Patents by Inventor Mike Abrecht
Mike Abrecht 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: 11011350Abstract: A power capacitor (7) is described for use in an RF power delivery system. The power capacitor comprises at least two RF electrodes (18, 19) separated by a capacitor dielectric (17) comprising a solid paraelectric dielectric material whose relative permittivity is controllable by varying a DC bias voltage applied across the dielectric (17) at DC bias electrodes (10, 26, 28). Composite capacitor configurations, an RF power system and a method of controlling the power capacitor are also described.Type: GrantFiled: September 4, 2014Date of Patent: May 18, 2021Inventors: Mike Abrecht, Thomas Fink, Walter Bigler
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Publication number: 20180233330Abstract: A power capacitor (7) is described for use in an RF power delivery system. The power capacitor comprises at least two RF electrodes (18, 19) separated by a capacitor dielectric (17) comprising a solid paraelectric dielectric material whose relative permittivity is controllable by varying a DC bias voltage applied across the dielectric (17) at DC bias electrodes (10, 26, 28). Composite capacitor configurations, an RF power system and a method of controlling the power capacitor are also described.Type: ApplicationFiled: September 4, 2014Publication date: August 16, 2018Applicant: COMET AGInventors: Mike Abrecht, Thomas Fink, Walter Bigler
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Patent number: 9805873Abstract: A vacuum variable capacitor includes a pre-vacuum enclosure for reducing a pressure differential across the bellows. The vacuum force load on the drive system can thereby be reduced, allowing faster movement of the movable electrode, faster capacitance adjustment of the vacuum variable capacitor and longer lifetimes of the device.Type: GrantFiled: May 30, 2013Date of Patent: October 31, 2017Assignee: COMET AGInventors: Mark Joachim Mildner, Roland Bieri, Mike Abrecht, Walter Bigler, Douglas Beuerman, Jack Gilmore
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Patent number: 9721729Abstract: A vacuum variable capacitor includes a pre-vacuum enclosure for reducing a pressure differential across the bellows, wherein a drive is disposed outside the enclosures of the vacuum variable capacitor. The vacuum force load on the drive system can thereby be reduced, allowing faster movement of the movable electrode, faster capacitance adjustment of the vacuum variable capacitor and longer lifetimes of the device.Type: GrantFiled: May 28, 2014Date of Patent: August 1, 2017Assignee: COMET AGInventors: Mark Joachim Mildner, Roland Bieri, Mike Abrecht, Walter Bigler, Douglas Beuerman, Jack Gilmore
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Patent number: 9691548Abstract: A high-voltage capacitor includes a gas-tight enclosure containing interleaved electrodes. The dielectric of the capacitor is a pressurized gas at a pressure of at least 6 bar, and preferably 10 or 15 bar. In order to withstand this level of internal pressure, the insulating body section of the capacitor may be formed of a high-strength polymeric material.Type: GrantFiled: March 19, 2013Date of Patent: June 27, 2017Assignee: COMET AGInventors: Roger Tanner, Walter Bigler, Mark Joachim Mildner, Mike Abrecht
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Publication number: 20170004925Abstract: A variable vacuum capacitor includes two pairs of electrodes ganged together in series such that no moving parts are required to connect electrically to any static pans. Two sets, or gangs, of movable electrodes are connected mechanically and electrically together such that they move together and such that they require no electrical connection to any other part of the device. The ganged arrangement means that the device can be constructed with a smaller diameter, but without significantly increasing the overall length of the device. The variable vacuum capacitor may be a component of e.g., a power delivery system for a plasma process, a power delivery system for surface treatment, semi-conductor manufacturing equipment, photovoltaic manufacturing equipment, and flat panel manufacturing equipment.Type: ApplicationFiled: September 15, 2016Publication date: January 5, 2017Applicant: COMET AGInventors: Mike Abrecht, Roger TANNER, Mark MlLDNER, Philipp JÄGGI, Walter BIGLER
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Patent number: 9472347Abstract: A variable vacuum capacitor includes two pairs of electrodes ganged together in series such that no moving parts are required to connect electrically to any static pans. Two sets, or gangs, of movable electrodes are connected mechanically and electrically together such that they move together and such that they require no electrical connection to any other part of the device. The ganged arrangement means that the device can be constructed with a smaller diameter, but without significantly increasing the overall length of the device.Type: GrantFiled: February 3, 2012Date of Patent: October 18, 2016Assignee: Comet AGInventors: Mike Abrecht, Roger Tanner, Mark Joachim Mildner, Philipp Jäggi, Walter Bigler
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Publication number: 20160111218Abstract: A vacuum variable capacitor includes a pre-vacuum enclosure for reducing a pressure differential across the bellows. The vacuum force load on the drive system can thereby be reduced, allowing faster movement of the movable electrode, faster capacitance adjustment of the vacuum variable capacitor and longer lifetimes of the device.Type: ApplicationFiled: May 30, 2013Publication date: April 21, 2016Applicant: COMET AGInventors: Mark Joachim MILDNER, Roland BIERI, Mike ABRECHT, Walter BIGLER, Douglas BEUERMAN, Jack GILMORE
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Publication number: 20160093445Abstract: A vacuum variable vapacitor includes a pre-vacuum enclosure for reducing a pressure differential across the bellows, wherein a drive is disposed outside the enclosures of the vacuum variable capacitor. The vacuum force load on the drive system can thereby be reduced, allowing faster movement of the movable electrode, faster capacitance adjustment of the vacuum variable capacitor and longer lifetimes of the device.Type: ApplicationFiled: May 28, 2014Publication date: March 31, 2016Applicant: COMET AGInventors: Mark Joachim MILDNER, Roland BIERI, Mike ABRECHT, Walter BIGLER, Douglas BEUERMAN, Jack GILMORE
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Publication number: 20160005540Abstract: A high-voltage capacitor includes a gas-tight enclosure containing interleaved electrodes. The dielectric of the capacitor is a pressurized gas at a pressure of at least 6 bar, and preferably 10 or 15 bar. In order to withstand this level of internal pressure, the insulating body section of the capacitor may be formed of a high-strength polymeric material.Type: ApplicationFiled: March 19, 2013Publication date: January 7, 2016Applicant: COMET AGInventors: Roger TANNER, Walter BIGLER, Mark MILDNER, Mike ABRECHT
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Publication number: 20150009603Abstract: A variable vacuum capacitor includes two pairs of electrodes ganged together in series such that no moving parts are required to connect electrically to any static pans. Two sets, or gangs, of movable electrodes are connected mechanically and electrically together such that they move together and such that they require no electrical connection to any other part of the device. The ganged arrangement means that the device can be constructed with a smaller diameter, but without significantly increasing the overall length of the device.Type: ApplicationFiled: February 3, 2012Publication date: January 8, 2015Applicant: COMET AGInventors: Mike Abrecht, Roger Tanner, Mark Joachim Mildner, Philipp Jäggi, Walter Bigler
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Publication number: 20130100574Abstract: A vacuum capacitor has at least two electrodes in a vacuum, the electrodes being manufactured from, or coated with, aluminium or an aluminium alloy; and the housing of the vacuum capacitor includes an insulating (e.g., ceramic) part and two or more conducting parts.Type: ApplicationFiled: June 28, 2010Publication date: April 25, 2013Applicant: Comet AGInventors: Mike Abrecht, Walter Bigler, Philipp Jäggi, Mark Joachim Mildner