Appeal No. 1996-1813
Application No. 08/117,453
A. sample supply means; upstream of
B. sample temperature controller means; and
C. degassing means; both upstream of
D. analysis probe holder means containing a fiber
optic probe adapted for post dispersive
transflectance measurement and operably
connected to an infrared spectrophotometer;
E. prototype injection means for automatically
periodically injecting one of at least two
hydrocarbon mixtures of predetermined property
into said system to provide a reference for
calibration of said system over a range;
F. a plurality of sources of said hydrocarbon
mixtures of different predetermined property
operably connected to feed said prototype
injection means.
Rejections under 35 U.S.C. § 103
The Prior Art
The Maggard ‘785 patent
Maggard discloses a process for the determination of
aromatic constituents in hydrocarbons by near infrared
spectroscopy. (Column 1, lines 17-19). Aromatic and
nonaromatic calibration standards are said to be derived from
a hydrocarbon which has been subject to high performance
liquid chromatography. (Column 2, lines 52-57). The
concentration of aromatics in the sample is then determined by
measuring the absorbance of each of the two portions at the
frequency being used. (Column 2, lines 57-64). The
absorbance reading are subsequently used to derive the
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