Appeal No. 96-3395 Page 20
Application No. 08/347,900
The third element recites that the “sample is delivered
to said valve through an inlet passage ....” As
aforementioned regarding claim 7, Spencer discloses that one
port of the three-way valve 57 connects to the discharge line
47, which is a connection to a sample source. Accordingly, a
sample is delivered to the valve through an inlet passage
connected to the discharge line.
The fourth element recites that “said purge fluid [is]
delivered to said valve through a purge gas flow line serially
through a source blocking valve.” As aformentioned regarding
claim 1, Sanford discloses delivering flows of a wash fluid
and drying gas through many flow lines (e.g., conduits 20,
22, 32, 33, 27, 41, and 44) and valves 11 and 12 to valve 10.
As also aforementioned, Seiden teaches delivering a flow of
purge gas 17, through a valve 16 and a flow line, to a system
with valves in order to purge the system. Therefore, we find
that the references would have suggested the elements of claim
12.
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