Patents Assigned to Autokraft Limited
  • Vehicle drive
    Patent number: 4875535
    Abstract: Apparatus for driving and steering an invalid chair, or other light wheeled vehicle, comprises a transverse drive transmission shaft (8) with end cones (9 and 10) which contact across the periphery respectively of each of a pair of road wheels (11 and 12). By transverse axial movement of the drive transmission shaft the contact diameter of the cones can be varied and thus the relative speed of the road wheels controlled for differential steering.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: October 24, 1989
    Assignee: Autokraft Limited
    Inventor: Robert H. Parker