Patents by Inventor Urs Tschudin

Urs Tschudin 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: 20200368872
    Abstract: The invention relates to a centerless cylindrical grinding machine (100) for throughfeed and plunge grinding of arbitrary workpieces comprising a first drivable positioning axis XS for a grinding headstock (10) with a grinding wheel (11) rotatable about an axis of rotation (12) and a second drivable positioning axis XR for a regulating wheel headstock (20) with a regulating wheel (21) rotatable about an axis of rotation (22), and a workpiece support (32) arrangeable substantially between the grinding headstock (10) and the regulating wheel headstock (20), wherein a further drivable positioning axis YW, extending orthogonal to at least one of the positioning axes XS and XR, is mounted for a carriage (31) on a carriage track (30), via which the workpiece support (32) is movable, wherein the grinding headstock (10) and the regulating wheel headstock (20) are arranged in a first area (41) of a machine bed (40) and the carriage track (30) is at least partially arranged in a second area (42) of the machine bed (40)
    Type: Application
    Filed: May 15, 2020
    Publication date: November 26, 2020
    Inventor: Urs TSCHUDIN
  • Patent number: 10232484
    Abstract: A method and device for simultaneous centerless cylindrical grinding of multiple workpieces (11, 12, 13, 14), at least sections of which are rotationally symmetrical, the workpieces are arranged on a support apparatus (200) one behind the other between at least one grinding wheel (110) and at least one regulating wheel (120), and wherein the axis of rotation of the regulating wheel is inclined with respect to a horizontal plane extending parallel to the workpiece axes of rotation and the grinding wheel axis of rotation by an inclination angle (?). During grinding the workpieces are arranged with a height offset relative to each other corresponding to at least a quarter of the inclination angle (?) of the axis of rotation of the regulating wheel with respect to the parallel plane to render the respective bearing angles (?) of the workpieces on the inclined regulating wheel consistent.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: March 19, 2019
    Assignee: TSCHUDIN GMBH GRENCHEN
    Inventors: Libor Sedlacek, Urs Tschudin
  • Publication number: 20180015587
    Abstract: A method and device for simultaneous centreless cylindrical grinding of multiple workpieces (11, 12, 13, 14), at least sections of which are rotationally symmetrical, the workpieces are arranged on a support apparatus (200) one behind the other between at least one grinding wheel (110) and at least one regulating wheel (120), and wherein the axis of rotation of the regulating wheel is inclined with respect to a horizontal plane extending parallel to the workpiece axes of rotation and the grinding wheel axis of rotation by an inclination angle (?). During grinding the workpieces are arranged with a height offset relative to each other corresponding to at least a quarter of the inclination angle (?) of the axis of rotation of the regulating wheel with respect to the parallel plane to render the respective bearing angles (?) of the workpieces on the inclined regulating wheel consistent.
    Type: Application
    Filed: July 10, 2017
    Publication date: January 18, 2018
    Applicant: Tschudin GmbH Grenchen
    Inventors: Libor SEDLACEK, Urs TSCHUDIN
  • Patent number: 9085059
    Abstract: The present invention pertains to a centerless cylindrical grinding machine with a grinding wheel and a regulating wheel that can be laterally displaced toward a work piece that can be held between these wheels, and with a rest blade for supporting the work piece that is realized rigid in the vertical direction and arranged and dimensioned such that a rotational axis of the work piece and a rotational axis of the grinding wheel lie in a common plane, wherein a height adjustment of the rotational axis of the regulating wheel beyond the plane is kinematically decoupled from the lateral displacement of the regulating wheel and can be varied in order to position the regulating wheel on the supported work piece.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: July 21, 2015
    Inventors: Urs Tschudin, Libor Sedlacek
  • Patent number: 8100738
    Abstract: A grinding machine for grinding work pieces between centers, as well as for centerless grinding, features a drive for a grinding wheel and a drive for a regulating wheel. The work piece can be supported between the grinding wheel and the regulating wheel either between centers on a work piece axis or on a rest for centerless grinding. The driving axis of the regulating wheel and the work piece axis are parallel, and the wheels can be adjusted relative to the work piece independently of one another. The drive of the regulating wheel serves for driving the work piece while grinding between centers or for driving the work piece during centerless grinding. In addition, a means for measuring the contact pressure of the regulating wheel on the work piece is provided for grinding between centers. This means may consist, for example, of a pressure sensor.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: January 24, 2012
    Inventor: Urs Tschudin
  • Publication number: 20110306273
    Abstract: The present invention pertains to a centerless cylindrical grinding machine with a grinding wheel and a regulating wheel that can be laterally displaced toward a work piece that can be held between these wheels, and with a rest blade for supporting the work piece that is realized rigid in the vertical direction and arranged and dimensioned such that a rotational axis of the work piece and a rotational axis of the grinding wheel lie in a common plane, wherein a height adjustment of the rotational axis of the regulating wheel beyond the plane is kinematically decoupled from the lateral displacement of the regulating wheel and can be varied in order to position the regulating wheel on the supported work piece.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Applicant: Urs Tschudin
    Inventors: URS TSCHUDIN, Libor Sedlacek
  • Publication number: 20080248724
    Abstract: A grinding machine for grinding work pieces (3) between centers, as well as for centerless grinding, features a drive for a grinding wheel (1) and a drive for a regulating wheel (2). The work piece (3) can be supported between the grinding wheel (1) and the regulating wheel (2) either between centers on a work piece axis (W) or on a rest for centerless grinding. The driving axis of the regulating wheel (2) and the work piece axis (W) are aligned parallel and the grinding wheel (1) and the regulating wheel (2) can be adjusted relative to the work piece (3) independently of one another. The drive of the regulating wheel (2) serves for driving the work piece (3) while grinding between centers (4) or for driving the work piece (3) during centerless grinding. In addition, a means for measuring the contact pressure of the regulating wheel on the work piece is provided for grinding between centers (4). This means may consist, for example, of a pressure sensor (8).
    Type: Application
    Filed: February 5, 2008
    Publication date: October 9, 2008
    Inventor: Urs Tschudin
  • Patent number: 7223159
    Abstract: A centerless cylindrical grinding machine, for through-feed and in-feed grinding of various workpieces (8), has a first driven positioning axis XS for a grinding spindle head (2) with a grinding wheel (1) and a second driven positioning axis XR, running parallel to the positioning axis XS, for a regulating spindle head (4), with a regulating wheel (3). The positioning axes XS and XR are arranged perpendicular to the rotation axes (5, 6) or the grinding wheel (1) and the regulating wheel (3). A workpiece support (7) on a carriage (12) and an inner- or outer-acting wheel-true device (9) are arranged between the grinding spindle head (2) and the regulating spindle head (4). During operation, the grinding spindle head (2), the regulating spindle head (4), the workpiece support (7) and the wheel-true device (9) are located within a safety housing (15).
    Type: Grant
    Filed: September 3, 2001
    Date of Patent: May 29, 2007
    Inventors: Urs Tschudin, Libor Sedlacek
  • Publication number: 20040048551
    Abstract: A centerless cylindrical grinding machine, for through-feed and in-feed grinding of various workpieces (8), has a first driven positioning axis XS for a grinding spindle head (2) with a grinding wheel (1) and a second driven positioning axis XR, running parallel to the positioning axis XS, for a regulating spindle head (4), with a regulating wheel (3). The positioning axes XS and XR are arranged perpendicular to the rotation axes (5, 6) or the grinding wheel (1) and the regulating wheel (3). A workpiece support (7) on a carriage (12) and an inner- or outer-acting wheel-true device (9) are arranged between the grinding spindle head (2) and the regulating spindle head (4). During operation, the grinding spindle head (2), the regulating spindle head (4), the workpiece support (7) and the wheel-true device (9) are located within a safety housing (15).
    Type: Application
    Filed: September 26, 2003
    Publication date: March 11, 2004
    Inventors: Urs Tschudin, Libor Sedlacek
  • Patent number: 5573451
    Abstract: A cylindrical grinding machine has a machine base, a driven workhead with a slide drive and a driven wheelhead with a slide drive. The machine base is formed as a fixed plate, which can be aligned horizontally or vertically. A tailstock has a slide drive which is controllable independently of the other slide drives.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: November 12, 1996
    Inventor: Urs Tschudin