Appeal No. 2002-0258
Application No. 09/254,402
at least one electrochemical solid electrolytic test cell
including at least one cathode;
a selective oxygen-ion-conductive layer covering the at least
one cathode and including a mixed-conductive ceramic material, the
selective oxygen-ion-conductive layer being exposed to the gas
mixture and being configured to conduct oxygen therethrough only
in the form of oxygen ions; and
an electrically nonconductive layer separating the at least
one cathode from the selective oxygen-ion-conductive layer, the
electrically nonconductive layer including particular portions
which are permeable to gas, the gas-permeable portions being
configured to conduct the oxygen conducted through the selective
oxygen-ion-conductive layer to the cathode;
wherein the cathode is separated from the gas mixture by the
selective oxygen-ion-conductive layer and the electrically
nonconductive layer.
12. The measuring arrangement according to claim 11, further
comprising:
at least one further cathode, wherein the at least one
cathode is situated in a diffusion channel between an opening of
the diffusion channel and the at least one further cathode.
18. The measuring arrangement according to claim 12, wherein
the diffusion channel is a tunnel structure composed of heat-
resistant glass.
The References
In rejecting the claims under 35 U.S.C. § 103(a), the
examiner relies upon the following references:
Nakazawa et al. (Nakazawa) 5,178,744 Jan. 12, 1993
Garzon et al. (Garzon) 5,543,025 Aug. 06, 1996
Liu et al. (Liu) 5,667,652 Sep. 16, 1997
Dietz et al. (Dietz) 5,879,526 Mar. 09, 1999
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