Measuring and testing – Gas content of a liquid or a solid – By vibration
Reexamination Certificate
2007-09-21
2010-02-16
Williams, Hezron (Department: 2856)
Measuring and testing
Gas content of a liquid or a solid
By vibration
C073S061750, C073S597000, C073S598000, C250S343000, C604S006080
Reexamination Certificate
active
07661294
ABSTRACT:
An integrated multi-function sensor system has a head having a slot to accept a tube of a deformable material and a plurality of sensor elements mounted in the walls of the head slot to confront a tube in the slot, each sensor element being for affecting sensing of a condition relating to a liquid in the tube. An integrated electronic circuit including a microprocessor operates to determine the various conditions of a liquid flowing in the tube sensed by the sensor elements, which conditions include detection of air bubbles and/or particles by ultrasonic sensing elements, detection of an occlusion in the liquid flow by sensing the deformation of the tube wall by a force sensing element, determining the temperature of the liquid by an infrared temperature sensing element, and determining the color of the liquid by optical elements.
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Coplein Gordon D.
Cosense Inc.
Fresenius Medical Care Holdings, Inc.
Miller Rose M
Williams Hezron
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