Appeal 2007-0343
Application 09/745,702
closure 30 and the hinged base 53 of the bin is opened for removal of the
packages through the end of the bin portion. (Richards, col. 3, ll. 4-54.)
Richards teaches that
[e]ven if the twisted seals between the packages
become loosened, the lid and the newly formed
topmost twisted seal will prevent the escape of
odours, vapours and gases to the ambient
atmosphere. However, it has been found that when
the tubing 2 is made of high density polyethylene
the twisted joints remain remarkably tight.
(Richards, col. 3, ll. 54-60.)
Richards discloses a severing means incorporated in the lid 31
(Richards, col. 3, l. 61 to col. 4, l. 22) but also teaches that "a cutter for
severing the topmost package from the remainder of the flexible tubing can
be provided beneath the pack location" (Richards, col. 5, ll. 2-4).
Meissner teaches application of adhesive within the open end of a
container as an improvement to the common practice of merely closing the
open end of the container as by folding or twisting and then fixing the same
with a tape, cord or metal fastener to obtain a more secure and perhaps
leakproof container (Meissner, col. 1, ll. 11-16 and 36-41).
The particular method of adhesive application disclosed by Meissner,
as illustrated in Figs. 4 and 5, involves applying and expanding a gob 41 of
film-forming material within the open end of a bag 45 to form a bubble 51 of
desired size. The bag is then twisted at the area 53 within which the bubble
51 is located, thereby deforming the bubble 51 and progressively lining or
coating the internal surfaces of the bag until the bubble ruptures. (Meissner,
col. 5, ll. 43-52.)
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