Patents by Inventor Hermann Hartmann

Hermann Hartmann 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).

  • Fork lift truck with axle load determination for a rear-end axle
    Patent number: 7963178
    Abstract: A fork lift truck has a rear-end axle provided with a measuring device to determine the axle load. To enable the axle load to be determined using simple means which are reliable in operation, at least one shearing force detector (2 or 3) or normal force detector (6) in the form of a structural component and arranged in the force flux is integrated into the axle.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: June 21, 2011
    Assignee: Linde Material Handling GmbH
    Inventors: Peter Adami, Mark Hanke, Hermann Hartmann
  • Fork lift truck with axle load determination for a rear-end axle
    Publication number: 20080031715
    Abstract: A fork lift truck has a rear-end axle provided with a measuring device to determine the axle load. To enable the axle load to be determined using simple means which are reliable in operation, at least one shearing force detector (2 or 3) or normal force detector (6) in the form of a structural component and arranged in the force flux is integrated into the axle.
    Type: Application
    Filed: June 19, 2007
    Publication date: February 7, 2008
    Applicant: Linde Material Handling GmbH
    Inventors: Peter Adami, Mark Hanke, Hermann Hartmann
  • Amplifier for timed electrical measurement signals
    Patent number: 4814722
    Abstract: An amplifier for timed electrical measured signals loaded by a relatively high spurious DC voltage and fed to an analog-digital converter allows accurate measurement values using analog-digital converters of comparatively low resolution. The invention provides a signal superposed to consecutive and mutually opposite measured signals loaded with the spurious voltage that was obtained from the particular preceding signal relative to which it is inverted.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: March 21, 1989
    Assignee: Diessel GmbH & Co.
    Inventors: Hermann Hartmann, Hanjurgen Frohbose