Patents by Inventor Daniel Feinstein
Daniel Feinstein 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: 11795841Abstract: A system includes an air chamber and an oil capture cavity. The air chamber includes an inlet to receive pressurized air from a gas turbine engine. The oil capture cavity is positioned between the air chamber and an oil sump supplying lubricating oil to the gas turbine engine. The oil capture cavity includes an auxiliary vent formed in a base of the oil capture cavity. A seal may separate the oil capture cavity from fluid communication with the oil sump. A nozzle provides fluid communication between the oil capture cavity and the air chamber. The nozzle is configured and positioned to direct a stream of the pressurized air into the oil capture cavity against an opposite wall of the oil capture cavity to create a quiescent zone at the base of the oil capture cavity. The quiescent zone includes the auxiliary vent.Type: GrantFiled: April 18, 2022Date of Patent: October 24, 2023Assignee: ROLLS-ROYCE CORPORATIONInventors: Joseph Black, Joseph A. Swift, Daniel Feinstein, Jared Isamu Taketa
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Patent number: 11591968Abstract: A method for shimming a thrust bearing for an accessory power take off shaft to obtain optimal meshing of bevel gears within the internal gearbox (IGB) without disassembly of the IGB is enabled by relocating the thrust bearing from the engine sump. The accessory gearbox (AGB) is driven from a power off-take from the turbine spool via the IGB. The radial position of the power take-off bevel gear is established by a radial position of the thrust bearing attached to the exterior of the casing via a housing. Candidate shims are selected from a set each having different thicknesses, the shims are formed of two halves and placed between the housing and the engine casing to adjust the radial position of the thrust bearing and consequently the power take-off bevel gear, without requiring the disassembly of the IGB.Type: GrantFiled: February 2, 2022Date of Patent: February 28, 2023Assignee: ROLLS-ROYCE CORPORATIONInventors: Timothy David Sheridan, Joseph Swift, Daniel Feinstein, Caleb Camara
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Publication number: 20220403756Abstract: A system includes an air chamber and an oil capture cavity. The air chamber includes an inlet to receive pressurized air from a gas turbine engine. The oil capture cavity is positioned between the air chamber and an oil sump supplying lubricating oil to the gas turbine engine. The oil capture cavity includes an auxiliary vent formed in a base of the oil capture cavity. A seal may separate the oil capture cavity from fluid communication with the oil sump. A nozzle provides fluid communication between the oil capture cavity and the air chamber. The nozzle is configured and positioned to direct a stream of the pressurized air into the oil capture cavity against an opposite wall of the oil capture cavity to create a quiescent zone at the base of the oil capture cavity. The quiescent zone includes the auxiliary vent.Type: ApplicationFiled: April 18, 2022Publication date: December 22, 2022Applicant: Rolls-Royce CorporationInventors: Joseph Black, Joseph A. Swift, Daniel Feinstein, Jared Isamu Taketa
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Patent number: 11459910Abstract: A strut may include an outer tube including an outer tube first end, an outer tube second end, and a longitudinal axis extending from the outer tube first end to the outer tube second end. The outer tube may define an interior. The strut also may include an additively manufactured inner tube at least partially within the interior of the outer tube of the strut. The additively manufactured inner tube defines an additively manufactured inner tube first end and an additively manufactured inner tube second end. The additively manufactured inner tube first end is integrally joined to the outer tube proximate to the outer tube first end.Type: GrantFiled: October 19, 2020Date of Patent: October 4, 2022Assignee: Rolls-Royce CorporationInventors: Daniel Feinstein, Joseph Swift, Caleb Camara, Jared Taketa
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Patent number: 11415225Abstract: A seal assembly is disclosed for sealing a higher pressure fluid cavity from a lower pressure fluid cavity. The seal assembly comprises a runner mounting assembly, a circumferential ceramic runner carried by the runner mount assembly, and a carbon seal ring sealingly engaged to the runner. The runner mount assembly comprises an annular central junction portion radially spaced from the shaft, a pair of shaft engaging flanges, and a pair of runner engaging flanges. The runner is radially positioned between the runner engaging flanges of the runner mount assembly and the carbon seal ring.Type: GrantFiled: May 22, 2019Date of Patent: August 16, 2022Assignee: Rolls-Royce CorporationInventors: Joseph Swift, Daniel Feinstein, Caleb Camara
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Publication number: 20220154650Abstract: A method for shimming a thrust bearing for an accessory power take off shaft to obtain optimal meshing of bevel gears within the internal gearbox (IGB) without disassembly of the IGB is enabled by relocating the thrust bearing from the engine sump. The accessory gearbox (AGB) is driven from a power off-take from the turbine spool via the IGB. The radial position of the power take-off bevel gear is established by a radial position of the thrust bearing attached to the exterior of the casing via a housing. Candidate shims are selected from a set each having different thicknesses, the shims are formed of two halves and placed between the housing and the engine casing to adjust the radial position of the thrust bearing and consequently the power take-off bevel gear, without requiring the disassembly of the IGB.Type: ApplicationFiled: February 2, 2022Publication date: May 19, 2022Applicant: Rolls-Royce CorporationInventors: Timothy David Sheridan, Joseph Swift, Daniel Feinstein, Caleb Camara
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Publication number: 20220120192Abstract: A strut may include an outer tube including an outer tube first end, an outer tube second end, and a longitudinal axis extending from the outer tube first end to the outer tube second end. The outer tube may define an interior. The strut also may include an additively manufactured inner tube at least partially within the interior of the outer tube of the strut. The additively manufactured inner tube defines an additively manufactured inner tube first end and an additively manufactured inner tube second end. The additively manufactured inner tube first end is integrally joined to the outer tube proximate to the outer tube first end.Type: ApplicationFiled: October 19, 2020Publication date: April 21, 2022Inventors: Daniel Feinstein, Joseph Swift, Caleb Camara, Jared Taketa
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Patent number: 11306614Abstract: A system includes an air chamber and an oil capture cavity. The air chamber includes an inlet to receive pressurized air from a gas turbine engine. The oil capture cavity is positioned between the air chamber and an oil sump supplying lubricating oil to the gas turbine engine. The oil capture cavity includes an auxiliary vent formed in a base of the oil capture cavity. A seal may separate the oil capture cavity from fluid communication with the oil sump. A nozzle provides fluid communication between the oil capture cavity and the air chamber. The nozzle is configured and positioned to direct a stream of the pressurized air into the oil capture cavity against an opposite wall of the oil capture cavity to create a quiescent zone at the base of the oil capture cavity. The quiescent zone includes the auxiliary vent.Type: GrantFiled: October 4, 2018Date of Patent: April 19, 2022Assignee: ROLLS-ROYCE CORPORATIONInventors: Joseph Black, Joseph A. Swift, Daniel Feinstein, Jared Isamu Taketa
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Patent number: 11274605Abstract: A method for shimming a thrust bearing for an accessory power take off shaft to obtain optimal meshing of bevel gears within the internal gearbox (IGB) without disassembly of the IGB is enabled by relocating the thrust bearing from the engine sump. The accessory gearbox (AGB) is driven from a power off-take from the turbine spool via the IGB. The radial position of the power take-off bevel gear is established by a radial position of the thrust bearing attached to the exterior of the casing via a housing. Candidate shims are selected from a set each having different thicknesses, the shims are formed of two halves and placed between the housing and the engine casing to adjust the radial position of the thrust bearing and consequently the power take-off bevel gear, without requiring the disassembly of the IGB.Type: GrantFiled: August 30, 2019Date of Patent: March 15, 2022Assignee: ROLLS-ROYCE CORPORATIONInventors: Timothy David Sheridan, Joseph Swift, Daniel Feinstein, Caleb Camara
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Patent number: 11085540Abstract: Systems and methods are disclosed for sealing a high pressure fluid cavity from a low pressure fluid cavity in a rotating machine such as a gas turbine engine. The cavities are at least partially disposed between a rotatable shaft and a sump housing radially displaced from the rotatable shaft. A seal assembly comprises an air riding carbon seal ring and a circumferential ceramic runner. The carbon seal ring is sealingly engaged with the sump housing and has a radially inward facing seal surface. The circumferential ceramic runner is carried by the shaft and has a radially outward facing seal surface extending axially along the shaft. The radially inward facing seal surface of the air riding carbon seal ring sealingly engages the radially outward facing seal surface of the ceramic runner during rotation of the rotatable shaft at a predetermined range of rotational speeds.Type: GrantFiled: November 30, 2018Date of Patent: August 10, 2021Assignee: Rolls-Royce CorporationInventors: Daniel Lawrence Fadgen, Jared Isamu Taketa, Joseph A. Swift, Daniel Feinstein
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Patent number: 11054039Abstract: A machine can include a radially inner component, a radially outer component, and a circumferential seal assembly between the inner and outer components. At least one (e.g., both) of the inner and outer components can be a rotor. The circumferential seal assembly can include a circumferential metallic mount, a circumferential ceramic runner, a circumferential carbon seal, and one or more spring energized seals. The spring energized seals can prevent rotational slippage between the metallic mount and the ceramic runner. The spring energized seals can be necessary to prevent rotational slippage between the metallic mount and the ceramic runner for at least one standard operating state of the machine.Type: GrantFiled: August 31, 2018Date of Patent: July 6, 2021Assignee: Rolls-Royce CorporationInventors: Daniel Feinstein, Joseph Swift
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Patent number: 11022174Abstract: An oil scavenge system of a rotatable machine having an axis of rotation is disclosed. The oil scavenge system comprises a sump housing, a scavenge conduit, a bearing, and a squeeze film damper. The sump housing is arranged about the axis and at least partly defining a sump. The sump housing has a radially inner surface for directing the flow of oil and defining a collection orifice. The scavenge conduit is in fluid communication with the collection orifice and a downstream location remote from the sump. The bearing is disposed within the sump. The squeeze film damper is positioned proximate the bearing. The squeeze film damper comprises an annular channel and a supply line. The supply line supplies oil to the annular channel. The squeeze film damper further comprises a discharge line. The discharge line is axially aligned with and discharges toward an inner wall of the scavenge conduit.Type: GrantFiled: September 28, 2018Date of Patent: June 1, 2021Assignee: Rolls-Royce CorporationInventors: Kerry Lighty, David Farnum, Daniel Feinstein, Joseph Swift
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Publication number: 20210062722Abstract: A method for shimming a thrust bearing for an accessory power take off shaft to obtain optimal meshing of bevel gears within the internal gearbox (IGB) without disassembly of the IGB is enabled by relocating the thrust bearing from the engine sump. The accessory gearbox (AGB) is driven from a power off-take from the turbine spool via the IGB. The radial position of the power take-off bevel gear is established by a radial position of the thrust bearing attached to the exterior of the casing via a housing. Candidate shims are selected from a set each having different thicknesses, the shims are formed of two halves and placed between the housing and the engine casing to adjust the radial position of the thrust bearing and consequently the power take-off bevel gear, without requiring the disassembly of the IGB.Type: ApplicationFiled: August 30, 2019Publication date: March 4, 2021Applicant: Rolls-Royce CorporationInventors: Timothy David Sheridan, Joseph Swift, Daniel Feinstein, Caleb Camara
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Publication number: 20200370651Abstract: A seal assembly is disclosed for sealing a higher pressure fluid cavity from a lower pressure fluid cavity. The seal assembly comprises a runner mounting assembly, a circumferential ceramic runner carried by the runner mount assembly, and a carbon seal ring sealingly engaged to the runner. The runner mount assembly comprises an annular central junction portion radially spaced from the shaft, a pair of shaft engaging flanges, and a pair of runner engaging flanges. The runner is radially positioned between the runner engaging flanges of the runner mount assembly and the carbon seal ring.Type: ApplicationFiled: May 22, 2019Publication date: November 26, 2020Applicant: Rolls-Royce CorporationInventors: Joseph Swift, Daniel Feinstein, Caleb Camara
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Publication number: 20200173556Abstract: Systems and methods are disclosed for sealing a high pressure fluid cavity from a low pressure fluid cavity in a rotating machine such as a gas turbine engine. The cavities are at least partially disposed between a rotatable shaft and a sump housing radially displaced from the rotatable shaft. A seal assembly comprises an air riding carbon seal ring and a circumferential ceramic runner. The carbon seal ring is sealingly engaged with the sump housing and has a radially inward facing seal surface. The circumferential ceramic runner is carried by the shaft and has a radially outward facing seal surface extending axially along the shaft. The radially inward facing seal surface of the air riding carbon seal ring sealingly engages the radially outward facing seal surface of the ceramic runner during rotation of the rotatable shaft at a predetermined range of rotational speeds.Type: ApplicationFiled: November 30, 2018Publication date: June 4, 2020Applicant: Rolls-Royce CorporationInventors: Daniel Lawrence Fadgen, Jared Isamu Taketa, Joseph A. Swift, Daniel Feinstein
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Publication number: 20200109646Abstract: A system includes an air chamber and an oil capture cavity. The air chamber includes an inlet to receive pressurized air from a gas turbine engine. The oil capture cavity is positioned between the air chamber and an oil sump supplying lubricating oil to the gas turbine engine. The oil capture cavity includes an auxiliary vent formed in a base of the oil capture cavity. A seal may separate the oil capture cavity from fluid communication with the oil sump. A nozzle provides fluid communication between the oil capture cavity and the air chamber. The nozzle is configured and positioned to direct a stream of the pressurized air into the oil capture cavity against an opposite wall of the oil capture cavity to create a quiescent zone at the base of the oil capture cavity. The quiescent zone includes the auxiliary vent.Type: ApplicationFiled: October 4, 2018Publication date: April 9, 2020Applicant: Rolls-Royce CorporationInventors: Joseph Black, Joseph A. Swift, Daniel Feinstein, Jared Isamu Taketa
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Publication number: 20200102986Abstract: An oil scavenge system of a rotatable machine having an axis of rotation is disclosed. The oil scavenge system comprises a sump housing, a scavenge conduit, a bearing, and a squeeze film damper. The sump housing is arranged about the axis and at least partly defining a sump. The sump housing has a radially inner surface for directing the flow of oil and defining a collection orifice. The scavenge conduit is in fluid communication with the collection orifice and a downstream location remote from the sump. The bearing is disposed within the sump. The squeeze film damper is positioned proximate the bearing. The squeeze film damper comprises an annular channel and a supply line. The supply line supplies oil to the annular channel. The squeeze film damper further comprises a discharge line. The discharge line is axially aligned with and discharges toward an inner wall of the scavenge conduit.Type: ApplicationFiled: September 28, 2018Publication date: April 2, 2020Applicant: Rolls-Royce CorporationInventors: Kerry Lighty, David Farnum, Daniel Feinstein, Joseph Swift
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Publication number: 20200072358Abstract: A machine can include a radially inner component, a radially outer component, and a circumferential seal assembly between the inner and outer components. At least one (e.g., both) of the inner and outer components can be a rotor. The circumferential seal assembly can include a circumferential metallic mount, a circumferential ceramic runner, a circumferential carbon seal, and one or more spring energized seals. The spring energized seals can prevent rotational slippage between the metallic mount and the ceramic runner. The spring energized seals can be necessary to prevent rotational slippage between the metallic mount and the ceramic runner for at least one standard operating state of the machine.Type: ApplicationFiled: August 31, 2018Publication date: March 5, 2020Applicant: Rolls-Royce CorporationInventors: Daniel Feinstein, Joseph Swift
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Publication number: 20080250669Abstract: A membrane designed to surround the front portion of the foot and protect it from pressure that may be applied by shoes. The membrane acts as a protective barrier between the shoe and the wearer's foot. As a result, direct abrasion of the foot caused by portions of the shoe is reduced. Additionally, the membrane is designed to spread the pressure exerted by portions of the shoe, such as straps, to a significantly larger surface area of the wearer's foot. The membrane is worn on the front portion of the foot between the toes and the heel.Type: ApplicationFiled: April 14, 2008Publication date: October 16, 2008Inventors: Michele Laurie Hallivis, Craig B. Berky, Steven Daniel Feinstein, Gina Reimann