Appeal No. 2004-0235 Page 4
Application No. 09/873,583
Claim 30 reads as follows:
A self-sealing drinking container, comprising:
a cup body having a hollow interior for holding and dispensing a liquid;
a lid assembly sealingly engagable with said cup body, said lid assembly
having a first opening;
a first valve housed within a first cage member which is removably located
in said first opening for selectively sealing said first opening, said first valve
comprising:
a first valve seat;
a flexibly resilient first diaphragm member seated at said first valve
seat, said first diaphragm member having a central hub portion protruding
from a surface opposite said first valve seat;
a first locator having a first portion and a second portion, said
second portion being disposed in said raised central hub portion of said
first diaphragm member; and
wherein said first diaphragm member is sealingly seated at said
first valve seat below a first predetermined level of fluid pressure
differential applied thereon.
Hughes' invention relates to feeding bottles and attachments therefor for use by
infants, invalids or animals. Figures 1-5 show one embodiment of Hughes' invention in
which a body fitment is shaped for insertion in or attachment to the mouth of a bottle 2
in any suitable way to divide the space bounded by the bottle and a teat 3 into two
chambers 4, 5 conveniently referred to hereinafter as the bottle chamber and the teat
chamber. The former acts as a reservoir from which the supply of milk or other liquid
food is drawn, while the latter acts as a pumping chamber. In the illustrated form, the
body fitment consists of a tapered plug 6 to fit in the bottle mouth and "make joint"
therewith, without or with a flange 7 at the outer part to abut against the outer face of
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