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Easy open self closing outlet for gable-top cartons

a self-closing and opening technology, applied in the direction of flexible containers, sacks, packaging, etc., can solve the problems of difficulty in opening and needing some skill to open easily

Inactive Publication Date: 2004-01-15
LAVERDURE ROLAND J A
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they have always suffered the disadvantage that they need some skill to open easily and are not reclosable to prevent spillage.
However, said spout requires two hands to initially open because of its tightly, factory applied threaded pouring spout cap; does not automatically self-close to prevent spillage when left un-capped, and again difficult to open after cap removal, because of the effort required to pull and remove the tamper-evident plastic pull ring within the pouring spout.
Furthermore, the curved outlet is not made of flexible polyethylene plastic but rather of vulcanized rubber.

Method used

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  • Easy open self closing outlet for gable-top cartons
  • Easy open self closing outlet for gable-top cartons
  • Easy open self closing outlet for gable-top cartons

Examples

Experimental program
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Effect test

Embodiment Construction

No. 1 Add extraneous parts such as new separate flexible and resilient thermoplastic PP or LDPE plastic strips to the standard polyethylene laminated paperboard to form a unified easy open self-closing milk carton dispenser, as previously described using a slightly modified Evergreen, or equal, gable-top milk carton packaging machine.

[0012] EMBODIMENT No. 2 Change and reinforce the standard gable-top milk carton polyethylene laminated paperboard blanks, for solely forming the easy open self-closing dispenser, with an easy tear-away tamper evident closure seal, without extraneous plastic to strips or additions. This is the preferred embodiment and is fully described under

[0013] A2 / . As stated above, the outlet opened upon squeezing, but only because of an existing outer bulge in the gable-top carton's sloped roof chamber wall portion, formed by the flap folding crease made in the original laminated paperboard blank. Squeezing, the pint size carton was easily accomplished; using thumb...

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Abstract

A manually operated easy to open, squeeze-to-open while lifting for pouring, self-closing spillage-free dispenser for standard gable-top milk cartons, said dispenser made from same polyethylene laminated paperboard used for making standard gable-top milk cartons formed and sealed by standard gable-top milk carton packaging machine with its clamping, compression, heating and sealing jaws, used to form and seal the original ridge line atop the roof of the gable roof portion, modified for forming and sealing the curved quadrant elongated slotted dispenser outlet, with a tamper-evident closure that can be easily removed by the tear-away indents provided.

Description

CROSS REFERRENCE TO RELATED APPLICATIONS[0001] This application relates to the "Self-Closing Valve With Tamper Evident Lip Seal Tab" Ser. No. 07 / 08 / 88, U.S. Pat. No. 4,917,267 granted Apr. 17, 1990, and to a continuation in part of U.S. patent application Ser. No. 10 / 033,640 now abandoned and new Application "Guided Clamps for Quick Easy Opening and Closing of Dispenser Outlet" application Ser. No. 10 / 384,233, Filing Receipt Date Mar. 10, 2003, released for quick opening of conventional thin film plastic bags.[0002] 1. Field of the Invention[0003] The invention's intent is to grab a good portion of the beverage gable-top paperboard carton and / or plastic bottle business, especially milk and gourmet coffee blend mixtures, by offering one pint and smaller conventional gable-top paperboard cartons, provided with this invention's unique easy open, squeeze-to-open, self-closing dispenser, that can be squeezed open while lifting said carton for pouring, using only one hand. For the one pin...

Claims

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Application Information

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IPC IPC(8): B65D33/16B65D33/25B65D33/30B65D75/00
CPCB65D33/1658B65D33/1666B65D75/008B65D33/30B65D33/2508
Inventor LAVERDURE, ROLAND J. A.
Owner LAVERDURE ROLAND J A
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