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).

  • TERMINAL BLOCK COVER FOR USE IN INTEGRATED DRIVE GENERATOR
    Publication number: 20190157940
    Abstract: A terminal block cover for use in an integrated drive generator has a body having a closed outer face and extending to an open inner face, and having an open side and a closed side. There are four connection channels for receiving electric connections for each of three phases of power and a neutral, and they extend from the closed side to the open side. There are spacing channels formed between adjacent ones of each of the four connection channels, with the spacing channels being formed by two spaced ribs with an interior space. An integrated drive generator and a method are also disclosed.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 23, 2019
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, JR.
  • GOVERNOR AND INVERSION PUMP DRIVE GEAR
    Publication number: 20190146526
    Abstract: A governor and inversion pump drive gear for an integrated drive generator has a gear body extending from a first end to a second end. There is an enlarged disc between the first and second ends. A boss extends from the enlarged disc toward the second end and has an internal bore with spline teeth. The enlarged disc has input gear teeth at an outer periphery. A shaft portion extends from the disc to the first end. A flange is formed at a location intermediate the first end and the enlarged disc. The inner gear teeth and the drive gear teeth have unique tooth profiles. An integrated dive generator and a method are also disclosed.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 16, 2019
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, JR.
  • SCAVENGE/CHARGE PUMP DRIVE GEAR FOR INTEGRATED DRIVE GENERATOR
    Publication number: 20190145406
    Abstract: A scavenge/charge pump 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: Application
    Filed: November 15, 2017
    Publication date: May 16, 2019
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, JR.
  • PUMP SLEEVE FOR INTEGRATED DRIVE GENERATOR
    Publication number: 20190145410
    Abstract: A pump sleeve for an inversion pump in an integrated drive generator has a pump sleeve body extending between a first end and a second end, the first end being at a location adjacent an enlarged endplate. The body extends to the second end with a generally cylindrical body portion having a bore of an inner diameter from the first end to the second end, and between the first and second ends for a distance. A ratio of the first distance to the inner diameter being is 1.8 and 2.0. In addition, an integrated drive generator is disclosed as is a method of replacing an accessory drive gear in an integrated drive generator.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 16, 2019
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, JR.
  • Fixed wobbler for hydraulic unit
    Patent number: 10273990
    Abstract: 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: Grant
    Filed: January 14, 2015
    Date of Patent: April 30, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Doren C. Smith, Jonathan C. Dell, Jong-Yeong Yung, Ted A. Martin
  • Hydraulic unit
    Patent number: 10228013
    Abstract: A hydraulic unit includes a housing, a pump located in the housing, and a motor located in the housing and operably connected to the pump such that the motor is driven in response to fluid pressure delivered to the motor from the pump. An output shaft is operably connected to and driven by the motor and includes a body having a first end and a second opposite end, and a first flange and a substantially identical second flange integrally formed with the body of the shaft adjacent the second end. A relief is formed about a circumference of the body. A plurality of first splines are integrally formed with an exterior of the body between the second portion and the third portion, and a plurality of second splines are integrally formed with an interior surface of the body adjacent the second end.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: March 12, 2019
    Assignee: HAMILTON SUNDSTAND CORPORATION
    Inventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Mark J. Franklin
  • ELECTRICAL TERMINAL DEVICE
    Publication number: 20190067840
    Abstract: An electrical terminal device adapted to mount to a structure, and including a electrically non-conductive substructure, an electrically non-conductive cover, a heat resistant shroud, and an electric terminal. The substructure is in contact with the structure. The cover is engaged to the substructure. The substructure and the cover define a chamber, and the substructure defines, at least in-part, a sealed passage in communication with the chamber. The heat resistant shroud substantially covers the cover. The cover is substantially located between the shroud and the substructure. The electric terminal is located in the chamber and is attached to the substructure.
    Type: Application
    Filed: August 29, 2017
    Publication date: February 28, 2019
    Inventors: David S. Behling, Glenn C. Lemmers, JR., Dhaval Patel, Alan Kasner, Douglas J. Turner
  • GENERATOR ARRANGEMENTS AND METHODS OF CONTROLLING GENERATOR ARRANGEMENTS
    Publication number: 20180269817
    Abstract: A generator arrangement includes a stator with armature winding, a rotor with one or more permanent magnets supported for rotation relative to the stator, a variable speed drive, and a control module. The variable speed drive is connected to the rotor for rotating the rotor within a predetermined speed range. The control module is disposed in communication with the armature windings and is operatively connected to the variable speed drive to maintain constant output voltage as load changes by varying rotational speed of the rotor.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 20, 2018
    Inventors: Dhaval Patel, Jonathan C. Dell, Andreas C. Koenig, Glenn C. Lemmers, JR.
  • INTEGRATED DRIVE GENERATOR HAVING A VARIABLE INPUT SPEED AND CONSTANT OUTPUT FREQUENCY AND METHOD OF DRIVING
    Publication number: 20180266532
    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: Application
    Filed: May 22, 2018
    Publication date: September 20, 2018
    Inventors: Andrew P. Grosskopf, Glenn C. Lemmers, JR.
  • Venting generator assemblies
    Patent number: 10056805
    Abstract: A generator assembly includes a generator shaft defining an interior vent space. A valve assembly is positioned within the vent space configured to selectively allow venting of air through the generator shaft. A radial vent is positioned within the valve assembly configured to prevent oil from flowing through the vent space during operation and release air through the vent space during shutdown.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: August 21, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventors: David S. Behling, Glenn C. Lemmers, Jr.
  • LOW SPEED SPOOL GENERATOR TRANSMISSION
    Publication number: 20180209513
    Abstract: A low speed spool multispeed transmission includes an input shaft configured to connect to a low pressure spool gearbox, a gear system connected to the input shaft and configured to convert an input speed of the input shaft to an output speed within a predetermined speed range, wherein the gear system includes a plurality of gear states to change the ratio between the input speed and the output speed, and an output shaft connected to the gear system to be rotated by the gear system at the output speed, the output shaft configured to connect to a generator. The input shaft and the output shaft can be coaxial.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 26, 2018
    Inventor: Glenn C. Lemmers, JR.
  • Input driven gear for a differential
    Patent number: 10024413
    Abstract: 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: Grant
    Filed: April 3, 2015
    Date of Patent: July 17, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Glenn C. Lemmers, Jr., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
  • Integrated drive generator having a variable input speed and constant output frequency and method of driving
    Patent number: 9989138
    Abstract: An integrated drive generator having a variable input speed and constant output frequency, where the integrated drive generator includes a generator disposed about a first centerline. Also included is a hydraulic trimming device disposed about a second centerline. Further included is an epicyclic differential having a ring gear and a sun gear, wherein at least one of the ring gear and the sun gear drives the generator at a constant output frequency, wherein the epicyclic differential is disposed about a third centerline, wherein the third centerline is coaxial with the second centerline.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: June 5, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Andrew P. Grosskopf, Glenn C. Lemmers, Jr.
  • Bearing liners for use within light alloy housings
    Patent number: 9874245
    Abstract: A device with a rotating element includes a housing body formed from a light alloy, wherein the housing body has a housing body thermal expansion coefficient, a bearing liner formed from a liner material disposed within the housing body, wherein the bearing liner has a bearing liner thermal expansion coefficient, and a bearing to support the rotating element with an outer race, wherein the bearing has a bearing thermal expansion coefficient, the outer race is press fit within the bearing liner, and the bearing liner thermal expansion coefficient is lower than the bearing thermal expansion coefficient.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: January 23, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Glenn C. Lemmers, Jr., Andrew P. Grosskopf
  • Slipper retainer for hydraulic unit
    Patent number: 9863408
    Abstract: 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: Grant
    Filed: January 16, 2015
    Date of Patent: January 9, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Doren C. Smith
  • Pressure-regulating valves
    Patent number: 9863544
    Abstract: A pressure-regulating valve assembly includes a sleeve body and a spool. The sleeve body has an interior surface and a sense port. The spool has an external surface and is slideably received within the sleeve body such that the external spool surface and the sleeve body interior surface define therebetween a plurality of sleeve body chambers. A first of the sleeve body interior chambers is a deadheaded chamber in fluid communication with the environment external to the sleeve body through the sense port for controlling pressure of fluid traversing the pressure-regulating valve assembly.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: January 9, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Glenn C. Lemmers, Jr.
  • Port plate assembly for hydraulic unit
    Patent number: 9845679
    Abstract: 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: Grant
    Filed: March 18, 2015
    Date of Patent: December 19, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Doren C. Smith
  • Valve assembly for variable frequency generator and method of sealing
    Patent number: 9784380
    Abstract: A valve assembly for a variable frequency generator includes an input shaft extending about a longitudinal axis and having a bore defined therein. Also included is a disconnect shaft extending about the longitudinal axis and disposed in abutment with the input shaft. Further included is an oil restrictor disposed with the bore of the input shaft. Yet further included is a vent valve disposed within the bore and in abutment with the oil restrictor, the vent valve comprising an angled wall, the angled wall partially defining an annulus. Also included is a plurality of ball bearings disposed within the annulus, the plurality of ball bearings sliding radially outwardly away from the longitudinal axis during rotational operation of the input shaft to apply a force on the angled wall of the vent valve to bias the vent valve axially into a sealed condition.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: October 10, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Glenn C. Lemmers, Jr.
  • Planet gear for an integrated drive generator
    Patent number: 9759305
    Abstract: 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: Grant
    Filed: April 2, 2015
    Date of Patent: September 12, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Glenn C. Lemmers, Jr., Aaron M. Finke, Doren C. Smith, Andrew P. Grosskopf, David S. Behling
  • High speed rotor connection support
    Patent number: 9755472
    Abstract: A rotor connection support comprising a main connection ring configured to reduce the moment load on fastener locations (such as threaded fastener locations) by integrating stand-off posts into a high strength plate are discussed herein. These stand-offs may be configured to reduce the stresses on the high stress concentration/low cross section threads. Also, included is an improved wire routing and wire support configured to maximize the fatigue cycles of the main field lead wires.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: September 5, 2017
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Timothy R. Welch, Brian C. Konopa, Glenn C. Lemmers, Jr., Luke Wagner