Appeal No. 97-3007 Page 7
Application No. 08/161650
202, 208, for example. [examiner’s answer
at page 4]
Randolph discloses a method of impregrating glass fiber
articles in which a loose mat of fiber 10 is wound on a core
11 and inserted into a mold casing 12 (Col. 2, lines 52-56).
After insertion, the core is removed and a flexible envelope
or bladder is inserted and inflated (Col. 3, lines 73-Col. 4
line 4). After inflation of the bladder, the resin is
introduced and the bladder is inflated further to exert
further pressure (Col 4, lines 39-42). The mold is then
heated to cure the resin (Col. 4, line 72-Col. 5, line 1).
The bladder is then deflated and removed (Col. 5, line 6).
Similarly, Allen ’563 discloses a method of forming
fiber-reinforced plastic articles in which a fiber matting is
laid in a casing and a fiber preform is inserted (Col. 2,
lines 56-66). An inflation tube or bladder is inserted and
inflated (Col. 2, line 72-Col. 3, line 11). The inflation of
the bladder is enough to compact the fiber (Col. 3, lines 9-
11). Resin is then introduced and cured by heat, catalyst or
the like. The bag is then deflated and removed (Col. 3, lines
32-34).
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