Patents by Inventor Dieter Kress

Dieter Kress 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).

  • Publication number: 20220193799
    Abstract: A milling head for a ball track milling cutter includes an imaginary center axis, a first, working-side end and a second, clamping-side end opposite the first end when viewed along the central axis, and comprising at least one geometrically defined cutting edge, extending along a cutting edge profile of the cutting edge from a first cutting edge end facing the first end of the milling head in the direction of the second end of the milling head up to a second cutting edge end facing the second end of the milling head, wherein at least one cutting edge is formed as an intersecting line between the rake face associated with at least one cutting edge and a first flank face associated with at least one cutting edge, wherein at least one cutting edge is assigned a negative rake angle, a first clearance angle and a wedge angle.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 23, 2022
    Applicant: Mapal Fabrik für Präzisionswerkzeuge Dr. Kress KG
    Inventor: Dieter KRESS
  • Patent number: 11351620
    Abstract: A milling head for a ball track milling cutter includes an imaginary center axis, a first, working-side end and a second, clamping-side end opposite the first end when viewed along the central axis, and comprising at least one geometrically defined cutting edge, extending along a cutting edge profile of the cutting edge from a first cutting edge end facing the first end of the milling head in the direction of the second end of the milling head up to a second cutting edge end facing the second end of the milling head, wherein at least one cutting edge is formed as an intersecting line between the rake face associated with at least one cutting edge and a first flank face associated with at least one cutting edge, wherein at least one cutting edge is assigned a negative rake angle, a first clearance angle and a wedge angle.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: June 7, 2022
    Assignee: Mapal Fabrik für Praäzisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Patent number: 11305360
    Abstract: A milling head for a ball track milling cutter includes an imaginary center axis, a first, working-side end and a second, clamping-side end opposite the first end when viewed along the central axis, and comprising at least one geometrically defined cutting edge, extending along a cutting edge profile of the cutting edge from a first cutting edge end facing the first end of the milling head in the direction of the second end of the milling head up to a second cutting edge end facing the second end of the milling head, wherein at least one cutting edge is formed as an intersecting line between the rake face associated with at least one cutting edge and a first flank face associated with at least one cutting edge, wherein at least one cutting edge is assigned a negative rake angle, a first clearance angle and a wedge angle.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: April 19, 2022
    Assignee: Mapal Fabrik für Praäzisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Publication number: 20200070258
    Abstract: A milling head for a ball track milling cutter includes an imaginary center axis, a first, working-side end and a second, clamping-side end opposite the first end when viewed along the central axis, and comprising at least one geometrically defined cutting edge, extending along a cutting edge profile of the cutting edge from a first cutting edge end facing the first end of the milling head in the direction of the second end of the milling head up to a second cutting edge end facing the second end of the milling head, wherein at least one cutting edge is formed as an intersecting line between the rake face associated with at least one cutting edge and a first flank face associated with at least one cutting edge, wherein at least one cutting edge is assigned a negative rake angle, a first clearance angle and a wedge angle.
    Type: Application
    Filed: March 15, 2018
    Publication date: March 5, 2020
    Applicant: MAPAL FABRIK FÜR PRÄZISIONSWERKZEUGE DR. KRESS KG
    Inventor: Dieter KRESS
  • Patent number: 10076793
    Abstract: A drilling tool for producing drill holes includes a tip and a shaft arranged opposite the tip in a direction of a longitudinal axis of the drilling tool. The drilling tool has at least one geometrically defined cutting edge in the tip area, and has an expanded diameter trailing the tip in a longitudinal direction from the tip. The drilling tool has a first area with a first diameter that precedes the expanded diameter, and a second area with a second diameter, larger than the first diameter, that trails the expanded diameter. The drilling tool is distinguished in that the expanded diameter and/or the second area is/are embodied such that chips are produced in the area of the expanded diameter and/or in the second area when a workpiece is machined, chips consistent with those produced when a workpiece is machined with a geometrically undefined cutting edge.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: September 18, 2018
    Assignee: MAPAL FABRIK FUR PRAZISIONSWERKZEUGE DR. KRESS KG
    Inventor: Dieter Kress
  • Patent number: 9815131
    Abstract: A reamer or similar tool comprising a cutting device having a cutting edge, a clamping device, whereby the cutting device can be clamped to the main body of the tool, an adjusting device that interacts with the cutting device, for adjusting the machining diameter of the tool, and a guiding device comprising an elongated guiding element, which interacts with an elongated guiding receptacle such that the cutting device can be guided in a sliding manner perpendicularly to the center axis during a displacement when the adjusting device is activated. The guiding element and the guiding receptacle extend perpendicularly to the center axis of the main body of the tool. The guiding device of the tool has a single guiding element and/or a single guiding receptacle, and the guiding element has an elongated elevation and the guiding receptacle has an elongated recess.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: November 14, 2017
    Assignee: MAPAL FABRIK FUR PRAZISIONWERKZEUGE DR. KRESS KG
    Inventor: Dieter Kress
  • Publication number: 20170113283
    Abstract: A drilling tool for producing drill holes includes a tip and a shaft arranged opposite the tip in a direction of a longitudinal axis of the drilling tool. The drilling tool has at least one geometrically defined cutting edge in the tip area, and has an expanded diameter trailing the tip in a longitudinal direction from the tip. The drilling tool has a first area with a first diameter that precedes the expanded diameter, and a second area with a second diameter, larger than the first diameter, that trails the expanded diameter. The drilling tool is distinguished in that the expanded diameter and/or the second area is/are embodied such that chips are produced in the area of the expanded diameter and/or in the second area when a workpiece is machined, chips consistent with those produced when a workpiece is machined with a geometrically undefined cutting edge.
    Type: Application
    Filed: January 3, 2017
    Publication date: April 27, 2017
    Inventor: Dieter KRESS
  • Publication number: 20150217387
    Abstract: A reamer or similar tool comprising a cutting device having a cutting edge, a clamping device, whereby the cutting device can be clamped to the main body of the tool, an adjusting device that interacts with the cutting device, for adjusting the machining diameter of the tool, and a guiding device comprising an elongated guiding element, which interacts with an elongated guiding receptacle such that the cutting device can be guided in a sliding manner perpendicularly to the center axis during a displacement when the adjusting device is activated. The guiding element and the guiding receptacle extend perpendicularly to the center axis of the main body of the tool. The guiding device of the tool has a single guiding element and/or a single guiding receptacle, and the guiding element has an elongated elevation and the guiding receptacle has an elongated recess.
    Type: Application
    Filed: September 13, 2013
    Publication date: August 6, 2015
    Applicant: Mapal Fabrik für Präzisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Patent number: 9073130
    Abstract: A drill for producing a drilled hole in work pieces has at least one main cutting edge on an end face. At least one secondary cutting edge is provided in the region of a circumferential surface of the drill. At least one circularly ground land circumferentially adjoins the at least one secondary cutting edge. The circularly ground lands extend over a first longitudinal section in the front area of the secondary cutting edge. In a following second longitudinal section, a secondary flank circumferentially adjoins the secondary cutting edge.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: July 7, 2015
    Assignee: Mapal Fabrik für Präzisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Patent number: 8967928
    Abstract: An interface element between a first tool element and a second tool element includes a projection on one of the first and second tool elements and a cavity that receives the projection on the other of the first and second tool element. The cavity includes inner contours which are designed to receive polygonal and/or stellate projections.
    Type: Grant
    Filed: August 19, 2006
    Date of Patent: March 3, 2015
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Patent number: 8790051
    Abstract: The present disclosure relates to an expandable reamer having a base body, a ring section, at least one cutting edge which is geometrically defined and provided on the outer surface of the ring section, an adjustment device which works on the ring section from the inside, has an adjustment screw, and serves to adjust the radial position of the at least one cutting edge, wherein the adjustment device is arranged in a cavity provided in the base body of the expandable reamer, and an adjustment body with a conical or round outer surface. The adjustment body can be displaced in the direction of the central axis of the expandable reamer and serves for the expansion of the ring section. The expandable reamer is characterized in that the adjustment body is designed as an adjustment sleeve which surrounds the adjustment screw and is mounted in a floating manner.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: July 29, 2014
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Publication number: 20130307178
    Abstract: A drilling tool for producing drill holes includes a tip and a shaft arranged opposite the tip in a direction of a longitudinal axis of the drilling tool. The drilling tool has at least one geometrically defined cutting edge in the tip area, and has an expanded diameter trailing the tip in a longitudinal direction from the tip. The drilling tool has a first area with a first diameter that precedes the expanded diameter, and a second area with a second diameter, larger than the first diameter, that trails the expanded diameter. The drilling tool is distinguished in that the expanded diameter and/or the second area is/are embodied such that chips are produced in the area of the expanded diameter and/or in the second area when a workpiece is machined, chips consistent with those produced when a workpiece is machined with a geometrically undefined cutting edge.
    Type: Application
    Filed: February 1, 2012
    Publication date: November 21, 2013
    Applicant: MAPAL FABRIK FUR PRAZISIONSWERKZEUGE DR. KRESS KG
    Inventor: Dieter Kress
  • Patent number: 8555757
    Abstract: A tool for the machining of workpiece surfaces includes at least one adjustable, geometrically defined cutting edge. The tool additionally includes an adjusting device for the adjusting of the distance of the cutting edge to the central axis of tool. The adjusting device has a drive shaft that acts on an adjusting slide via a gearbox, which determines the distance of cutting edge from the central axis of tool. The adjusting slide may be a round slide arranged eccentrically to the central axis of tool. The gearbox may have a high reduction and may directly act on the adjusting slide.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: October 15, 2013
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Patent number: 8393832
    Abstract: The invention relates to a tool (1) for machining workpieces, having a base body (3), at least one geometrically defined culling edge (15, 17) on which a face (21) abuts, a chip space (47, 53) associated with the cutting edge for receiving the chips removed by the cutting edge (15, 17), and a chip guide element (27, 29) associated with the cutting edge (15, 17). The tool is characterized in that the cutting edge (15, 17) together with the chip guide element (27, 29) forms a receiving gap (43, 45) which merges into the chip space (47, 53) and into which the chips removed by the cutting edge (15, 17) are introduced, and the chip guide element (27, 29) has a guide surface (39, 41) which, together with the face (21), forms a receiving channel (51) which abuts the receiving gap (43, 45).
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: March 12, 2013
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Patent number: 8353646
    Abstract: A tool for machining borehole surfaces, includes a base body, a cutting device having at least one cutting die with at least one geometrically defined tool edge, and at least one guide surface for guiding the tool (1) inside the machined borehole. The at least one cutting die being tangentially fastened to the end face of the tool, and preferably embedded therein, The at least one cutting die is provided with a rounded cut for producing a support surface adjacent to the tool edge is produced, the support surface being arched with a radius that is smaller than the radius of the borehole to be machined, and the region of the support surface directly adjoining the tool edge resting against the borehole wall to be machined, and the end region of the support surface, as viewed in the peripheral direction of the tool, which is situated at a distance from the tool edge being situated at a distance from the wall of the borehole.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: January 15, 2013
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventors: Dieter Kress, Friedrich Häberle
  • Patent number: 8257001
    Abstract: A tool system having at least two tool parts with opposed end contact surfaces which bear against one another in the region of an interface. The contact surfaces have a tooth system thereon including intermeshing teeth and recesses. The tooth system is shaped and positioned such that the contact surfaces can be fitted together only in at least one defined rotary angle position with respect to the center axis of the tool parts.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: September 4, 2012
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventors: Dieter Kress, Friedrich Häberle
  • Publication number: 20120219369
    Abstract: A reamer includes a base body having at least one insert seat countersunk therein and having at least first and second lateral surfaces. A cutting insert has at least one minor cutting edge inserted in this seat. In addition, a clamping device includes a clamping jaw and an adjustment device for the cutting insert. A first lateral surface is inclined relative to an imaginary vertical line such that the cutting insert is alignable by contacting the lateral surface such that the insert's minor cutting edge has a defined taper, that an opening is provided at the base of the insert seat, through which opening the adjustment part protrudes into the insert seat, and that the cutting insert on its side facing the adjustment part adjoins this part.
    Type: Application
    Filed: December 15, 2009
    Publication date: August 30, 2012
    Applicant: MAPAL FABRIK FÜR PRÄZISIONS-WERKZEUGE DR. KRESS KG
    Inventor: Dieter Kress
  • Publication number: 20120183367
    Abstract: A drill for producing a drilled hole in work pieces has at least one main cutting edge on an end face. At least one secondary cutting edge is provided in the region of a circumferential surface of the drill. At least one circularly ground land circumferentially adjoins the at least one secondary cutting edge. The circularly ground lands extend over a first longitudinal section in the front area of the secondary cutting edge. In a following second longitudinal section, a secondary flank circumferentially adjoins the secondary cutting edge.
    Type: Application
    Filed: September 29, 2010
    Publication date: July 19, 2012
    Applicant: Mapal Fabrik Fur Prazisionswerkzeuge Dr. KRESS KG
    Inventor: Dieter Kress
  • Publication number: 20120114440
    Abstract: A drill (1) for producing a drilled hole in workpieces comprising fibre-reinforced plastic is proposed, with at least one main cutting edge (3) on the end face, with at least one secondary cutting edge (11), provided in the region of a circumferential surface (9) of the drill (1), and with circularly ground lands (21), circumferentially adjoining the at least one secondary cutting edge (11, 11?). The drill is distinguished by the fact that the preferably continuous circularly ground lands (21) have, starting from a front region of the drill (1), a first longitudinal portion (22) with a first width (B1) and, adjoining thereto, a second longitudinal portion (24) with a second width (B2), wherein the width (B1) of the first longitudinal portion (22) is less, preferably less by a multiple, than the width (B2) of the second longitudinal portion (24).
    Type: Application
    Filed: July 2, 2010
    Publication date: May 10, 2012
    Inventor: Dieter Kress
  • Publication number: 20110052336
    Abstract: An interface element between a first tool element and a second tool element includes a projection on one of the first and second tool elements and a cavity that receives the projection on the other of the first and second tool element. The cavity comprises inner contours which are designed to receive polygonal and/or stellate projections.
    Type: Application
    Filed: August 19, 2006
    Publication date: March 3, 2011
    Inventor: Dieter Kress