Appeal No. 1997-1734
Application No. 08/215,259
cylinder 100, a pump 102, a regulator 104, an extraction
section 106, a nozzle 108, a pressure transducer 112, a flow
transducer 118, and a control loop 116 (figure 1; column 7,
lines 17-39). In another embodiment, Frank teaches the use of
a heat exchanger 204 and preheater 211 to control the
temperature of the fluid upstream of the extraction chamber
(figure 3; column 8, lines 40-50 and 61-63). According to
Frank, the extraction chamber is preferably actuated between
two positions and that this actuation permits the chamber to
be automated (column 8, line 66 to column 9, line 1). Frank
further teaches that an “apparatus for automatically creating
the high pressure seals necessary between chamber 210 and the
vessel containing the sample” can be included (column 9, lines
1-4). Frank states that the vessel containing the sample is a
“thimble,” which is preferably “a common vessel in an
automated bench, permitting the same vessel to serve as a
sample transport vessel, as part of a filtering apparatus”
(column 9, lines 18-21). Also, Frank teaches that, in a
preferred embodiment, the apparatus additionally comprises a
queue which can collect multiple fractions in sample
10
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: November 3, 2007