Patents by Inventor Ryan Lehto
Ryan Lehto 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: 11655052Abstract: A system for regenerating fastener holes in a replacement tip section of a rotor blade includes a first fixture, a second fixture, and a third fixture positionable adjacent a tip section of the rotor blade. The first fixture is used to verify a position of an opening formed in the spar. The second fixture includes a removable bushing having a drillable opening. The drillable opening is aligned with the at least one opening formed in the spar and defines at least one hole to be formed in the replacement tip section. The third fixture includes a countersink opening. The countersink opening is aligned with the at least one hole to be formed in the replacement tip section and the at least one opening formed in the spar to define a countersink feature to be formed in the at least one hole.Type: GrantFiled: June 22, 2021Date of Patent: May 23, 2023Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Sven R. Lofstrom, Robert D. Higbie, Frank M. Caputo, Ryan Lehto, Timothy James Conti, Eric Charles Boyle
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Patent number: 11548103Abstract: A pressure tool for rotor blade repair including a mobile support system including a support surface, a first bladder support assembly including a first inflatable bladder fixedly mounted to the support surface, a second bladder support assembly including a second inflatable bladder pivotally mounted relative to the support surface, and an activation mechanism operatively coupled to the second bladder support assembly. The activation mechanism is operable to selectively shift the second bladder support assembly relative to the first bladder support assembly. A fluid delivery system is operable to direct a fluid into each of the first inflatable bladder and the second inflatable bladder.Type: GrantFiled: October 20, 2020Date of Patent: January 10, 2023Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Ryan Lehto, David W. Littlejohn, Sven R. Lofstrom
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Patent number: 11511499Abstract: A bond assembly includes a fixture having a first section movably coupled to a second section. The first section and the second section are disposed opposite one another. A bladder assembly is mounted to at least one of the first section and the second section. The bladder assembly is configured to apply controlled, localized pressure and heat to a component receivable between the first section and the second section.Type: GrantFiled: January 21, 2020Date of Patent: November 29, 2022Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Sven Roy Lofstrom, Ryan Lehto
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Publication number: 20210309390Abstract: A system for regenerating fastener holes in a replacement tip section of a rotor blade includes a first fixture, a second fixture, and a third fixture positionable adjacent a tip section of the rotor blade. The first fixture is used to verify a position of an opening formed in the spar. The second fixture includes a removable bushing having a drillable opening. The drillable opening is aligned with the at least one opening formed in the spar and defines at least one hole to be formed in the replacement tip section. The third fixture includes a countersink opening. The countersink opening is aligned with the at least one hole to be formed in the replacement tip section and the at least one opening formed in the spar to define a countersink feature to be formed in the at least one hole.Type: ApplicationFiled: June 22, 2021Publication date: October 7, 2021Applicant: Sikorsky Aircraft CorporationInventors: Sven R. Lofstrom, Robert D. Higbie, Frank M. Caputo, Ryan Lehto, Timothy James Conti, Eric Charles Boyle
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Patent number: 11091254Abstract: A rotor blade disassembly method includes applying spanwise support to a rotor blade body and heating a bond disposed on an end of the rotor blade body. The method also includes removing the spanwise support from the rotor blade body and exerting shear stress on the bond using weight of the rotor blade body. A blade disassembly system is also described.Type: GrantFiled: December 21, 2018Date of Patent: August 17, 2021Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Ryan Lehto, Eric C. Boyle, Sven R. Lofstrom, David Littlejohn
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Patent number: 11066188Abstract: A system for regenerating fastener holes in a replacement tip section of a rotor blade includes a first fixture, a second fixture, and a third fixture positionable adjacent a tip section of the rotor blade. The first fixture is used to verify a position of an opening formed in the spar. The second fixture includes a removable bushing having a drillable opening. The drillable opening is aligned with the at least one opening formed in the spar and defines at least one hole to be formed in the replacement tip section. The third fixture includes a countersink opening. The countersink opening is aligned with the at least one hole to be formed in the replacement tip section and the at least one opening formed in the spar to define a countersink feature to be formed in the at least one hole.Type: GrantFiled: August 10, 2018Date of Patent: July 20, 2021Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Sven R. Lofstrom, Robert D. Higbie, Frank M. Caputo, Ryan Lehto, Timothy James Conti, Eric Charles Boyle
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Publication number: 20210046591Abstract: A pressure tool for rotor blade repair including a mobile support system including a support surface, a first bladder support assembly including a first inflatable bladder fixedly mounted to the support surface, a second bladder support assembly including a second inflatable bladder pivotally mounted relative to the support surface, and an activation mechanism operatively coupled to the second bladder support assembly. The activation mechanism is operable to selectively shift the second bladder support assembly relative to the first bladder support assembly. A fluid delivery system is operable to direct a fluid into each of the first inflatable bladder and the second inflatable bladder.Type: ApplicationFiled: October 20, 2020Publication date: February 18, 2021Applicant: Sikorsky Aircraft CorporationInventors: Ryan Lehto, David W. Littlejohn, Sven R. Lofstrom
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Patent number: 10836001Abstract: A pressure tool for rotor blade repair including a mobile support system including a support surface, a first bladder support assembly including a first inflatable bladder fixedly mounted to the support surface, a second bladder support assembly including a second inflatable bladder pivotally mounted relative to the support surface, and an activation mechanism operatively coupled to the second bladder support assembly. The activation mechanism is operable to selectively shift the second bladder support assembly relative to the first bladder support assembly. A fluid delivery system is operable to direct a fluid into each of the first inflatable bladder and the second inflatable bladder.Type: GrantFiled: July 7, 2017Date of Patent: November 17, 2020Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Ryan Lehto, David W. Littlejohn, Sven R. Lofstrom
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Patent number: 10752344Abstract: A tool for removing a bushing from a workpiece includes a tool body, a first reference, and a second reference for positioning the tool body on a workpiece. A saw slot is defined through the tool body to provide access to the workpiece for a saw blade. A saw guide is proximate the saw slot, the saw guide arranged to position a saw blade in a cutting plane spaced apart from the workpiece for removing a segment of a bushing fixed to the workpiece relative to the first and second references.Type: GrantFiled: October 18, 2016Date of Patent: August 25, 2020Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Ryan Lehto, Sven Roy Lofstrom
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Patent number: 10730201Abstract: A tool for machining chamfers includes a tool body defining a first reference and a second reference configured for proper positioning of the tool body on a workpiece. A router port is defined through the tool body to provide access to the workpiece for a router. A router attachment proximate the router port is configured to position a router mounted to the router attachment for machining a chamfer in the workpiece with reference to the first and second references.Type: GrantFiled: October 3, 2016Date of Patent: August 4, 2020Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Sven R. Lofstrom, Ryan Lehto, Joshua Richards
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Publication number: 20200156331Abstract: A bond assembly includes a fixture having a first section movably coupled to a second section. The first section and the second section are disposed opposite one another. A bladder assembly is mounted to at least one of the first section and the second section. The bladder assembly is configured to apply controlled, localized pressure and heat to a component receivable between the first section and the second section.Type: ApplicationFiled: January 21, 2020Publication date: May 21, 2020Inventors: Sven Roy Lofstrom, Ryan Lehto
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Patent number: 10576699Abstract: A bond assembly includes a fixture having a first section movably coupled to a second section. The first section and the second section are disposed opposite one another. A bladder assembly is mounted to at least one of the first section and the second section. The bladder assembly is configured to apply controlled, localized pressure and heat to a component receivable between the first section and the second section.Type: GrantFiled: August 9, 2016Date of Patent: March 3, 2020Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Sven Roy Lofstrom, Ryan Lehto
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Publication number: 20200047919Abstract: A system for regenerating fastener holes in a replacement tip section of a rotor blade includes a first fixture, a second fixture, and a third fixture positionable adjacent a tip section of the rotor blade. The first fixture is used to verify a position of an opening formed in the spar. The second fixture includes a removable bushing having a drillable opening. The drillable opening is aligned with the at least one opening formed in the spar and defines at least one hole to be formed in the replacement tip section. The third fixture includes a countersink opening. The countersink opening is aligned with the at least one hole to be formed in the replacement tip section and the at least one opening formed in the spar to define a countersink feature to be formed in the at least one hole.Type: ApplicationFiled: August 10, 2018Publication date: February 13, 2020Inventors: Sven R. Lofstrom, Robert D. Higbie, Frank M. Caputo, Ryan Lehto, Timothy James Conti, Eric Charles Boyle
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Publication number: 20190135421Abstract: A rotor blade disassembly method includes applying spanwise support to a rotor blade body and heating a bond disposed on an end of the rotor blade body. The method also includes removing the spanwise support from the rotor blade body and exerting shear stress on the bond using weight of the rotor blade body. A blade disassembly system is also described.Type: ApplicationFiled: December 21, 2018Publication date: May 9, 2019Inventors: Ryan Lehto, Eric C. Boyle, Sven R. Lofstrom, David Littlejohn
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Patent number: 10196140Abstract: A rotor blade disassembly method includes applying spanwise support to a rotor blade body and heating a bond disposed on an end of the rotor blade body. The method also includes removing the spanwise support from the rotor blade body and exerting shear stress on the bond using weight of the rotor blade body. A blade disassembly system is also described.Type: GrantFiled: April 12, 2016Date of Patent: February 5, 2019Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Ryan Lehto, Eric C. Boyle, Sven R. Lofstrom, David Littlejohn
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Publication number: 20180305006Abstract: A pitch bearing assembly includes an inboard pitch bearing including an inner race and an outer race, the outer race including a radially outwardly protruding tab, and an outboard end of the inboard pitch bearing including a plurality of rotation transmitting features. An outboard pitch bearing of the pitch bearing assembly includes an inner race and an outer race, an inboard end of the outer race of the outboard pitch bearing including a plurality of rotation transmitting features. A coupler of the pitch bearing assembly has an inboard end and an outboard end, the inboard end of the coupler having a plurality of rotation transmitting features engageable with the rotation transmitting features of the inboard pitch bearing, the outboard end of the coupler having a plurality of rotation transmitting features engageable with the rotation transmitting features of the outboard pitch bearing.Type: ApplicationFiled: February 22, 2018Publication date: October 25, 2018Inventors: Ryan Lehto, Robert D Higbie, James Everett McCollough, Joshua R. Richards, Bryan Kenneth Baskin
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Publication number: 20180104751Abstract: A tool for removing a bushing from a workpiece includes a tool body, a first reference, and a second reference for positioning the tool body on a workpiece. A saw slot is defined through the tool body to provide access to the workpiece for a saw blade. A saw guide is proximate the saw slot, the saw guide arranged to position a saw blade in a cutting plane spaced apart from the workpiece for removing a segment of a bushing fixed to the workpiece relative to the first and second references.Type: ApplicationFiled: October 18, 2016Publication date: April 19, 2018Inventors: Ryan Lehto, Sven Roy Lofstrom
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Publication number: 20180093334Abstract: A tool for machining chamfers includes a tool body defining a first reference and a second reference configured for proper positioning of the tool body on a workpiece. A router port is defined through the tool body to provide access to the workpiece for a router. A router attachment proximate the router port is configured to position a router mounted to the router attachment for machining a chamfer in the workpiece with reference to the first and second references.Type: ApplicationFiled: October 3, 2016Publication date: April 5, 2018Inventors: Sven R. Lofstrom, Ryan Lehto, Joshua Richards
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Publication number: 20180043640Abstract: A bond assembly includes a fixture having a first section movably coupled to a second section. The first section and the second section are disposed opposite one another. A bladder assembly is mounted to at least one of the first section and the second section. The bladder assembly is configured to apply controlled, localized pressure and heat to a component receivable between the first section and the second section.Type: ApplicationFiled: August 9, 2016Publication date: February 15, 2018Inventors: Sven Roy Lofstrom, Ryan Lehto
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Publication number: 20180044006Abstract: A caul assembly includes a semi-rigid caul plate formed in a shape complementary to a portion of a component receivable therein and a heater located at an exterior surface of the semi-rigid caul plate. The heater is adapted to apply heat to a localized portion of the component.Type: ApplicationFiled: August 9, 2016Publication date: February 15, 2018Inventors: Ryan Lehto, Sven Roy Lofstrom