Title:
STRUCTURE OF FLUID CONTAINER AND METHOD AND APPARATUS FOR PRODUCING THE FLUID CONTAINER
Document Type and Number:
WIPO Patent Application WO2005003016
Kind Code:
A3
Abstract:
A structure of check-valves [32a, 32b] for bonding to a fluid container [30] and a production apparatus of fluid container [30] which is capable of reliably keeping the expansion of the fluid container without any fluid leakage after inflating the fluid container. As the check-valve is bonded to only one of thermoplastic container films [31a, 31b], both films of the check-valve are fixed to one of the container films, thereby preventing the reverse flow by tightly closing the check valve. As a result, the expansion of the fluid container is reliably maintained after the fluid container is inflated. The manufacturing apparatus [70] includes an up-down roller controller [74] which precisely positions the film to form the check valve. As a result, the manufacturing apparatus can produce the fluid container having the reliable check valves.
Inventors:
KOYANAGI YOSHIHIRO (JP)
YOSHIFUSA KATSUTOSHI (US)
NAKAGAWA KENNETH (US)
YOSHIFUSA KATSUTOSHI (US)
NAKAGAWA KENNETH (US)
Application Number:
PCT/US2004/021032
Publication Date:
November 17, 2005
Filing Date:
June 28, 2004
Export Citation:
Assignee:
KOYANAGI YOSHIHIRO (JP)
YOSHIFUSA KATSUTOSHI (US)
NAKAGAWA KENNETH (US)
YOSHIFUSA KATSUTOSHI (US)
NAKAGAWA KENNETH (US)
International Classes:
B31B19/84; B65D81/07; B65D30/24; B65D81/05; F16K15/14; (IPC1-7): B65D27/20
Foreign References:
| US5469966A | 1995-11-28 | |||
| US4850912A | 1989-07-25 | |||
| US5261466A | 1993-11-16 | |||
| US6067778A | 2000-05-30 | |||
| US2821338A | 1958-01-28 | |||
| US3929178A | 1975-12-30 |
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