Patents by Inventor Herbert Rudolf KAUPER
Herbert Rudolf KAUPER 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: 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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Publication number: 20190047060Abstract: The invention relates to a rotary tool as well as to a carrier and a cutting insert of such a rotary tool. The carrier comprises a seat, which comprises several lateral surfaces, between which the cutting insert can be inserted. The cutting insert comprises, for each of the lateral surfaces, a contact surface which abuts against the respective lateral surface in an inserted state. At least one coolant channel is formed, which comprises a first partial channel and a second partial channel, which adjoins the first partial channel, wherein the first partial channel proceeds within the carrier up to an outlet opening, wherein the second partial channel proceeds within the cutting insert from an inlet opening up to a coolant outlet, wherein the outlet opening and the inlet opening form an interface for transferring coolant from the carrier to the cutting insert. The outlet opening is arranged in one of the lateral surfaces and the inlet opening is arranged in one of the contact surfaces.Type: ApplicationFiled: August 13, 2018Publication date: February 14, 2019Inventor: Herbert Rudolf KAUPER
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Patent number: 10086444Abstract: The invention relates to a drill tip (2) comprising a base body (6) having chip flutes (22A,B) and extending in the axial direction along an axis of rotation (8) and having at least two main cutting edges (14A,B) on the front face thereof extending outward in the radial direction to a cutting corner (16A,B). Seen in cross section, the base body is asymmetric relative to rotation about the axis of rotation (8) at the height of the cutting corner (16A,B). The cross section of the base body is simultaneously designed having symmetrical spacing from the main cutting edges (14A,B). The drill tip (2) is in particular designed as an interchangeable modular part of a modularly designed drill tip (5). A drill base body (4) in which the drill tip (2) can be inserted can therefore in turn be designed symmetrically.Type: GrantFiled: February 12, 2010Date of Patent: October 2, 2018Assignee: KENNAMETAL INC.Inventors: Jürgen Schwägerl, Herbert Rudolf Kauper
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Publication number: 20180093330Abstract: A cutting tool (2)—in particular a rotary tool—is described, having a cutting edge (4) from which a rake face (6) and a clearance face (8) extend, characterized in that a groove (12) is introduced into the clearance face (8) in a region along the cutting edge (4) so that a part of the clearance face (8) is formed as a wear face (14) that extends between the groove (12) and the cutting edge (4) and is bounded by the groove (12) and the cutting edge (4). The groove (12) advantageously limits the wear of the cutting tool (2) in the region of the cutting edge (4) on the wear surface (14), so that overall the frictional forces that occur are kept small and the service life of the cutting tool (2) is extended. Furthermore, a cutting element for a cutting tool (2) as well as a method for manufacturing the cutting tool (2) are described.Type: ApplicationFiled: November 28, 2016Publication date: April 5, 2018Applicant: Kennametal Inc.Inventors: Tim Guter, Herbert Rudolf Kauper
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Patent number: 9802258Abstract: The drill head (2) extends along a rotational axis (24) in the axial direction (22) and has a central area (6) on the front with first main cutting edges (26), an intermediate area (8) connecting thereto, and an outer area (10) in turn connecting thereto with second main cutting edges (30). The intermediate area (8) in this case expands in the axial direction (22) toward the outer area (10) and in particular forms an expanding conical shell. A centering effect is hereby achieved via the intermediate area (8).Type: GrantFiled: June 30, 2015Date of Patent: October 31, 2017Assignee: KENNAMETAL INC.Inventor: Herbert Rudolf Kauper
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Patent number: 9662719Abstract: In order to ensure good guidance of a drilling tool at the start of a drilling operation and at the same time ensure a reliable evacuation of a center chip, in the drill bit, in a tool flank adjoining a respective main cutting edge, an additional point thinning is recessed in the region of a transverse cutting edge, which additional point thinning, extending in a principal direction from the tool flank, merges, with a convex course, into a chip flute. As a result of the convex design, an as far as possible homogeneous, edge-free transition into the chip flute is obtained. Since the point thinning is additionally made, the tool flank, even in the rear end facing away from the cutting edge, remains at a front axial position, so that a second land is effective for a reliable guidance of the bore already at an axially front position.Type: GrantFiled: January 21, 2014Date of Patent: May 30, 2017Assignee: KENNAMETAL, INC.Inventors: Herbert Rudolf Kauper, Juergen Schwaegerl
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Patent number: 9604285Abstract: A rotary tool, in particular drilling tool, extends along a longitudinal axis and has an end surface; a brad point; and at least one major cutting edge extending outward up to an edge corner. A first free surface segment adjoins the major cutting edge, and a second free surface segment in turn adjoins said first free surface segment. To keep the stress, in particular the wear, low in the region of the end surface, the first free surface segment has a lower average abrasiveness than the second free surface segment.Type: GrantFiled: March 11, 2015Date of Patent: March 28, 2017Assignee: KENNAMETAL, INC.Inventors: Juergen Schwaegerl, Herbert Rudolf Kauper
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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: 20170021434Abstract: In order to achieve a long service life for a machining tool, in particular for a solid carbide drill, it is provided with a special wear protection coating. In a first method step, in order to form this coating, a first layer made of a first material is applied in the region of a cutting edge and in the adjoining surface regions, and specifically, a flank face and a rake face. In a second step, the applied first material of the first layer is selectively removed at least partially, and preferably completely, only in the region of the cutting edge. Finally, in a third method step, a second layer made of a second wear-resistant material is applied both to the cutting edge and to the face regions. In this way, a coating having a high overall thickness in the face regions is made possible, without the risk of cracking.Type: ApplicationFiled: July 20, 2016Publication date: January 26, 2017Inventor: HERBERT RUDOLF KAUPER
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Publication number: 20160279747Abstract: A process for producing a tool having a main body which extends in a longitudinal direction and at least one blade for machining a workpiece includes providing a base coating on the tool; grinding the at least one blade in a manner that removes the base coating in the region of the at least one blade; and providing a second, fine coating, to the at least one ground blade.Type: ApplicationFiled: May 6, 2016Publication date: September 29, 2016Inventor: Herbert Rudolf KAUPER
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Publication number: 20160263663Abstract: A rotary tool, in particular drilling tool, extends along a longitudinal axis and has an end surface; a brad point; and at least one major cutting edge extending outward up to an edge corner. A first free surface segment adjoins the major cutting edge, and a second free surface segment in turn adjoins said first free surface segment. To keep the stress, in particular the wear, low in the region of the end surface, the first free surface segment has a lower average abrasiveness than the second free surface segment.Type: ApplicationFiled: March 11, 2015Publication date: September 15, 2016Applicant: KENNAMETAL, INC.Inventors: JUERGEN SCHWAEGERL, HERBERT RUDOLF KAUPER
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Publication number: 20160236307Abstract: In one aspect, blanks for rotary tooling applications are described herein. Such blanks can employ architectures realizing material efficiencies and temporal efficiencies when processed into rotary cutting tools. For example, a rotary cutting tool blank described herein comprises a plurality of interior channels extending along a longitudinal axis of the blank, the interior channels having radial positioning for external exposure along an axial length of cut of the rotary cutting tool upon introduction flutes to the blank.Type: ApplicationFiled: February 16, 2015Publication date: August 18, 2016Inventors: Herbert Rudolf KAUPER, Julia Tempelmeier, Stephen Michael George
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Patent number: 9358626Abstract: A process for producing a tool having a main body which extends in a longitudinal direction and at least one blade for machining a workpiece includes providing a base coating on the tool; grinding the at least one blade in a manner that removes the base coating in the region of the at least one blade; and providing a second, fine coating, to the at least one ground blade.Type: GrantFiled: November 14, 2012Date of Patent: June 7, 2016Assignee: KENNAMETAL INC.Inventor: Herbert Rudolf Kauper
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Patent number: 9296049Abstract: A coupling point for a modular rotary which extends in an axial direction. The coupling point includes a first coupling part disposed on a tool head and a second coupling part disposed on a carrier. The coupling parts can be coupled to one another by bidirectional rotation with the formation of an interference fit which acts in the radial direction. Each coupling part includes two coupling faces which lie opposite one another and have contact regions in which the interference fit is formed. In the first coupling part, at least one of the coupling faces has at least two contact regions which are spaced apart from one another in the circumferential direction, and, to this end, at least one first clearance portion is formed between the contact regions, in which clearance portion the two coupling parts do not bear against one another in the coupled state.Type: GrantFiled: July 11, 2013Date of Patent: March 29, 2016Assignee: KENNAMETAL INC.Inventors: Juergen Schwaegerl, Herbert Rudolf Kauper
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Publication number: 20160075001Abstract: The mounting wrench (2) is used to engage or disengage a tool head (24) of a modular tool. The mounting wrench (2) incorporates a base body (4), which extends from an upper surface (20) along a centered longitudinal axis (18) to an underside (22). In addition, it has a slotted part (6), extending in the direction of the centered longitudinal axis (18), with a slot (10), into which the tool head (24) can be inserted. The slotted part (6) has two opposing keys (14), extending radially inward, which are each designed to mesh into a keyway (30) of the tool head (24). The keys (14) have a rounded end face (32), oriented radially inward, and are sloped relative to the centered longitudinal axis (18) so that the distance (a) between the keys (14) increases in the direction of the centered longitudinal axis (18).Type: ApplicationFiled: September 11, 2015Publication date: March 17, 2016Inventors: Julia TEMPELMEIER, Jürgen Schwagerl, Herbert Rudolf Kauper, Tim Guter, Berthold Heinrich Zeug, Rainer Büttner, Peter Sollfrank, Gunnar Schmitt
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Publication number: 20160052069Abstract: A twist drill includes a shank; a body adjacent the shank extending along a rotational, longitudinal axis of the twist drill, the body made of a carbide material; a plurality of helically extending chip flutes formed into the body with a web formed between the chip flutes, the chip flutes oriented at a helix angle relative to the longitudinal axis, each chip flute flanked by a major cutting edge with a corresponding flank or land and a minor cutting edge with a corresponding flank or land; and a ceramic insert attached to a notch formed in the body of the drill, wherein the ceramic insert forms only a portion of each of the major and minor cutting edges of the twist drill.Type: ApplicationFiled: July 13, 2015Publication date: February 25, 2016Inventor: Herbert Rudolf Kauper
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Publication number: 20160001379Abstract: The drill head (2) extends along a rotational axis (24) in the axial direction (22) and has a central area (6) on the front with first main cutting edges (26), an intermediate area (8) connecting thereto, and an outer area (10) in turn connecting thereto with second main cutting edges (30). The intermediate area (8) in this case expands in the axial direction (22) toward the outer area (10) and in particular forms an expanding conical shell. A centering effect is hereby achieved via the intermediate area (8).Type: ApplicationFiled: June 30, 2015Publication date: January 7, 2016Inventor: Herbert Rudolf KAUPER
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Publication number: 20150360301Abstract: In order to ensure good guidance of a drilling tool at the start of a drilling operation and at the same time ensure a reliable evacuation of a center chip, in the drill bit, in a tool flank adjoining a respective main cutting edge, an additional point thinning is recessed in the region of a transverse cutting edge, which additional point thinning, extending in a principal direction from the tool flank, merges, with a convex course, into a chip flute. As a result of the convex design, an as far as possible homogeneous, edge-free transition into the chip flute is obtained. Since the point thinning is additionally made, the tool flank, even in the rear end facing away from the cutting edge, remains at a front axial position, so that a second land is effective for a reliable guidance of the bore already at an axially front position.Type: ApplicationFiled: January 21, 2014Publication date: December 17, 2015Applicant: KENNAMETAL, INC.Inventors: HERBERT RUDOLF KAUPER, JUERGEN SCHWAEGERL
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Publication number: 20150071718Abstract: The radial run-out tool (2), particularly a drill or a cutter, has a basic body (12) extending in an axial direction (4) and comprises at least two chip grooves (14), to which a guide chamfer (22) is connected in the rotational direction (24), with a ridge (15) being formed between them. A radial clearance is connected to the guide chamfer (22). In order to enable simple and economical production of such type of radial run-out tool (2), an unprocessed rod (30) is ground non-concentrically, in a first process step, such that a radius (R) of the unprocessed rod (30) varies, depending on the angle, between a maximum radius (R2) and a minimum radius (R1). In a second process step, the chip grooves (14) are grounded down such that the guide chamfers (22) are formed at the positions with the maximum radius (R2) and the radius (R) is subsequently reduced downstream of the respective guide chamfer (22) in order to form the radial clearance (28).Type: ApplicationFiled: September 8, 2014Publication date: March 12, 2015Inventor: Herbert Rudolf KAUPER
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Patent number: D760565Type: GrantFiled: April 29, 2015Date of Patent: July 5, 2016Assignee: KENNAMETAL INC.Inventors: Julia Tempelmeier, Juergen Schwaegerl, Tim Guter, Herbert Rudolf Kauper, Rainer Buettner, Berthold Heinrich Zeug, Alexander Schmitt, Peter Sollfrank