Appeal No. 96-0251
Application 07/874,697
the reference electrode and working electrode to drive the
silver from the working electrode back to the reference
electrode. Thus, we sustain the rejection of claims 1, 2, 7,
8, 11/1, 11/2, 11/7, 11/8, 14/1, 14/2, 14/7 and 14/8 over the
applied references.4
Rejection of claims 3-6 over
Lucisano in view of Sabins
Appellants’ claim 3 recites that the sensor includes a
plurality of working electrodes or reference electrodes such
that only one of the electrodes is operative at any one time
and all of the electrodes are adapted to be connected
sequentially into the sensor circuit.
Sabins discloses a method for providing cathodic
protection for various types of structures by impressing
current upon the structures to maintain them at a
predetermined polarization (col. 1, lines 10-15 and 36-38;
col. 2, lines 31-37 and 64-69). A circuit for monitoring the
impressed current includes one or more reference cells which
can be silver/silver chloride half cells and which are
4 A discussion of Hersch, Dahms and Sabins is not
necessary to our decision.
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