Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2007-09-27
2010-11-23
Neckel, Alexa D (Department: 1795)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C204S416000, C204S435000, C204S412000, C204S400000, C205S787500
Reexamination Certificate
active
07837847
ABSTRACT:
A pH sensor is provided. The pH sensor includes a body, a glass electrode, a reference electrode and a solution ground. The glass electrode is disposed on the body to contact a liquid sample. The reference electrode has a reference fill solution disposed within the body. The solution ground electrode is operably coupled to the body and has a portion of the solution ground electrode that is disposed within a harbor such that a portion of the solution ground electrode is configured to contact the liquid sample. The body has a passageway that extends from the reference fill solution to an aperture proximate the liquid sample.
REFERENCES:
patent: 3208927 (1965-09-01), Arthur et al.
patent: 3492216 (1970-01-01), Riseman et al.
patent: 3862895 (1975-01-01), King et al.
patent: 4390406 (1983-06-01), Kato et al.
patent: 4571298 (1986-02-01), Holz
patent: 4667939 (1987-05-01), Luyckx
patent: 4822456 (1989-04-01), Bryan
patent: 5008008 (1991-04-01), Lockshaw
patent: 5139641 (1992-08-01), Neukum
patent: 5469070 (1995-11-01), Koluvek
patent: 5830338 (1998-11-01), Seto et al.
patent: 6022474 (2000-02-01), MacKelvie
patent: 6322680 (2001-11-01), Itsygin
patent: 6495012 (2002-12-01), Fletcher et al.
patent: 6551480 (2003-04-01), Taagaard et al.
patent: 2003/0029722 (2003-02-01), Erdosy et al.
patent: 2004/0011670 (2004-01-01), Broadley et al.
patent: 2004/0195098 (2004-10-01), Broadley et al.
patent: 2006/0278529 (2006-12-01), Feng et al.
patent: 1 610 120 (2005-12-01), None
patent: 2 341 235 (2000-03-01), None
patent: WO 03/052387 (2003-06-01), None
International Search Report and Written Opinion from International Application No. PCT/US2007/020821, filed Sep. 27, 2007.
“Theory and Practice of pH Measurement,” Rosemount Analytical Inc., Sep. 1999.
International Search Report and Written Opinion from application No. PCT/US2006/022418, filed Jun. 8, 2006.
Covey Beth M.
Feng Chang-Dong
Wood Wayne B.
Christenson Christopher R.
Dieterle Jennifer
Neckel Alexa D
Rosenmount Analytical Inc.
Westman Champlin & Kelly P.A.
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