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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Publication number: 20240024958Abstract: A cutting tool includes a base body and a cutting head at least partially disposed within a modular pocket of the base body. The modular pocket is formed by at least one wall section removably attached to the base body. In one variation, a non-removable portion of the base body also forms part of the modular pocket. In another variation, the modular pocket is formed by two removable wall sections on opposite sides of the modular pocket. In yet another variation, the removable wall sections include a clamping portion to exert a downward force on the cutting head to enable mounting the cutting head in the modular pocket using an interference fit.Type: ApplicationFiled: July 20, 2022Publication date: January 25, 2024Applicant: Kennametal Inc.Inventors: Patrick Kuhlemann, Michael Schuffenhauer, Marcelo Euripedes da Silva, Ruy Frota de Souza Filho
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Publication number: 20240024967Abstract: A modular cutting tool includes a base body, an intermediate body removably attached to the base body, and a cutting head at least partially disposed within a pocket of the intermediate body. A tooling tree allows a user to select a different combination of the base body, the intermediate body and the cutting head of the cutting tool based on desired physical properties of each component.Type: ApplicationFiled: July 20, 2022Publication date: January 25, 2024Applicant: Kennametal Inc.Inventors: Marcelo Euripedes da Silva, Ruy Frota de Souza Filho, Patrick Kuhlemann, Michael Schuffenhauer
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Publication number: 20240024961Abstract: Expansion sleeves are disclosed comprising a body and a flange. The body may be generally cylindrical and includes an inner wall, an outer wall integrally formed with the inner wall, and a pressurized fluid chamber located radially between and encapsulated in the inner wall and the outer wall. The front flange extends radially outward from the outer wall of the body. The front flange may comprise a tool support connection structured and arranged to fasten the front flange to a tool support member. The tool support member may include a pressurized fluid system that communicates with the pressurized fluid chamber of the expansion sleeve. The expansion sleeves may be secured to the tool support member by mechanical fasteners, threading, or combinations thereof. During operation, pressurized fluid in the tool support member communicates with the pressurized fluid chamber of the expansion sleeve to clamp a tool shank.Type: ApplicationFiled: July 22, 2022Publication date: January 25, 2024Inventors: Santosh B. Boregowda, Ruy Frota de Souza Filho, Dominik Schmid, Michael Schuffenhauer, Josef Herud
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Publication number: 20240001458Abstract: The invention relates to a rotary tool (2) extending longitudinally from a shank region (8) to a front-facing end region along an axis of rotation (6) and having a carrier (4) with a plate seat (14) and a cutting insert (16) that can be replaceably inserted therein. The cutting insert (16) as well as the plate seat (14) each have radial and axial contact surfaces (40A, B) which are strained against one another with the aid of a clamping screw (50) during assembly of the cutting insert (16). According to the invention, it is provided that the axial contact surfaces (40A, B) and in particular also the radial contact surfaces (42A, B) are inclined in a V shape on one side of the cutting insert (16) and on the other side of the plate seat (14), so that a centering effect is automatically produced during assembly.Type: ApplicationFiled: June 23, 2023Publication date: January 4, 2024Inventors: Michael Schuffenhauer, Bemhard Eckl, Berthold Zeug
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Patent number: 11839920Abstract: A modular drill including a shank having a shank bore therein, a guide pin tip disposed in the shank bore, a cutting tip, and a connection shaft coupled to the cutting tip, the connection shaft having a connection shaft sidewall and a guide path therein for guiding the guide pin tip therethrough while the connection shaft moves through the shank bore.Type: GrantFiled: June 28, 2021Date of Patent: December 12, 2023Assignee: KENNAMETAL INC.Inventors: Marcelo Euripedes da Silva, Patrick Kuhlemann, Christoph Gey, Michael Schuffenhauer, Berthold Heinrich Zeug
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Publication number: 20220410278Abstract: A modular drill including a shank having a shank bore therein, a guide pin tip disposed in the shank bore, a cutting tip, and a connection shaft coupled to the cutting tip, the connection shaft having a connection shaft sidewall and a guide path therein for guiding the guide pin tip therethrough while the connection shaft moves through the shank bore.Type: ApplicationFiled: June 28, 2021Publication date: December 29, 2022Inventors: Marcelo Euripedes da Silva, Patrick Kuhlemann, Christoph Gey, Michael Schuffenhauer, Berthold Heinrich Zeug
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Patent number: 11529687Abstract: A rotary cutting tool comprises a tool body having an axis of rotation (L) and a cylindrical shank, which comprises at least one locking groove via which the cutting tool can be axially locked in a tool holder. The locking groove has an axial groove, which extends from an axial end on the receiving side in axial direction (A) to an axial stop, and a circumferential groove, which is laterally adjacent to the axial groove and extends away from the axial stop and the axial groove in circumferential direction (U) toward a rotation stop. The circumferential groove comprises a first end face and a second end face opposite to said first end face, both of which extend in a plane that is perpendicular to the axis of rotation (L). A tool assembly having such a rotary cutting tool and a tool holder having a cylindrical tool receptacle for the cutting tool is provided as well.Type: GrantFiled: December 15, 2020Date of Patent: December 20, 2022Assignee: KENNAMETAL, INC.Inventor: Michael Schuffenhauer
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Publication number: 20220339710Abstract: The described rotary cutting tool comprises a tool body extending along a rotational axis and a cutting insert comprising at least one cutting edge. The tool body is mounted in a mounting pocket delimited by two clamping fingers. A clamping finger bore is provided on each of the clamping fingers. The cutting insert also has a through bore. A holding element is arranged in the clamping finger bores and in the through bore to couple the cutting insert to the tool body. A section of the holding element located within the through bore is crowned. A holding element for such a rotary cutting tool is also presented.Type: ApplicationFiled: April 22, 2022Publication date: October 27, 2022Inventor: Michael SCHUFFENHAUER
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Publication number: 20210178490Abstract: A rotary cutting tool comprises a tool body having an axis of rotation (L) and a cylindrical shank, which comprises at least one locking groove via which the cutting tool can be axially locked in a tool holder. The locking groove has an axial groove, which extends from an axial end on the receiving side in axial direction (A) to an axial stop, and a circumferential groove, which is laterally adjacent to the axial groove and extends away from the axial stop and the axial groove in circumferential direction (U) toward a rotation stop. The circumferential groove comprises a first end face and a second end face opposite to said first end face, both of which extend in a plane that is perpendicular to the axis of rotation (L). A tool assembly having such a rotary cutting tool and a tool holder having a cylindrical tool receptacle for the cutting tool is provided as well.Type: ApplicationFiled: December 15, 2020Publication date: June 17, 2021Inventor: Michael Schuffenhauer
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Publication number: 20200254545Abstract: One-piece reamer cutting discs including integral engagement and cutting portions are disclosed. The engagement portion may allow for torque transmission and alignment of the reamer cutting disc on a reamer tool body. The integral engagement portion and cutting portion allows for the cutting portion to be provided closer to the end of the tool body. The one-piece reamer cutting discs may be mounted on a tool body having coolant outlets that direct coolant from the tool body to the exterior surface of the cutting disc.Type: ApplicationFiled: February 8, 2019Publication date: August 13, 2020Inventors: Li NING, Michael SCHUFFENHAUER
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Patent number: 10576552Abstract: The rotary tool has two coupling parts, namely a carrier and a cutting head having a front end face. The carrier has a pin seat into which a coupling pin of the cutting head is inserted. Effective stop faces are formed on the pin seat and on the coupling pin in the axial direction for axial pull-out protection. For a design that is as simple as possible, in particular in terms of grinding, a side face adjoins a respective stop face of the coupling pin and, when viewed in the axial direction, freely extends to the end face. In particular, the side face forms a torque face. For reliable clamping attachment, in particular with larger nominal diameters (D), a separating slot is made in the carrier and a clamping screw is inserted into it, both of which serve to fix the cutting head in the pin seat.Type: GrantFiled: March 9, 2018Date of Patent: March 3, 2020Assignee: KENNAMETAL INC.Inventors: Horst Manfred Jäger, Michael Schuffenhauer, Jüergen Schwäegerl, Berthold Heinrich Zeug
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Patent number: 10493545Abstract: 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: GrantFiled: October 9, 2017Date of Patent: December 3, 2019Assignee: KENNAMETAL INC.Inventors: Armin Josef Zimmerman, Robert Meyer, Michael Schuffenhauer
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Patent number: 10293413Abstract: 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: July 13, 2015Date of Patent: May 21, 2019Assignee: KENNAMENTAL INCInventors: Michael Schuffenhauer, Josef Herud
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Patent number: 10189090Abstract: A drilling tool with: a shaft; a seat at one end of the shaft; a drill bit, which is arranged on the seat; and a clamping section, which is provided on the shaft and can interact with the drill bit. Also provided is a tensioning screw, which is screwed into the shaft and comprises an expanding section as well as a contact section. The expanding section interacts with the clamping section, and the contact section interacts with the drill bit.Type: GrantFiled: March 16, 2017Date of Patent: January 29, 2019Assignee: KENNAMETAL INC.Inventor: Michael Schuffenhauer
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Publication number: 20180264558Abstract: The rotary tool has two coupling parts, namely a carrier and a cutting head having a front end face. The carrier has a pin seat into which a coupling pin of the cutting head is inserted. Effective stop faces are formed on the pin seat and on the coupling pin in the axial direction for axial pull-out protection. For a design that is as simple as possible, in particular in terms of grinding, a side face adjoins a respective stop face of the coupling pin and, when viewed in the axial direction, freely extends to the end face. In particular, the side face forms a torque face. For reliable clamping attachment, in particular with larger nominal diameters (D), a separating slot is made in the carrier and a clamping screw is inserted into it, both of which serve to fix the cutting head in the pin seat.Type: ApplicationFiled: March 9, 2018Publication date: September 20, 2018Inventors: Horst Manfred Jäger, Michael Schuffenhauer, Jüergen Schwäegerl, Berthold Heinrich Zeug
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Publication number: 20180029150Abstract: 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: October 9, 2017Publication date: February 1, 2018Inventors: Armin Josef Zimmerman, Robert Meyer, Michael Schuffenhauer
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Patent number: 9827619Abstract: 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: GrantFiled: January 13, 2011Date of Patent: November 28, 2017Assignee: KENNAMETAL INC.Inventors: Michael Schuffenhauer, Rene Xylander
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Patent number: 9802260Abstract: 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: GrantFiled: September 27, 2013Date of Patent: October 31, 2017Assignee: KENNAMETAL INCInventors: Armin Josef Zimmerman, Robert Meyer, Michael Schuffenhauer
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Publication number: 20170266734Abstract: A drilling tool with: a shaft; a seat at one end of the shaft; a drill bit, which is arranged on the seat; and a clamping section, which is provided on the shaft and can interact with the drill bit. Also provided is a tensioning screw, which is screwed into the shaft and comprises an expanding section as well as a contact section. The expanding section interacts with the clamping section, and the contact section interacts with the drill bit.Type: ApplicationFiled: March 16, 2017Publication date: September 21, 2017Inventor: Michael Schuffenhauer
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Publication number: 20150306676Abstract: 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: July 13, 2015Publication date: October 29, 2015Applicant: KENNAMETAL INC.Inventors: MICHAEL SCHUFFENHAUER, JOSEF HERUD