Appeal No. 97-4168
Application 08/348,890
As stated, the examiner’s combination would result in a metal cap
(as seen in Figures 14-20 of Büdenbender ‘576) with a metal
insert of the type seen in Hawkins. Appellant’s independent
claim 7 specifically requires “a plastic sealing cap in screw-
threaded engagement with the screw threads of the ring” (emphasis
added) and that the plastic sealing cap further have a disk-
shaped metal insert “for protecting said sealing cap against
corrosive liquid in said container.” Not only is there no
teaching in the applied references of appellant’s problem and
solution concerning corrosive liquids in the container contacting
a plastic sealing cap (specification, page 3), but we also fail
to see any teaching, suggestion or incentive in the applied
references for making the metal caps of Büdenbender ‘576 of a
plastic material in the first place and then attempting to
provide such plastic caps with a metal insert to preclude damage
by corrosive liquid carried in the container. Unlike the
examiner, it is our view that the recitations in appellant’s
claim 7 regarding 1) the transport and storage of corrosive
liquids and 2) the protection of the plastic cap of the container
by the disk-shaped metal insert against corrosive liquid in the
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