Appeal No. 2000-1300
Application 08/853,581
19 are all of the claims remaining in this application. Claims
2, 3, 5, 6, 15, 16 and 20 have been canceled.
As noted on page 1 of the specification, appellants’
invention relates to:
a method of producing flowing gas mixtures having
constant compositions over periods of time, and more
particularly to a method of providing a gas mixture
stream whose component concentrations are continuously
adjusted to maintain the ratio of the components of
the gas mixture substantially constant over extended
periods of time. The invention is especially useful
for accurately filling gas cylinders with gas mixtures
of desired compositions.
In addition, the invention also relates to a system (claim 13)
for carrying out the above method.
Independent claims 1 and 13 are representative of the
subject matter on appeal and a copy of those claims can be found
in the Appendix to appellants’ brief.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Strain et al. (Strain) 3,856,033 Dec. 24,
1974
McLoughlin et al. (McLoughlin) 4,324,294 Apr. 13,
1982
-2-
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 Next
Last modified: November 3, 2007