Patents by Inventor Hemant S. Suthar

Hemant S. Suthar 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).

  • Two-speed transfer case with ball-ramp clutch and single motor activator/shift system
    Patent number: 6966864
    Abstract: A transfer case is provided with a range unit, an interaxle differential, a clutch assembly and a power-operated actuation mechanism. The range unit includes a planetary gearset driven by an input shaft, and a synchronized dog clutch assembly for releasably coupling one of the input shaft or an output component of the planetary gearset to an input member of the interaxle differential. The interaxle differential further includes a first output member driving a first output shaft, a second output member operably driving a second output shaft. The clutch assembly is a multi-plate friction clutch operably disposed between the first and second output shafts. The power-operated actuation mechanism includes a range actuator assembly, a ball-ramp clutch actuator assembly and a motor assembly operable to control actuation of the range actuator assembly and the clutch actuator assembly.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: November 22, 2005
    Assignee: Magna Drivetrain of America, Inc.
    Inventors: Randolph C. Williams, Hemant S. Suthar, Aaron Ronk
  • Transfer case for four-wheel drive vehicle
    Patent number: 6824487
    Abstract: A transfer case is provided with a range unit, an interaxle differential, a clutch assembly and a power-operated actuation mechanism. The range unit includes a planetary gearset driven by an input shaft, and a synchronized dog clutch assembly for releasably coupling one of the input shaft or an output component of the planetary gearset to an input member of the interaxle differential. The interaxle differential further includes a first output member driving a first output shaft, a second output member operably driving a second output shaft. The clutch assembly is a multi-plate friction clutch operably disposed between the first and second output shafts. The power-operated actuation mechanism includes a range actuator assembly, a ball-ramp clutch actuator assembly and a motor assembly operable to control actuation of the range actuator assembly and the clutch actuator assembly.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: November 30, 2004
    Assignee: New Venture Gear, Inc.
    Inventors: Randolph C. Williams, Hemant S. Suthar, Aaron Ronk
  • Transfer case for four-wheel drive vehicle
    Publication number: 20040069509
    Abstract: A transfer case is provided with a range unit, an interaxle differential, a clutch assembly and a power-operated actuation mechanism. The range unit includes a planetary gearset driven by an input shaft, and a synchronized dog clutch assembly for releasably coupling one of the input shaft or an output component of the planetary gearset to an input member of the interaxle differential. The interaxle differential further includes a first output member driving a first output shaft, a second output member operably driving a second output shaft. The clutch assembly is a multi-plate friction clutch operably disposed between the first and second output shafts. The power-operated actuation mechanism includes a range actuator assembly, a ball-ramp clutch actuator assembly and a motor assembly operable to control actuation of the range actuator assembly and the clutch actuator assembly.
    Type: Application
    Filed: July 30, 2003
    Publication date: April 15, 2004
    Inventors: Randolph C. Williams, Hemant S. Suthar, Aaron Ronk
  • Two-speed transfer case with ball-ramp clutch and single motor activator/shift system
    Patent number: 6645109
    Abstract: A transfer case is provided with a range unit, an interaxle differential, a clutch assembly and a power-operated actuation mechanism. The range unit includes a planetary gearset driven by an input shaft, and a synchronized dog clutch assembly for releasably coupling one of the input shaft or an output component of the planetary gearset to an input member of the interaxle differential. The interaxle differential further includes a first output member driving a first output shaft, a second output member operably driving a second output shaft. The clutch assembly is a multi-plate friction clutch operably disposed between the first and second output shafts. The power-operated actuation mechanism includes a range actuator assembly, a ball-ramp clutch actuator assembly and a motor assembly operable to control actuation of the range actuator assembly and the clutch actuator assembly.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: November 11, 2003
    Assignee: New Venture Gear, Inc.
    Inventors: Randolph C. Williams, Hemant S. Suthar, Aaron Ronk
  • Two-speed transfer case with ball-ramp clutch and single motor activator/shift system
    Publication number: 20020142877
    Abstract: A transfer case is provided with a range unit, an interaxle differential, a clutch assembly and a power-operated actuation mechanism. The range unit includes a planetary gearset driven by an input shaft, and a synchronized dog clutch assembly for releasably coupling one of the input shaft or an output component of the planetary gearset to an input member of the interaxle differential. The interaxle differential further includes a first output member driving a first output shaft, a second output member operably driving a second output shaft. The clutch assembly is a multi-plate friction clutch operably disposed between the first and second output shafts. The power-operated actuation mechanism includes a range actuator assembly, a ball-ramp clutch actuator assembly and a motor assembly operable to control actuation of the range actuator assembly and the clutch actuator assembly.
    Type: Application
    Filed: February 22, 2002
    Publication date: October 3, 2002
    Inventors: Randolph C. Williams, Hemant S. Suthar, Aaron Ronk