Patents by Inventor Sean McCutchan
Sean McCutchan 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: 11788628Abstract: A face seal assembly includes a seal carrier, a seal element supported by the seal carrier, a rotating seal plate interactive with the seal element to define a face seal, and a seal arrester configured to engage the seal carrier at a predetermined amount of wear of the seal element to stop wear of the seal element.Type: GrantFiled: September 26, 2022Date of Patent: October 17, 2023Assignee: RTX CorporationInventors: Andrew V. Schwendenmann, Armando Amador, Joseph B. Phelps, Sean McCutchan
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Publication number: 20230016992Abstract: A face seal assembly includes a seal carrier, a seal element supported by the seal carrier, a rotating seal plate interactive with the seal element to define a face seal, and a seal arrester configured to engage the seal carrier at a predetermined amount of wear of the seal element to stop wear of the seal element.Type: ApplicationFiled: September 26, 2022Publication date: January 19, 2023Inventors: Andrew V. Schwendenmann, Armando Amador, Joseph B. Phelps, Sean McCutchan
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Patent number: 11454324Abstract: A face seal assembly includes a seal carrier, a seal element supported by the seal carrier, a rotating seal plate interactive with the seal element to define a face seal, and a seal arrester configured to engage the seal carrier at a predetermined amount of wear of the seal element to stop wear of the seal element.Type: GrantFiled: August 26, 2020Date of Patent: September 27, 2022Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Andrew V. Schwendenmann, Armando Amador, Joseph B. Phelps, Sean McCutchan
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Publication number: 20220065121Abstract: A face seal assembly includes a seal carrier, a seal element supported by the seal carrier, a rotating seal plate interactive with the seal element to define a face seal, and a seal arrester configured to engage the seal carrier at a predetermined amount of wear of the seal element to stop wear of the seal element.Type: ApplicationFiled: August 26, 2020Publication date: March 3, 2022Inventors: Andrew V. Schwendenmann, Armando Amador, Joseph B. Phelps, Sean McCutchan
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Patent number: 10221735Abstract: A method of real-time oil consumption is disclosed. A method of real-time oil consumption detection may include capturing a raw oil quantity, calculating a corrected oil quantity, calculating a predicted oil quantity, calculating a prediction error, and calculating an estimated oil consumption rate. Raw oil quantity may be captured from an oil quantity sensor in an engine. Corrected oil quantity may be calculated by taking raw oil quantity and applying environmental and engine operational conditions. Prediction error may be calculated by finding the difference between corrected oil quantity and predicted oil quantity. Oil consumption rate may be calculated by applying a regression algorithm to prediction error.Type: GrantFiled: November 30, 2015Date of Patent: March 5, 2019Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Steven Butler, Sean McCutchan, Reade James, Denman James
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Patent number: 9732394Abstract: A method of treating bearing rolling elements or bearing rings after a hardening and temper heat treatment is disclosed. The method may include treating the bearing rolling elements in a tumbling treatment and then in a duplex hardening treatment. The method may include treating the bearing rings in a peening treatment and then in a duplex hardening treatment. The duplex hardening treatment may also include at least one sequential process segment consisting of subjecting the bearing rolling element & rings to a nitriding process to increase the surface hardness and compressive residual stress. The combined two-step process produces a deep surface/sub-surface residual stress greater than the depth of the maximum operating von-Mises shear stress along with an ultra-hard surface with high magnitude of compressive residual stress. In so doing, the bearing ring and rolling elements will have significantly enhanced rolling contact fatigue resistance and resistance to surface imperfections and debris.Type: GrantFiled: May 17, 2012Date of Patent: August 15, 2017Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Herbert A. Chin, William P. Ogden, David A. Haluck, Sean McCutchan, Ronald F. Spitzer, Allen V. Keller
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Patent number: 9695870Abstract: A centering spring assembly of a turbomachine according to an exemplary aspect of the present disclosure includes, among other things, a damper beam, a bearing support, and a spanner nut. At least a portion of the damper beam axially overlaps at least a portion of the spanner nut relative to a rotational axis of the turbomachine.Type: GrantFiled: January 18, 2013Date of Patent: July 4, 2017Assignee: United Technologies CorporationInventors: Armando Amador, Sean McCutchan
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Publication number: 20170152776Abstract: A method of real-time oil consumption is disclosed. A method of real-time oil consumption detection may comprise capturing a raw oil quantity, calculating a corrected oil quantity, calculating a predicted oil quantity, calculating a prediction error, and calculating an estimated oil consumption rate. Raw oil quantity may be captured from an oil quantity sensor in an engine. Corrected oil quantity may be calculated by taking raw oil quantity and applying environmental and engine operational conditions. Prediction error may be calculated by finding the difference between corrected oil quantity and predicted oil quantity. Oil consumption rate may be calculated by applying a regression algorithm to prediction error.Type: ApplicationFiled: November 30, 2015Publication date: June 1, 2017Applicant: United Technologies CorporationInventors: Steven Butler, Sean McCutchan, Reade James, Denman James
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Publication number: 20150240867Abstract: A centering spring assembly of a turbomachine according to an exemplary aspect of the present disclosure includes, among other things, a damper beam, a bearing support, and a spanner nut. At least a portion of the damper beam axially overlaps at least a portion of the spanner nut relative to a rotational axis of the turbomachine.Type: ApplicationFiled: January 18, 2013Publication date: August 27, 2015Inventors: Armando Amador, Sean McCutchan
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Publication number: 20130306194Abstract: A method of treating bearing rolling elements or bearing rings after a hardening and temper heat treatment is disclosed. The method may include treating the bearing rolling elements in a tumbling treatment and then in a duplex hardening treatment. The method may include treating the bearing rings in a peening treatment and then in a duplex hardening treatment. The duplex hardening treatment may also include at least one sequential process segment consisting of subjecting the bearing rolling element & rings to a nitriding process to increase the surface hardness and compressive residual stress. The combined two-step process produces a deep surface/sub-surface residual stress greater than the depth of the maximum operating von-Mises shear stress along with an ultra-hard surface with high magnitude of compressive residual stress. In so doing, the bearing ring and rolling elements will have significantly enhanced rolling contact fatigue resistance and resistance to surface imperfections and debris.Type: ApplicationFiled: May 17, 2012Publication date: November 21, 2013Inventors: Herbert A. Chin, William P. Ogden, David A. Haluck, Sean McCutchan, Ronald F. Spitzer, Allen V. Keller
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Patent number: 8529135Abstract: An angular contact ball bearing, and a method for lubricating the same, has multiple ball pockets connected to an annulus channel via at least one hole that allows a fluid to flow from the annulus channel to the ball pockets.Type: GrantFiled: August 25, 2011Date of Patent: September 10, 2013Assignee: United Technologies CorporationInventors: Kevin Duffy, Sean McCutchan
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Publication number: 20130051717Abstract: An angular contact ball bearing, and a method for lubricating the same, has multiple ball pockets connected to an annulus channel via at least one hole that allows a fluid to flow from the annulus channel to the ball pockets.Type: ApplicationFiled: August 25, 2011Publication date: February 28, 2013Inventors: Kevin Duffy, Sean McCutchan
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Patent number: 8065867Abstract: A bearing assembly includes an outer race and an inner race with a ball bearing element located between the inner and the outer races. The inner race has a first portion and a second portion separated from the first portion by a split. The first portion includes a first curved inner race support surface defined by a first center point and the second portion includes a second curved inner race support surface defined by a second center point that is non-coincident with the first center point.Type: GrantFiled: June 20, 2008Date of Patent: November 29, 2011Assignee: United Technologies CorporationInventor: Sean McCutchan
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Publication number: 20090313965Abstract: A bearing assembly includes an outer race and an inner race with a ball bearing element located between the inner and the outer races. The inner race has a first portion and a second portion separated from the first portion by a split. The first portion includes a first curved inner race support surface defined by a first center point and the second portion includes a second curved inner race support surface defined by a second center point that is non-coincident with the first center point.Type: ApplicationFiled: June 20, 2008Publication date: December 24, 2009Inventor: Sean McCutchan
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Patent number: 7159873Abstract: The present invention relates to a seal assembly for use in a rotary machine. The seal assembly comprises a first member and a seal carrier mounted to the first member by a mounting member, a second member spaced from the first member and a seal running member positioned on a second member, and a hydraulic seal for preventing gas leakage from a high pressure source to a low pressure compartment through the mounting member.Type: GrantFiled: December 8, 2004Date of Patent: January 9, 2007Assignee: United Technologies CorporationInventor: Sean McCutchan
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Publication number: 20050217272Abstract: A deoiler 26 for separating oil from air contaminated with the oil has at least one separator for separating the oil from the air and also has a source of suction for reducing air pressure at the source of the air. In an exemplary embodiment, the deoiler 26 creates the suction at a first operating condition, but acts as a restrictor at a second operating condition. A deoiling method according to the invention creates suction at a first operating condition to reduce the air pressure at the source of the oil-contaminated air, establishes a flow restriction at a second operating condition to pressurize the air source, and encourages oil to separate from the air at both operating conditions. When used as a component of a turbine engine lubrication system 22, the source of contaminated air may be a buffered bearing compartment 16.Type: ApplicationFiled: March 31, 2004Publication date: October 6, 2005Inventors: William Sheridan, J. Glahn, James Thoresen, Larry Spires, Yuan Dong, Sean McCutchan
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Publication number: 20050098956Abstract: The present invention relates to a seal assembly for use in a rotary machine. The seal assembly comprises a first member and a seal carrier mounted to the first member by a mounting member, a second member spaced from the first member and a seal running member positioned on a second member, and a hydraulic seal for preventing gas leakage from a high pressure source to a low pressure compartment through the mounting member.Type: ApplicationFiled: December 8, 2004Publication date: May 12, 2005Inventor: Sean McCutchan
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Patent number: 6860483Abstract: The present invention relates to a seal system for use in rotary machines. The seal system includes a first member and a second member forming an annulus, a high pressure region and a low pressure region in the annulus, and a liquid seal intermediate the first and second members and intermediate the high pressure region and the low pressure region for reducing gas leakage from the high pressure region to the low pressure region.Type: GrantFiled: September 10, 2002Date of Patent: March 1, 2005Assignee: United Technologies CorporationInventor: Sean McCutchan
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Patent number: 6845987Abstract: The present invention relates to a seal assembly for use in a rotary machine. The seal assembly comprises a first member and a seal carrier mounted to the first member by a mounting member, a second member spaced from the first member and a seal running member positioned on the second member, and a hydraulic seal for preventing gas leaking from a high pressure source to a low pressure compartment through the mounting member.Type: GrantFiled: September 10, 2002Date of Patent: January 25, 2005Assignee: United Technologies CorporationInventor: Sean McCutchan
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Publication number: 20040046323Abstract: The present invention relates to a seal system for use in rotary machines. The seal system includes a first member and a second member forming an annulus, a high pressure region and a low pressure region in the annulus, and a liquid seal intermediate the first and second members and intermediate the high pressure region and the low pressure region for reducing gas leakage from the high pressure region to the low pressure region.Type: ApplicationFiled: September 10, 2002Publication date: March 11, 2004Inventor: Sean McCutchan