Appeal No. 97-3065 Page 14
Application No. 08/452,747
expected to draw therefrom. In re Preda, 401 F.2d 825, 826,
159 USPQ 342, 344 (CCPA 1968).
Ales discloses an apparatus for applying contoured
elastic to a substrate. The operation of the apparatus 70
will be described with reference to Figures 4, 5 and 6. A
backing sheet for a garment is supplied from source 76 as
sheet 100. Sheet 100 is fed to the forming drum 102. Forming
drum 102 is preferably provided with a vacuum source such that
the web 100 is securely adhered thereto by the vacuum being
drawn through a series of holes in the outer surface 104 of
the drum. Instead
of vacuum, Ales teaches that it is possible to hold the web in
place by needles piercing the material at the edge or by a
tenter frame. The web 100 adhered to drum 102 then passes
beneath the first pin applicator roll 78 to which is fed in a
straight line two strips of stretched self-adhering elastic
106 and 108. These strips of elastic are applied to the rim
78 below rollers 110 and 112 and are formed in rings around
pins 114 by cutting and adhering devices 116 and 118. When
the rings of elastic 120
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