Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2007-01-09
2007-01-09
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
C073S204250
Reexamination Certificate
active
10530386
ABSTRACT:
A device for determining flow parameters, particularly the temperature and flow speed and changes therein, in a fluid flow for monitoring and a fire recognition or oxygen measuring device provided with such a device are provided. A slow or sudden blockage, crack or break in a pipe system of an aspirative fire recognition device is recognized by a measurement technique, whereby an air flow sensor, operated with a constant excess temperature, is combined with a regulation algorithm, running in a microprocessor, for monitoring pipe system fluid flow or flow resistance. The required resistance of the air flow sensor can thus be calculated by an exact sensor calibration curve and a precise control loop formed. The measured values recorded by the air flow sensor are extremely reliable, such that changes in condition for the flow parameters provide information about the state of the pipe system or the intake system.
REFERENCES:
patent: 4846133 (1989-07-01), Shiraishi et al.
patent: 4946555 (1990-08-01), Lee et al.
patent: 5339687 (1994-08-01), Gimson et al.
patent: 6450024 (2002-09-01), McCulloch et al.
patent: 2001/0025526 (2001-10-01), Reymann et al.
patent: 683800 (1994-05-01), None
patent: 38 10 240 (1989-02-01), None
patent: 690 11 099 (1994-12-01), None
patent: 196 05 638 (1997-06-01), None
patent: 44 07 209 (2001-01-01), None
patent: 199 24 400 (2001-01-01), None
English translation of International Search Report
Barlow John
Collard & Roe P.C.
Kundu Sujoy
Wagner Alarm-und Sicherungssysteme GmbH
LandOfFree
Device for the determination of flow parameters for a fluid... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for the determination of flow parameters for a fluid..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for the determination of flow parameters for a fluid... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3748691