Title:
MULTILAYER CONTAINER AND METHOD FOR INSPECTING AIR LEAKS IN MULTILAYER CONTAINER
Document Type and Number:
WIPO Patent Application WO/2019/039374
Kind Code:
A1
Abstract:
The multilayer container has an outer shell and an inner bag which shrinks as the contents therein are reduced. The outer shell is provided with an outside air introduction hole for providing communication between an external space and an intermediate space formed between the outer shell and the inner bag. A valve member for regulating the flow of air between the intermediate space and the external space is attached to the outside air introduction hole. The valve member is provided with: a cylindrical body having a hollow section disposed so as to enable communication between the intermediate space and the external space; and a movable body movably accommodated inside the hollow section. The cylindrical body has a stopper part for blocking the flow of air through the hollow section by catching the movable body when the movable body moves from the intermediate space side toward the external space side. The cylindrical body has, on an external space-side outer surface thereof, an adjacent region formed adjacent to an opening to the hollow section located on the external space side and a protrusion region protruding from the adjacent region. The valve member is configured such that in a state in which the movable body is caught by the stopper part, the height position of the external space-side end of the movable body in a perpendicular direction to the through-hole is higher than the height of the adjacent region.
More Like This:
| WO/2003/064269 | SYNTHETIC RESIN THIN-WALLED BOTTLE CONTAINER |
| JP4008697 | Hydration container |
Inventors:
TARUNO SHINSUKE (JP)
Application Number:
PCT/JP2018/030404
Publication Date:
February 28, 2019
Filing Date:
August 16, 2018
Export Citation:
Assignee:
KYORAKU CO LTD (JP)
International Classes:
B65D1/02
Domestic Patent References:
| WO2001006065A1 | 2001-01-25 | |||
| WO2016056385A1 | 2016-04-14 |
Foreign References:
| JP2016104644A | 2016-06-09 | |||
| JP2016104644A | 2016-06-09 |
Other References:
See also references of EP 3674224A4
Attorney, Agent or Firm:
SK INTELLECTUAL PROPERTY LAW FIRM et al. (JP)
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