DOUBLE-STRACTURE TUBE
A double-structure tube includes an exterior, a pump member, which includes an external cylinder having a first discharge outlet at one end and the inner cylinder having a second discharge outlet at one end, wherein the external cylinder and the inner cylinder are connected to each other at their ot...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A double-structure tube includes an exterior, a pump member, which includes an external cylinder having a first discharge outlet at one end and the inner cylinder having a second discharge outlet at one end, wherein the external cylinder and the inner cylinder are connected to each other at their other ends, respectively, and wherein the inner cylinder is placed in the exterior and the external cylinder is exposed, and a built-in balloon, which is coupled to the inner cylinder for plugging the second discharge outlet, wherein the exterior and the pump member are separably connected to each other, and wherein the built-in balloon is placed in the exterior. |
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