Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties
Reexamination Certificate
2005-08-16
2005-08-16
Patel, Harshad (Department: 2855)
Measuring and testing
Volume or rate of flow
By measuring electrical or magnetic properties
C073S861940
Reexamination Certificate
active
06928883
ABSTRACT:
A magnetic field coupler has a plurality of magnetic poles with respective first ends located immediately adjacent a circular path of a rotating magnet in a meter. The magnetic poles have respective opposite ends located immediately adjacent a magnetic sensor in a meter reading device. A nonmagnetic material separates each of the plurality of poles from all others of the plurality of the poles, and the nonmagnetic material is joined with the poles to form a unitary structure.
REFERENCES:
patent: 5216924 (1993-06-01), Le Breton
patent: 5264790 (1993-11-01), Moretti et al.
Lehker Wayne H.
Snoke Steven R.
VanDonkelaar Jon L.
Mack Corey D.
Mercury Instruments, Inc.
Patel Harshad
Wood Herron & Evans L.L.P.
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