Appeal No. 95-4866
Application 08/179,770
apparatus having a rectangular first mold (39) which is fixed
to the bed of a trailer (col. 3, lines 54-55; Figs. 1 and 2).
This mold has a plenum therein (col. 9, lines 39-65; Fig. 16).
Thus, the first mold (39) has, attached to the trailer, a
first fixed wall having an outer substantially planar mold
surface (outer surface of first mold face 41 in Fig. 16) and a
second plenum face (inner surface of first mold face 41 in
Fig. 16). The Willingham apparatus does not have a second
fixed wall which is parallel to the first fixed wall and has
an outer substantially planar mold surface and a second plenum
surface, as required by all of appellant’s independent claims.
Both of Willingham’s second and third molds (71 and 103; Fig.
16) are movably attached to the bed of the trailer (col. 4,
lines 8-9 and 35-36).
Hummelshoj discloses a concrete molding apparatus having
a number of molds (5) assembled into a battery such that
spaces between the molds are filled with concrete to form
plate-shaped building elements (col. 2, line 65 - col. 3, line
7). The molds rest on wheeled bogies (6) which are
displaceable along a wheel track which may serve for transport
or as a production line (col. 3, lines 8-11).
6
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