Patents Assigned to Expresso Deutschland Transpotgeräte GmbH
  • Patent number: 6276471
    Abstract: A delivery cart including a chassis, one or two castors pivotable about a vertical axis and two support wheels for supporting the chassis on a ground, a substantially vertically extending displacement stirrup attached to the chassis, a gearless, load-actuated reversible electric motor, formed integrally with the respective wheels, and a control system for controlling power supply to the electric motors and including sensors for sensing a displacement force or a steering force applied to the cart, and a free-programmable control unit for controlling power supply to the electric motors, in accordance with the one of a displacement force and a steering force.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: August 21, 2001
    Assignee: Expresso Deutschland Transpotgeräte GmbH
    Inventors: Wolfgang Kratzenberg, Siegfried Stein