Measuring and testing – Volume or rate of flow – Expansible chamber
Reexamination Certificate
2008-09-30
2008-09-30
Patel, Harshad (Department: 2855)
Measuring and testing
Volume or rate of flow
Expansible chamber
C604S254000
Reexamination Certificate
active
11273226
ABSTRACT:
The present invention provides apparatus for measuring volumetric or mass flow of fluid. The apparatus comprises a capsule that is adapted to move upwardly and downwardly within a housing and receive fluid from a tube. The apparatus further comprises force exerting means and preferably a magnetic means that is adapted to exert force on the capsule, the force is proportional to a position of the capsule within the housing. The force is measurable and controllable. A seal is provided in the capsule's bottom opening so as to fluidically block the capsule and a pin is provided so as to push aside the seal when the capsule is downwardly positioned and is filed with fluid so as to drain it. The number of times the capsule is drained in a predetermined time can be calculated so as to attain the volumetric flow rate of the fluid through the apparatus.
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Ronen Aviram
Weinstein Yechiel
A.L. Hadas Technologies, Ltd.
Angenehm Law Firm, Ltd.
Friederichs N. Paul
Patel Harshad
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