Measuring and testing – Hardness – By penetrator or indentor
Reexamination Certificate
2007-12-18
2007-12-18
Noland, Thomas P. (Department: 2856)
Measuring and testing
Hardness
By penetrator or indentor
C073S012010, C073S170320
Reexamination Certificate
active
08916106
ABSTRACT:
With an arrangement for determining the penetration depth (10) when putting in place supporting elements (2) into a water bed (5), according to the invention, there is provided a pressure sensor (7) for measuring the water pressure which is fastenable to the supporting element (2) or to a device (1) connected to the supporting element (2). The readings (11) supplied by the pressure sensor (7) are transmitted via a signal lead (15) to an evaluation unit (16) which determines the penetration depth (10) of the supporting element (2) from the reading differences which occur during the sinking of the pressure sensor (7) on penetration of the supporting element (2) into the water bed (5).
REFERENCES:
patent: 4186373 (1980-01-01), Thompson
patent: 4217709 (1980-08-01), Casciano
patent: 3338135 (1985-05-01), None
patent: 2165715 (1986-04-01), None
Menck GmbH
Noland Thomas P.
Striker Michael J.
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