Measuring and testing – Instrument proving or calibrating – Liquid level or volume measuring apparatus
Reexamination Certificate
2006-08-29
2006-08-29
Garber, Charles (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Liquid level or volume measuring apparatus
Reexamination Certificate
active
07096710
ABSTRACT:
In a method for monitoring the operability of a liquid delivery device such as a dispenser (10), a response signal of a liquid-transformer system consisting of a transformer (24) and a chamber (12) containing a liquid is compared with a reference value. Preferably, the reference value is determined when the liquid-transformer system is operative, i.e., non-disturbed. The response signal differs from the reference value if there are air bubbles in the chamber (12), for example. By comparing the response signal with the reference value, a correction step such as a cleaning cycle can be performed when a limit value is exceeded or fallen short of.
REFERENCES:
patent: 5838350 (1998-11-01), Newcombe et al.
patent: 6094966 (2000-08-01), Papen et al.
patent: 6112605 (2000-09-01), Papen et al.
patent: 6158269 (2000-12-01), Dorenkott et al.
patent: 4029616 (1992-03-01), None
patent: 0 580 483 (1994-01-01), None
patent: 2297312 (1996-07-01), None
patent: 01-150549 (1989-06-01), None
patent: 11-125638 (1999-05-01), None
patent: WO 98/45205 (1998-10-01), None
patent: WO 00/33961 (2000-06-01), None
PTO 06-311, English language translation of Japanese Patent Application HEI 1 [1989]-150549 published Jun. 13, 1989.
Tomita Mitsuo, Dispensing Apparatus, Patent Abstracts of Japan, Publication No. 11125638, Published May 11, 1999.
Koisumi Yukihisa, Bubble Detecting Device for Ink Flow Path in Ink Jet Printer, Patent Abstracts of Japan, Publication No. 01150549, Published Jun. 13, 1989.
International Search Report for International Application completed Feb. 5, 2003 and mailed Feb. 13, 2003, completed by C. Hanisch.
International Preliminary Examination Report for International Application in German.
English Language Translation of International Preliminary Examination Report for PCT/EP2002/007554, completed Oct. 28, 2003.
German Search Report, dated Apr. 12, 2002, 4 pages.
Ehlert Axel
Preckel Hartwig
Wendt Oliver
Evotec OIA AG
Garber Charles
LandOfFree
Method for monitoring the operational capability of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for monitoring the operational capability of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for monitoring the operational capability of a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3623480