Appeal No. 2000-1633 Page 5
Application No. 08/994,159
laterally-extending pin 33 projects through aligned apertures
34, formed through the tabs, and a bore (not shown) formed
through the hub to retain the insert in position thereon. A
cushioning means 27c, comprising a layer of elastomeric
material, is disposed between the insert and the hub. The
apertures 34 are shown in Figure 7 to be slightly oversized,
like the apertures 30 shown in Figure 5, to permit slight
movements of the insert relative to the hub.
Claim 12 reads as follows:
A drive wheel assembly for driving a chain,
comprising:
a wheel;
a plurality of bogies each comprising a first hook;
a plurality of mounts pivotally connecting said
bogies to said wheel at pre-selected spaced
circumferential locations about said wheel; and
an impact absorbing cushion member disposed between
each of said bogies and said wheel.
In applying the above-noted test for anticipation, we
reach the conclusion that claim 12 is anticipated by Durand.
In that regard, claim 12 is readable on Durand as follows: A
drive wheel assembly for driving a chain (see Figure 1 of
Durand), comprising: a wheel (Durand's drive sprocket 10c); a
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Last modified: November 3, 2007