Measuring and testing – Instrument proving or calibrating – Fluid pressure
Reexamination Certificate
2005-02-01
2005-02-01
Raevis, Robert (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Fluid pressure
C073S001680
Reexamination Certificate
active
06848292
ABSTRACT:
The present invention relates to system for calibrating plurality of pressure transducers, said system comprising plurality of pressure transducers (13.1to13.n) mounted on a mounting means (12) which receives pressure input from a pressure source (11) via a hollow pipe (14) and distributes the pressure evenly to all the pressure transducers, said plurality of pressure transducers are mounted on the mounting means and placed inside a vessel (15) as to vary the temperature of the pressure transducers, said pressure source is also connected to a standard pressure transducer (17) whose temperature is maintained at the same level as that of pressure transducers (13.1to13.n).
REFERENCES:
patent: 596581 (1898-01-01), Edson
patent: 821988 (1906-05-01), Craig
patent: 4658829 (1987-04-01), Wallace
patent: 4739663 (1988-04-01), Peterson
patent: 4862909 (1989-09-01), Kim, II
patent: 5222534 (1993-06-01), Wilkinson, Jr.
patent: 6450005 (2002-09-01), Bentley
Desa Ehrlich
Joseph Antony
Kumar Vijay
Mehra Prakash
Nagvekar Surekha mahesh
Council of Scientific and Industrial Research
Harness & Dickey & Pierce P.L.C.
Raevis Robert
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