Patents by Inventor Mark James Shewchuck

Mark James Shewchuck 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).

  • Idle-able auxiliary drive system
    Patent number: 8596436
    Abstract: A power transfer unit for a motive device comprises an outer housing, an inner housing, and a torque transferring clutch. A piston housing is located between the outer housing and the torque transferring clutch. A piston is located in the piston housing. The piston is configured to provide actuation forces to the torque transferring clutch. And, when the torque transferring clutch receives the actuation forces, the torque transferring clutch causes the inner housing to rotate.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: December 3, 2013
    Assignee: Eaton Corporation
    Inventors: John Allen Grogg, Mark James Shewchuck
  • Idle-able auxiliary drive system
    Patent number: 8474349
    Abstract: A power transfer unit (PTU) for a motive device includes an outer housing and a torque transferring clutch. The PTU also includes a piston housing located between the outer housing and the torque transferring clutch, and a piston in the piston housing. The piston is arranged to provide actuation forces to the torque transferring clutch, and to restrict reaction forces back to the piston housing.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: July 2, 2013
    Assignee: Eaton Corporation
    Inventors: John Allen Grogg, Mark James Shewchuck
  • Idle-Able Auxiliary Drive System
    Publication number: 20110127135
    Abstract: A power transfer unit for a motive device comprises an outer housing, an inner housing, and a torque transferring clutch. A piston housing is located between the outer housing and the torque transferring clutch. A piston is located in the piston housing. The piston is configured to provide actuation forces to the torque transferring clutch. And, when the torque transferring clutch receives the actuation forces, the torque transferring clutch causes the inner housing to rotate.
    Type: Application
    Filed: November 11, 2010
    Publication date: June 2, 2011
    Applicant: EATON CORPORATION
    Inventors: John Allen Grogg, Mark James Shewchuck
  • IDLE-ABLE AUXILIARY DRIVE SYSTEM
    Publication number: 20100147644
    Abstract: A power transfer unit (PTU) for a motive device includes an outer housing and a torque transferring clutch. The PTU also includes a piston housing located between the outer housing and the torque transferring clutch, and a piston in the piston housing. The piston is arranged to provide actuation forces to the torque transferring clutch, and to restrict reaction forces back to the piston housing.
    Type: Application
    Filed: December 2, 2009
    Publication date: June 17, 2010
    Applicant: Eaton Corporation
    Inventors: John Allen Grogg, Mark James Shewchuck