Measuring and testing – Volumetric content measuring
Reexamination Certificate
2005-01-11
2005-01-11
Cygan, Michael (Department: 2855)
Measuring and testing
Volumetric content measuring
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.
REFERENCES:
patent: 3930411 (1976-01-01), Beeker et al.
patent: 3939360 (1976-02-01), Jackson
patent: 4002996 (1977-01-01), Klebanoff et al.
patent: 4003259 (1977-01-01), Hope
patent: 4295370 (1981-10-01), Bristol
patent: 4383444 (1983-05-01), Beaman
patent: 4840137 (1989-06-01), Beauvais
patent: 5565851 (1996-10-01), Richards
patent: 5613399 (1997-03-01), Hannan et al.
patent: 5747689 (1998-05-01), Hampo et al.
patent: 6016113 (2000-01-01), Binder
patent: 6337959 (2002-01-01), Kwak et al.
patent: 6364168 (2002-04-01), Gardner
patent: 6422439 (2002-07-01), Kelliher
patent: 6472887 (2002-10-01), Tullis
patent: 6598770 (2003-07-01), Bolts
patent: 6658929 (2003-12-01), Atkinson
Quantum Research Group Ltd, QProx QT114 Charge-Transfer QLevel Sensor IC, 1999.
LandOfFree
Liquid level indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid level indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid level indicator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3366521