Patents by Inventor Thomas Chadwick Waldman
Thomas Chadwick Waldman 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: 20220333501Abstract: Light weight fan casing configurations for energy absorption are disclosed herein. An apparatus includes a first set of metal bands positioned within a containment casing of a turbofan engine, and a second set of metal bands traversing the first set of metal bands, the first set of metal bands and the second set of metal bands to surround at least a portion of the turbofan engine.Type: ApplicationFiled: April 19, 2021Publication date: October 20, 2022Inventors: Nitesh Jain, Nicholas J. Kray, Veeraraju V, Deepak Ghiya, Sreekanth Kumar Dorbala, Kishore Budumuru, Apostolos Karafillis, Thomas Chadwick Waldman, Theodore E. Anderson, Joel F. Kirk, Edward A. Rainous, Michael E. Eriksen, Mojibur Rahman
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Patent number: 11215069Abstract: A softwall containment system for a machine includes an inner wall circumscribing a bladed rotatable member of the machine and extending from a forward end to an aft end. The softwall containment system also includes an outer wall circumscribing the inner wall and extending from a forward end to an aft end. The outer wall is spaced radially outwardly from the inner wall. The outer wall extends axially between a first joint coupling the forward end of the inner wall to the forward end of the outer wall and a second joint coupling the aft end of the inner wall to the aft end of the outer wall. The softwall containment system also includes an anti-ballistic material wrap covering the outer wall, the anti-ballistic material wrap including at least one of a first extension extending forward of the first joint and a second extension extending aft of the second joint.Type: GrantFiled: May 16, 2017Date of Patent: January 4, 2022Assignee: General Electric CompanyInventors: Nicholas Joseph Kray, Thomas Chadwick Waldman, Manoj Kumar Jain, Mojibur Rahman, Nitesh Jain, Nagamohan Govinahalli Prabhakar, Scott Roger Finn, Apostolos Pavlos Karafillis
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Patent number: 11066958Abstract: A bolted joint apparatus includes: a first component including a first row of first bolt holes extending therethrough; a second component including a second row of second bolt holes extending therethrough wherein the second bolt holes are aligned coaxially with the first bolt holes, a plurality of fasteners, each of fasteners disposed through aligned pairs of the first and second bolt holes to couple together the first and second components, each of the fasteners including a shank; and crushable spacers disposed around the shanks of the fasteners, the crushable spacers clamped in compression between the fasteners and one of the components, wherein each of the crushable spacers has a tubular body interconnecting first and second enlarged ends, the tubular body being defined by a peripheral wall which incorporates at least one weakening feature.Type: GrantFiled: March 5, 2020Date of Patent: July 20, 2021Assignee: General Electric CompanyInventors: Apostolos Pavlos Karafillis, Manoj Kumar Jain, Thomas Chadwick Waldman, Nagamohan Govinahalli Prabhakar
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Patent number: 10704414Abstract: A containment structure for surrounding a rotatable machine includes a double-walled inner shell having a forward end, an aft end, and a substantially cylindrical body extending therebetween. The inner shell includes an inner wall at least partially surrounding a bladed portion of the bladed rotor, and an outer portion that branches radially outward from the inner wall. The containment structure also includes a substantially cylindrical back sheet coupled to the outer portion and disposed radially outward of the inner wall.Type: GrantFiled: March 10, 2017Date of Patent: July 7, 2020Assignee: General Electric CompanyInventors: Nitesh Jain, Nicholas Joseph Kray, Manoj Kumar Jain, Mojibur Rahman, Nagamohan Govinahalli Prabhakar, Scott Roger Finn, Thomas Chadwick Waldman, Apostolos Pavlos Karafillis
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Publication number: 20200200045Abstract: A bolted joint apparatus includes: a first component including a first row of first bolt holes extending therethrough; a second component including a second row of second bolt holes extending therethrough wherein the second bolt holes are aligned coaxially with the first bolt holes, a plurality of fasteners, each of fasteners disposed through aligned pairs of the first and second bolt holes to couple together the first and second components, each of the fasteners including a shank; and crushable spacers disposed around the shanks of the fasteners, the crushable spacers clamped in compression between the fasteners and one of the components, wherein each of the crushable spacers has a tubular body interconnecting first and second enlarged ends, the tubular body being defined by a peripheral wall which incorporates at least one weakening feature.Type: ApplicationFiled: March 5, 2020Publication date: June 25, 2020Inventors: Apostolos Pavlos Karafillis, Manoj Kumar Jain, Thomas Chadwick Waldman, Nagamohan Govinahalli Prabhakar
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Patent number: 10677261Abstract: A turbine engine that includes an engine casing including a shell and an angel wing member. The angel wing member includes a base defined at the shell, a tip positioned distal from the base, and a first side and a second side that define a thickness of the angel wing member. The thickness of the angel wing member is non-uniform between the base and the tip.Type: GrantFiled: April 13, 2017Date of Patent: June 9, 2020Assignee: General Electric CompanyInventors: Nicholas Joseph Kray, Thomas Chadwick Waldman, James Edward Thompson, Douglas Ward, Apostolos Pavlos Karafillis
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Patent number: 10662813Abstract: A turbine engine that includes an engine casing including a shell and an angel wing member. The angel wing member includes a base defined at the shell and a tip positioned distal from the base. The turbine engine also includes a backsheet extending over the angel wing member such that an angled region is defined in the backsheet at an interface with the tip. The tip has a predetermined contour capable of mitigating stress concentrations in the angled region induced from said tip.Type: GrantFiled: April 13, 2017Date of Patent: May 26, 2020Assignee: General Electric CompanyInventors: Thomas Chadwick Waldman, James Edward Thompson, Douglas Ward, Nicholas Joseph Kray, Scott Roger Finn, Apostolos Pavlos Karafillis
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Patent number: 10436061Abstract: A backsheet for use in a turbine engine fan case includes a first portion including a first portion first end and an opposing first portion second end. The first portion is tapered between the first portion first end and the first portion second end. The backsheet also includes a second portion coupled to the first portion. The second portion includes a second portion first end and an opposing second portion second end. The second portion defines a constant thickness between the second portion first end and the second portion second end.Type: GrantFiled: April 13, 2017Date of Patent: October 8, 2019Assignee: General Electric CompanyInventors: Nicholas Joseph Kray, Thomas Chadwick Waldman, Manoj Kumar Jain, Mojibur Rahman, Nitesh Jain, Nagamohan Govinahalli Prabhakar, Scott Roger Finn, Apostolos Pavlos Karafillis
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Publication number: 20180340447Abstract: A bolted joint apparatus includes: a first component including a first row of first bolt holes extending therethrough; a second component including a second row of second bolt holes extending therethrough wherein the second bolt holes are aligned coaxially with the first bolt holes, a plurality of fasteners, each of fasteners disposed through aligned pairs of the first and second bolt holes to couple together the first and second components, each of the fasteners including a shank; and crushable spacers disposed around the shanks of the fasteners, the crushable spacers clamped in compression between the fasteners and one of the components, wherein each of the crushable spacers has a tubular body interconnecting first and second enlarged ends, the tubular body being defined by a peripheral wall which incorporates at least one weakening feature.Type: ApplicationFiled: May 25, 2017Publication date: November 29, 2018Inventors: Apostolos Pavlos Karafillis, Manoj Kumar Jain, Thomas Chadwick Waldman, Nagamohan Govinahalli Prabhakar
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Publication number: 20180334922Abstract: A softwall containment system for a machine includes an inner wall circumscribing a bladed rotatable member of the machine and extending from a forward end to an aft end. The softwall containment system also includes an outer wall circumscribing the inner wall and extending from a forward end to an aft end. The outer wall is spaced radially outwardly from the inner wall. The outer wall extends axially between a first joint coupling the forward end of the inner wall to the forward end of the outer wall and a second joint coupling the aft end of the inner wall to the aft end of the outer wall. The softwall containment system also includes an anti-ballistic material wrap covering the outer wall, the anti-ballistic material wrap including at least one of a first extension extending forward of the first joint and a second extension extending aft of the second joint.Type: ApplicationFiled: May 16, 2017Publication date: November 22, 2018Inventors: Nicholas Joseph Kray, Thomas Chadwick Waldman, Manoj Kumar Jain, Mojibur Rahman, Nitesh Jain, Nagamohan Govinahalli Prabhakar, Scott Roger Finn, Apostolos Pavlos Karafillis
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Publication number: 20180298780Abstract: A backsheet for use in a turbine engine fan case includes a first portion including a first portion first end and an opposing first portion second end. The first portion is tapered between the first portion first end and the first portion second end. The backsheet also includes a second portion coupled to the first portion. The second portion includes a second portion first end and an opposing second portion second end. The second portion defines a constant thickness between the second portion first end and the second portion second end.Type: ApplicationFiled: April 13, 2017Publication date: October 18, 2018Inventors: Nicholas Joseph Kray, Thomas Chadwick Waldman, Manoj Kumar Jain, Mojibur Rahman, Nitesh Jain, Nagamohan Govinahalli Prabhakar, Scott Roger Finn, Apostolos Pavlos Karafillis
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Publication number: 20180298782Abstract: A turbine engine that includes an engine casing including a shell and an angel wing member. The angel wing member includes a base defined at the shell and a tip positioned distal from the base. The turbine engine also includes a backsheet extending over the angel wing member such that an angled region is defined in the backsheet at an interface with the tip. The tip has a predetermined contour capable of mitigating stress concentrations in the angled region induced from said tip.Type: ApplicationFiled: April 13, 2017Publication date: October 18, 2018Inventors: Thomas Chadwick Waldman, James Edward Thompson, Douglas Ward, Nicholas Joseph Kray, Scott Roger Finn, Apostolos Pavlos Karafillis
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Publication number: 20180298915Abstract: A turbine engine that includes an engine casing including a shell and an angel wing member. The angel wing member includes a base defined at the shell, a tip positioned distal from the base, and a first side and a second side that define a thickness of the angel wing member. The thickness of the angel wing member is non-uniform between the base and the tip.Type: ApplicationFiled: April 13, 2017Publication date: October 18, 2018Inventors: Nicholas Joseph Kray, Thomas Chadwick Waldman, James Edward Thompson, Douglas Ward, Apostolos Pavlos Karafillis
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Publication number: 20180258796Abstract: A containment structure for surrounding a rotatable machine includes a double-walled inner shell having a forward end, an aft end, and a substantially cylindrical body extending therebetween. The inner shell includes an inner wall at least partially surrounding a bladed portion of the bladed rotor, and an outer portion that branches radially outward from the inner wall. The containment structure also includes a substantially cylindrical back sheet coupled to the outer portion and disposed radially outward of the inner wall.Type: ApplicationFiled: March 10, 2017Publication date: September 13, 2018Inventors: Nitesh Jain, Nicholas Joseph Kray, Manoj Kumar Jain, Mojibur Rahman, Nagamohan Govinahalli Prabhakar, Scott Roger Finn, Thomas Chadwick Waldman, Apostolos Pavlos Karafillis