Patents by Inventor Glenn Gradischer
Glenn Gradischer 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: 11927272Abstract: A valve assembly includes a first sleeve defining a piston bore therein. A second sleeve defines a piston bore therein. The piston bore of the first sleeve and the piston bore of the second sleeve are axially aligned. A piston is slidingly engaged in the piston bores of the first and second sleeves. A seal carrier with a plurality of pieces is axially between the first sleeve and the second sleeve. The plurality of pieces of the multi-piece seal carrier are circumferentially spaced apart from one another.Type: GrantFiled: December 13, 2022Date of Patent: March 12, 2024Assignee: Hamilton Sundstrand CorporationInventors: August M. Coretto, Glenn Gradischer, Francis P. Marocchini, Peter M. Ballard, Scott J. Beloncik
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Publication number: 20230094139Abstract: A mount according to an example of the present disclosure includes a locating pin, a load pin, a fastener, the fastener configured to retain a component on at least one of the locating pin and the load pin, the fastener including a bolt, a mounting boss and a spring, the spring allowing the mounting boss to move with respect to the bolt, and wherein the bolt is held captive in the mounting boss with a captive feature. A gas turbine engine and a method of mounting a component are also disclosed.Type: ApplicationFiled: December 2, 2022Publication date: March 30, 2023Inventors: Aaron F. Rickis, Elise N. Zimmerman, Gary R. Marconi, Glenn Gradischer, August M. Coretto, Francis P. Marocchini
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Patent number: 11519299Abstract: A mount according to an example of the present disclosure includes a locating pin, a load pin, a fastener, the fastener configured to retain a component on at least one of the locating pin and the load pin, the fastener including a bolt, a mounting boss and a spring, the spring allowing the mounting boss to move with respect to the bolt, and wherein the bolt is held captive in the mounting boss with a captive feature. A gas turbine engine and a method of mounting a component are also disclosed.Type: GrantFiled: December 22, 2017Date of Patent: December 6, 2022Assignee: Hamilton Sundstrand CorporationInventors: Aaron F. Rickis, Elise N. Zimmerman, Gary R. Marconi, Glenn Gradischer, August M. Coretto, Francis P. Marocchini
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Patent number: 11486313Abstract: A valve assembly for a turbine engine includes a valve arranged in an air flow path. The valve has a shaft. The valve is movable between an open position and a closed position. An electric actuator is coupled to the shaft and is configured to move the valve between the open position and the closed position. A thermal barrier is arranged between the valve and the electric actuator.Type: GrantFiled: June 14, 2019Date of Patent: November 1, 2022Assignee: Hamilton Sundstrand CorporationInventors: Francis P. Marocchini, Aaron F. Rickis, August M. Coretto, Gary R. Marconi, Scott W. Simpson, Glenn Gradischer, William E. Rhoden
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Patent number: 11448139Abstract: A valve assembly for a turbine engine includes a valve arranged in an air flow path. The valve has a shaft. The valve is movable between an open position and a closed position. A hydraulic actuator is coupled to the shaft. The hydraulic actuator is configured to utilize fuel as a working fluid. The hydraulic actuator is configured to move the valve between the open position and the closed position.Type: GrantFiled: May 24, 2019Date of Patent: September 20, 2022Assignee: Hamilton Sundstrand CorporationInventors: Francis P. Marocchini, Aaron F. Rickis, August M. Coretto, Scott W. Simpson, Gary R. Marconi, Glenn Gradischer
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Patent number: 10927898Abstract: A combination shaft including a first shaft including an axial protrusion including a first circumferential surface defining a first outer diameter and a second circumferential surface defining a second outer diameter, and a second shaft having a cavity therein configured to receive at least a portion of the first shaft and being configured to drive an air valve, having internal threads, and defining at least a first inner radial surface having a first inner diameter and a second inner radial surface having second inner diameter, the internal threads being engagable with the external threads to prevent axial movement between the first shaft and the second shaft and the first inner radial surface being engagable with the first outer radial surface and the second inner radial surface being engagable with the second outer radial surface to provide radial centering of the first shaft to the second shaft.Type: GrantFiled: May 31, 2019Date of Patent: February 23, 2021Assignee: Hamilton Sundstrand CorporationInventors: Francis P. Marocchini, Glenn Gradischer
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Publication number: 20200392905Abstract: A valve assembly for a turbine engine includes a valve arranged in an air flow path. The valve has a shaft. The valve is movable between an open position and a closed position. An electric actuator is coupled to the shaft and is configured to move the valve between the open position and the closed position. A thermal barrier is arranged between the valve and the electric actuator.Type: ApplicationFiled: June 14, 2019Publication date: December 17, 2020Inventors: Francis P. Marocchini, Aaron F. Rickis, August M. Coretto, Gary R. Marconi, Scott W. Simpson, Glenn Gradischer, William E. Rhoden
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Publication number: 20200378444Abstract: A combination shaft including a first shaft including an axial protrusion including a first circumferential surface defining a first outer diameter and a second circumferential surface defining a second outer diameter, and a second shaft having a cavity therein configured to receive at least a portion of the first shaft and being configured to drive an air valve, having internal threads, and defining at least a first inner radial surface having a first inner diameter and a second inner radial surface having second inner diameter, the internal threads being engagable with the external threads to prevent axial movement between the first shaft and the second shaft and the first inner radial surface being engagable with the first outer radial surface and the second inner radial surface being engagable with the second outer radial surface to provide radial centering of the first shaft to the second shaft.Type: ApplicationFiled: May 31, 2019Publication date: December 3, 2020Inventors: Francis P. Marocchini, Glenn Gradischer
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Publication number: 20200370480Abstract: A valve assembly for a turbine engine includes a valve arranged in an air flow path. The valve has a shaft. The valve is movable between an open position and a closed position. A hydraulic actuator is coupled to the shaft. The hydraulic actuator is configured to utilize fuel as a working fluid. The hydraulic actuator is configured to move the valve between the open position and the closed position.Type: ApplicationFiled: May 24, 2019Publication date: November 26, 2020Inventors: Francis P. Marocchini, Aaron F. Rickis, August M. Coretto, Scott W. Simpson, Gary R. Marconi, Glenn Gradischer
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Patent number: 10711903Abstract: A transfer valve includes a spool comprising a first circumferential flow channel at a first axial position of the spool and a second circumferential flow channel at a second axial position of the spool. The first circumferential flow channel and the second circumferential flow channel have different circumferential positions and are defined only partially circumferentially, and a sleeve disposed over the spool. The sleeve includes at least three flow windows defined through the sleeve at an axial position of the sleeve, each flow window having different circumferential positions on the sleeve. The spool is configured to translate within the sleeve between a first position and a second position.Type: GrantFiled: June 8, 2017Date of Patent: July 14, 2020Assignee: Hamilton Sundstrand CorporationInventors: August M. Coretto, Aaron F. Rickis, Francis P. Marocchini, Glenn Gradischer, Richard H. Bostiga, Ryan Susca
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Publication number: 20190195092Abstract: A mount according to an example of the present disclosure includes a locating pin, a load pin, a fastener, the fastener configured to retain a component on at least one of the locating pin and the load pin, the fastener including a bolt, a mounting boss and a spring, the spring allowing the mounting boss to move with respect to the bolt, and wherein the bolt is held captive in the mounting boss with a captive feature. A gas turbine engine and a method of mounting a component are also disclosed.Type: ApplicationFiled: December 22, 2017Publication date: June 27, 2019Inventors: Aaron F. Rickis, Elise N. Zimmerman, Gary R. Marconi, Glenn Gradischer, August M. Coretto, Francis P. Marocchini
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Publication number: 20180355984Abstract: A transfer valve includes a spool comprising a first circumferential flow channel at a first axial position of the spool and a second circumferential flow channel at a second axial position of the spool. The first circumferential flow channel and the second circumferential flow channel have different circumferential positions and are defined only partially circumferentially, and a sleeve disposed over the spool. The sleeve includes at least three flow windows defined through the sleeve at an axial position of the sleeve, each flow window having different circumferential positions on the sleeve. The spool is configured to translate within the sleeve between a first position and a second position.Type: ApplicationFiled: June 8, 2017Publication date: December 13, 2018Inventors: August M. Coretto, Aaron F. Rickis, Francis P. Marocchini, Glenn Gradischer, Richard H. Bostiga, Ryan Susca
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Patent number: 10077747Abstract: A fuel control system includes a high pressure relief valve fluidly connected to a fuel pump outlet. The high pressure relief valve includes a closure and a nozzle. The closure has an opening and a locking notch defined by a circumferential wall. The nozzle has a base portion that is received within the opening and has a rim extending between a first surface and a second surface. The nozzle has a tab extending from the rim that is received within the locking notch.Type: GrantFiled: January 12, 2016Date of Patent: September 18, 2018Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Aaron F. Rickis, Elise N. Zimmerman, Glenn Gradischer, Francis P. Marocchini
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Patent number: 9784184Abstract: A bleed valve assembly includes a flow duct with an inlet and an outlet disposed downstream from the inlet. The outlet is smaller in cross-sectional area than a region of the flow duct disposed between the inlet and the outlet. A piston housing is disposed inside the flow duct between the inlet and the outlet so as to form an annular flow passage between the flow duct and the piston housing. The piston housing is axially aligned with a center axis of the flow duct. At least one rib extends between the flow duct and the piston housing. A sleeve piston is disposed inside the piston housing and is configured to extend downstream of the piston housing in a closed position. The sleeve piston comprises an outer wall that is at least the same in cross-sectional area as the outlet of the flow duct.Type: GrantFiled: March 16, 2015Date of Patent: October 10, 2017Assignee: Hamilton Sundstrand CorporationInventors: Francis P. Marocchini, Robert Goodman, Aaron F. Rickis, Glenn Gradischer
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Publication number: 20170198668Abstract: A fuel control system includes a high pressure relief valve fluidly connected to a fuel pump outlet. The high pressure relief valve includes a closure and a nozzle. The closure has an opening and a locking notch defined by a circumferential wall. The nozzle has a base portion that is received within the opening and has a rim extending between a first surface and a second surface. The nozzle has a tab extending from the rim that is received within the locking notch.Type: ApplicationFiled: January 12, 2016Publication date: July 13, 2017Inventors: Aaron F. Rickis, Elise N. Zimmerman, Glenn Gradischer, Francis P. Marocchini
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Patent number: 9689315Abstract: A bleed valve includes inlet and outlet housings, a hollow shaft defining a valve axis, and a full-area piston. The shaft includes a first end mounted to an inner diameter portion of the inlet housing and a second end mounted to an end cap of the outlet housing. The piston is slidably mounted to the shaft. A first chamber is defined between an upstream side of the piston and the inner diameter portion of the inlet housing. A second chamber is defined between a downstream side of the piston and the end cap of the outlet housing. An area of an upstream surface of the piston at an angle with respect to the valve axis is in fluid communication with the first chamber, and is substantially equal to an area of a downstream surface of the piston at an angle with respect to the valve axis and in fluid communication with the second chamber.Type: GrantFiled: February 13, 2015Date of Patent: June 27, 2017Assignee: Hamilton Sundstrand CorporationInventors: Francis P. Marocchini, Aaron F. Rickis, Glenn Gradischer, Robert Goodman
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Publication number: 20160273450Abstract: A bleed valve assembly includes a flow duct with an inlet and an outlet disposed downstream from the inlet. The outlet is smaller in cross-sectional area than a region of the flow duct disposed between the inlet and the outlet. A piston housing is disposed inside the flow duct between the inlet and the outlet so as to form an annular flow passage between the flow duct and the piston housing. The piston housing is axially aligned with a center axis of the flow duct. At least one rib extends between the flow duct and the piston housing. A sleeve piston is disposed inside the piston housing and is configured to extend downstream of the piston housing in a closed position. The sleeve piston comprises an outer wall that is at least the same in cross-sectional area as the outlet of the flow duct.Type: ApplicationFiled: March 16, 2015Publication date: September 22, 2016Inventors: Francis P. Marocchini, Robert Goodman, Aaron F. Rickis, Glenn Gradischer
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Publication number: 20160237913Abstract: A bleed valve includes inlet and outlet housings, a hollow shaft defining a valve axis, and a full-area piston. The shaft includes a first end mounted to an inner diameter portion of the inlet housing and a second end mounted to an end cap of the outlet housing. The piston is slidably mounted to the shaft. A first chamber is defined between an upstream side of the piston and the inner diameter portion of the inlet housing. A second chamber is defined between a downstream side of the piston and the end cap of the outlet housing. An area of an upstream surface of the piston at an angle with respect to the valve axis is in fluid communication with the first chamber, and is substantially equal to an area of a downstream surface of the piston at an angle with respect to the valve axis and in fluid communication with the second chamber.Type: ApplicationFiled: February 13, 2015Publication date: August 18, 2016Inventors: Francis P. Marocchini, Aaron F. Rickis, Glenn Gradischer, Robert Goodman
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Patent number: 9303660Abstract: A valve includes a housing having an inlet and an outlet. A spool is fixed within the housing and defines a flow window therethrough for fluid communication between the inlet and the outlet. A piston is slidingly engaged in a piston compartment of the spool. A sleeve is slidingly engaged with the spool on an outer surface of the spool. The piston and sleeve are operatively connected for common motion along a sliding axis relative to the spool and housing between a first position in which the sleeve occludes the flow window to inhibit flow from the inlet to the outlet, and a second position in which the sleeve unoccludes the flow window to allow flow from the inlet to the outlet.Type: GrantFiled: March 25, 2014Date of Patent: April 5, 2016Assignee: Hamilton Sundstrand CorporationInventors: Francis P. Marocchini, Glenn Gradischer
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Patent number: 9151429Abstract: A flow restrictor includes a first disc and a second disc. A rod extends between the first disc and the second disc and spaces the first disc from the second disc. A first hole is formed in the first disc.Type: GrantFiled: June 5, 2013Date of Patent: October 6, 2015Assignee: Hamilton Sundstrand CorporationInventor: Glenn Gradischer