Extensible and contractible double straw

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United States of America Patent

PATENT NO 4688721
SERIAL NO

06833069

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Abstract

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A straw of telescopic construction permits the straw, when collapsed, to be no longer than a beverage container to which it is attached but long enough, when extended, to reach the container's bottom and extend beyond the top of the container. The straw includes means to prevent the inner straw being pushed through the bottom end of the outer straw and a structure which interlocks to positively hold the extended straws in extended position against inadvertent telescopic collapse. The structure includes an air seal at the straw juncture when they are fully extended.

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Patent Owner(s)

Patent OwnerAddress
SANYO SHIKI KABUSHIKI KAISHA A CORP OF JAPAN2235-3 DENPO FUJI-SHI SHIZUOKA-KEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inaba, Koichi 1994 Denpo Takishita, Fuji-shi Shizuoka-ken, JP 31 596

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