Patents by Inventor Mark J. Franklin
Mark J. Franklin 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: 20200224727Abstract: A retaining ring configured to retain a shaft to a sleeve to fix the shaft rotationally and axially to the sleeve can include a first portion configured to install around the shaft and within the sleeve. The first portion can include one or more first curved sections and at least one first portion flat. The retaining ring can include a second portion configured to install around the shaft and moveable relative to the first portion, the second portion comprising one or more second curved sections and at least one second portion flat. The first portion flat can be defined between a plurality of the first curved sections, and wherein the second portion flat can be defined between a plurality of the second curved sections, for example.Type: ApplicationFiled: January 14, 2019Publication date: July 16, 2020Inventors: Aaron M. Finke, Stephen Michael Bortoli, Mark J. Franklin
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Publication number: 20200217370Abstract: A system is disclosed for axially retaining two coaxial components, which includes an inner component having an annular compression groove formed in a radially outer surface thereof, an outer component having an annular engagement groove formed in a radially inner surface thereof, and a split retaining ring installed in the annular compression groove of the inner component, wherein the split retaining ring is adapted for movement between a radially compressed condition to facilitate axial engagement of the inner component within the outer component and a radially expanded condition to facilitate radial engagement of the split retaining ring in the annular engagement groove of the outer component, so that the inner and outer components are axially locked together.Type: ApplicationFiled: January 8, 2019Publication date: July 9, 2020Inventors: Aaron M. Finke, Stephen Michael Bortoli, Mark J. Franklin
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Patent number: 10228013Abstract: 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: GrantFiled: October 6, 2016Date of Patent: March 12, 2019Assignee: HAMILTON SUNDSTAND CORPORATIONInventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Mark J. Franklin
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Patent number: 9893584Abstract: An end winding support for an electric generator includes a pair of winding lead supports formed on opposite sides of a winding slot and separated by an upper slot width. Each of the winding lead supports includes a winding channel routed between a lead coupling port and the winding slot. The winding slot includes a base support and a pair of alignment members that define a transition between the base support and the winding lead supports. A lower slot width is defined along the base support between the alignment members and a ratio of the upper slot width to the lower slot width is between 1.024 and 1.053.Type: GrantFiled: June 24, 2015Date of Patent: February 13, 2018Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Andreas C. Koenig, Mark J. Franklin, David Pfaffinger
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Patent number: 9719499Abstract: A slipper retainer ball of a hydraulic unit having an aperture passing through a body, the body having a flat bottom surface, a flat top surface, an external curved surface, and an interior profiled surface that extends in an axial direction from the bottom surface to the top surface. The interior profiled surface includes a first surface extending parallel to the axis from the bottom surface in the axial direction, a second surface extending perpendicular to the axis from the first surface and outward toward the external curved surface, a third surface extending from the second surface axially at a first angle, a fourth surface extending from the third surface in the axial direction, and a fifth surface extending from the fourth surface to the top surface at a second angle that is skew from the axis. The axial thickness of the body is about 0.471 inches.Type: GrantFiled: January 16, 2015Date of Patent: August 1, 2017Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Mark J. Franklin
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Patent number: 9714702Abstract: A variable coaxial shaft for a hydraulic unit includes a shaft body having a variable input shaft interface to drive rotation of a variable input shaft of the hydraulic unit. The variable coaxial shaft also includes a differential assembly interface having a first sealing interface, a second sealing interface, and one or more lubrication ports between the first sealing interface and the second sealing interface. The differential assembly interface is configured to be driven by a differential assembly. The one or more lubrication ports provide a lubrication path to the differential assembly. A shaft length is defined between a first end of the variable input shaft interface and a second end of the differential assembly interface. A ratio of the shaft length to a shaft diameter of the shaft body is between 18.65 and 19.12.Type: GrantFiled: March 20, 2015Date of Patent: July 25, 2017Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Mark J. Franklin
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Publication number: 20170023053Abstract: A fixed shaft of a hydraulic unit is provided including a body having a first end and a second opposite end. A first flange and a substantially identical second flange are integrally formed with the body of the shaft adjacent the second end. The second end of the body has an outer diameter of 0.990±0.005 inches (2.515±0127 cm). The first and second flange each have an axial length parallel to a longitudinal axis of the body of about 0.085±0.010 inches (0.216±0.0254 cm). The first and second flange having an outer diameter of 1.359 inches (3.452 cm). The first flange and the second flange are separated by from one another by a distance of about 0.3162 inches (0.8031 cm). The portion of the body between the first flange and the second flange has an outer diameter of about 1.2013 inches (3.051 cm).Type: ApplicationFiled: October 6, 2016Publication date: January 26, 2017Inventors: Kris H. Campbell, Glenn C. Lemmers, JR., Mark J. Franklin
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Publication number: 20160380501Abstract: An end winding support for an electric generator includes a pair of winding lead supports formed on opposite sides of a winding slot and separated by an upper slot width. Each of the winding lead supports includes a winding channel routed between a lead coupling port and the winding slot. The winding slot includes a base support and a pair of alignment members that define a transition between the base support and the winding lead supports. A lower slot width is defined along the base support between the alignment members and a ratio of the upper slot width to the lower slot width is between 1.024 and 1.053.Type: ApplicationFiled: June 24, 2015Publication date: December 29, 2016Inventors: Andreas C. Koenig, Mark J. Franklin, David Pfaffinger
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Patent number: 9488215Abstract: A fixed shaft of a hydraulic unit is provided including a body having a first end and a second opposite end. A first flange and a substantially identical second flange are integrally formed with the body of the shaft adjacent the second end. The second end of the body has an outer diameter of 0.990±0.005 inches (2.515±0127 cm). The first and second flange each have an axial length parallel to a longitudinal axis of the body of about 0.085±0.010 inches (0.216±0.0254 cm). The first and second flange having an outer diameter of 1.359 inches (3.452 cm). The first flange and the second flange are separated by from one another by a distance of about 0.3162 inches (0.8031 cm). The portion of the body between the first flange and the second flange has an outer diameter of about 1.2013 inches (3.051 cm).Type: GrantFiled: November 24, 2014Date of Patent: November 8, 2016Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Mark J. Franklin
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Patent number: 9482265Abstract: A variable shaft of a hydraulic unit is provided including a body having a first end and a second opposite end. A first flange and a substantially identical second flange are integrally formed with the body of the shaft adjacent the second end. The first flange and the second flange each have an axial length parallel to a longitudinal axis of the body of about 0.085±0.010 inches (0.216±0.0254 cm). The first flange and the second flange have an outer diameter of 1.359 inches (3.452 cm). The first flange and the second flange are separated by from one another by a distance of about 0.3162 inches (0.8031 cm). A portion of the body between the first flange and the second flange has an outer diameter of about 1.2013 inches (3.051 cm).Type: GrantFiled: November 24, 2014Date of Patent: November 1, 2016Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Kris H. Campbell, Glenn C. Lemmers, Jr., Mark J. Franklin
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Publication number: 20160281691Abstract: A piston and slipper assembly of a hydraulic unit includes a slipper and a piston. The slipper includes a swashplate interface having a balance land and a piston ball socket extending to a ball engagement end, where a slipper length is defined between the balance land and the ball engagement end. The piston includes a piston ball member having a ball and a piston body. The ball engages with the piston ball socket. The piston body is coaxially fixed within a piston sleeve. The piston sleeve defines a piston diameter, and a piston length is defined between a centroid of the ball and a piston end face. A ratio of the piston diameter to the slipper length is between 1.35 and 1.42, and a ratio of the piston length to the piston diameter is between 2.51 and 2.55.Type: ApplicationFiled: March 25, 2015Publication date: September 29, 2016Inventors: Kris H. Campbell, Glenn C. Lemmers, JR., Doren C. Smith, Mark J. Franklin
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Publication number: 20160273645Abstract: A variable coaxial shaft for a hydraulic unit includes a shaft body having a variable input shaft interface to drive rotation of a variable input shaft of the hydraulic unit. The variable coaxial shaft also includes a differential assembly interface having a first sealing interface, a second sealing interface, and one or more lubrication ports between the first sealing interface and the second sealing interface. The differential assembly interface is configured to be driven by a differential assembly. The one or more lubrication ports provide a lubrication path to the differential assembly. A shaft length is defined between a first end of the variable input shaft interface and a second end of the differential assembly interface. A ratio of the shaft length to a shaft diameter of the shaft body is between 18.65 and 19.12.Type: ApplicationFiled: March 20, 2015Publication date: September 22, 2016Inventors: Kris H. Campbell, Glenn C. Lemmers, JR., Mark J. Franklin
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Publication number: 20160273531Abstract: A cylinder block assembly of a hydraulic unit includes a cylinder block having a plurality of piston bores arranged circumferentially about a central axis of the cylinder block assembly and extending through a first face of the cylinder block. Each of the piston bores has a pitch diameter defined radially with respect to the central axis of the cylinder block assembly. A second face of the cylinder block has pressure ports that extend from the piston bores. The cylinder block assembly further includes a balance plate coupled to the second face of the cylinder block. The balance plate includes apertures that align with the pressure ports, where a cylinder block assembly outer length is defined between the first face of the cylinder block and an outer face of the balance plate. A ratio of the pitch diameter to the cylinder block assembly outer length is between 1.24 and 1.27.Type: ApplicationFiled: March 18, 2015Publication date: September 22, 2016Inventors: Kris H. Campbell, Glenn C. Lemmers, JR., Mark J. Franklin
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Publication number: 20160208785Abstract: A slipper retainer ball of a hydraulic unit having an aperture passing through a body, the body having a flat bottom surface, a flat top surface, an external curved surface, and an interior profiled surface that extends in an axial direction from the bottom surface to the top surface. The interior profiled surface includes a first surface extending parallel to the axis from the bottom surface in the axial direction, a second surface extending perpendicular to the axis from the first surface and outward toward the external curved surface, a third surface extending from the second surface axially at a first angle, a fourth surface extending from the third surface in the axial direction, and a fifth surface extending from the fourth surface to the top surface at a second angle that is skew from the axis. The axial thickness of the body is about 0.471 inches.Type: ApplicationFiled: January 16, 2015Publication date: July 21, 2016Inventors: Kris H. Campbell, Glenn C. Lemmers, JR., Mark J. Franklin
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Publication number: 20160146243Abstract: A fixed shaft of a hydraulic unit is provided including a body having a first end and a second opposite end. A first flange and a substantially identical second flange are integrally formed with the body of the shaft adjacent the second end. The second end of the body has an outer diameter of 0.990±0.005 inches (2.515±0127 cm). The first and second flange each have an axial length parallel to a longitudinal axis of the body of about 0.085±0.010 inches (0.216±0.0254 cm). The first and second flange having an outer diameter of 1.359 inches (3.452 cm). The first flange and the second flange are separated by from one another by a distance of about 0.3162 inches (0.8031 cm). The portion of the body between the first flange and the second flange has an outer diameter of about 1.2013 inches (3.051 cm).Type: ApplicationFiled: November 24, 2014Publication date: May 26, 2016Inventors: Kris H. Campbell, Glenn C. Lemmers, JR., Mark J. Franklin
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Publication number: 20160146244Abstract: A variable shaft of a hydraulic unit is provided including a body having a first end and a second opposite end. A first flange and a substantially identical second flange are integrally formed with the body of the shaft adjacent the second end. The first flange and the second flange each have an axial length parallel to a longitudinal axis of the body of about 0.085±0.010 inches (0.216±0.0254 cm). The first flange and the second flange have an outer diameter of 1.359 inches (3.452 cm). The first flange and the second flange are separated by from one another by a distance of about 0.3162 inches (0.8031 cm). A portion of the body between the first flange and the second flange has an outer diameter of about 1.2013 inches (3.051 cm).Type: ApplicationFiled: November 24, 2014Publication date: May 26, 2016Inventors: Kris H. Campbell, Glenn C. Lemmers, JR., Mark J. Franklin
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Patent number: 9312742Abstract: An assembly includes a resistor pack, a first spring clip, and a first rigid connector. The resistor pack has a first clip-shaped cavity therein. The first spring clip is disposed within the first clip-shaped cavity and the first connector is abutted by opposing portions of the first spring clip.Type: GrantFiled: March 1, 2013Date of Patent: April 12, 2016Assignee: Hamilton Sundstrand CorporationInventors: Andrew P. Grosskopf, Mark J. Franklin
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Patent number: 9154046Abstract: A rectifier assembly and method are provided. The rectifier assembly includes an annular bus bar including an electrically conductive material, and an insulator ring receiving the annular bus bar. The insulator ring defines radially-extending resistor pockets and diode pockets therein. The rectifier assembly also includes resistors disposed in the resistor pockets and electrically connected with the annular bus bar, and diodes disposed in the diode pockets and electrically connected with the annular bus bar. The rectifier assembly also includes an outer housing receiving the annular bus bar and the insulator ring, such that the insulator ring is positioned radially between the annular bus bar and the outer housing.Type: GrantFiled: February 22, 2013Date of Patent: October 6, 2015Assignee: HAMILTON SUNSTRAND CORPORATIONInventors: Joseph Paul Krause, Dhaval Patel, Glenn C. Lemmers, Jr., Mark J. Franklin
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Patent number: 8890379Abstract: A rectifier assembly and method are provided. The rectifier assembly includes a cover comprising a flange having an annular channel extending around an outer circumference of the flange, an annular bus bar, an insulator ring, and an outer housing for receiving the insulator ring, the annular bus bar and the outer housing. A snap ring is positioned within the annular channel of the outer circumference of the flange, wherein an outer circumference of the snap ring is located within a snap ring retention channel located around an inner diameter of the outer housing to retain the cover, the annular bus bar, and the insulator ring within the outer housing.Type: GrantFiled: September 30, 2013Date of Patent: November 18, 2014Assignee: Hamilton Sundstrand CorporationInventors: Joseph Paul Krause, Dhaval Patel, Glenn C. Lemmers, Mark J. Franklin
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Publication number: 20140246957Abstract: An assembly includes a resistor pack, a first spring clip, and a first rigid connector. The resistor pack has a first clip-shaped cavity therein. The first spring clip is disposed within the first clip-shaped cavity and the first connector is abutted by opposing portions of the first spring clip.Type: ApplicationFiled: March 1, 2013Publication date: September 4, 2014Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Andrew P. Grosskopf, Mark J. Franklin