Synthetic resin multilayer bottle
AssigneeHokkai Can Co., Ltd.
InventorAkihiro YAMAGUCHI
Life of this patent
Estimating the term…
Abstract
A synthetic resin multilayer bottle includes an outer shell bottle and an inner container. The outer shell bottle is capable of restoring itself to its original shape against external pressure. The shoulder portion has a polygonal pyramidal shape, and the bottom portion has a polygonal pyramidal shape, including ridge lines continuing to the extended lines of the polygonal pyramidal ridge lines of the shoulder portion. The inner container includes a an inner container body having a shape extending along the internal shape of the outer shell bottle. It further includes an air passage formed between the outer mouth portion and the inner mouth portion.
Claims11
A synthetic resin multilayer bottle comprising:
- an outer shell bottle including
- a cylindrical outer mouth portion,
- a shoulder portion connected to the outer mouth portion,
- a body portion connected to the shoulder portion,
- a bottom portion connected to the body portion, and
- a ground contact portion connected to the bottom portion,
- the outer shell bottle being capable of restoring itself to its original shape against external pressure,
- the shoulder portion having a polygonal pyramidal shape at least at a portion thereof connected to the outer mouth portion,
- the body portion having a circular cross section orthogonal to an axis,
- the bottom portion having a polygonal pyramidal shape at least at a portion thereof connected to the ground contact portion, the polygonal pyramidal shape having ridge lines continuing to extended lines of polygonal pyramidal ridge lines of the shoulder portion;
- an inner container including
- a cylindrical inner mouth portion arranged on an inner circumferential side of the cylindrical outer mouth portion of the outer shell bottle, and
- an inner container body connected to the inner mouth portion and having a shape extending along an internal shape of the outer shell bottle, the inner container being deformed by external pressure;
- and
- an air passage formed between the outer mouth portion and the inner mouth portion and introducing outside air into a gap between the outer shell bottle and the inner container.
A synthetic resin multilayer bottle comprising:
- an outer shell bottle including
- a cylindrical outer mouth portion,
- a polygonal pyramidal shoulder portion connected to the outer mouth portion,
- a polygonal cylindrical upper body portion connected to the shoulder portion and including ridge lines continuing to the polygonal pyramidal ridge lines,
- an intermediate body portion connected to the upper body portion, and
- a polygonal cylindrical lower body portion connected to the intermediate body portion and including ridge lines continuing to extended lines of ridge lines of the polygonal cylindrical upper body portion, and
- a bottom portion connected to the lower body portion, the outer shell bottle being capable of restoring itself to its original shape against external pressure;
- an inner container including
- a cylindrical inner mouth portion arranged on an inner circumferential side of the cylindrical outer mouth portion of the outer shell bottle,
- an inner container body connected to the inner mouth portion and having a shape extending along an internal shape of the outer shell bottle, the inner container being deformed by external pressure;
- and
- an air passage formed between the outer mouth portion and the inner mouth portion and introducing outside air into a gap between the outer shell bottle and the inner container.
A polyester resin blow-molded multilayer bottle comprising:
- an outer shell bottle including
- a cylindrical outer mouth portion
- a shoulder portion connected to the outer mouth portion,
- a body portion connected to the shoulder portion,
- a bottom portion connected to the body portion and having a recessed portion raised on the inner circumferential side into the bottle, the outer shell bottle being capable of restoring itself to its original shape against external pressure;
- an inner container including
- a cylindrical inner mouth portion arranged on an inner circumferential side of the cylindrical outer mouth portion of the outer shell bottle, and
- an inner container body connected to the inner mouth portion and having a shape extending along an internal shape of the outer shell bottle, the inner container being deformed by external pressure;
- and
- an air passage formed between the outer mouth portion and the inner mouth portion and introducing outside air into a gap between the outer shell bottle and the inner container,
- the recessed portion having a frustum shape, and the inner container being in tight contact with the outer shell bottle at the recessed portion.
A polyester resin blow-molded multilayer bottle comprising:
- an outer shell bottle including
- a cylindrical outer mouth portion,
- a shoulder portion connected to the outer mouth portion,
- a body portion connected to the shoulder portion, and
- a bottom portion connected to the body portion and having a recessed portion raised on the inner circumferential side into the bottle, the outer shell bottle being capable of restoring itself to its original shape against external pressure;
- an inner container including
- a cylindrical inner mouth portion arranged on an inner circumferential side of the cylindrical outer mouth portion of the outer shell bottle, and
- an inner container body connected to the inner mouth portion and having a shape extending along an internal shape of the outer shell bottle, the inner container being deformed by external pressure;
- and
- an air passage formed between the outer mouth portion and the inner mouth portion and introducing outside air into a gap between the outer shell bottle and the inner container, the polyester resin blow-molded multilayer bottle further comprising
- a release agent layer containing liquid paraffin, the release agent layer being provided at least between the shoulder portion, the body portion, and the bottom portion except for the recessed portion of the outer shell bottle and the portion of the inner container extending along the shoulder portion, the body portion, and the bottom portion except for the recessed portion.
Dependencies are inferred from the claim text.