| 摘要 |
Improvements to hollow collapsible or foldable plastic containers (10) of circular bellows (26) like configuration capable of manufacture on current plastic blow molding equipment with current plastic materials approved for contact with foods and beverages are disclosed. A floating sleeve (20) extends downwardly about the outside of the container from an attachment (22) to the container (10) adjacent the upper rim and opening of the container. The bellows (26) of the container (10), when fully folded cause the container (10) to substantially fit within the downwardly extending sleeve (20). The bellows (26) over center and fold to retain the folded condition without external assistance thus providing a self-latching feature to retain the container in the sleeve. The container (10) can be folded bellow (26) by bellow (26) as the contents are used thus retaining the surface of the container contents adjacent the opening in the top of the container. |
