Patents by Inventor Doren C. Smith
Doren C. Smith 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: 10344845Abstract: A sun gear for an integrated drive generator (IDG) includes a sun gear body having an outer diametric edge and an inner diametric wall. The outer diametric edge includes 33 gear teeth.Type: GrantFiled: April 2, 2015Date of Patent: July 9, 2019Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Glenn C. Lemmers, Jr., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Patent number: 10333365Abstract: An end winding support segment for a generator rotor includes a support segment body with a curved inner surface configured to be adjacent to a rotor shaft, a winding support arm extending radially outward from the support segment body, and an orifice extending from the curved inner surface of the support to an exterior surface of the support adjacent the winding support arm with the orifice configured to transfer lubricant from a surface of the rotor shaft to a winding located on the winding support arm.Type: GrantFiled: January 16, 2015Date of Patent: June 25, 2019Assignee: Hamilton Sundstrand CorporationInventors: Dhaval Patel, Glenn W. Hufstedler, Ted A. Martin, Eric A. Brust, Shaun Maconaghy, Kevin J. Koester, Doren C. Smith, Alan D. Hanson, William D. Sherman
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Patent number: 10273990Abstract: A fixed wobbler of a hydraulic unit includes a body having a first end and an opposite second end, the first end defining a first surface, and the second end defining a second surface oriented at an angle relative to the first surface, the body having an outer diameter and an inner wall defining an inner diameter, wherein the outer diameter is approximately 2.1655+0.0000?0.0007 inches (5.5004+0.000?0.0018 cm), and wherein the inner diameter is approximately 1.043±0.003 inches (2.6492±0.0076 cm).Type: GrantFiled: January 14, 2015Date of Patent: April 30, 2019Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Doren C. Smith, Jonathan C. Dell, Jong-Yeong Yung, Ted A. Martin
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Patent number: 10024413Abstract: Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. The integrated drive generator is a constant speed output, variable speed input transmission that includes the differential and a hydraulic unit. In general, the integrated drive generator utilizes the variable speed input from an accessory gear box of an engine to drive or control a hydraulic unit, which in turn drives or controls a churn leg member of the differential. As the differential is driven, speeds of each speed member of the differential are then summed to generate the constant speed output to drive the synchronous salient pole generator.Type: GrantFiled: April 3, 2015Date of Patent: July 17, 2018Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Glenn C. Lemmers, Jr., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Patent number: 9863408Abstract: A slipper retainer of a hydraulic unit having a circular body having a back surface and an outer edge, the circular body defining a diameter of about 2.240 inches (5.629 cm), a central aperture through a center of the circular body, the circular body having a curved surface defining an edge of the central aperture, wherein the curved surface is defined by a sphere that is centered at a point located a distance of about 0.209 inches (0.531 cm) from the back surface of the body, and a plurality of slipper apertures located between the curved surface of the circular body and the outer edge of the circular body, wherein each slipper aperture of the plurality of slipper apertures has a diameter of about 0.464 inches (1.179 cm).Type: GrantFiled: January 16, 2015Date of Patent: January 9, 2018Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Doren C. Smith
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Patent number: 9845679Abstract: A port plate assembly of a hydraulic unit includes a port plate and a journal bearing. The port plate includes a fixed-speed interface side having a fixed-speed interface surface, and a variable-speed interface side having a variable-speed interface surface. A plurality of kidney-shaped apertures is defined at a kidney pitch diameter about a central bore of the port plate between the fixed-speed interface surface and the variable-speed interface surface. The port plate also includes control cylinder interface formed at a control cylinder radial offset from a central axis of the central bore, where a ratio of the control cylinder radial offset to the kidney pitch diameter is between 1.629 and 1.639. The journal bearing is installed in the central bore of the port plate, where the journal bearing provides an interface for a fixed-speed shaft and a variable-speed shaft of the hydraulic unit.Type: GrantFiled: March 18, 2015Date of Patent: December 19, 2017Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Doren C. Smith
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Patent number: 9759305Abstract: A planet gear for an integrated drive generator includes a planet gear body having an outer diametric surface provided with fifteen (15) gear teeth. The integrated drive generator can include a housing that surrounds an input system. The input system can be operatively coupled to a variable speed drive source. The integrated drive generator can also include a generator and an epicyclic differential gear system.Type: GrantFiled: April 2, 2015Date of Patent: September 12, 2017Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Glenn C. Lemmers, Jr., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Patent number: 9709157Abstract: Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. The integrated drive generator is a constant speed output, variable speed input transmission that includes the differential and a hydraulic unit. In general, the integrated drive generator utilizes the variable speed input from an accessory gear box of an engine to drive or control a hydraulic unit, which in turn drives or controls a churn leg member of the differential. As the differential is driven, speeds of each speed member of the differential are then summed to generate the constant speed output to drive the synchronous salient pole generator.Type: GrantFiled: April 3, 2015Date of Patent: July 18, 2017Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Glenn C. Lemmers, Jr., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Patent number: 9695926Abstract: Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. The integrated drive generator is a constant speed output, variable speed input transmission that includes the differential and a hydraulic unit. In general, the integrated drive generator utilizes the variable speed input from an accessory gear box of an engine to drive or control a hydraulic unit, which in turn drives or controls a churn leg member of the differential. As the differential is driven, speeds of each speed member of the differential are then summed to generate the constant speed output to drive the synchronous salient pole generator.Type: GrantFiled: April 3, 2015Date of Patent: July 4, 2017Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Glenn C. Lemmers, Jr., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Patent number: 9528552Abstract: A roller bearing outer race of a hydraulic unit having a body having a first part and a second part. The first part comprising a central section having an exterior curved portion, an exterior angled portion, and a circular inner portion, wherein a central aperture defining a first axis passes through the circular inner portion of the central section, a first arm extending from a first side of the central section, and a second arm extending from a second side of the central section. A race within the circular inner portion of the central section, the race defined by a first race wall and a second race wall and wherein a thickness of the first arm and the second arm is about 0.450 inches (1.143 cm) and a radial distance of an exterior surface of the exterior curved portion from the first axis is about 0.657 inches (1.669 cm).Type: GrantFiled: January 16, 2015Date of Patent: December 27, 2016Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Doren C. Smith, Edward C. Allen
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Patent number: 9470302Abstract: Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. The integrated drive generator is a constant speed output, variable speed input transmission that includes the differential and a hydraulic unit. In general, the integrated drive generator utilizes the variable speed input from an accessory gear box of an engine to drive or control a hydraulic unit, which in turn drives or controls a churn leg member of the differential. As the differential is driven, speeds of each speed member of the differential are then summed to generate the constant speed output to drive the synchronous salient pole generator.Type: GrantFiled: April 3, 2015Date of Patent: October 18, 2016Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Glenn C. Lemmers, Jr., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Publication number: 20160290468Abstract: A sun gear for an integrated drive generator (IDG) includes a sun gear body having an outer diametric edge and an inner diametric wall. The outer diametric edge includes 33 gear teeth.Type: ApplicationFiled: April 2, 2015Publication date: October 6, 2016Inventors: Glenn C. Lemmers, JR., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Publication number: 20160290470Abstract: Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. The integrated drive generator is a constant speed output, variable speed input transmission that includes the differential and a hydraulic unit. In general, the integrated drive generator utilizes the variable speed input from an accessory gear box of an engine to drive or control a hydraulic unit, which in turn drives or controls a churn leg member of the differential. As the differential is driven, speeds of each speed member of the differential are then summed to generate the constant speed output to drive the synchronous salient pole generator.Type: ApplicationFiled: April 3, 2015Publication date: October 6, 2016Inventors: Glenn C. Lemmers, JR., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Publication number: 20160290473Abstract: Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. The integrated drive generator is a constant speed output, variable speed input transmission that includes the differential and a hydraulic unit. In general, the integrated drive generator utilizes the variable speed input from an accessory gear box of an engine to drive or control a hydraulic unit, which in turn drives or controls a churn leg member of the differential. As the differential is driven, speeds of each speed member of the differential are then summed to generate the constant speed output to drive the synchronous salient pole generator.Type: ApplicationFiled: April 3, 2015Publication date: October 6, 2016Inventors: Glenn C. Lemmers, JR., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Publication number: 20160290469Abstract: Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. The integrated drive generator is a constant speed output, variable speed input transmission that includes the differential and a hydraulic unit. In general, the integrated drive generator utilizes the variable speed input from an accessory gear box of an engine to drive or control a hydraulic unit, which in turn drives or controls a churn leg member of the differential. As the differential is driven, speeds of each speed member of the differential are then summed to generate the constant speed output to drive the synchronous salient pole generator.Type: ApplicationFiled: April 3, 2015Publication date: October 6, 2016Inventors: Glenn C. Lemmers, JR., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Publication number: 20160290491Abstract: Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. The integrated drive generator is a constant speed output, variable speed input transmission that includes the differential and a hydraulic unit. In general, the integrated drive generator utilizes the variable speed input from an accessory gear box of an engine to drive or control a hydraulic unit, which in turn drives or controls a churn leg member of the differential. As the differential is driven, speeds of each speed member of the differential are then summed to generate the constant speed output to drive the synchronous salient pole generator.Type: ApplicationFiled: April 3, 2015Publication date: October 6, 2016Inventors: Glenn C. Lemmers, JR., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Publication number: 20160290489Abstract: A ring gear for an integrated drive generator (IDG) includes a gear body including an outer diametric edge and an inner diametric wall. The outer diametric edge includes 129 gear teeth.Type: ApplicationFiled: April 2, 2015Publication date: October 6, 2016Inventors: Glenn C. Lemmers, JR., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Publication number: 20160290396Abstract: Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. The integrated drive generator is a constant speed output, variable speed input transmission that includes the differential and a hydraulic unit. In general, the integrated drive generator utilizes the variable speed input from an accessory gear box of an engine to drive or control a hydraulic unit, which in turn drives or controls a churn leg member of the differential. As the differential is driven, speeds of each speed member of the differential are then summed to generate the constant speed output to drive the synchronous salient pole generator.Type: ApplicationFiled: April 3, 2015Publication date: October 6, 2016Inventors: Glenn C. Lemmers, JR., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Publication number: 20160290467Abstract: A planet gear for an integrated drive generator (IDG) includes a planet gear body having an outer diametric surface provided with 15 gear teeth.Type: ApplicationFiled: April 2, 2015Publication date: October 6, 2016Inventors: Glenn C. Lemmers, JR., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
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Publication number: 20160281781Abstract: A roller bearing outer race of a hydraulic unit has a body comprising a central section having an exterior curved portion, an exterior angled portion, and a circular inner portion, wherein a central aperture defining a first axis passes through the circular inner portion of the central section, a first arm extending from a first side of the central section, and a second arm extending from a second side of the central section. A race within the circular inner portion of the central section, the race defined by a first race wall and a second race wall and wherein a thickness of the first arm and the second arm is about 0.450 inches (1.143 cm) and a radial distance of an exterior surface of the exterior curved portion from the first axis is about 0.657 inches (1.669 cm).Type: ApplicationFiled: March 26, 2015Publication date: September 29, 2016Inventors: Kris H. Campbell, Glenn C. Lemmers, JR., Doren C. Smith, Edward C. Allen, Jong-Yeong Yung