Container for sealingly containing a fluid

Details Container for sealingly containing a fluid Container for sealingly containing a fluid

1988-03-04

1989-07-25

Peters, Jr., Joseph F.

Buoys, rafts, and aquatic devices

Rafts

Inflatable

441 41, 13751215, A41D 1300

Patent

active

048509124

ABSTRACT:
A container for sealingly containing a fluid is made from first and second thermoplastic container films bonded together around a rectangular periphery except where an inlet port is formed. A first bonded together portion extends the inlet port along one side, with a plurality of non-bonded together segments spaced therealong. A check valve is provided in each non-bonded together segment. The check valve is made from two rectangular thermoplastic valve films bonded together to form a fluid pipe. The fluid pipe has a tip opening and a valve body to allow flow through the fluid pipe from the tip opening but which prevents a reverse flow. A respective valve film is bonded at the tip opening to an adjacent container film so that the guide tube is fluid tight except for the inlet port and the tip openings. Second bonded together portions are also provided between adjacent check valves in order to form a plurality of container members whose only egress is a respective check valve. Preferably, the width of the second bonded together portion is substantially larger than the first bonded together portion to allow cutting thereof. In addition, the valve body is a folded over rectangular thermoplastic film defining two flaps whose respective lateral sides are bonded to a respective overlapping adjacent long side of the fluid pipe. An intermediate bonded together portion of the flaps can also be provided.

REFERENCES:
patent: 3895396 (1975-07-01), Amarantos
patent: 4674532 (1987-06-01), Koyanagi

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