Measuring and testing – With fluid pressure – Leakage
Reexamination Certificate
2011-08-02
2011-08-02
Rogers, David A. (Department: 2856)
Measuring and testing
With fluid pressure
Leakage
C073S040700, C073S046000, C269S020000, C269S056000, C269S153000, C269S265000
Reexamination Certificate
active
07987699
ABSTRACT:
A pneumatic assembly for a pressure decay tester of printhead integrated circuits includes a pressurized air supply. A pneumatic clamping arrangement is in fluid communication with the pressurized air supply for clamping a carrier for the printhead integrated circuits such that the carrier is in fluid communication with the printhead integrated circuits. A valve arrangement applies a predetermined pressure to the carrier. A sensing arrangement senses a static pressure in the carrier. A control system is in communication with the clamping, valve and sensing arrangements to control operation thereof and to generate a discernible signal representing said static pressure such that a decay in said static pressure can be determined.
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Bernardi David
Granger William
O'Donnell Eric Patrick
O'Farrell Stephen Richard
Sleijpen Stephen John
Rogers David A.
Silverbrook Research Pty Ltd
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