Patents by Inventor Glenn C. Lemmers, Jr.

Glenn C. Lemmers, Jr. 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).

  • Publication number: 20200303980
    Abstract: An electric machine rotor assembly includes a rotor core defining a rotor axis. Windings are seated in the rotor core. A plurality of wedges circumferentially spaced apart around the rotor core relative to the rotor axis. Each rotor core extends axially and separates between two respective portions of the windings. A supply end plate is mounted at a first axial end of the rotor core. A return end plate is mounted at a second axial end of the rotor core opposite the first axial end. A flow path for coolant fluid extends through the supply end plate into the wedges, through the wedges and into the return end plate, and through the return end plate.
    Type: Application
    Filed: March 22, 2019
    Publication date: September 24, 2020
    Inventors: Eric Alan Larson, Glenn C. Lemmers, JR., Brady A. Manogue
  • Publication number: 20200303981
    Abstract: A lamination for use in an integrated drive generator is formed from a plurality of plates having a body including a pair of opposed cylindrical surfaces. Non-cylindrical ditches are defined circumferentially intermediate the pair of cylindrical surfaces. A plurality of passages are formed in an outer periphery of the cylindrical surfaces including relatively large holes extending through a slot to the outer periphery. Grooves are formed intermediate the relatively large holes.
    Type: Application
    Filed: March 2, 2020
    Publication date: September 24, 2020
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, JR.
  • Publication number: 20200295625
    Abstract: A rotary electric machine includes a stator with a stator winding, a rotor with a field winding supported for rotation about a rotation axis relative to the stator, and an excitation winding. The excitation winding is fixed relative to the rotor and is electrically connected to the field winding. The rotor defines a coolant channel having an inlet and an outlet. Liquid coolant enters the inlet and flows outwardly through a portion of the excitation winding to conduct heat away from the excitation winding. Generators, aircraft electrical systems, and methods of cooling rotary electric machines are also described.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 17, 2020
    Inventors: Glenn C. Lemmers, JR., Brady A. Manogue
  • Publication number: 20200291863
    Abstract: A gear shroud arrangement includes a plate defining an aperture therethrough. A riser tube has a first end and an opposed second end. The first end of the riser tube is connected to the plate and is aligned with the aperture. A mounting flange extends from the second end of the riser tube. A shroud member extends from the plate in a direction opposite the riser tube.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 17, 2020
    Inventors: Glenn C. Lemmers, JR., Derek R. Hochstetler
  • Publication number: 20200289965
    Abstract: An oil filter assembly for an integrated drive generator is disclosed, which includes an elongated cylindrical filter element having opposed upper and lower end portions, a longitudinal axis, an outer diameter and an inner diameter, wherein the oil filter assembly that includes the filter element has an axial length that is greater than 4.60 inches.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 17, 2020
    Inventors: Derek R. Hochstetler, Glenn C. Lemmers, JR.
  • Publication number: 20200291836
    Abstract: A cover for an oil filter housing is disclosed comprising an elongated body defining an upper end portion and an lower end portion, and having a central axis extending therethrough, which delineates an axial length of the body, wherein an axial bore extends through the body of the cover from the lower end portion thereof to an interior end wall in the upper end portion thereof for accommodating an axial portion of an oil filter located within the housing, the axial bore of the body having an axial length that is about 90% to about 94% of the axial length of the body.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 17, 2020
    Inventors: Glenn C. Lemmers, JR., Derek R. Hochstetler
  • Publication number: 20200292056
    Abstract: A gear shroud arrangement includes a mounting plate defining an aperture therethrough. A first cylindrical shroud is included having a first end and an opposed second end, wherein the first end of the first shroud is connected to an outer periphery of the mounting plate and is aligned with the aperture. A backing plate is mounted to the second end of the first shroud. A second cylindrical shroud extends from the backing plate in a direction opposite the first shroud.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 17, 2020
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Glenn C. Lemmers, JR., Derek R. Hochstetler
  • Publication number: 20200291864
    Abstract: A gear shroud arrangement includes a plate defining an aperture therethrough. A riser tube has a first end and an opposed second end. The first end of the riser tube is connected to the plate and is aligned with the aperture. A mounting flange extends from the second end of the riser tube. A shroud member extends from the plate in a direction opposite the riser tube.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 17, 2020
    Inventors: Glenn C. Lemmers, JR., Derek R. Hochstetler
  • Publication number: 20200292069
    Abstract: A gear shroud arrangement includes a mounting plate defining an aperture therethrough. A first cylindrical shroud is included having a first end and an opposed second end, wherein the first end of the first shroud is connected to an outer periphery of the mounting plate and is aligned with the aperture. A backing plate is mounted to the second end of the first shroud. A second cylindrical shroud extends from the backing plate in a direction opposite the first shroud.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 17, 2020
    Inventors: Glenn C. Lemmers, JR., Derek R. Hochstetler
  • Patent number: 10760665
    Abstract: A governor drive gear for use in an integrated drive generator has a gear body extending between a first end and a second end and having a disc extending radially outwardly. A boss extends from the disc toward the second end. There are outer gear teeth outwardly of an outer diameter of the disc. The outer gear teeth have a unique gear tooth profile with roll angles A, B, C, and D. An integrated drive generator and a method are also disclosed.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: September 1, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, Jr.
  • Patent number: 10763722
    Abstract: A terminal block for use in an integrated drive generator has a body having an outer support surface and extending to an inner surface. There are four connection channels for supporting electric connections for each of three phases of power and a neutral. There are fingers formed between adjacent ones of each of the four connection channels, with the fingers extending away from the support surface in a direction away from the inner surface. An integrated drive generator and a method are also disclosed.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: September 1, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, Jr.
  • Publication number: 20200271239
    Abstract: A flyweight system includes a base defining a through-bore for connection to a flyweight governor. The base defines a track therein. A magnet is seated in the track of the base. A tab is mounted to the base, sandwiching the magnet between the base and the tab to retain the magnet in the track.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 27, 2020
    Inventor: Glenn C. Lemmers, Jr.
  • Patent number: 10718418
    Abstract: A method of driving an integrated drive generator is provided. The method includes driving a carrier shaft of an epicyclic differential and a variable component of a hydraulic trimming device that is operably coupled to a sun gear of the epicyclic differential. The method also includes driving a generator with an output ring gear that is maintained at a constant output frequency. The method further includes maintaining the constant output frequency by controllably manipulating the speed of the sun gear that is in operable communication with the output ring gear.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 21, 2020
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Andrew P. Grosskopf, Glenn C. Lemmers, Jr.
  • Patent number: 10707727
    Abstract: A stator sleeve for use in an integrated drive generator has a body extending between a first end and a second end and has a generally cylindrical inner peripheral surface. An outer peripheral surface has a plurality of circumferentially extending ribs define intermediate oil cooling channels. An integrated drive generator and a method are also disclosed.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: July 7, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, Jr.
  • Patent number: 10707792
    Abstract: A variable wobbler plate has a stub shaft and a pivot shaft. The pivot shaft has a smaller diameter portion and a larger diameter portion. The smaller diameter portion has a generally cylindrical outer periphery with a flat over a limited circumferential extent and a diameter to opposed portions of the generally cylindrical portion defining a first distance. A second distance is defined from an end of the smaller diameter portion spaced furthest from the stub shaft to an end of the larger diameter portion spaced closest to the stub shaft and measured along a central axis of the pivot shaft and defines a second distance. A ratio of the first distance to the second distance is between 0.60 and 0.75. An integrated drive generator and a method are also disclosed.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: July 7, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, Jr.
  • Patent number: 10670126
    Abstract: A variable block shaft has a radially enlarged disc formed at a first end. A shaft portion extends from the disc to a second end. An inner bearing race surface is defined intermediate the first and second end and has an outer peripheral surface. An axial length of the inner bearing race surface is defined between inner facing surfaces of lands at each axial side. The axial distance is measured along the center axis of the body and an outer diameter to the inner bearing race surface being defined as a first distance. The axial length of the inner bearing race surface is defined as a second distance and a ratio of the first distance to the second distance being between 3.75 and 3.90. An integrated drive generator and a method are also disclosed.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: June 2, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, Jr.
  • Patent number: 10641344
    Abstract: A disconnect plunger for use in an integrated drive generator includes a plunger body extending between a first end and a second end. A cam surface is formed on the second end, and has a cylindrical cam portion extending across the second end. The cylindrical cam portion has a location formed at a radius about a point spaced beyond the second end relative to the first end. A first distance is defined from a second end facing surface of a cylindrical guide portion positioned intermediate first and second end. A ratio of the first radius to the first distance is between 0.15 and 0.30. The point is spaced in a direction perpendicular to a center axis of the plunger body, and measured from the center axis by a second distance. A ratio of the second distance to the first radius is between 0.25 and 0.40. An integrated drive generator and a method of replacing a disconnect shaft are also disclosed.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: May 5, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, Jr.
  • Patent number: 10644563
    Abstract: A terminal lead assembly for use in an integrated drive generator has a body formed of a lead portion and a support portion. The lead portion is received within an aperture in the support portion. The support portion has an outer periphery defined within a plane extending perpendicularly to a central axis of the lead portion. The outer periphery includes two curved portions and straight side portions extending parallel to each other and connecting the curved portions. An integrated drive generator and a method are also disclosed.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: May 5, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, Jr.
  • Patent number: 10634063
    Abstract: An input drive shaft for use in an integrated drive generator has a body extending from an end to a clutch face. The clutch face includes a plurality of clutch teeth extending away from a nominal surface of the body. The clutch face defines an inner bore of a first diameter. The clutch face has an outer peripheral surface defining a second diameter and a ratio of the first diameter to the second diameter is between 1.50 and 1.65. An integrated drive generator and a method are also disclosed.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: April 28, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, Jr.
  • Publication number: 20200112222
    Abstract: A sealing assembly of an input shaft includes a support structure, a bearing assembly, and an input seal. The input seal including an input seal housing having a first portion and a second portion. The first portion is arranged adjacent the bearing assembly. At least one face plate anti-rotation pin is coupled to the input seal housing and positioned adjacent the input shaft. A face plate is positioned adjacent the second portion. The face plate is configured to directly contact the input shaft.
    Type: Application
    Filed: October 9, 2018
    Publication date: April 9, 2020
    Inventors: Glenn C. Lemmers, JR., David S. Behling, Erika M. Danckers