Appeal No. 2002-1954
Application No. 09/458,926
cell foam material 42 and a laminated outer shell 6 of fiber
reinforcement impregnated in a continuous resin matrix. The
fibers are long “continuous” fibers made of material selected
from the group consisting of glass, boron, carbon and aramid (see
column 2, lines 37 through 51), and the matrix is preferably a
thermoplastic resin, and mere preferably a poly(arylene sulfide)
resin (see column 2, lines 24 through 33). As shown in Figure 3,
the outer shell 6 includes at least three layers of fiber
reinforcement extending the length of the bat: at least one layer
of generally circumferentially extending fiber rovings 20 forming
an angle of near 0° with respect to a plane normal to the
longitudinal axis 10, at least one layer of generally
longitudinally extending fiber rovings 24, 32 lying generally in
planes which include the longitudinal axis 10, and at least one
layer of generally helically extending rovings 28 forming an
angle of near 0° to near 90°, and usually between about 20° and
70°, with respect to a plane normal to the longitudinal axis 10
(see column 2, line 59, through column 4, line 2). The bat may
optionally include at least one additional layer of generally
circumferentially extending fiber rovings 36 in the body portion
11 and at least one additional layer of generally longitudinally
4
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Last modified: November 3, 2007