Patents by Inventor Matthias Appeldorn

Matthias Appeldorn 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: 6142266
    Abstract: An energy storing brake for a vehicle, such as an industrial truck, includes a rotating brake rotor (5) and a non-rotating braking body (3) that can be moved relative to the brake rotor (5). The braking body (3) can be pressed by an energy storing device (4), preferably realized in the form of a spring, against the brake rotor (5), and can be detached from the brake rotor (5) by a brake lifter against the force of the energy storing mechanism (4). A hydraulic cylinder (8) can be pressurized as required, by which a supplemental force in the same direction as the force of the energy storing mechanism (4) can be exerted on the braking body (3). The hydraulic cylinder (8) can be pressurized as a function of the actuation of a brake control mechanism, preferably of a brake pedal, by an operator.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: November 7, 2000
    Assignee: Still GmbH
    Inventors: Matthias Appeldorn, Martin Hinkelmann
  • Patent number: 5841209
    Abstract: An industrial truck, in particular a fork-lift truck, has a driving axle which is fixed to the industrial truck at two mounting locations at least. A rotor of an electric propulsion motor is disposed within an axle housing (3a, 3b, 3c) of the driving axle. At least at one end, the rotor of the propulsion motor is mounted rotatably on a bearing bracket (17) fixed to the axle housing. The bearing bracket (17) is detachably fixed to the axle housing (3a, 3b, 3c) and the mounting locations (1, 13) are disposed on the axle housing (3a, 3b, 3c). In one embodiment of the invention, the bearing bracket (17) exhibits an offset form and in the axial direction the area of the bearing bracket (17) fixed to the axle housing (3a) is a greater distance from the rotor (10) than the area of the bearing bracket (17) on which the rotor (10) is mounted.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: November 24, 1998
    Assignee: Still GmbH
    Inventor: Matthias Appeldorn