Patents by Inventor Horst Manfred Jager
Horst Manfred Jager 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: 20240139828Abstract: The invention relates to a drill head comprising at least one surface, with a number of structural elements, wherein the structural elements are manufactured by an additive or primary forming manufacturing method. The invention further relates to a method for manufacturing such a drill head.Type: ApplicationFiled: October 19, 2023Publication date: May 2, 2024Inventors: Kay Ulbig, Juergen Schwaegerl, Matthias Zitzmann, Sebastian Kunschir, Patrick Kuhlemann, Horst Manfred Jäger, Georg Roth
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Patent number: 11623287Abstract: A rotary cutting tool, in particular a drill, is described, which comprises a shank and an exchangeable cutting tip (14). For this purpose, a locking geometry having an undercut of a first type and a torque transmission geometry is provided on the shank. A locking projection having a torque transmission counter-geometry is provided on the cutting tip, wherein, in a mounted state, the locking projection engages in the undercut of the first type and the torque transmission counter-geometry abuts the torque transmission geometry. The rotary cutting tool further comprises a securing unit, which holds the cutting tip on the shank.Type: GrantFiled: December 4, 2020Date of Patent: April 11, 2023Assignee: Kennametal Inc.Inventors: Horst Manfred Jäger, Berthold Heinrich Zeug
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Patent number: 11090736Abstract: A cutting insert includes a head portion having a number of cutting edges and a centering pin which is disposed about a central longitudinal axis and which is coupled to, and extends axially away from, the main head portion. The centering pin includes a recess structured to accommodate a portion of a setscrew. The recess includes: a first angled surface disposed generally facing away from a leading end of the centering pin at an acute first angle with respect to the longitudinal axis of the centering pin; and a second angled surface which is positioned opposing the first angled surface at an acute second angle with respect to the longitudinal axis of the centering pin.Type: GrantFiled: December 10, 2018Date of Patent: August 17, 2021Assignee: KENNAMETAL INC.Inventors: Horst Manfred Jager, Ruy Frota De Souza Filho
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Publication number: 20210170505Abstract: A rotary cutting tool, in particular a drill, is described, which comprises a shank and an exchangeable cutting tip (14). For this purpose, a locking geometry having an undercut of a first type and a torque transmission geometry is provided on the shank. A locking projection having a torque transmission counter-geometry is provided on the cutting tip, wherein, in a mounted state, the locking projection engages in the undercut of the first type and the torque transmission counter-geometry abuts the torque transmission geometry. The rotary cutting tool further comprises a securing unit, which holds the cutting tip on the shank.Type: ApplicationFiled: December 4, 2020Publication date: June 10, 2021Inventors: Horst Manfred Jäger, Berthold Heinrich Zeug
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Publication number: 20200180047Abstract: A cutting insert includes a head portion having a number of cutting edges and a centering pin which is disposed about a central longitudinal axis and which is coupled to, and extends axially away from, the main head portion. The centering pin includes a recess structured to accommodate a portion of a setscrew. The recess includes: a first angled surface disposed generally facing away from a leading end of the centering pin at an acute first angle with respect to the longitudinal axis of the centering pin; and a second angled surface which is positioned opposing the first angled surface at an acute second angle with respect to the longitudinal axis of the centering pin.Type: ApplicationFiled: December 10, 2018Publication date: June 11, 2020Applicant: KENNAMETAL, INC.Inventors: HORST MANFRED JAGER, RUY FROTA DE SOUZA FILHO
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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: 10537943Abstract: The invention relates to a modular rotary tool, which extends along an axis of rotation (6) in the longitudinal direction and which has a carrier provided with flutes as well as a cutting head exchangeably secured on said carrier, wherein the carrier has on the end surface a coupling receiving means for receiving a coupling pin of the cutting head, wherein in the carrier, a coolant channel is formed, which terminates at a first outlet opening in the coupling receiving means, and wherein a branch channel is provided, which is spaced apart from the coupling receiving means and which opens into the coolant channel at one end and terminates at a second outlet opening in the flute at the other end.Type: GrantFiled: March 27, 2018Date of Patent: January 21, 2020Assignee: KENNAMETAL INCInventor: Horst Manfred Jäger
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Patent number: 10434582Abstract: A tool coupling used for a clamping connection between two coupling parts, in particular between a cutting head and a carrier of a rotary tool, in particular of a drill. The coupling parts comprise clamping sections, which respectively correspond to one another and which can be clamped against each other by turning counter to a predefined direction of rotation about an axis of rotation so that a press fit is produced. In order to produce a high clamping force and at the same time allow for a simple installation via screwing in, each clamping section comprises several successive clamping surfaces which—with respect to a cross section viewed orthogonally to the axial direction—respectively travel along a circular arc, wherein the diameter increases for clamping surfaces succeeding one another in the direction of rotation.Type: GrantFiled: October 21, 2016Date of Patent: October 8, 2019Assignee: KENNAMETAL INC.Inventors: Berthold Heinrich Zeug, Jürgen Schwägerl, Horst Manfred Jäger
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Patent number: 10213845Abstract: A rotary tool designed as a modular drill, extending in an axial direction along an axis of rotation. It comprises two coupling parts: a carrier; and a cutting head that is attached to the carrier so as to be exchangeable. The carrier includes pin receiving means, into which a coupling pin of the cutting head is introduced in a clamping manner and so as to be reversibly exchangeable. The pin receiving means and the coupling pin have torque sections and clamping sections that correspond to one another and are oriented parallel to the axis of rotation. In addition, to prevent axial pull-out, stop surfaces are provided on the pin receiving means and on the coupling pin, the stop surfaces being effective in an axial direction and corresponding to one another. These stop surfaces preferably extend horizontally and therefore perpendicular to the axis of rotation.Type: GrantFiled: March 24, 2015Date of Patent: February 26, 2019Assignee: KENNAMETAL INC.Inventors: Jürgen Schwägerl, Berthold Heinrich Zeug, Horst Manfred Jäger, Herbert Rudolf Kauper, Julia Tempelmeier, Tim Guter
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Patent number: 10207336Abstract: A rotary tool comprising two coupling parts, namely a carrier and a cutting head in a front end surface. The carrier comprises a pin receptacle into which a coupling pin of the cutting head is inserted. In order to prevent pulling-out in an axial direction, stop surfaces are provided on the pin receptacle and on the coupling pin, said stop surfaces being effective in an axial direction. For a design that is as simple as possible, in particular with regard to grinding, each stop surface of the coupling pin is adjoined by a lateral surface which freely tapers off in the direction toward the end surface as viewed in the axial direction. In particular, the lateral surface constitutes a torque surface.Type: GrantFiled: October 21, 2016Date of Patent: February 19, 2019Assignee: KENNAMETAL INC.Inventors: Jürgen Schwägerl, Berthold Heinrich Zeug, Horst Manfred Jäger
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Publication number: 20180272442Abstract: The invention relates to a modular rotary tool, which extends along an axis of rotation (6) in the longitudinal direction and which has a carrier provided with flutes as well as a cutting head exchangeably secured on said carrier, wherein the carrier has on the end surface a coupling receiving means for receiving a coupling pin of the cutting head, wherein in the carrier, a coolant channel is formed, which terminates at a first outlet opening in the coupling receiving means, and wherein a branch channel is provided, which is spaced apart from the coupling receiving means and which opens into the coolant channel at one end and terminates at a second outlet opening in the flute at the other end.Type: ApplicationFiled: March 27, 2018Publication date: September 27, 2018Inventor: Horst Manfred Jäger
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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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Patent number: 9724765Abstract: The rotating tool, in particular a drill, includes a fluted cutting shank made of a resistant material, in particular carbide, extending in an axial direction along a rotational axis. Connecting to the cutting shank in the axial direction is an intermediate shank made of a material of greater elasticity in comparison the resistant material, in particular of tool steel. The intermediate shank includes an insertable cutting insert that may be exchanged. The cutting shank is preferably a cutting shank recycled from a used solid carbide drill.Type: GrantFiled: April 15, 2015Date of Patent: August 8, 2017Assignee: KENNAMETAL INC.Inventors: Eduard Ach, Horst Manfred Jäger, Fabian Rosenberger
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Publication number: 20170113281Abstract: A rotary tool comprising two coupling parts, namely a carrier and a cutting head in a front end surface. The carrier comprises a pin receptacle into which a coupling pin of the cutting head is inserted. In order to prevent pulling-out in an axial direction, stop surfaces are provided on the pin receptacle and on the coupling pin, said stop surfaces being effective in an axial direction. For a design that is as simple as possible, in particular with regard to grinding, each stop surface of the coupling pin is adjoined by a lateral surface which freely tapers off in the direction toward the end surface as viewed in the axial direction. In particular, the lateral surface constitutes a torque surface.Type: ApplicationFiled: October 21, 2016Publication date: April 27, 2017Inventors: Jürgen Schwägerl, Berthold Heinrich Zeug, Horst Manfred Jäger
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Publication number: 20170113282Abstract: A tool coupling used for a clamping connection between two coupling parts, in particular between a cutting head and a carrier of a rotary tool, in particular of a drill. The coupling parts comprise clamping sections, which respectively correspond to one another and which can be clamped against each other by turning counter to a predefined direction of rotation about an axis of rotation so that a press fit is produced. In order to produce a high clamping force and at the same time allow for a simple installation via screwing in, each clamping section comprises several successive clamping surfaces which—with respect to a cross section viewed orthogonally to the axial direction—respectively travel along a circular arc, wherein the diameter increases for clamping surfaces succeeding one another in the direction of rotation.Type: ApplicationFiled: October 21, 2016Publication date: April 27, 2017Inventors: Berthold Heinrich Zeug, Jürgen Schwägerl, Horst Manfred Jäger
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Publication number: 20170028480Abstract: The rotary tool (2) is in particular designed as a modular drill and extends in an axial direction (4) along an axis of rotation (6). It comprises two coupling parts, namely a carrier (10) and a cutting head (12) that is attached to the carrier (10) so as to be exchangeable. A pin receiving means (20) is provided on the carrier (10), into which pin receiving means a coupling pin (40) of the cutting head (12) is introduced in a clamping manner and so as to be reversibly exchangeable. The pin receiving means (20) and the coupling pin (40) have torque sections (30a,b) and clamping sections (32a,b) that correspond to one another. In order to permit simple production, these clamping and torque sections are oriented parallel to the axis of rotation (6). In addition, in order to prevent pulling-out in an axial direction, stop surfaces (38a,b) are provided on the pin receiving means (20) and on the coupling pin (40), said stop surfaces being effective in an axial direction (4) and corresponding to one another.Type: ApplicationFiled: March 24, 2015Publication date: February 2, 2017Inventors: Jürgen Schwägerl, Berthold Heinrich Zeug, Horst Manfred Jäger, Herbert Rudolf Kauper, Julia Tempelmeier, Tim Guter
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Publication number: 20150298220Abstract: The rotating tool, in particular a drill, includes a fluted cutting shank made of a resistant material, in particular carbide, extending in an axial direction along a rotational axis. Connecting to the cutting shank in the axial direction is an intermediate shank made of a material of greater elasticity in comparison the resistant material, in particular of tool steel. The intermediate shank includes an insertable cutting insert that may be exchanged. The cutting shank is preferably a cutting shank recycled from a used solid carbide drill.Type: ApplicationFiled: April 15, 2015Publication date: October 22, 2015Inventors: Eduard Ach, Horst Manfred Jäger, Fabian Rosenberger
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Patent number: 9108249Abstract: A cutting insert for use in a drilling tool includes two end faces disposed perpendicular to an insert axis and a plurality of side walls connecting the end faces. Supporting surfaces for bearing against corresponding mating supporting surfaces of a cutting insert receptacle of the drilling tool are formed on at least two of the side walls arranged in a rear region of the cutting insert. A main lip for machining a workpiece to be drilled is formed on at least one side wall arranged in a front region of the cutting insert. The side walls having the supporting surfaces are arranged in such a way that the cutting insert can be inserted into a trigon cutting insert receptacle in an accurately fitting manner.Type: GrantFiled: February 8, 2012Date of Patent: August 18, 2015Assignee: KENNAMETAL INC.Inventor: Horst Manfred Jäger
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Patent number: 9079255Abstract: A boring tool has a receiving part implemented as a borer body and a front part implemented as a borer head, which extend along a central axis and can be removably fastened to one another via driver connection. The driver connection has at least two coupling pairs which are separate from one another and are disposed eccentrically relative to the central axis. Each coupling pair is formed by interlocking coupling elements, namely a receiving pocket and a driver pin. The coupling elements have an asymmetrical cross-sectional area and widen with increasing distance to the central axis. Through this design, a reliable transmission of high torques is achieved with lower strains of the borer body in the area of the driver connection. Simultaneously, an automatic centering of the two tool parts to one another is performed.Type: GrantFiled: April 2, 2009Date of Patent: July 14, 2015Assignee: KENNAMETAL INC.Inventors: Horst Manfred Jager, Berthold Heinrich Zeug
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Patent number: 9073159Abstract: A tool adapter includes a holder structured to be attached to a machine tool and a tool receiver structured to receive a portion of a rotary cutting tool therein. The tool receiver being mounted in the holder so as to be rotatable to a limited extent. The tool receiver being mounted in the holder so as to be elastically resilient in the axial direction.Type: GrantFiled: May 24, 2012Date of Patent: July 7, 2015Assignee: KENNAMETAL INC.Inventors: Horst Manfred Jäger, Krishna Pappu