Patents by Inventor Daniel D. Carmean

Daniel D. Carmean 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).

  • Patent number: 11428303
    Abstract: Methods and systems for a locking mechanism in an inter-axle differential are provided. A vehicle system, in one example, includes an electric motor coupled to a clutch assembly in a locking mechanism of an inter-axle differential coupled to a first axle and a second axle, the clutch assembly is configured to selectively disengage the locking mechanism, and in the disengaged configuration the locking mechanism permits speed differentiation between the first and second axles. The system further includes an electric motor brake coupled to the electric motor and configured to selectively apply a brake torque to the electric motor and the electric motor is configured to actuate the clutch assembly.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: August 30, 2022
    Assignee: Dana Heavy Vehicle Systems Group, LLC
    Inventors: Brian Knapke, Patrick F. Rose, Benjamin J. Passino, Daniel D. Carmean
  • Patent number: 11391370
    Abstract: An actuation assembly for use in a drive unit assembly of a vehicle. The actuation assembly includes an actuator shaft that is connected to a shift shaft and a shift fork via a lever member. At least a portion of the lever member is connected to the shift shaft and at least a portion of the lever member is pivotably connected to said actuator shaft. An actuation mechanism drives the actuator shaft linearly to pivot the lever member which in turn rotates the shift shaft and the shift fork.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: July 19, 2022
    Assignee: Dana Heavy Vehicle Systems Group, LLC
    Inventors: Daniel D. Carmean, Robert L. Vailliencourt, William F. Waltz
  • Publication number: 20220090666
    Abstract: Methods and systems for a locking mechanism in an inter-axle differential are provided. A vehicle system, in one example, includes an electric motor coupled to a clutch assembly in a locking mechanism of an inter-axle differential coupled to a first axle and a second axle, the clutch assembly is configured to selectively disengage the locking mechanism, and in the disengaged configuration the locking mechanism permits speed differentiation between the first and second axles. The system further includes an electric motor brake coupled to the electric motor and configured to selectively apply a brake torque to the electric motor and the electric motor is configured to actuate the clutch assembly.
    Type: Application
    Filed: June 16, 2021
    Publication date: March 24, 2022
    Inventors: Brian KNAPKE, Patrick F. ROSE, Benjamin J. PASSINO, Daniel D. CARMEAN
  • Patent number: 11125316
    Abstract: A drive unit assembly having a shroud for use in a vehicle. The drive unit assembly includes a ring gear having an outermost surface, an innermost surface, a first side and a second side. A plurality of ring gear teeth circumferentially extend from at least a portion of the second side of the ring gear of the drive unit assembly. The shroud of the drive unit assembly includes a first shroud member that is integrally connected to at least a portion of a second shroud member. At least a portion of the ring gear is disposed within at least a portion of the shroud of the drive unit assembly.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: September 21, 2021
    Assignee: Dana Heavy Vehicle Systems Group, LLC
    Inventors: Daniel D. Carmean, Benjamin J. Passino, Shane T. Smith
  • Patent number: 11098793
    Abstract: Methods and systems for a locking mechanism in an inter-axle differential are provided. A vehicle system, in one example, includes an electric motor coupled to a clutch assembly in a locking mechanism of an inter-axle differential coupled to a first axle and a second axle, the clutch assembly is configured to selectively disengage the locking mechanism, and in the disengaged configuration the locking mechanism permits speed differentiation between the first and second axles. The system further includes an electric motor brake coupled to the electric motor and configured to selectively apply a brake torque to the electric motor and the electric motor is configured to actuate the clutch assembly.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: August 24, 2021
    Assignee: Dana Heavy Vehicle Systems Group, LLC
    Inventors: Brian Knapke, Patrick F. Rose, Benjamin J. Passino, Daniel D. Carmean
  • Publication number: 20210088122
    Abstract: A drive unit assembly having a shroud for use in a vehicle. The drive unit assembly includes a ring gear having an outermost surface, an innermost surface, a first side and a second side. A plurality of ring gear teeth circumferentially extend from at least a portion of the second side of the ring gear of the drive unit assembly. The shroud of the drive unit assembly includes a first shroud member that is integrally connected to at least a portion of a second shroud member. At least a portion of the ring gear is disposed within at least a portion of the shroud of the drive unit assembly.
    Type: Application
    Filed: March 8, 2019
    Publication date: March 25, 2021
    Applicant: Dana Heavy Vehicle Systems Group, LLC
    Inventors: Daniel D. CARMEAN, Benjamin J. PASSINO, Shane T. SMITH
  • Publication number: 20210071759
    Abstract: An actuation assembly for use in a drive unit assembly of a vehicle. The actuation assembly includes an actuator shaft that is connected to a shift shaft and a shift fork via a lever member. At least a portion of the lever member is connected to the shift shaft and at least a portion of the lever member is pivotably connected to said actuator shaft. An actuation mechanism drives the actuator shaft linearly to pivot the lever member which in turn rotates the shift shaft and the shift fork.
    Type: Application
    Filed: April 12, 2019
    Publication date: March 11, 2021
    Applicant: DANA HEAVY VEHICLE SYSTEMS GROUP, LLC
    Inventors: DANIEL D. CARMEAN, ROBERT L. VAILLIENCOURT, WILLIAM F. WALTZ
  • Patent number: 10605349
    Abstract: An axle assembly includes a carrier housing, a ring gear disposed within the carrier housing, and a pinion meshed with the ring gear. The pinion is coupled with a pinion shaft rotatably supported in the carrier housing by at least one bearing. A sump and a fluid catch are disposed in the carrier housing. A conduit having a regulator is in fluid communication with the fluid catch and the at least one bearing.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: March 31, 2020
    Assignee: Dana Heavy Vehicle Systems Group, LLC
    Inventors: Daniel D. Carmean, Aaron D. Gries, Greg C. Parent, Benjamin J. Passino, Joshua A. Perry, Chris Wurzer
  • Publication number: 20180372209
    Abstract: An axle assembly includes a carrier housing, a ring gear disposed within the carrier housing, and a pinion meshed with the ring gear. The pinion is coupled with a pinion shaft rotatably supported in the carrier housing by at least one bearing. A sump and a fluid catch are disposed in the carrier housing. A conduit having a regulator is in fluid communication with the fluid catch and the at least one bearing.
    Type: Application
    Filed: November 11, 2016
    Publication date: December 27, 2018
    Applicant: DANA HEAVY VEHICLE SYSTEMS GROUP, LLC
    Inventors: DANIEL D. CARMEAN, AARON D. GRIES, GREG C. PARENT, BENJAMIN J. PASSINO, JOSHUA A. PERRY, CHRIS WURZER
  • Patent number: 9546727
    Abstract: An oil feed channel lubricating system including a first upstanding wall, a floor and a portion of an interior wall of a carrier. The channel has a first portion angled at a first angle and a second portion angled at a second angle. The first portion preferably has a shallower angle than the second portion. A gap is located between a top of the first upstanding wall and the interior wall of the carrier.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: January 17, 2017
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Caleb S. Kruger, Scott L. Steward, Jr., Daniel D. Carmean, Edwin O. Swinehart, Jr.
  • Publication number: 20150219204
    Abstract: An oil feed channel lubricating system including a first upstanding wall, a floor and a portion of an interior wall of a carrier. The channel has a first portion angled at a first angle and a second portion angled at a second angle. The first portion preferably has a shallower angle than the second portion. A gap is located between a top of the first upstanding wall and the interior wall of the carrier.
    Type: Application
    Filed: January 27, 2015
    Publication date: August 6, 2015
    Inventors: Caleb S. Kruger, Scott L. Steward, JR., Daniel D. Carmean, Edwin O. Swinehart, JR.