Electricity: measuring and testing – Electrostatic field – Using modulation-type electrometer
Reexamination Certificate
2007-03-27
2007-03-27
Hirshfeld, Andrew H. (Department: 2858)
Electricity: measuring and testing
Electrostatic field
Using modulation-type electrometer
C204S435000, C204S433000
Reexamination Certificate
active
10537541
ABSTRACT:
For simplified supply of potentiometric sensors with a reference electrolyte, a sensor plug head for connecting to a cable connection piece of a potentiometric sensor is provided. The sensor plug head including, besides the usual electric connections, a supply connection for connecting to a reference container of the potentiometric sensor. The supply connection includes, preferably, an electrolyte line and the reference container an opening, with the electrolyte line being connectable to the opening, in order to supply the reference container with electrolyte.
REFERENCES:
patent: 4444644 (1984-04-01), Hiramoto et al.
patent: 5820739 (1998-10-01), Graser et al.
patent: 5980712 (1999-11-01), Tauber et al.
patent: 6423197 (2002-07-01), Lenferink et al.
patent: 6551478 (2003-04-01), Bielawski et al.
Babel Wolfgang
Wittmer Detlev
Bacon & Thomas PLLC
Endress + Hauser Conducta Gesellschaft fur Mess-u. Regeltechnik
Hirshfeld Andrew H.
Natalini Jeff
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