Patents by Inventor Heinz Schalmath

Heinz Schalmath 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: 6343907
    Abstract: A low-lift fork truck including a driving part which has a driving wheel disposed on the longitudinal axle and is driven by an electric motor, which is supported in a steering bolster adapted to be pivoted about a vertical axis, and a drawbar hinged to the steering bolster and a lifting cylinder. The truck further including a load-carrying part adjustable in height to a certain extent towards the driving part which has two parallel-spaced wheel arms and a rigid transverse member interconnecting the wheel arms wherein the transverse member is adapted to be coupled to the lifting cylinder and a linkage coupled to the transverse member is joined by a hinge to a forcing bar in the wheel arms which, in turn, actuates the rocker of a load-carrying roller at the end of the wheels arms to perform a lift.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: February 5, 2002
    Assignee: Jungheinrich Aktiengesellschaft
    Inventor: Heinz Schalmath
  • Patent number: 6125971
    Abstract: A forklift truck which includes a chassis (10) and a housing (12). Two parallel spaced wheel arms are attached to the chassis. The housing includes a battery-operated driving motor as well as a hydraulic lift. A pole (16) including control means for the control of said motor and said hydraulic lift is connected to a stand (203), the stand being rotatably mounted about a vertical axis and connected to a driving wheel (202). A monomast (20) is arranged centrally between the wheel arms and integral with the housing, the monomast have front and back sides, the back side facing the pole. A carriage (22) for a load fork is attached to the hydraulic lift. A box-shaped cover is attached to the back side of the monomast, and the pole is arranged asymmetrically with respect to the monomast.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: October 3, 2000
    Assignee: Jungheinrich Aktiengesellschaft
    Inventors: Michael Niebuhr, Hans-Peter Schmohl, Heinz Schalmath