Patents by Inventor Nicholas D. Stilin
Nicholas D. Stilin 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: 11927113Abstract: A fan blade comprises interleaved plies, where interleaving comprises distributing wide plies within narrow plies and short plies within long plies in the fan blade; wherein the interleaving is defined as an actual intersection of a plurality of plies of different variable dimensions that extend in the chordwise direction with another plurality of plies of different variable dimensions that extend in the spanwise direction such that their respective longitudinal axes intersect with one another at angles of 5 to 175 degrees.Type: GrantFiled: August 5, 2022Date of Patent: March 12, 2024Assignee: RTX CORPORATIONInventors: Xuetao Li, Peter Finnigan, Nicholas D. Stilin
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Publication number: 20230051131Abstract: A fan blade comprises interleaved plies, where interleaving comprises distributing wide plies within narrow plies and short plies within long plies in the fan blade; wherein the interleaving is defined as an actual intersection of a plurality of plies of different variable dimensions that extend in the chordwise direction with another plurality of plies of different variable dimensions that extend in the spanwise direction such that their respective longitudinal axes intersect with one another at angles of 5 to 175 degrees.Type: ApplicationFiled: August 5, 2022Publication date: February 16, 2023Inventors: Xuetao Li, Peter Finnigan, Nicholas D. Stilin
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Patent number: 11466576Abstract: An airfoil for a gas turbine engine according to an example of the present disclosure includes, among other things, an airfoil section extending between a leading edge and a trailing edge in a chordwise direction and extending between a tip portion and a root section in a spanwise direction. The airfoil section defines pressure and suction sides separated in a thickness direction. A sheath extends in the spanwise direction along at least one of the pressure and suction sides of the airfoil section. A tip cap extends in the chordwise direction along the at least one of the pressure and suction sides. The sheath includes a first set of interface members. The tip cap includes a second set of interface members interleaved with the first set of interface members to establish at least one joint along an external surface of the at least one of the pressure and suction sides. A method of assembly for an airfoil is also disclosed.Type: GrantFiled: November 4, 2019Date of Patent: October 11, 2022Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventor: Nicholas D. Stilin
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Publication number: 20220307379Abstract: A coating membrane for a component of a gas-turbine engine includes a solid membrane having a metallic foil or a polymeric film, and having a thickness and at least one kerf extending through the thickness to define a kerf pattern such that the solid membrane can be applied to a compound-curved surface. Also disclosed are a coated component coated with the membrane, and a method for producing a coated component with the membrane.Type: ApplicationFiled: June 15, 2022Publication date: September 29, 2022Applicant: Raytheon Technologies CorporationInventor: Nicholas D. Stilin
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Patent number: 11408291Abstract: A coating membrane for a component of a gas-turbine engine includes a solid membrane having a metallic foil or a polymeric film, and having a thickness and at least one kerf extending through the thickness to define a kerf pattern such that the solid membrane can be applied to a compound-curved surface. Also disclosed are a coated component coated with the membrane, and a method for producing a coated component with the membrane.Type: GrantFiled: July 27, 2018Date of Patent: August 9, 2022Assignee: Raytheon Technologies CorporationInventor: Nicholas D. Stilin
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Publication number: 20220136394Abstract: A metallic sheath for a composite fan blade includes a body comprising a leading edge portion configured to cover a leading edge of the blade; a top surface adjacent the leading edge; an extension portion proximate the top surface configured to cover a portion of a tip of the blade along an intermediate chord length; an encapsulation portion opposite the top surface configured to couple directly with the tip of the blade; a sheath suction side flank configured to overlap a suction side of the blade; a sheath pressure side flank opposite the suction side flank configured to overlap a pressure side of the blade; and an insulator coupled between the encapsulation portion and the tip of the blade.Type: ApplicationFiled: October 30, 2020Publication date: May 5, 2022Inventors: Nicholas D. Stilin, Darin S. Lussier
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Patent number: 11215054Abstract: An airfoil according to an example of the present disclosure includes, among other things, an airfoil section extending between a leading edge and a trailing edge in a chordwise direction and extending between a tip portion and a root section in a spanwise direction. The airfoil section defines pressure and suction sides separated in a thickness direction, and includes a sheath having first and second sheath portions extending along an airfoil body of the airfoil section. The first sheath portion includes a first interface portion, and the second sheath portion includes a second interface portion that cooperates with the first interface portion to establish a joint having a circuitous profile along an edge of the airfoil body. A method of assembly for an airfoil is also disclosed.Type: GrantFiled: October 30, 2019Date of Patent: January 4, 2022Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventor: Nicholas D. Stilin
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Patent number: 11154901Abstract: A mask includes a masking body including at least a first edge, a second edge, and a third edge, together defining at least part of a perimeter around a first surface and a second opposing surface. A standoff arrangement includes at least one projection extending from the first or second surface of the masking body. The at least one projection is connected to the first or second surface at a location inward from the at least one edge of the masking body, thereby defining a first overhanging portion of the masking body overhanging the at least one projection proximate to the at least one edge of the masking body.Type: GrantFiled: July 5, 2018Date of Patent: October 26, 2021Assignee: Raytheon Technologies CorporationInventor: Nicholas D. Stilin
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Patent number: 11035238Abstract: An airfoil includes an airfoil body that extends between a leading edge and a trailing edge, a suction side and a pressure side, and a first end and a second end, a fitting located at one of the first end or the second end, the fitting including a body portion, a fillet portion, and a neck portion joining the body portion and the neck portion, the neck portion including a shelf, a fastener through the airfoil body, and a shroud having a complementary shape to the shelf such that the shroud nests in the shelf.Type: GrantFiled: February 11, 2020Date of Patent: June 15, 2021Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Nicholas D. Stilin, Jeremy L. Fox
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Publication number: 20210131286Abstract: An airfoil according to an example of the present disclosure includes, among other things, an airfoil section extending between a leading edge and a trailing edge in a chordwise direction and extending between a tip portion and a root section in a spanwise direction. The airfoil section defines pressure and suction sides separated in a thickness direction, and includes a sheath having first and second sheath portions extending along an airfoil body of the airfoil section. The first sheath portion includes a first interface portion, and the second sheath portion includes a second interface portion that cooperates with the first interface portion to establish a joint having a circuitous profile along an edge of the airfoil body. A method of assembly for an airfoil is also disclosed.Type: ApplicationFiled: October 30, 2019Publication date: May 6, 2021Inventor: Nicholas D. Stilin
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Publication number: 20210131294Abstract: An airfoil for a gas turbine engine according to an example of the present disclosure includes, among other things, an airfoil section extending between a leading edge and a trailing edge in a chordwise direction and extending between a tip portion and a root section in a spanwise direction. The airfoil section defines pressure and suction sides separated in a thickness direction. A sheath extends in the spanwise direction along at least one of the pressure and suction sides of the airfoil section. A tip cap extends in the chordwise direction along the at least one of the pressure and suction sides. The sheath includes a first set of interface members. The tip cap includes a second set of interface members interleaved with the first set of interface members to establish at least one joint along an external surface of the at least one of the pressure and suction sides. A method of assembly for an airfoil is also disclosed.Type: ApplicationFiled: November 4, 2019Publication date: May 6, 2021Inventor: Nicholas D. Stilin
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Patent number: 10830062Abstract: A composite airfoil is disclosed. The composite airfoil includes a first ply having a first plurality of strips of fiber oriented at a first angle with respect to a longitudinal axis and a second plurality of strips of fiber oriented at a second angle with respect to the longitudinal axis at least a first subset of the first plurality of strips of fibers have fibers intersecting and oriented at an angle to the fibers in at least a second subset of the second plurality of strips of fibers within a ply boundary.Type: GrantFiled: March 20, 2018Date of Patent: November 10, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Bradley L. Paquin, Nicholas D Stilin
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Publication number: 20200232334Abstract: An airfoil includes an airfoil body that extends between a leading edge and a trailing edge, a suction side and a pressure side, and a first end and a second end, a fitting located at one of the first end or the second end, the fitting including a body portion, a fillet portion, and a neck portion joining the body portion and the neck portion, the neck portion including a shelf, a fastener through the airfoil body, and a shroud having a complementary shape to the shelf such that the shroud nests in the shelf.Type: ApplicationFiled: February 11, 2020Publication date: July 23, 2020Inventors: Nicholas D. Stilin, Jeremy L. Fox
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Publication number: 20200032660Abstract: A coating membrane for a component of a gas-turbine engine includes a solid membrane having a metallic foil or a polymeric film, and having a thickness and at least one kerf extending through the thickness to define a kerf pattern such that the solid membrane can be applied to a compound-curved surface. Also disclosed are a coated component coated with the membrane, and a method for producing a coated component with the membrane.Type: ApplicationFiled: July 27, 2018Publication date: January 30, 2020Applicant: United Technologies CorporationInventor: Nicholas D. Stilin
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Publication number: 20200009609Abstract: A mask includes a masking body including at least a first edge, a second edge, and a third edge, together defining at least part of a perimeter around a first surface and a second opposing surface. A standoff arrangement includes at least one projection extending from the first or second surface of the masking body. The at least one projection is connected to the first or second surface at a location inward from the at least one edge of the masking body, thereby defining a first overhanging portion of the masking body overhanging the at least one projection proximate to the at least one edge of the masking body.Type: ApplicationFiled: July 5, 2018Publication date: January 9, 2020Inventor: Nicholas D. Stilin
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Patent number: 10483659Abstract: A grounding clip for an organic matrix composite guide vane with a metallic sheath comprises the organic matrix composite guide vane includes a body having a leading edge and a trailing edge opposite the leading edge and a root end extending between the leading end edge and the trailing edge. The metallic sheath is attached proximate the leading edge and extends to the root end. A metallic attachment fitting has a receiver configured to receive the root end of the organic matrix composite guide vane for coupling the organic matrix composite guide vane to the metallic attachment fitting. The grounding clip is coupled to the sheath proximate the root end; wherein the grounding clip is electrically connected to the metallic attachment fitting and the metallic sheath.Type: GrantFiled: November 19, 2018Date of Patent: November 19, 2019Assignee: United Technologies CorporationInventors: David R. Lyders, Nicholas D. Stilin, Kevin M. Bell
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Publication number: 20190292921Abstract: A composite airfoil is disclosed. The composite airfoil includes a first ply having a first plurality of strips of fiber oriented at a first angle with respect to a longitudinal axis and a second plurality of strips of fiber oriented at a second angle with respect to the longitudinal axis at least a first subset of the first plurality of strips of fibers have fibers intersecting and oriented at an angle to the fibers in at least a second subset of the second plurality of strips of fibers within a ply boundary.Type: ApplicationFiled: March 20, 2018Publication date: September 26, 2019Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Bradley L. Paquin, Nicholas D. Stilin
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Patent number: 10167885Abstract: A mechanical joint is provided between a first component and a second component. The mechanical joint includes a flanged retainer and a fastener. The flanged retainer includes a base and a flange. The base includes a bore and a counterbore that extends longitudinally along a centerline into the base from a longitudinal end of the base to the bore. The flange extends radially out from and circumferentially about the base at the longitudinal end of the base. The flange longitudinally engages the first component and the base projects longitudinally through the aperture and longitudinally engages the second component. The fastener includes an anchor and a shaft. The anchor is seated within the counterbore. The shaft projects longitudinally from the anchor, through the bore, and at least to the second component.Type: GrantFiled: March 21, 2016Date of Patent: January 1, 2019Assignee: United Technologies CorporationInventor: Nicholas D. Stilin
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Publication number: 20170268546Abstract: A mechanical joint is provided between a first component and a second component. The mechanical joint includes a flanged retainer and a fastener. The flanged retainer includes a base and a flange. The base includes a bore and a counterbore that extends longitudinally along a centerline into the base from a longitudinal end of the base to the bore. The flange extends radially out from and circumferentially about the base at the longitudinal end of the base. The flange longitudinally engages the first component and the base projects longitudinally through the aperture and longitudinally engages the second component. The fastener includes an anchor and a shaft. The anchor is seated within the counterbore. The shaft projects longitudinally from the anchor, through the bore, and at least to the second component.Type: ApplicationFiled: March 21, 2016Publication date: September 21, 2017Inventor: Nicholas D. Stilin
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Publication number: 20150218957Abstract: A seal for use with a static guide vane of a gas turbine engine has a strap member extending to a generally cylindrical bulb. The bulb forms a diameter, and is spaced a distance defined between an end of the strap remote from the bulb, to a point on the bulb furthest from the end. A ratio of the diameter to the distance is between 0.2 and 0.5. A static guide vane and a gas turbine engine are also disclosed.Type: ApplicationFiled: March 1, 2013Publication date: August 6, 2015Inventors: Carl Brian Klinetob, Nicholas D. Stilin