Patents by Inventor Dantar P. Oosterwal

Dantar P. 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).

  • 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
  • Patent number: 4903511
    Abstract: An anti-theft steering shaft lock having a lost motion connection between the steering shaft and a stationary lock keeper on the steering column to dissipate restoring torque on the steering shaft after the driver locks the steering shaft so that subsequent withdrawal of a lock bolt from the lock keeper is not impeded. The lost motion connection includes a lost motion sleeve slidably and rotatably supported on the steering shaft and carrying the lock bolt thereon, a drive pin on the steering shaft received in a V-shaped notch in an end of the lost motion sleeve, a relatively low rate spring biasing the lost motion sleeve against the pin, and a relatively high rate spring which is engaged by the lost motion sleeve after a predetermined angular interval of relative rotation between the steering shaft and the lost motion sleeve to effectively prevent further relative rotation and thereby render the shaft unsteerable.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: February 27, 1990
    Assignee: General Motors Corporation
    Inventors: Donald A. Niedzielski, Indulis Piziks, Dantar P. Oosterwal
  • Patent number: 4850239
    Abstract: This integrated wheel hub and upper steering shaft assembly foreshortens the steeing column and steering wheel assembly. The connection of the steering wheel to the upper steering shaft between the upper and lower bearings of the bearing housing allows the angularly adjustable head to be tilted with the wheel hub closer to the point of the pivot. This provides for foreshortened steering column length while retaining effective energy absorbing stroke for use in a side range of vehicle applications including those with short fore/aft space for column installation.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: July 25, 1989
    Assignee: General Motors Corporation
    Inventor: Dantar P. Oosterwal