Patents by Inventor Bruno Teusch

Bruno Teusch 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).

  • Patent number: 11865628
    Abstract: A roughening tool for roughening the cylindrical surface of a bore in a particular metallic workpiece, e.g. the piston running surface of a cylinder bore or cylinder liner in an internal combustion engine, by generating a defined microstructure of a plurality of circumferentially spaced apart circumferential microgrooves. The roughening tool has a tool main body which can be driven in rotation about an axis of rotation and a multiplicity of circumferentially cutting cutting tools arranged at a defined axial distance from one another on the tool main body. According to the invention, the cutting tools are each formed from a disc milling cutter and each disc milling cutter has at least one cutting element with a multiplicity of cutting teeth arranged at an axial distance from one another. In addition, a method for roughening a cylindrical surface.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: January 9, 2024
    Assignee: Guehring KG
    Inventor: Bruno Teusch
  • Patent number: 11786978
    Abstract: The invention relates to a hydraulic expanding chuck for gripping a tool, for example a drill or a milling tool, comprising: a clamping part having an expansion sleeve having a central receiving opening for receiving and clamping the tool; and a connection part, in particular having a HSK connection. According to the invention, the expansion sleeve has at least two pressure chambers, which are designed to run around the central receiving opening, which are arranged at an axial distance relative to one another, and which can bulge when the tool received in the central receiving opening is subjected to fluid pressure. The at least two pressure chambers are connected to one another by a fluid channel.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: October 17, 2023
    Assignee: Guehring KG
    Inventors: Bruno Teusch, Klaus Matheis
  • Patent number: 11491558
    Abstract: The invention relates to a method for producing a roughing tool (1), particularly a circular milling tool, comprising the following steps: fitting a lateral surface of a tool base body (10) that can be rotatably driven about an axis of rotation (2) with a number of cutting element blanks (20?) that are staggered in the axial and/or peripheral direction, such that a free edge of each cutting element blank (20?) protrudes out of the lateral surface in the mounted state; inserting a microtoothing comprising a plurality of axially spaced cutting teeth (21) into the respective free edges of the cutting element blanks (20?) by a material removal method, preferably by thermal machining, particularly preferably by eroding, in the premounted state on the tool base body (10). The invention further relates to a roughing tool produced by means of such a method.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: November 8, 2022
    Assignee: Guehring KG
    Inventor: Bruno Teusch
  • Publication number: 20210245274
    Abstract: A circular milling tool for producing a microgroove structure in a cylindrical surface of a bore, the microgroove structure having a groove profile defined by plural microgrooves axially spaced apart and peripherally extend in a circular manner, comprising: a tool base body drivable around an axis of rotation, which carries a circumferential cutter set with first and second circumferential cutters, which are arranged in a row in the circumferential direction, the first circumferential cutter and second circumferential cutter each have a cutting profile that differs from the groove profile of the microgroove structure to be produced, and the circumferentially projected cutting profiles of the circumferential cutters of the circumferential cutter set overlap each other in an axial direction to an extent that they jointly image the defined groove profile of the microgroove structure to be generated. Also, a method for producing a microgroove structure in a bore.
    Type: Application
    Filed: February 22, 2021
    Publication date: August 12, 2021
    Applicant: Guehring KG
    Inventor: Bruno TEUSCH
  • Publication number: 20200282477
    Abstract: The invention relates to a method for producing a roughing tool (1), particularly a circular milling tool, comprising the following steps: fitting a lateral surface of a tool base body (10) that can be rotatably driven about an axis of rotation (2) with a number of cutting element blanks (20?) that are staggered in the axial and/or peripheral direction, such that a free edge of each cutting element blank (20?) protrudes out of the lateral surface in the mounted state; inserting a microtoothing comprising a plurality of axially spaced cutting teeth (21) into the respective free edges of the cutting element blanks (20?) by a material removal method, preferably by thermal machining, particularly preferably by eroding, in the premounted state on the tool base body (10). The invention further relates to a roughing tool produced by means of such a method.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 10, 2020
    Applicant: GUEHRING KG
    Inventor: Bruno TEUSCH
  • Publication number: 20190210119
    Abstract: A roughening tool for roughening the cylindrical surface of a bore in a particular metallic workpiece, e.g. the piston running surface of a cylinder bore or cylinder liner in an internal combustion engine, by generating a defined microstructure of a plurality of circumferentially spaced apart circumferential microgrooves. The roughening tool has a tool main body which can be driven in rotation about an axis of rotation and a multiplicity of circumferentially cutting cutting tools arranged at a defined axial distance from one another on the tool main body. According to the invention, the cutting tools are each formed from a disc milling cutter and each disc milling cutter has at least one cutting element with a multiplicity of cutting teeth arranged at an axial distance from one another. In addition, a method for roughening a cylindrical surface.
    Type: Application
    Filed: February 27, 2019
    Publication date: July 11, 2019
    Applicant: GUEHRING KG
    Inventor: Bruno Teusch
  • Publication number: 20190001420
    Abstract: The invention relates to a hydraulic expanding chuck for gripping a tool, for example a drill or a milling tool, comprising: a clamping part having an expansion sleeve having a central receiving opening for receiving and clamping the tool; and a connection part, in particular having a HSK connection. According to the invention, the expansion sleeve has at least two pressure chambers, which are designed to run around the central receiving opening, which are arranged at an axial distance relative to one another, and which can bulge when the tool received in the central receiving opening is subjected to fluid pressure. The at least two pressure chambers are connected to one another by a fluid channel.
    Type: Application
    Filed: June 1, 2018
    Publication date: January 3, 2019
    Applicant: GUEHRING KG
    Inventors: Bruno TEUSCH, Klaus MATHEIS
  • Patent number: 9649696
    Abstract: The invention relates to tool mount with a base body and a receptacle that is joined with the base body for torque transmission and anchored in the base body in an axially movable manner with a spring preload. The base body exhibits a shank section with a recess that is open on the machine tool side, and a bushing section that axially lengthens the shank section, with a guide borehole that is open on the tool side and separated from the recess of the shank section by a radial dividing wall. The receptacle exhibits a guide section that is guided in the guide borehole of the bushing section in an axially movable manner. The receptacle is anchored by means of an anchor that passes through an axial opening in the radial dividing wall and can be actuated for setting the spring preload via the recess of the base body.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: May 16, 2017
    Assignee: Guehring OHG
    Inventor: Bruno Teusch
  • Patent number: 9566650
    Abstract: The invention relates to a hydraulic expansion chuck (1) with a hydraulic expansion mechanism (23) that is integrated into a chuck body (10, 20) and exhibits an expansion bushing (23a) with a continuous cylindrical interior wall, and to a reducing bushing (24) arranged in the expansion bushing (23a) for accommodating a shank tool (W), in particular a tap drill. According to the invention, the outer circumference of the reducing bushing (24) is positively connected with the chuck body (10, 20) in a torque-proof manner, and its inner circumference is designed to be positively connected with the shank tool (W) in a torque-proof manner.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: February 14, 2017
    Assignee: Guehring OHG
    Inventors: Bruno Teusch, Hakki Aygün
  • Publication number: 20150115549
    Abstract: A modular tool retainer, comprising a main body extending along an axis of rotation and which is functionally divided into a shaft section for coupling to a machine tool spindle and a clamping section having a central accommodating bore for accommodating and clamping a cutting tool, which has a cutting head and at least one cutting edge, which is arranged concentrically to the main body and detachably fastened to the main body, and which is arranged at a predetermined axial and/or radial and/or angular position relative to the at least one cutting edge. The cutting head has a sleeve section, which extends the tool retainer and has a central accommodating bore arranged concentric to the central passage bore of the clamping section for accommodating and radially supporting a tool shaft part of the cutting tool protruding from the central accommodating bore of the clamping section.
    Type: Application
    Filed: November 4, 2014
    Publication date: April 30, 2015
    Inventor: Bruno TEUSCH
  • Publication number: 20130292913
    Abstract: The invention relates to a hydraulic expansion chuck (1) with a hydraulic expansion mechanism (23) that is integrated into a chuck body (10, 20) and exhibits an expansion bushing (23a) with a continuous cylindrical interior wall, and to a reducing bushing (24) arranged in the expansion bushing (23a) for accommodating a shank tool (W), in particular a tap drill. According to the invention, the outer circumference of the reducing bushing (24) is positively connected with the chuck body (10, 20) in a torque-proof manner, and its inner circumference is designed to be positively connected with the shank tool (W) in a torque-proof manner.
    Type: Application
    Filed: April 9, 2013
    Publication date: November 7, 2013
    Inventor: Bruno TEUSCH
  • Patent number: 5277435
    Abstract: A cylindrical standard shank is provided for rotating cutting tools for locating a standard shank in a cylindrical location opening, precisely produced with regard to shape and true-running accuracy, in the work spindles of so-called transfer lines or of, for example, steep-taper adaptors. The cutting tool is, in turn, fixed by a cylindrical press connection in the standard shank serving as an adaptor between the tool shank and standardized location opening. The standard shank has, at the front, a longitudinally slotted clamping sleeve accurately machined on the inside and outside. The clamping sleeve is clamped by an accurately machined shrink collar of shape-memory alloy which is approximately the same length and has at least the same wall thickness, is present in the austenitic structural state at room temperature and in the process is reduced in diameter on account of suitable pretreatment, and bears tightly against the periphery of the clamping sleeve.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: January 11, 1994
    Assignee: Mercedes-Benz AG
    Inventors: Johann Kramer, Bruno Teusch, Rainer Renz, Dieter Jenuwein