Patents by Inventor Stefan Esser
Stefan Esser 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: 10811239Abstract: Cylindrical evaporation source which includes, at an outer cylinder wall, target material to be evaporated as well as a first magnetic field source and a second magnetic field source which form at least a part of a magnet system and are arranged in an interior of the cylindrical evaporation source for generating a magnetic field. In this respect, first magnetic field source and second magnetic field source are provided at a carrier system such that a shape and/or a strength of the magnetic field can be set in a predefinable spatial region in accordance with a predefinable scheme. In embodiments, the carrier system is configured for setting the shape and/or strength of the magnetic field of the carrier system such that the first magnetic field source is arranged at a first carrier arm and is pivotable by a predefinable pivot angle (?1) with respect to a first pivot axis.Type: GrantFiled: February 24, 2014Date of Patent: October 20, 2020Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKONInventors: Joerg Vetter, Stefan Esser, Jurgen Mueller, Georg Erkens
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Patent number: 9728382Abstract: Evaporation source, in particular for use in a sputtering process or in a vacuum arc evaporation process, preferably a cathode vacuum arc evaporation process. The evaporation source includes an inner base body which is arranged in an outer carrier body and which is arranged with respect to the outer carrier body such that a cooling space in flow communication with an inlet and an outlet is formed between the base body and the carrier body. In accordance with the invention, the cooling space includes an inflow space and an outflow space, and the inflow space is in flow communication with the outflow space via an overflow connection for the cooling of the evaporation source such that a cooling fluid can be conveyed from the inlet via the inflow space the overflow connection and the outflow space to the outlet.Type: GrantFiled: January 24, 2014Date of Patent: August 8, 2017Assignee: OERLIKON SURFACE SOLUTIONS AG, PFAEFFIKONInventors: Joerg Vetter, Stefan Esser, Juergen Mueller, Georg Erkens
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Publication number: 20140238852Abstract: Cylindrical evaporation source which includes, at an outer cylinder wall, target material to be evaporated as well as a first magnetic field source and a second magnetic field source which form at least a part of a magnet system and are arranged in an interior of the cylindrical evaporation source for generating a magnetic field. In this respect, first magnetic field source and second magnetic field source are provided at a carrier system such that a shape and/or a strength of the magnetic field can be set in a predefinable spatial region in accordance with a predefinable scheme. In embodiments, the carrier system is configured for setting the shape and/or strength of the magnetic field of the carrier system such that the first magnetic field source is arranged at a first carrier arm and is pivotable by a predefinable pivot angle (?1) with respect to a first pivot axis.Type: ApplicationFiled: February 24, 2014Publication date: August 28, 2014Applicant: SULZER METAPLAS GMBHInventors: Joerg VETTER, Stefan ESSER, Jurgen MUELLER, Georg ERKENS
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Patent number: 8783673Abstract: A workpiece carrier has a base frame, a shaft surrounding a drive axis and a workpiece carrier and includes a rotary frame mounted on the base frame so as to be rotatable about the drive axis, workpiece holders mounted on the rotary frame so as to be rotatable about holding axes, a driving part with a holder mounted so as to be rotatable about the drive axis, a transmission part operationally connected to the rotatably mounted workpiece holders, and an intermediate gear attached to the rotatably mounted holder. The intermediate gear is connected to the shaft and to the transmission part in such a way that the transmission part engages with the driving part so as to be rotatable about an output point that is spaced apart from the drive axis by an eccentricity.Type: GrantFiled: September 4, 2013Date of Patent: July 22, 2014Assignee: Oerlikon Trading AG, TrubbachInventors: Stefan Esser, Martin Zaech
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Publication number: 20140174920Abstract: Evaporation source, in particular for use in a sputtering process or in a vacuum arc evaporation process, preferably a cathode vacuum arc evaporation process. The evaporation source includes an inner base body which is arranged in an outer carrier body and which is arranged with respect to the outer carrier body such that a cooling space in flow communication with an inlet and an outlet is formed between the base body and the carrier body. In accordance with the invention, the cooling space includes an inflow space and an outflow space, and the inflow space is in flow communication with the outflow space via an overflow connection for the cooling of the evaporation source such that a cooling fluid can be conveyed from the inlet via the inflow space the overflow connection and the outflow space to the outlet.Type: ApplicationFiled: January 24, 2014Publication date: June 26, 2014Applicant: SULZER METAPLAS GMBHInventors: Joerg VETTER, Stefan ESSER, Juergen MUELLER, Georg ERKENS
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Publication number: 20140109827Abstract: Discs (7) arranged along a shaft and having holders (8) distributed over the circumference, inclined outwards and intended for workpieces are supported on a ring (5) surrounding the discs (7). Successive rings (5) form an approximately cylindrical cladding which prevents undesired coating of the discs (7). Cladding has openings for the holders (8) of a disc (7) which are uniformly distributed over the circumference at the same height, each formed by an upper recess (14) in the ring (5) carrying the disc (7) and an adjacent lower recess (15) of the following ring. Boundary lines (17) between successive rings (5) start somewhat below the narrowest points of the webs separating adjacent openings, so that the lower recesses (15) do not narrow towards the edge of the ring (5) and the upper recesses (14) narrow at most slightly so that the workpiece carrier can be assembled from bottom to top.Type: ApplicationFiled: December 27, 2013Publication date: April 24, 2014Applicant: OERLIKON TRADING AG, TRUEBBACHInventor: Stefan ESSER
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Publication number: 20140008857Abstract: A workpiece carrier has a base frame, a shaft surrounding a drive axis and a workpiece carrier and includes a rotary frame mounted on the base frame so as to be rotatable about the drive axis, workpiece holders mounted on the rotary frame so as to be rotatable about holding axes, a driving part with a holder mounted so as to be rotatable about the drive axis, a transmission part operationally connected to the rotatably mounted workpiece holders, and an intermediate gear attached to the rotatably mounted holder. The intermediate gear is connected to the shaft and to the transmission part in such a way that the transmission part engages with the driving part so as to be rotatable about an output point that is spaced apart from the drive axis by an eccentricity.Type: ApplicationFiled: September 4, 2013Publication date: January 9, 2014Applicant: Oerlikon Trading AG, TrubbachInventors: Stefan ESSER, Martin ZACH
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Patent number: 8596626Abstract: A workpiece carrier (2) comprises a rotary frame (3) and a driving part (22), both of which are rotatable about a driving axle (4). The rotary frame (3) can be driven by a motor (6), and carries a plurality of workpiece holders (13) which are distributed around the driving axle (4) so as to be rotatable about holder axes. Mounted in the driving part (22) on a mount is a pinion (25) which engages with a stationary central wheel (21) and a ring gear (27) of a transmission part (26), at the centre of which lies an output point (29) which is at a distance of an eccentricity from the driving axle (4). Driving apertures (28) on the transmission part (26), through which driving pins (19) of the workpiece holders (13) project, are also at the distance of the eccentricity from the holder axes.Type: GrantFiled: October 2, 2008Date of Patent: December 3, 2013Assignee: Oerlikon Trading AG, TrubbachInventors: Stefan Esser, Martin Zäch
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Publication number: 20110083604Abstract: A plurality of discs arranged along a central shaft and having holders uniformly distributed over the circumference, inclined obliquely outwards and intended for workpieces are supported in each case on a ring surrounding the discs. The successive rings form an approximately cylindrical cladding which prevents undesired coating of the discs. The cladding has groups of openings for the holders of a disc which are uniformly distributed over the circumference at the same height and each of which is formed by an upper recess in the ring carrying the disc and an adjacent lower recess of the following ring. Boundary lines between successive rings start in each case somewhat below the narrowest points of the webs separating adjacent openings, so that the lower recesses in each case do not narrow towards the edge of the ring and the upper recesses narrow at most slightly in such a way that the workpiece carrier can be assembled from bottom to top without difficulties.Type: ApplicationFiled: June 4, 2009Publication date: April 14, 2011Inventor: Stefan Esser
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Publication number: 20100270722Abstract: A workpiece carrier (2) comprises a rotary frame (3) and a driving part (22), both of which are rotatable about a driving axle (4). The rotary frame (3) can be driven by a motor (6), and carries a plurality of workpiece holders (13) which are distributed around the driving axle (4) so as to be rotatable about holder axes. Mounted in the driving part (22) on a mount is a pinion (25) which engages with a stationary central wheel (21) and a ring gear (27) of a transmission part (26), at the centre of which lies an output point (29) which is at a distance of an eccentricity from the driving axle (4). Driving apertures (28) on the transmission part (26), through which driving pins (19) of the workpiece holders (13) project, are also at the distance of the eccentricity from the holder axes.Type: ApplicationFiled: October 2, 2008Publication date: October 28, 2010Inventors: Stefan Esser, Martin Zäch
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Patent number: 7588640Abstract: A workpiece carrier (2) comprises a rotary frame (3) and a driving part (20), both of which are rotatable about a driving axle (4). The rotary frame (3) can be driven by a motor (6), and carries a plurality of workpiece holders (13) which are distributed around the driving axle (4) so as to be rotatable about holder axes. A driving disc (22) of the driving part (21) is in each case rotatable about an anchorage point (23) from which its center point is at a distance of an eccentricity (E). A transmission part (25) having a coupling cutout which closely receives the driving disc (22) has driving apertures (26) through which there project driving pins (19) of the workpiece holders (13), which said driving pins (19) are likewise at a distance of the eccentricity (E) from the holder axes. The driving part (20) can be driven at a greater angular velocity by the rotation of the rotary frame (3), via an auxiliary gear set (31) attached to the base frame (1).Type: GrantFiled: July 27, 2006Date of Patent: September 15, 2009Assignee: Oerlikon Trading AG, TrubbachInventor: Stefan Esser
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Publication number: 20070057138Abstract: A workpiece carrier (2) comprises a rotary frame (3) and a driving part (20), both of which are rotatable about a driving axle (4). The rotary frame (3) can be driven by a motor (6), and carries a plurality of workpiece holders (13) which are distributed around the driving axle (4) so as to be rotatable about holder axes. A driving disc (22) of the driving part (21) is in each case rotatable about an anchorage point (23) from which its centre point is at a distance of an eccentricity (E). A transmission part (25) having a coupling cutout which closely receives the driving disc (22) has driving apertures (26) through which there project driving pins (19) of the workpiece holders (13), which said driving pins (19) are likewise at a distance of the eccentricity (E) from the holder axes. The driving part (20) can be driven at a greater angular velocity by the rotation of the rotary frame (3), via an auxiliary gear set (31) attached to the base frame (1).Type: ApplicationFiled: July 27, 2006Publication date: March 15, 2007Inventor: Stefan Esser
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Patent number: 6869334Abstract: The invention relates to a process for producing a hard-material-coated component, comprising the following steps: application of a layer of hard material to the component in a PVD coating unit; and structural further processing of the outer surface of the layer of hard material, and to a component produced using the process. Particularly in the case of thick coatings or coatings with a columnar structure, such processes have a problem producing a sufficiently smooth surface on the coating. The problem is solved by the fact that for the structural further processing, the surface of the layer is blasted in a blasting device in order to improve this surface, an inorganic blasting agent with a grain size in the range from 1 ?m to 100 ?m and a sharp-edged grain shape being used.Type: GrantFiled: May 29, 2000Date of Patent: March 22, 2005Assignee: Cemecon-Ceramic Metal Coatings-Dr. Ing. Antonius Leyendecker GmbHInventors: Antonius Leyendecker, Hans-Gerd Fuss, Rainer Wenke, Georg Erkens, Stefan Esser, Ingo Künzel
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Patent number: 6352627Abstract: The invention relates to a PVD coating method and to a PVD coating device with a chamber in which at least one target cathode, at least one anode and at least one substrate holder which is intended to hold at least one substrate are arranged, and with a control device which delivers a first voltage in order to supply the target cathode with a negative electrical potential relative to the anode in order to form a plasma in which the substrate is arranged, and which delivers a second voltage in order to supply the anode with a positive electrical potential relative to the chamber wall. In this sputter-coating device, the ion fraction of the target material which can be achieved is too low for qualitatively satisfactory coating properties. It is increased according to the invention in that the control device delivers a third voltage which supplies the substrate with an electrical potential that is more negative than the potential of the anode.Type: GrantFiled: October 14, 1999Date of Patent: March 5, 2002Assignee: Cemecon-Ceramic Metal CoatingsInventors: Antonius Leyendecker, Georg Erkens, Stefan Esser, Hans-Gerd Fuss, Bernd Hermeler, Rainer Wenke
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Publication number: 20010009225Abstract: The invention relates to a PVD coating method and to a PVD coating device with a chamber (1) in which at least one target cathode (3), at least one anode (2) and at least one substrate holder (9) which is intended to hold at least one substrate (10) are arranged, and with a control device (4, 6, 7) which delivers a first voltage in order to supply the target cathode (3) with a negative electrical potential relative to the anode (2) in order to form a plasma (P) in which the substrate (10) is arranged, and which delivers a second voltage in order to supply the anode (2) with a positive electrical potential relative to the chamber wall (8). In this sputter-coating device, the ion fraction of the target material which can be achieved is too low for qualitatively satisfactory coating properties.Type: ApplicationFiled: October 14, 1999Publication date: July 26, 2001Inventors: ANTONIUS LEYENDECKER, GEORG ERKENS, STEFAN ESSER, HANS-GERD FUSS, BERND HERMELER, RAINER WENKE
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Patent number: 5272014Abstract: A multi-component, metal-containing, wear-resistant coating which is not homogeneous. The coating has a difference of a metallic element concentration of at least about 2 atom percent between the edges of the coating surface and the coating surface remote from the edge. Non-homogeneous coatings of the invention are surprisingly wear-resistant compared to homogeneous coatings.The invention also relates to a method of applying the coatings of the invention by a PVC-process or a plasma-CVD-process wherein the electrical potential difference between the substrate and the ionized coating material is selected to enhance the inhomogeneity of the coating.Type: GrantFiled: July 21, 1989Date of Patent: December 21, 1993Assignee: Dr.-Ing. Toni LeyendeckerInventors: Toni Leyendecker, Stefan Esser, Oliver Lemmer