Liquid level indicator

Measuring and testing – Volumetric content measuring

Reexamination Certificate

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Details

C073S30400R, C224S148100, C222S175000

Reexamination Certificate

active

06840100

ABSTRACT:
A liquid level measuring system for a personal hydration pack using capacitive sensing pads located outside of the reservoir. Variation in the liquid level due to movement of the pack is used advantageously to increase the resolution of the measurement. An indicator shows both the liquid level and the time remaining before reservoir depletion.

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Quantum Research Group Ltd, QProx QT114 Charge-Transfer QLevel Sensor IC, 1999.

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