Patents by Inventor Stuart Hodgson
Stuart Hodgson 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: 11686218Abstract: A gas turbine engine having a bearing housing with a housing cavity and a shaft rotating about a rotation axis. One or more bearings support the shaft. A housing supporting the bearing and defining a chamber axially adjacent to the bearing. A seal assembly is in the housing between the chamber and an exterior of the chamber. The seal assembly includes a seal supported by the housing and surrounding the shaft so as to define an annular gap between an inner surface of the seal and an outer surface associated to the shaft, the gap defining a part of a sealing path of the seal assembly for air to flow from said exterior into the chamber. An impeller rotates with the shaft and located radially inward of the gap relative to the rotation axis, the impeller oriented to drive oil toward the bearing.Type: GrantFiled: August 21, 2020Date of Patent: June 27, 2023Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Stuart Hodgson, Felipe Perez, Daniel Poirier, Nadim Antoine Najjar
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Publication number: 20220056814Abstract: A gas turbine engine having a bearing housing with a housing cavity and a shaft rotating about a rotation axis. One or more bearings support the shaft. A housing supporting the bearing and defining a chamber axially adjacent to the bearing. A seal assembly is in the housing between the chamber and an exterior of the chamber. The seal assembly includes a seal supported by the housing and surrounding the shaft so as to define an annular gap between an inner surface of the seal and an outer surface associated to the shaft, the gap defining a part of a sealing path of the seal assembly for air to flow from said exterior into the chamber. An impeller rotates with the shaft and located radially inward of the gap relative to the rotation axis, the impeller oriented to drive oil toward the bearing.Type: ApplicationFiled: August 21, 2020Publication date: February 24, 2022Inventors: Stuart HODGSON, Felipe PEREZ, Daniel POIRIER, Nadim Antoine NAJJAR
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Patent number: 10851664Abstract: A controlled gap radial oil sealing assembly in a gas turbine engine having a centre rotational axis defining an axial direction, the controlled gap radial sealing assembly comprises a seal element located around a cooperating seal runner and sized to define a controlled sealing gap between them, the seal runner having an axial length extending beyond an axial width of the seal element into an oiled region of the engine. A first annular surface radially outwardly spaced from and extending substantially along the axial length of the seal runner, the first annular surface sealingly cooperating with a seal housing of the seal element, and a second annular surface axially extending to overlap at least a portion of the first annular surface, the second annular surface radially outwardly spaced from the first annular surface relative to the center axis.Type: GrantFiled: August 2, 2018Date of Patent: December 1, 2020Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Michel Labbe, Stuart Hodgson, Daniel Poirier
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Publication number: 20200040754Abstract: A controlled gap radial oil sealing assembly in a gas turbine engine having a centre rotational axis defining an axial direction, the controlled gap radial sealing assembly comprises a seal element located around a cooperating seal runner and sized to define a controlled sealing gap between them, the seal runner having an axial length extending beyond an axial width of the seal element into an oiled region of the engine. A first annular surface radially outwardly spaced from and extending substantially along the axial length of the seal runner, the first annular surface sealingly cooperating with a seal housing of the seal element, and a second annular surface axially extending to overlap at least a portion of the first annular surface, the second annular surface radially outwardly spaced from the first annular surface relative to the center axis.Type: ApplicationFiled: August 2, 2018Publication date: February 6, 2020Inventors: Michel LABBE, Stuart HODGSON, Daniel POIRIER
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Patent number: 9594792Abstract: A method, data structure and computer program are provided. A file is stored in a first memory. A duplicate of at least a part of the file is stored in the first memory. A processor is reset based on the duplicate of at least a part of the file.Type: GrantFiled: September 25, 2014Date of Patent: March 14, 2017Assignee: STMicroelectronics (Research & Development) LimitedInventors: Stuart Hodgson, Peter Stieglitz
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Publication number: 20150095701Abstract: A method, data structure and computer program are provided. A file is stored in a first memory. A duplicate of at least a part of the file is stored in the first memory. A processor is reset based on the duplicate of at least a part of the file.Type: ApplicationFiled: September 25, 2014Publication date: April 2, 2015Inventors: Stuart Hodgson, Peter Stieglitz
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Patent number: 8180861Abstract: A system and a method (100, 500) for integrating an uncertified client (104) with a certified host device (102) are provided. The integration system (100) is configured to integrate the uncertified client (104), which has a plurality of client applications (106), with the certified host device (102), and has a client virtual machine (108), host applications (142), and an abstraction layer (138, 156). The client virtual machine (108) is coupled to the uncertified client (104) and is configured to execute the plurality of client applications (106). The host applications (142) are coupled to the certified host device (102) and are configured to control host dependent features on the certified host device (102). The abstraction layer (138, 156) are coupled to the host applications (142) and to the client virtual machine (108), and are configured to translate feature calls from the plurality of client applications (106) to function calls for the host applications (142).Type: GrantFiled: April 11, 2005Date of Patent: May 15, 2012Assignee: Research In Motion LimitedInventors: John Stuart Hodgson, Matthew Bells, Thomas Leonard Trevor Plestid, Edward Snow Willis, II, Sean Elliott Wilson, David Paul Yach
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Patent number: 7536718Abstract: A system and method for allowing a licensee having mobile station hardware to support its own set of carriers and software demands of these carriers, the software including licensor software, the method comprising the steps of: assigning a unique third party identifier to the licensee; assigning a range of carrier identifiers for the licensee; allowing the licensee to create a unique identifier by combining the unique third party identifier with an identifier chosen from the range of carrier identifiers; and associating, in a gateway program, the unique identifier with one or more software versions acceptable by a carrier for download onto the mobile station hardware.Type: GrantFiled: June 19, 2008Date of Patent: May 19, 2009Assignee: Research in Motion LimitedInventors: Nicholas Bryson Wilson, John Stuart Hodgson, Paul Edward Landry
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Publication number: 20080271136Abstract: A system and method for allowing a licensee having mobile station hardware to support its own set of carriers and software demands of these carriers, the software including licensor software, the method comprising the steps of: assigning a unique third party identifier to the licensee; assigning a range of carrier identifiers for the licensee; allowing the licensee to create a unique identifier by combining the unique third party identifier with an identifier chosen from the range of carrier identifiers; and associating, in a gateway program, the unique identifier with one or more software versions acceptable by a carrier for download onto the mobile station hardware.Type: ApplicationFiled: June 19, 2008Publication date: October 30, 2008Applicant: RESEARCH IN MOTION LIMITEDInventors: Nicholas Bryson Wilson, John Stuart Hodgson, Paul Edward Landry
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Patent number: 7412232Abstract: A system and method for allowing a licensee having mobile station hardware to support its own set of carriers and software demands of these carriers, the software including licensor software, the method comprising the steps of: assigning a unique third party identifier to the licensee; assigning a range of carrier identifiers for the licensee; allowing the licensee to create a unique identifier by combining the unique third party identifier with an identifier chosen from the range of carrier identifiers; and associating, in a gateway program, the unique identifier with one or more software versions acceptable by a carrier for download onto the mobile station hardware.Type: GrantFiled: December 22, 2004Date of Patent: August 12, 2008Assignee: Research In Motion LimitedInventors: Nicholas Bryson Wilson, John Stuart Hodgson, Paul Edward Landry