Appeal No. 1999-1478
Application 08/742,327
Appellants’ invention relates to an improved main shaft
in a coal pulverizer. The main shaft includes gear center
hold down threads dividing a yoke end from the other end of
the main shaft. A distal end of the yoke end includes a
tapered yoke end terminating with a threaded portion. The
improvement comprises the portion of the main shaft beginning
at but not including the gear center hold down threads to and
including the yoke end and the tapered yoke end of the main
shaft being nitride treated and the tapered yoke end having a
dry film lubricant applied thereon.2
Claim 1 is representative of the subject matter on appeal
and is reproduced below:
1. In a coal pulverizer having a main shaft, the main
shaft including a yoke end at one end of the main shaft with
the yoke end including a tapered yoke end at a distal end
thereof, the tapered yoke end of the main shaft terminating
with a threaded portion, the main shaft further including gear
2Our review of the record has revealed that the amendment
to the specification requested in the preliminary amendment
filed November 1, 1996 (Paper No. 8) has not been entered.
The amendment was directed to line 2 of the amendment filed
March 25, 1996 (Paper No. 3), to page 8, line 6 of the
specification. During any further prosecution before the
examiner, it appears that either the amendment should be
entered or the appellants should be notified of the non-entry.
3
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