Patents by Inventor Tibor Cselle

Tibor Cselle 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: 9879356
    Abstract: In order to improve a method for decoating of ceramic hard material layers from steel and cemented carbide substrates having a ceramic hard material layer on part of the surface thereof and to make it amenable to further applications, it is proposed that the workpieces (10) to be decoated be inserted—preferably with a part thereof without a ceramic hard material layer—into guard elements, preferably protective plugs, which fit in diameter and height, and be pressed into a holder (50), the holder with the workpieces (10) to be decoated be contacted with the plus pole of the current pulse driver, an either acidic or basic electrolytic bath be selected, the contacted holder be placed into the selected electrolytic bath (30), at least one electrode (20) be positioned at a predetermined distance from the holder and the latter be contacted with the negative pole of the power pulse generator (40), the decoating is performed by means of the current pulse driver, with endpoint detection being performed continuously or
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: January 30, 2018
    Assignee: Platit AG
    Inventors: Birgit Wittel, Gunnar Lahtz, Christian Buchel, Jan Prochazka, Andreas Lumkemann, Peter Walchli, Tibor Cselle
  • Publication number: 20170204530
    Abstract: In order to improve a method for decoating of ceramic hard material layers from steel and cemented carbide substrates having a ceramic hard material layer on part of the surface thereof and to make it amenable to further applications, it is proposed that the workpieces (10) to be decoated be inserted—preferably with a part thereof without a ceramic hard material layer—into guard elements, preferably protective plugs, which fit in diameter and height, and be pressed into a holder (50), the holder with the workpieces (10) to be decoated be contacted with the plus pole of the current pulse driver, an either acidic or basic electrolytic bath be selected, the contacted holder be placed into the selected electrolytic bath (30), at least one electrode (20) be positioned at a predetermined distance from the holder and the latter be contacted with the negative pole of the power pulse generator (40), the decoating is performed by means of the current pulse driver, with endpoint detection being performed continuously or
    Type: Application
    Filed: March 18, 2014
    Publication date: July 20, 2017
    Applicant: Platit AG
    Inventors: Birgit Wittel, Gunnar Lahtz, Christian Buchel, Jan Prochazka, Andreas Lumkemann, Peter Walchli, Tibor Cselle
  • Publication number: 20140311895
    Abstract: To improve the result of a glow discharge process is disclosed to be performed in a Physical Vapor Deposition (PVD) coating apparatus comprising a door, at least 2 lateral rotating cathodes with targets. The apparatus is equipped by rotating shields or tube shutters (4). The method comprises the steps of operating the apparatus so that the arc of said second electrode (2) burns directly to said door. The rotary shield or tube shutter on a first electrode (1) is open and said rotary shield or tube shutter (4) on a second electrode (2) is closed. Then a positive potential is applied on said first electrode (1), so that a potential between said second electrode (2) and said first electrode (1) is applied. The positive potential applied on said first electrode (1) is selected so that the electron stream does not burn only against the door since the electrons being affected by the higher potential to said first electrode (1).
    Type: Application
    Filed: May 3, 2012
    Publication date: October 23, 2014
    Inventors: Tibor Cselle, Jllek Mojmir
  • Patent number: 8349474
    Abstract: The invention relates to a hob cutter tool with a coating, wherein the coating is produced by a physical vapor deposition method, in which in a coating chamber in an atmosphere containing nitrogen, an arc discharge is generated in each case between at least one anode and at least one pure Al cathode on the one hand, and at least one pure Cr cathode on the other hand, and in this way, Al and Cr are vaporized from the cathode, in which the hob cutter tool to be coated is rotated in the coating chamber, wherein the tool is subsequently guided past the at least two cathodes, and in which the vaporized Al and Cr is deposited in atomic or ionized form together with nitrogen from the atmosphere containing nitrogen onto the hob cutter tool led rotating past the cathodes.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: January 8, 2013
    Assignee: Fette GmbH
    Inventors: Marcus Morstein, Tibor Cselle, Andreas Lumkemann, Jorn Kohlscheen
  • Publication number: 20100062257
    Abstract: The invention relates to a hob cutter tool with a coating, wherein the coating is produced by a physical vapor deposition method, in which in a coating chamber in an atmosphere containing nitrogen, an arc discharge is generated in each case between at least one anode and at least one pure Al cathode on the one hand, and at least one pure Cr cathode on the other hand, and in this way, Al and Cr are vaporized from the cathode, in which the hob cutter tool to be coated is rotated in the coating chamber, wherein the tool is subsequently guided past the at least two cathodes, and in which the vaporized Al and Cr is deposited in atomic or ionized form together with nitrogen from the atmosphere containing nitrogen onto the hob cutter tool led rotating past the cathodes.
    Type: Application
    Filed: August 18, 2009
    Publication date: March 11, 2010
    Applicants: FETTE GMBH, PLATIT AG
    Inventors: Marcus Morstein, Tibor Cselle, Andreas Lumkemann, Jorn Kohlscheen
  • Publication number: 20070137566
    Abstract: The invention relates to a vacuum chamber for coating items (10) in which a physical vapor deposition method (PVD) is carried out. The aim of the invention is to create a vacuum chamber of the aforementioned kind which can be provided with modular cathodes. For this purpose, the vacuum chamber is provided with a plurality of receiving devices in which a plurality of cathodes each can be arranged. A first receiving device (30) for receiving one or more cathodes (40, 42, 44, 46) is provided substantially in the center of the vacuum chamber (20) and two additional receiving devices (32, 34) for receiving at least one cathode (48, 50, 52, 54) each are provided on the edges of the vacuum chamber (20) in a door-like manner.
    Type: Application
    Filed: October 15, 2004
    Publication date: June 21, 2007
    Applicants: PLATIT AG, PIVOT a.s.
    Inventors: Tibor Cselle, Mojmir Jilek
  • Patent number: 6926811
    Abstract: A method is provided for coating objects in a vacuum chamber in which a physical vapor deposition (PVD) can be carried out. The chamber has at least one anode means, at least one cathode and at least one magnetic field source. An arc can be ignited between the at least one anode means and the at least one cathode, and the cathode separates material. The at least one magnetic field can be turned relative to the at least one cathode and the objects to be coated are arranged in the chamber. The magnetic field is turned before the beginning of the coating process so that the separated material does not coat the objects to be coated in the coating process.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: August 9, 2005
    Assignee: PIVOT a.s.
    Inventors: Marcus Morstein, Tibor Cselle, Pavel Holubar, Mojmir Jilek, Peter Blösch
  • Publication number: 20040007455
    Abstract: A PVD method is proposed for coating substrates (10) in a vacuum chamber (20) with at least one anode (30), a cathode (40) and a magnetic field source (42). The cathode (40) can be controlled by the magnetic field source (42) in relation to the direction of the separated material. The method is based on the additional step of effectively turning the magnetic field source before the coating process so that the particles separated from the cathode (40) by the arc can impact on a chamber wall and thus cleaning processes can be carried out in the chamber and at the cathode. It is further proposed that the coating should be carried out successively in relation to the height by moving the magnetic field source (42) upwards and downwards, wherein the magnetic field source (42) is turned relative to the cathode (40) during the upward and downward movement and thus the deposition rate is varied in relation to the height.
    Type: Application
    Filed: April 22, 2003
    Publication date: January 15, 2004
    Applicant: PIVOT a.s.
    Inventors: Marcus Morstein, Tibor Cselle, Pavel Holubar, Mojmir Jilek, Peter Blosch
  • Patent number: 6586862
    Abstract: A piezoelectric adjusting mechanism includes a piezoelectric displacing element that is placed in contact with a cutting element and that is provided for displacing the cutting element with regard to a tool shaft. The mechanism also includes a holding mechanism for holding the first displacing element in a determined deformation state. The piezoelectric adjusting mechanism can be used, in particular, for a fine boring tool in order to adjust cutting elements, the elements being arranged on the outer periphery of the fine boring tool, in a radial direction of the fine boring tool.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: July 1, 2003
    Inventor: Tibor Cselle
  • Patent number: 6261034
    Abstract: A boring bit, especially a multi-blade boring bit. The bit preferably has a point symmetric cutting edge arrangement having main and secondary cutting edges that are tilted towards the axis of the boring bit. In order to stabilize the tool against vibrations cased by the cutting force, the secondary cutting edge is tilted along an effective length that is substantially axial in the direction of cutting thereby having a negative tool side rake.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: July 17, 2001
    Inventor: Tibor Cselle
  • Patent number: 6213692
    Abstract: A cutting tool, especially a drill, milling cutter, screw tap, reamer and core drill, comprising a shaft and a cutting member on which at least one cutting edge is provided for machining a workpiece, the cutting member being provided with a slide layer which has a lower hardness than a base layer of the cutting member.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: April 10, 2001
    Assignees: Vilab AG
    Inventors: Joerg Guehring, Tibor Cselle, Johann Rechberger
  • Patent number: 5890849
    Abstract: The invention therefore provides a tool holder for tools supplied with coolant or lubricant, especially rotating tools such as boring or milling tools, with an internal duct system for passing coolant or lubricant to the shank of the tool. To enable particularly flexible use of machine tools, the tool holder is equipped according to the invention with a lubricant reservoir which is integrated into the tool holder and which is preferably fillable and pressurizable, which during operation of the tool can be decoupled from a coolant or lubricant source and supplies the tool controllably with coolant and lubricant via a metering unit.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: April 6, 1999
    Assignee: Gottlieb Guehring KG
    Inventor: Tibor Cselle