| 摘要 |
This invention relates to a novel device for small, extremely flexible thin film plastic bags having short flat dispenser outlets, thereby making it possible to easily grasp and squeeze it open while shearing off a tack-welded sealed outlet, and when up-ended, can, for some easy-flow products, regulate its flow; all done using only one hand; said device may be inserted within, and bonded therein to the thin film chamber walls of plastic bags having conventional simple reclosable outlets; or incorporated during the original fabrication of the thin film plastic bag, particularly those having "Zip-Loc" or equal interlocking closure joints, with the usual alignment problems; said simple device consists of a pair of nested flexible and resilient plastic curved quadrant clamps with novel guide mouth attachments which makes it possible to squeeze the thin gauge film chamber walls manually for opening and for dispensing when up-ended, which upon release of the squeeze effort, automatically self closes to form a dust tight seal; said nested clamps may be tack-welded at its outlet for protection against pilfering of contents which, upon the initial squeeze-to-open operation by the customer shears for dispensing; novel improvements for making the curved clamps more than dust tight are offered, along with closure outlets that do not require scissor cutting or so-called easy tear sealed closures.
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