(57) The invention concerns a closure for zipper ends (7a, 7b) of liquid or gas tight
zipper(s) (9). The closure (1) comprises a first plate (11) and a second plate (12),
a sealing ring (2) of an elastomeric material disposed between said first and second
plate, a clamp (10) for tightening said first plate (11) and said second plate (12)
towards each other. The sealing surface of said sealing ring has at least a continuous
inner loop-ridge (3a), at least a continuous outer loop-ridge (3b), and at least first
join-ridges (4a), each of which bridging two points of said outer loop-ridge (3b).
The sealing surface also has a first groove (5a) between said inner loop-ridge and
said outer loop-ridge together with said first join-ridges, and second grooves (5b)
between said first join-ridges and said outer loop-ridge. The sealing ring (2) is
seated on said first plate (11) in a position, where said loop-ridges together with
said join-ridges are to press at least against said chains of zipper(s), and said
loop-ridges are to press against said sheet material portions.
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