Measuring and testing – Moisture content or absorption characteristic of material
Reexamination Certificate
2007-05-02
2009-12-15
Caputo, Lisa M (Department: 2855)
Measuring and testing
Moisture content or absorption characteristic of material
C137S078300, C239S063000
Reexamination Certificate
active
07631545
ABSTRACT:
The present invention is embodied in a tensiometer apparatus and process that employs novel techniques for performing the required routine service operation of refilling a sealable measurement chamber of the apparatus with liquid from a reservoir using a novel, piston-type, “jet-action” plunger mechanism. These novel techniques result in a tensiometer which is easier to use, requires no tools for assembly or replacement of parts, and is easier and lower cost to manufacture and maintain. These novel techniques also result in a tensiometer which has improved measurement sensitivity and accuracy, higher reliability and a longer operating lifetime than conventional tensiometers.
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Skaling Percy
Skaling Whitney
Caputo Lisa M
Lyon Richard T.
Lyon & Harr LLP
Patel Punam
SoilMoisture Equipment Corporation
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