Laminated bottle and pump device therefor
AssigneeYoshino Kogyosho Co., Ltd.
InventorsTsutomu Kobayashi, Akira Nishigami
Life of this patent
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Abstract
A laminated bottle including a bottle body having at least two layers, an outer layer and an inner layer, in order to prevent the outside of the bottle from collapse under a reduced pressure inside the bottle. The inner layer of the bottle body and the outer layer adjacent the inner layer are made to be freely peelable from each other, with the inner layer and the outer layer being at least partially bonded together at bonding band and locking portion locations. As the inner layer is peeled away from the outer layer and collapsed in a bag-like configuration upon vaporization or emptying of the bottle contents, deformation of the outer layer is not likely to occur.
Claims13
A laminated bottle comprising:
- a bottle body having a bottle mouth at an upper portion thereof and a bottom portion at a lower portion thereof, said bottle including at least one outer layer made of a synthetic resin and at least one inner layer made from a flexible synthetic resin;
- a bonding band provided longitudinally along said bottle body between said bottle mouth and said bottle bottom, said bonding band at least partially bonding said at least one inner layer to an adjacent said at least one outer layer, said at least one inner layer being freely peelable from said at least one outer layer at portions of said bottle body not bonded by said bonding band;
- a rib being formed along a bottom parting line of said bottle, said rib bonding each of said at least one inner layer to one another;
- a slit being formed in said at least one outer layer on said bottom portion of said bottle body providing an air entrance for air flow between said at least one outer layer and said at least one inner layer;
- and
- a lock portion provided on at least a portion of said bottom portion of said bottle body, said lock portion integrally retaining said at least one inner layer to said at least one outer layer.
Dependencies are inferred from the claim text.