Patents by Inventor Arie Pieter Van Den Berg

Arie Pieter Van Den Berg 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).

  • Apparatus for compensating movements of an apparatus for measuring or recording displacements in respect of a fixed reference surface
    Patent number: 3965728
    Abstract: An apparatus for use in soil sounding in which a probe is mounted on a vehicle includes an improved simple device for monitoring the displacement of a reference surface from the ground level in order to provide an accurate indication of the position of the probe. One sensor indicates the displacement of the probe and the reference surface, which displacement is greater than the actual displacement of the probe into the ground. Another sensor indicates the displacement of the reference surface relative to the ground, these displacements being imputs to a subtractor which provides an output representative of the true displacement of the probe relative to the ground level.
    Type: Grant
    Filed: July 9, 1974
    Date of Patent: June 29, 1976
    Assignee: Ingenieursbureau A.P. van den Berg B.V.
    Inventor: Arie Pieter Van Den Berg