Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2008-01-15
2008-01-15
Nguyen, Tai (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S617000, C340S618000, C340S621000, C342S124000, C342S175000, C073S001730, C073S618000, C073S629000, C073S29000R
Reexamination Certificate
active
07319401
ABSTRACT:
A radar level gauge system for determining the filling level of a filling material in a tank is disclosed. The system comprises a transmitter for transmitting measuring signals towards the surface of the filling material; a receiver for receiving echo signals from the tank; processing circuitry for determining the filling level of the tank based on said echo signal and adapted to compare said determined filling level with at least one preset threshold value and to produce an alarm signal in dependence of said threshold value; and a storage means for storing the preset threshold value, wherein said threshold value in said storage means is replaceable and/or adjustable. The alarm signal could indicate high level and/or overfill. The possibility of adjusting/replacing the threshold values enables adjustment of the alarm levels when the system is already installed.A corresponding method of operation is also disclosed.
REFERENCES:
patent: 4221004 (1980-09-01), Combs et al.
patent: 4700569 (1987-10-01), Michalski et al.
patent: 4890266 (1989-12-01), Woodward
patent: 5253511 (1993-10-01), Jaramillo et al.
patent: 5305237 (1994-04-01), Dalrymple et al.
patent: 5649450 (1997-07-01), Glab et al.
patent: 6047598 (2000-04-01), Otto et al.
patent: 6414625 (2002-07-01), Kleman
patent: 6634234 (2003-10-01), Haas
patent: 6679115 (2004-01-01), Heidecke
patent: 6765524 (2004-07-01), Kleman
patent: 7095365 (2006-08-01), Klofer et al.
patent: 2003/0191609 (2003-10-01), Bernardi et al.
patent: 2350004 (2000-11-01), None
patent: WO 03/025523 (2003-03-01), None
patent: 2004018978 (2004-03-01), None
patent: WO 2004/018978 (2004-03-01), None
Åkerström Tomas
Welin Anders
Nguyen Tai
Rosemount Tank Radar AB
Westman Champlin & Kelly P.A.
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