Patents by Inventor Andrew F. Joseph

Andrew F. Joseph 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).

  • Clutch and synchronizer having permanent magnet actuators
    Patent number: 7086515
    Abstract: A friction clutch pack utilizes permanent magnets and induction rings to actuate a ball ramp actuator which come in turn, engages the friction clutch pack to transfer torque between drive and driven members in, for example, a motor vehicle transfer case. The permanent magnets and induction rings may also be utilized as a synchronizer to urge the speeds of two rotating members into synchronism to facilitate engagement of a direct coupling i.e., a dog clutch.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: August 8, 2006
    Assignee: BorgWarner Inc.
    Inventors: William R. Kelley, Jr., Andrew F. Joseph