Patents by Inventor Katherien L. Oosterwal

Katherien L. Oosterwal 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).

  • Multispeed, shaft-driven vehicle drive
    Patent number: 5228354
    Abstract: A multispeed, shaft-driven drive for a human propelled vehicle has a driving gear set of concentric ring gears, a driven gear set of concentric ring gears, a rotatable drive shaft having a pinion on each end and a control mechanism for moving the pinions axially of the shaft and into and out of engagement with selected ring gears.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: July 20, 1993
    Assignee: Massachusetts Institute of Technology
    Inventors: Dantar P. Oosterwal, Katherien L. Oosterwal