Patents by Inventor Sean Walters
Sean Walters 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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Publication number: 20240105429Abstract: A substrate support includes an edge ring, a heater element arranged within the edge ring, a ceramic layer, at least one heating element arranged within the ceramic layer, and a cable configured to provide power from a power source to the heater element and the at least one heating element. The cable includes a first plurality of wires connected to the heater element, a second plurality of wires connected to the at least one heating element, a filter module, and an isolation device connected only to the first plurality of wires between the filter module and the heater element. The first and second pluralities of wires are twisted together within the filter module. The isolation device is configured to compensate for a resonance frequency generated during operation of the heater element and the at least one heating element.Type: ApplicationFiled: December 1, 2023Publication date: March 28, 2024Inventors: Seyed Jafar JAFARIAN-TEHRANI, Kenneth Walter Finnegan, Sean O'Brien, Benson Q. Tong
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Patent number: 11814980Abstract: A bladed disc system for a turbine engine having a disk portion and a plurality of blade portions which are associated with a stator section and an intercavity sealing portion, disc portion shaped such that blade portions are able to fit within firtree slot in disc portion, blade portion having aerofoil section and root section, aerofoil section having portion shaped such that they extend proximate to intercavity sealing portion, disc portion extending from portion that connects with drum to outer edge at which blade portions are connected with disc portion having width transition region in which thickness of disc increases from point at which disc connects to drum to outer edge at which it holds blade portions, and wherein width transition region has curved width transition region with radius r, and an overhanging portion which extends into the intercavity spacing between the width transition region and the intercavity sealing portion.Type: GrantFiled: October 14, 2022Date of Patent: November 14, 2023Assignee: ROLLS-ROYCE plcInventors: Sean A Walters, John Irving, Nomesh P Kandaswamy, Jessica Kennedy, Benjamin Littley, Kali Charan Nayak, Guy D Snowsill
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Publication number: 20230122729Abstract: A bladed disc system for a turbine engine, the bladed disk portion comprising a disk portion and a plurality of blade portions, the disc portion being shaped such that the blade portions are able to fit within fir tree slot in the disc portion, the blade portion comprising an aerofoil section and a root section, with the root section comprising a fir tree profile and a skirt portion and wherein the skirt portions of adjacent blades form an opening that has a maximum separation of between 1-50% of the maximum skirt opening width.Type: ApplicationFiled: October 14, 2022Publication date: April 20, 2023Applicant: ROLLS-ROYCE plcInventors: Guy D SNOWSILL, Kali Charan NAYAK, Benjamin LITTLEY, John IRVING, Nomesh P KANDASWAMY, Jessica KENNEDY, Sean A WALTERS
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Publication number: 20230122071Abstract: A bladed disc system for a turbine engine having a disk portion and a plurality of blade portions which are associated with a stator section and an intercavity sealing portion, disc portion shaped such that blade portions are able to fit within firtree slot in disc portion, blade portion having aerofoil section and root section, aerofoil section having portion shaped such that they extend proximate to intercavity sealing portion, disc portion extending from portion that connects with drum to outer edge at which blade portions are connected with disc portion having width transition region in which thickness of disc increases from point at which disc connects to drum to outer edge at which it holds blade portions, and wherein width transition region has curved width transition region with radius r, and an overhanging portion which extends into the intercavity spacing between the width transition region and the intercavity sealing portion.Type: ApplicationFiled: October 14, 2022Publication date: April 20, 2023Applicant: ROLLS-ROYCE plcInventors: Sean A WALTERS, John IRVING, Nomesh P KANDASWAMY, Jessica KENNEDY, Benjamin LITTLEY, Kali Charan NAYAK, Guy D SNOWSILL
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Patent number: 10677064Abstract: An assembly for receiving in a radially extending bucket groove (31) of a turbine disc (22), the assembly including a turbine blade having an elongate body (26) of aerofoil cross-section, a root portion (24) at one end of the elongate body (26) and a tip at the other. The root portion (24) configured to be retained in the bucket groove (31). A heat shield (27) configured to be received between an end of the root portion (24) and a radially inner surface of the bucket groove (31) and to interlock with the root portion (24) in a manner which deters separation in a radial direction.Type: GrantFiled: January 8, 2018Date of Patent: June 9, 2020Assignee: ROLLS-ROYCE PLCInventors: Neal Carter, Sean A. Walters
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Publication number: 20180195394Abstract: An assembly for receiving in a radially extending bucket groove (31) of a turbine disc (22), the assembly including a turbine blade having an elongate body (26) of aerofoil cross-section, a root portion (24) at one end of the elongate body (26) and a tip at the other. The root portion (24) configured to be retained in the bucket groove (31). A heat shield (27) configured to be received between an end of the root portion (24) and a radially inner surface of the bucket groove (31) and to interlock with the root portion (24) in a manner which deters separation in a radial direction.Type: ApplicationFiled: January 8, 2018Publication date: July 12, 2018Applicant: ROLLS-ROYCE plcInventors: Neal Carter, Sean A. Walters
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Patent number: 9001884Abstract: The present invention provides methods and apparatus for acquisition, compression, and characterization of spatiotemporal signals. In one aspect, the invention assesses self-similarity over the entire length of a spatiotemporal signal, as well as on a moving attention window, to provide cost effective measurement and quantification of dynamic processes. The invention also provides methods and apparatus for measuring self-similarity in spatiotemporal signals to characterize, adaptively control acquisition and/or storage, and assign meta-data for further detail processing. In some embodiments, the invention provides for an apparatus adapted for the characterization of biological units, and methods by which attributes of the biological units can be monitored in response to the addition or removal of manipulations, e.g., treatments.Type: GrantFiled: January 6, 2010Date of Patent: April 7, 2015Assignee: Reify CorporationInventors: Arman M. Garakani, Andrew A. Hack, Peter Roberts, Sean Walter
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Publication number: 20140144248Abstract: A valve includes a housing, a stern supported by the housing, and a valve member coupled to the stem. The valve member has a first passage defined therein with a metering flow profile, An apparatus includes a well tree having a production bore and a flow metering valve coupled to the well tree and communicating with the production bore. The flow metering valve Includes a valve member having a first passage defined therein with a metering flow profile and a second passage defined therein with an unrestricted flow profile. The second passage having a diameter substantially equal to a diameter of the production bore.Type: ApplicationFiled: November 15, 2010Publication date: May 29, 2014Inventor: Sean Walters
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Patent number: 8479571Abstract: A measurement device is disclosed which includes a structure adapted to be removably coupled to a Christmas tree, a sleeve operatively coupled to the structure and a flowmeter positioned at least partially within the sleeve.Type: GrantFiled: December 28, 2011Date of Patent: July 9, 2013Assignee: FMC Technologies, Inc.Inventors: David Zollo, Andrew Beck, Sean Walters
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Publication number: 20120096947Abstract: A measurement device is disclosed which includes a structure adapted to be removably coupled to a Christmas tree, a sleeve operatively coupled to the structure and a flowmeter positioned at least partially within the sleeve.Type: ApplicationFiled: December 28, 2011Publication date: April 26, 2012Inventors: David Zollo, Andrew Beck, Sean Walters
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Patent number: 8104337Abstract: A measurement device is disclosed which includes a structure adapted to be removably coupled to a Christmas tree, a sleeve operatively coupled to the structure and a flowmeter positioned at least partially within the sleeve.Type: GrantFiled: August 24, 2009Date of Patent: January 31, 2012Assignee: FMC Technologies, Inc.Inventors: David Zollo, Andrew Beck, Sean Walters
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Patent number: 8011890Abstract: An air-cooled component such as a turbine stator vane, has a row of cooling passages extending from the interior of the vane to the exterior. The passages are inclined to a plane perpendicular to the row. The angle of inclination of each passage varies with the position of the passage along the row. The arrangement assists in avoiding local overheating of the vane surface.Type: GrantFiled: October 23, 2007Date of Patent: September 6, 2011Assignee: Rolls-Royce PLCInventors: Sean A. Walters, Kevin P. Self, Brian G. Cooper
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Patent number: 7992434Abstract: A measurement device is disclosed which includes a structure adapted to be removably coupled to a Christmas tree, a sleeve operatively coupled to the structure and a flowmeter positioned at least partially within the sleeve.Type: GrantFiled: August 24, 2009Date of Patent: August 9, 2011Assignee: FMC Technologies, Inc.Inventors: David Zollo, Andrew Beck, Sean Walters
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Patent number: 7993106Abstract: A core, for use in a casting mould to form a cavity in a cast component such as a blade or vane of a gas turbine engine. The core has a relatively fragile thin-walled region. A bead is formed along a lateral edge of the thin-walled portion in order to reduce cracking or other damage in the thin-walled portion.Type: GrantFiled: November 26, 2007Date of Patent: August 9, 2011Assignee: Rolls-Royce PLCInventor: Sean A. Walters
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Patent number: 7938621Abstract: A pressure actuated tip clearance system for a shroud structure of a gas turbine engine rotary stage includes an annular plenum chamber formed between an annular arrangement of a plurality of shroud liners on the inner circumference of the chamber and a generally cylindrical casing on the radially outer side, and, in use, a hot gas stream radially inwards of the shroud liners. Each shroud liner comprises a hollow box section comprising upstream and downstream walls, radially inner and outer walls, and side walls, the downstream and radially inner and outer walls being closed, the upstream wall having an air inlet aperture, and at least one of the side walls having at least one outlet aperture. The inlet aperture is in flow communication with a source of high pressure air at a pressure higher than that of the gas stream.Type: GrantFiled: October 28, 1998Date of Patent: May 10, 2011Assignee: Rolls-Royce PLCInventors: Julian G Balsdon, Sean A Walters
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Patent number: 7819627Abstract: An aerofoil made from a sheet metal blank which is bent in the shape of an aerofoil such that it has a leading edge, a trailing edge, a pressure side and a suction side, and the blank is joined at the trailing edge. The regions of the sheet metal blank that form the leading edge, trailing edge and pressure side of the aerofoil comprise a plurality of perforations. The suction side region of the sheet metal blank is imperforate.Type: GrantFiled: May 17, 2007Date of Patent: October 26, 2010Assignee: Rolls-Royce PLCInventor: Sean A Walters
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Publication number: 20100104203Abstract: The present invention provides methods and apparatus for acquisition, compression, and characterization of spatiotemporal signals. In one aspect, the invention assesses self-similarity over the entire length of a spatiotemporal signal, as well as on a moving attention window, to provide cost effective measurement and quantification of dynamic processes. The invention also provides methods and apparatus for measuring self-similarity in spatiotemporal signals to characterize, adaptively control acquisition and/or storage, and assign meta-data for further detail processing. In some embodiments, the invention provides for an apparatus adapted for the characterization of biological units, and methods by which attributes of the biological units can be monitored in response to the addition or removal of manipulations, e.g., treatments.Type: ApplicationFiled: January 6, 2010Publication date: April 29, 2010Inventors: Arman M. Garakani, Andrew A. Hack, Peter Roberts, Sean Walter
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Patent number: 7672369Abstract: The present invention provides methods and apparatus for acquisition, compression, and characterization of spatiotemporal signals. In one aspect, the invention assesses self-similarity over the entire length of a spatiotemporal signal, as well as on a moving attention window, to provide cost effective measurement and quantification of dynamic processes. The invention also provides methods and apparatus for measuring self-similarity in spatiotemporal signals to characterize, adaptively control acquisition and/or storage, and assign meta-data for further detail processing. In some embodiments, the invention provides for an apparatus adapted for the characterization of biological units, and methods by which attributes of the biological units can be monitored in response to the addition or removal of manipulations, e.g., treatments.Type: GrantFiled: February 13, 2003Date of Patent: March 2, 2010Assignee: Reify CorporationInventors: Arman M. Garakani, Andrew A. Hack, Peter Roberts, Sean Walter
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Publication number: 20090308152Abstract: A measurement device is disclosed which includes a structure adapted to be removably coupled to a Christmas tree, a sleeve operatively coupled to the structure and a flowmeter positioned at least partially within the sleeve.Type: ApplicationFiled: August 24, 2009Publication date: December 17, 2009Inventors: David Zollo, Andrew Beck, Sean Walters
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Patent number: D1024833Type: GrantFiled: July 19, 2022Date of Patent: April 30, 2024Assignee: Portal Infinity Mirrors, Inc.Inventors: Sean Conrad Stephens, Jasmine Mercedes Muhammad, John Walter Sanders