Patents by Inventor Keith E. Short
Keith E. Short 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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Publication number: 20200056547Abstract: An air turbine starter device includes a gear assembly, a rotor arranged in a cavity of a housing and operably connected the gear assembly, a first manifold having a cavity with a first manifold port operative to direct compressed air to the rotor, and a second manifold having a cavity with a second manifold port operative to direct compressed air to the rotor. The first manifold is larger than the second manifold, the second manifold is fluidly connected in parallel with the first manifold, and the first manifold port and the second manifold port are operative to drive the rotor in a common direction for starting a gas turbine connected to the gear assembly. Air turbine starter systems and methods of starting gas turbine engines are also described.Type: ApplicationFiled: October 23, 2019Publication date: February 20, 2020Inventors: Keith E. Short, Daniel Richard Walker
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Patent number: 10480417Abstract: An air turbine starter device comprises a rotor arranged in a cavity of a housing, a first manifold having a cavity with a port operative to direct compressed air to the rotor, a second manifold having a cavity with a port operative to direct compressed air to the rotor, wherein the first manifold is larger than the second manifold.Type: GrantFiled: July 14, 2016Date of Patent: November 19, 2019Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Keith E. Short, Daniel Richard Walker
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Publication number: 20180016988Abstract: An air turbine starter device comprises a rotor arranged in a cavity of a housing, a first manifold having a cavity with a port operative to direct compressed air to the rotor, a second manifold having a cavity with a port operative to direct compressed air to the rotor, wherein the first manifold is larger than the second manifold.Type: ApplicationFiled: July 14, 2016Publication date: January 18, 2018Inventors: Keith E. Short, Daniel Richard Walker
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Patent number: 9863432Abstract: A method for filtering a fluid that includes collecting contaminates in the fluid, passing the fluid from inside an internal cavity of a first shaft through a tight clearance at a spline connection between the first shaft and a second shaft such that the fluid is filtered of contaminates as a result of the tight clearance, and delivering the filtered fluid to a delivery location.Type: GrantFiled: May 26, 2017Date of Patent: January 9, 2018Assignee: Hamilton Sundstrand CorporationInventors: Steven A. Heitz, Keith E. Short
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Publication number: 20170260989Abstract: A method for filtering a fluid that includes collecting contaminates in the fluid, passing the fluid from inside an internal cavity of a first shaft through a tight clearance at a spline connection between the first shaft and a second shaft such that the fluid is filtered of contaminates as a result of the tight clearance, and delivering the filtered fluid to a delivery location.Type: ApplicationFiled: May 26, 2017Publication date: September 14, 2017Inventors: Steven A. Heitz, Keith E. Short
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Patent number: 9689399Abstract: An assembly for filtering a fluid includes a first rotatable shaft with a first set of splines. The first rotatable shaft has an internal cavity containing the fluid. Also included is a second rotatable shaft with a second set of splines mated to the first set of splines. The second rotatable shaft includes at least a portion of a supply hole. The first rotatable shaft and the second rotatable shaft are configured to convey the fluid from the internal cavity through a tight clearance between the first set of splines and the second set of splines, to filter the fluid, and then out the supply hole.Type: GrantFiled: March 6, 2014Date of Patent: June 27, 2017Assignee: Hamilton Sundstrand CorporationInventors: Steven A. Heitz, Keith E. Short
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Patent number: 9353848Abstract: A gearbox assembly for use in a gas turbine engine includes a gearbox housing and first and second shafts. The first shaft is rotatably mounted in the gearbox housing. The first shaft has a first set of splines and defines a central cavity. The second shaft has a second set of splines engaged with the first set of splines. A scupper is positioned on an inner surface of the gearbox housing proximate the first shaft so as to direct liquid from the scupper through the central cavity of the first shaft to the first and second sets of splines.Type: GrantFiled: March 13, 2013Date of Patent: May 31, 2016Assignee: Hamilton Sundstrand CorporationInventors: Michael R. Blewett, Keith E. Short
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Patent number: 9284866Abstract: A lube system is provided and includes an air-oil tank including a deaerator configured to remove a first quantity of oil from a first air-oil supply to generate a second air-oil supply having a second quantity of oil, which is smaller than the first quantity of oil, the air oil tank being configured to output the second air-oil supply to an air vent line, a de-oiler disposed along the air vent line and configured to remove from the second air-oil supply oil mist including oil droplets of a minimum size and a system disposed between the deaerator and the de-oiler, which is configured to encourage formation of the oil droplets of at least the minimum size.Type: GrantFiled: May 25, 2012Date of Patent: March 15, 2016Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Keith E. Short, Michael R. Blewett
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Patent number: 9194254Abstract: A lube system is provided and includes an air-oil tank including a deaerator configured to remove a first quantity of oil from a first air-oil supply to generate a second air-oil supply having a second quantity of oil, which is smaller than the first quantity of oil, the air oil tank being configured to output the second air-oil supply to an air vent line, a de-oiler disposed along the air vent line and configured to remove from the second air-oil supply oil mist including oil droplets of a minimum size and a pressure regulating valve (PRV) disposed along the air vent line between the air-oil tank and the de-oiler to regulate fluid pressures within the air-oil tank, the PRV being configured to encourage formation of the oil droplets of at least the minimum size.Type: GrantFiled: May 25, 2012Date of Patent: November 24, 2015Assignee: Hamilton Sundstrand CorporationInventors: Keith E. Short, Michael R. Blewett
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Publication number: 20150252815Abstract: An assembly for filtering a fluid includes a first rotatable shaft with a first set of splines. The first rotatable shaft has an internal cavity containing the fluid. Also included is a second rotatable shaft with a second set of splines mated to the first set of splines. The second rotatable shaft includes at least a portion of a supply hole. The first rotatable shaft and the second rotatable shaft are configured to convey the fluid from the internal cavity through a tight clearance between the first set of splines and the second set of splines, to filter the fluid, and then out the supply hole.Type: ApplicationFiled: March 6, 2014Publication date: September 10, 2015Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Steven A. Heitz, Keith E. Short
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Patent number: 9127661Abstract: A bootstrap accumulator system includes an actuator cylinder that drives an accumulator piston through a multiple of nested actuator sleeves, comprising a multistage actuator cylinder.Type: GrantFiled: April 28, 2011Date of Patent: September 8, 2015Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Keith E. Short, Dean A. Norem
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Patent number: 8945284Abstract: An assembly includes a housing having a housing cavity, an inlet, and an outlet, a rotatable shaft positioned proximate the outlet, and a seal positioned at an interface of the rotatable shaft and the housing. The seal includes porous material adjacent the shaft and the housing and a shell substantially separating the porous material from the housing cavity. The shell includes an inlet that allows fluid flow from the housing cavity to the porous material and an outlet that allows fluid flow from the porous material to the housing interior. The inlet is positioned radially inward of the outlet.Type: GrantFiled: June 5, 2012Date of Patent: February 3, 2015Assignee: Hamilton Sundstrand CorporationInventors: Keith E. Short, Michael R. Blewett
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Patent number: 8876476Abstract: An air turbine starter and accessory gearbox assembly, the accessory gearbox includes a gear shaft and the air turbine starter includes an output shaft and a clutch assembly. The output shaft extends from the accessory gearbox and is coupled to and supported by the gear shaft. The accessory gearbox is adapted to receive the air turbine starter such that the clutch assembly and the output shaft are disposed within a casing of the accessory gearbox when the air turbine starter is mounted to the accessory gearbox.Type: GrantFiled: November 16, 2010Date of Patent: November 4, 2014Assignee: Hamilton Sundstrand CorporationInventors: Michael R. Blewett, Keith E. Short
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Patent number: 8876933Abstract: A breather assembly for use with a gas turbine engine includes a static housing for accepting a fluidic mixture of substances, a rotatable separator having one or more fluid inlets and arranged about an axis of rotation, an exhaust outlet defined in the housing and positioned coaxially with the rotatable separator to accept fluidic exhaust from the rotatable separator, and a static diffuser supported by the housing at or near the exhaust outlet downstream from the rotatable separator. A portion of the static diffuser extends within the rotatable separator. The static diffuser includes a flow-straightening structure configured to reduce vortex flows in fluid flows passing through the exhaust outlet.Type: GrantFiled: December 8, 2010Date of Patent: November 4, 2014Assignee: Hamilton Sundstrand CorporationInventors: Keith E. Short, Michael R. Blewett
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Patent number: 8845275Abstract: A cranking pad assembly for a gearbox of a turbomachine including a cranking pad shaft rotatably secured in a gearbox housing and engageable with a gearbox drivetrain when urged inwardly into the gearbox housing. The cranking pad shaft includes an interface for a cranking tool. An interlock pin retains the cranking tool at the cranking pad shaft and a disconnect spring is operably connected to the gearbox housing to bias the cranking pad shaft outwardly from the gearbox housing.Type: GrantFiled: November 11, 2010Date of Patent: September 30, 2014Assignee: Hamilton Sundstrand CorporationInventors: Keith E. Short, Jeff A. Brown
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Publication number: 20140274420Abstract: A gearbox assembly for use in a gas turbine engine includes a gearbox housing and first and second shafts. The first shaft is rotatably mounted in the gearbox housing. The first shaft has a first set of splines and defines a central cavity. The second shaft has a second set of splines engaged with the first set of splines. A scupper is positioned on an inner surface of the gearbox housing proximate the first shaft so as to direct liquid from the scupper through the central cavity of the first shaft to the first and second sets of splines.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Michael R. Blewett, Keith E. Short
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Patent number: 8813607Abstract: A gearbox includes an outer housing including manual rotation access passage and a manual rotation shaft coupled to a spool of an engine to rotate the engine spool. The gearbox also includes coupled to the outer housing that includes a flapper valve that, in a closed position, prevents a lubricant from escaping from the outer housing via the manual rotation access passage.Type: GrantFiled: June 20, 2011Date of Patent: August 26, 2014Assignee: Hamilton Sundstrand CorporationInventors: Michael R. Blewett, Keith E. Short
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Patent number: 8657931Abstract: A gearbox that includes an inlet configured to receive a mixture of air and oil from an external source and a deoiler. The deoiler includes a shaft including an outlet passage formed on an inner portion of the shaft, a separator unit coupled to and surrounding a portion of the shaft and including an inlet port, and a synchronizer including one or more blades and that is coupled to the shaft proximate the inlet port.Type: GrantFiled: August 17, 2011Date of Patent: February 25, 2014Assignee: Hamilton Sundstrand CorporationInventors: Keith E. Short, Michael R. Blewett
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Publication number: 20130319240Abstract: An assembly includes a housing having a housing cavity, an inlet, and an outlet, a rotatable shaft positioned proximate the outlet, and a seal positioned at an interface of the rotatable shaft and the housing. The seal includes porous material adjacent the shaft and the housing and a shell substantially separating the porous material from the housing cavity. The shell includes an inlet that allows fluid flow from the housing cavity to the porous material and an outlet that allows fluid flow from the porous material to the housing interior. The inlet is positioned radially inward of the outlet.Type: ApplicationFiled: June 5, 2012Publication date: December 5, 2013Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Keith E. Short, Michael R. Blewett
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Publication number: 20130313050Abstract: A lube system is provided and includes an air-oil tank including a deaerator configured to remove a first quantity of oil from a first air-oil supply to generate a second air-oil supply having a second quantity of oil, which is smaller than the first quantity of oil, the air oil tank being configured to output the second air-oil supply to an air vent line, a de-oiler disposed along the air vent line and configured to remove from the second air-oil supply oil mist including oil droplets of a minimum size and a system disposed between the deaerator and the de-oiler, which is configured to encourage formation of the oil droplets of at least the minimum size.Type: ApplicationFiled: May 25, 2012Publication date: November 28, 2013Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Keith E. Short, Michael R. Blewett