Easy-open handle bag for medium to heavy duty applications

a technology of handle bags and handles, applied in the direction of flexible container closures, transportation and packaging, sacks, etc., can solve the problems of not being able to support medium to heavy loads separately, neither can the perforated tear lines of the easy-open feature resist tearing or bursting, and achieve the effect of resisting tearing or bursting

Inactive Publication Date: 2005-11-17
CURWOOD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004] The present invention provides flexible bags that resists tearing or bursting during the storage and transportation of medium to heavy duty loads which may range in weight from about five pounds to about fifty pounds or more. The present invention also provides flexible bags ...

Problems solved by technology

While these bags are capable of carrying medium to heavy load and are easy to open, they are not suitable for large or bulky items contained therein which require a different means of removal from the package.
While these bags allow for ea...

Method used

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  • Easy-open handle bag for medium to heavy duty applications
  • Easy-open handle bag for medium to heavy duty applications
  • Easy-open handle bag for medium to heavy duty applications

Examples

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Embodiment Construction

[0018] As used herein, the term “multilayer” refers to a plurality of layers in a single film structure generally in the form of a sheet or web which can be made from a polymer material or a non-polymer material bonded together by any conventional means known in the art, i.e., coextrusion, extrusion coating, and lamination, vacuum vapor deposition coating, solvent coating, emulsion coating, or suspension coating or combination of one or more thereof. The multilayer film of the present invention may include as many layers as desired, preferably, at least three polymer layers.

[0019] As used herein, the phrase “thermoplastic” refers to a polymer or polymer mixture that softens when exposed to heat and returns to its original condition when cooled to room temperature. In general, thermoplastic materials include, but are not limited too, synthetic polymers such as polyamides, polyolefins, polyalkyl acrylates, polyesters, ethylene / vinyl alcohol copolymers, and the like. Thermoplastic m...

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Abstract

A bag for carrying medium to heavy loads comprising a body formed from a flexible thermoplastic film, such that the body comprises a first panel and an opposing second panel, a receptacle cavity formed the first and second panels, an integral handle opening, and an easy-open feature which extends longitudinally from a top seal to an opposing bottom seal and positioned adjacent to a first side seal of the body. The easy-open feature comprises at least one of (i) at least one line of structural weakness in the thermoplastic film, (ii) a reclosable fastener adhered to the thermoplastic film, or (iii) a combination of (i) and (ii).

Description

BACKGROUND OF THE INVENTION [0001] The present invention generally relates to thermoplastic handle bags suitable for storing and transporting medium to heavy loads, e.g., frozen foods such as chickens, turkeys, and the like comprising an easy-open feature, and more particularly, to thermoplastic handle bags having an easy-open feature adapted for the removal of large or bulky medium to heavy loads contained therein. [0002] Thermoplastic bags having a handle opening and / or an easy-open feature which support heavy granulated items such as salt pellets, pet food, fertilizer, etc. are known in the art. U.S. Pat. No. 6,231,232 to Warr is directed to synthetic bags primarily for granulated contents which are capable of carrying loads of from 10 to 50 pounds and which include a hand-insertion slit below the top seal of the bag that may serve as a handle. U.S. Pat. Nos. 5,482,376 and 5,601,369, both to Moseley et al. also disclose bags adapted to hold pourable contents from 20 to 150 pounds...

Claims

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Application Information

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IPC IPC(8): B65D33/08B65D33/25B65D75/58
CPCB65D33/08B65D75/5805B65D33/2591B65D33/2575
Inventor BERBERT, OTACILIO TEIXEIRAFULLER, SCOTT A.
Owner CURWOOD INC
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