Appeal 2007-1570
Application 10/646,720
probes located at adjacent ends of the reference channel and the
measurement channel and having an elongated nozzle orifice; and
means for sensing a mass of gas flow between the reference
channel and the measurement channel.
46. A gas gauge proximity sensor that is provided with a gas supply
during operation, comprising:
a dividing portion that divides the supplied gas into a reference
channel and a measurement channel;
flow restrictors placed in the reference channel and
measurement channel;
probes respectively coupled to adjacent ends of the reference
channel and the measurement channel, the probes including elongated
nozzle orifices; and
a mass flow sensor coupled between the reference and
measurement channels that senses the mass of gas flow therebetween.
THE REFERENCES
Applicant’s Admitted Prior Art (APPA), “Background of the
Invention,” (Specification 1-3).
Zumbach US 3,948,082 Apr. 6, 1976
Carreras US 4,604,892 Aug. 12, 1986
Barada US 4,953,388 Sep. 4, 1990
Nemeth US 5,317,898 Jun. 7, 1994
THE REJECTIONS
Claims 19-24 stand rejected under 35 U.S.C. § 103(a) as being
unpatentable over the teachings of Barada in view of Carraras.
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