 20, 2012Date of Patent: July 7, 2015Assignee: KENNAMETAL INCInventors: Michael Schuffenhauer, Michael Hacker
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Patent number: 8845242Abstract: A coolant distributor for use with a cutting head of a machine tool that is adapted to be rotated about a rotational axis. The coolant distributor comprises a generally cylindrical body adapted to be coupled to the cutting head about the rotational axis, the generally cylindrical body having a first end and an opposite second end, the first end being disposed adjacent the cutting head when the generally cylindrical body is coupled to the cutting head. At least one feed passage is formed in the generally cylindrical body, the feed passage having a first end disposed proximate the first end of the generally cylindrical body and a second end disposed proximate the second end of the generally cylindrical body. A deflecting element is disposed in the feed passage proximate the second end of the feed passage. An outflow passage is connected to the feed passage and disposed obliquely to the rotational axis.Type: GrantFiled: April 21, 2011Date of Patent: September 30, 2014Assignee: Kennametal Inc.Inventors: Michael Schuffenhauer, Ramona Beck
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Patent number: 8764354Abstract: The invention relates to a cutting tool for a machine tool, comprising a cutting head (1), a shaft (2), and a coupling which removably fixes the cutting head (1) to the shaft (2), said coupling comprising a coupling pin (6) on the back of the cutting head (7) and a receptacle (5) in the shaft (2), which receptacle is complementary to the coupling pin (6) and accommodates the coupling pin (6) when the coupling is closed, comprising a central coolant channel (20) in the shaft (2), which separates into two sub-channels (12) in the region of the receptacle (5), the two sub-channels (12) flanking the receptacle (5) in the wall thereof and opening into the flat contact surface (10) annularly surrounding the opening edge (8) of the receptacle (5), and comprising a flat collar (16) on the back of the cutting head (7) having an annular distribution groove (15). The tool also comprises at least one coolant hole (19) connecting the cutting edges (14) on the cutting head (1) to the distribution groove (15).Type: GrantFiled: March 10, 2010Date of Patent: July 1, 2014Assignee: Kennametal Inc.Inventors: Michael Schuffenhauer, Bernhard Eckl, Xaver Spichtinger, Armin Zimmermann
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Publication number: 20140161551Abstract: In order to ensure highly precise setting, in particular readjustment of the radial position of the blade in the case of a rotary tool, in particular a reamer, an adjustment element, in particular in the form of an adjustment screw, having a cone formed by the screw head is inserted into an end-side receptacle in a cutting section, said cone being provided with a friction-reducing coating.Type: ApplicationFiled: December 6, 2013Publication date: June 12, 2014Inventors: Robert Meyer, Michael Schuffenhauer, Armin Josef Zimmermann, Bettina Wagner
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Publication number: 20130051935Abstract: A machining tool includes a holder and a cutting head which can be screwed into the holder. The cutting head includes a cutting-edge region and a coupling region. The coupling region includes a flat contact area facing the holder, a cylindrical thread carrier with an external thread adjoining the flat contact area, and a clamping cone adjoining the thread carrier. The holder includes a planar counter-contact area disposed adjacent the flat contact area of the coupling region, a cylindrical internal thread adjoining the planar counter-contact area, and a hollow-conical cone contact area next to the internal thread.Type: ApplicationFiled: January 13, 2011Publication date: February 28, 2013Applicant: KENNAMETAL, INC.Inventors: Michael Schuffenhauer, Rene Xylander
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Publication number: 20130001900Abstract: A setting mechanism for a settable tool holder adapter includes a differential screw having two thread portions of differing pitch but identical direction of hand and a pressure piece having a pressure piece thread. One of the thread portions of the differential screw is screwed into the thread of the pressure piece.Type: ApplicationFiled: June 20, 2012Publication date: January 3, 2013Inventors: MICHAEL SCHUFFENHAUER, MICHAEL HACKER
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Publication number: 20120121344Abstract: The invention relates to a cutting tool for a machine tool, comprising a cutting head (1), a shaft (2), and a coupling which removably fixes the cutting head (1) to the shaft (2), said coupling comprising a coupling pin (6) on the back of the cutting head (7) and a receptacle (5) in the shaft (2), which receptacle is complementary to the coupling pin (6) and accommodates the coupling pin (6) when the coupling is closed, comprising a central coolant channel (20) in the shaft (2), which separates into two sub-channels (12) in the region of the receptacle (5), the two sub-channels (12) flanking the receptacle (5) in the wall thereof and opening into the flat contact surface (10) annularly surrounding the opening edge (8) of the receptacle (5), and comprising a flat collar (16) on the back of the cutting head (7) having an annular distribution groove (15). The tool also comprises at least one coolant hole (19) connecting the cutting edges (14) on the cutting head (1) to the distribution groove (15).Type: ApplicationFiled: March 10, 2010Publication date: May 17, 2012Applicant: KENNAMETAL INC.Inventors: Michael Schuffenhauer, Bernhard Eckl, Xaver Spichtinger, Armin Zimmermann
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Publication number: 20120121352Abstract: A multi-flute reamer includes a cutting portion having a forward end and a rearward end, and a chip flute with a chip gash opening, and a cutting insert mounted on the cutting portion. A leading edge is formed at an intersection between a top surface and a radially-outward side surface, and a front edge is formed at an intersection between the top surface and a forward side surface. The cutting insert includes a rounded lead cutting edge formed at the intersection between the leading edge and the front edge, and the top surface includes a chip breaker having a bottom surface formed with a radius, R.Type: ApplicationFiled: November 17, 2010Publication date: May 17, 2012Applicant: KENNAMETAL INC.Inventors: Li Ning, Michael Schuffenhauer, Bernhard Eckl, Xaver Spichtinger, Armin Josef Zimmermann, Thilo Klaus Juergen Mueller
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Publication number: 20110262234Abstract: A coolant distributor for use with a cutting head of a machine tool that is adapted to be rotated about a rotational axis. The coolant distributor comprises a generally cylindrical body adapted to be coupled to the cutting head about the rotational axis, the generally cylindrical body having a first end and an opposite second end, the first end being disposed adjacent the cutting head when the generally cylindrical body is coupled to the cutting head. At least one feed passage is formed in the generally cylindrical body, the feed passage having a first end disposed proximate the first end of the generally cylindrical body and a second end disposed proximate the second end of the generally cylindrical body. A deflecting element is disposed in the feed passage proximate the second end of the feed passage. An outflow passage is connected to the feed passage and disposed obliquely to the rotational axis.Type: ApplicationFiled: April 21, 2011Publication date: October 27, 2011Inventors: MICHAEL SCHUFFENHAUER, Ramona Beck
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Publication number: 20110175300Abstract: The invention relates to a hydraulic expansion chuck having an end on the tool side; and an end on the machine side. A shaft is disposed on the end on the machine side for clamping the expansion chuck in a machine tool. An expanding bushing is disposed on the end on the tool side and surrounded by a pressure chamber and can be radially deformed for clamping a tool under the action of a pressure medium received in the pressure chamber.Type: ApplicationFiled: October 2, 2009Publication date: July 21, 2011Applicant: KENNAMETAL INC.Inventors: Michael Schuffenhauer, Josef Herud
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Patent number: 7168512Abstract: A cutting insert 1, 1?, comprising opposite insert planes E1, E2 of a base 2 of one base area 3 wherein a conical surface section 4a of a lateral face 4 and the base area 3 facing the same form an acute angle alpha while forming a cutting edge 5, while a planar surface section 4b of the same lateral face 4 forms an obtuse angle beta with the opposite base area 3. The cone axis 6 of the conical surface area 4a lying in the insert plane E1, E2 runs off-set in parallel to the center insert axis 7 lying in the same insert plane E1, E2 while forming an off-center arcuate profile of the cutting edge 5. A milling cutter 17 comprising a number of such cutting inserts 1, 1? is characterized in that a cutting insert 1, 1? preferably disposed on the periphery of the center line M of a tool support 16 is off-set from the center line M by an angle phi equal to 5±3 degrees.Type: GrantFiled: March 5, 2004Date of Patent: January 30, 2007Assignee: Kennametal Inc.Inventors: Michael Schuffenhauer, Steffen Kranz, Werner Boguth
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Publication number: 20050023044Abstract: A cutting insert 1, 1?, comprising opposite insert planes E1, E2 of a base 2 of one base area 3 wherein a conical surface section 4a of a lateral face 4 and the base area 3 facing the same form an acute angle alpha while forming a cutting edge 5, while a planar surface section 4b of the same lateral face 4 forms an obtuse angle beta with the opposite base area 3. The cone axis 6 of the conical surface area 4a lying in the insert plane E1, E2 runs off-set in parallel to the center insert axis 7 lying in the same insert plane E1, E2 while forming an off-center arcuate profile of the cutting edge 5. A milling cutter 17 comprising a number of such cutting inserts 1, 1? is characterized in that a cutting insert 1, 1? preferably disposed on the periphery of the center line M of a tool support 16 is off-set from the center line M by an angle phi equal to 5±3 degrees. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.Type: ApplicationFiled: March 5, 2004Publication date: February 3, 2005Inventors: Michael Schuffenhauer, Steffen Kranz, Werner Boguth
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Patent number: 6142485Abstract: A chuck for rotary tools with a cylindrical chucking shank encloses such shank with a basic body. A radial through-hole in basic body serves to receive a clamping screw which applies pressure to a clamping member which is seated inside a through-hole between the clamping screw and chucking shank. A clamping member is provided with a radial projection and the through-hole with a cross-sectional narrowing along its inner end. In between the radial projection and the narrowing is an elastically compressible spring element which, due to its return force, lifts the clamping element away from the chucking shank and pushes it back into the through-hole when it is not under tension from the clamping screw.Type: GrantFiled: April 30, 1999Date of Patent: November 7, 2000Assignee: Kennametal Inc.Inventors: Gebhard Muller, Michael Schuffenhauer, Martin Prey
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Patent number: 5915895Abstract: A rotary tool for drilling and chamfering, which takes place in one common advance, essentially comprises a base body, a drill clamped centered therein and a chamfering tool disposed on the end of the base body toward the drill tip and having a cutter body tip disposed next to the flank of the lateral free face of the drill. The chamfering tool can be radially adjusted in relation to the drill in a direction pointing at right angles in respect to the drill axis.Type: GrantFiled: December 22, 1994Date of Patent: June 29, 1999Assignee: Kennametal Hertel AG Werkzeuge and HartstoffeInventors: Horst Jager, Michael Schuffenhauer, Gebhard Muller, Bernhard Borschert, Ulrich Krenzer