Nonwicking bottom closure for a liquid-tight container
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-005/72
출원번호
US-0584869
(1984-02-29)
발명자
/ 주소
Bachner Larry G. (Barrington IL)
출원인 / 주소
Nimco Corporation (Crystal Lake IL 02)
인용정보
피인용 횟수 :
13인용 특허 :
8
초록▼
A new carton blank configuration and a method of folding it to provide a liquid-tight, nonwicking carton or container bottom is disclosed. The scoring pattern and bottom panel configuration of the carton make possible the formation of a carton bottom having no exposed edges of the carton blank on th
A new carton blank configuration and a method of folding it to provide a liquid-tight, nonwicking carton or container bottom is disclosed. The scoring pattern and bottom panel configuration of the carton make possible the formation of a carton bottom having no exposed edges of the carton blank on the inside of the container without folding or slitting any bottom panel prior to the carton folding and sealing process. The carton blank is shaped and scored for folding and is substantially a flat container bottom. An extension tab extending from one of the two bottom panels allows for a nonwicking surface to be formed and tucked into the interior of the carton bottom during the bottom-forming process as the edges of the two bottom panels contact each other. The inside surface of the bottom panel not having an extension tab contacts the extension tab, folding the extension tab back along a score line. As the two bottom panels move closer together, the bottom panel with the extension tab is tucked under the other bottom panel, and the folded surface of the extension tab covers the gap between the various bottom panels of the carton bottom, leaving no exposed edges on the interior of the carton.
대표청구항▼
In a blank of foldable sheet material for a container having top closure panels, tabs, and fold lines for creating a liquid tight closure and first, second, third and fourth wall panels, said wall panels being joined by fold lines along their respective top edges to said top closure panels and tabs
In a blank of foldable sheet material for a container having top closure panels, tabs, and fold lines for creating a liquid tight closure and first, second, third and fourth wall panels, said wall panels being joined by fold lines along their respective top edges to said top closure panels and tabs and said wall panels being arranged side by side, each joined along a fold line to the panels adjacent to it, one of the wall panels having a side seam sealing arrangement, said wall panels being joined along fold lines at their respective bottom edges to an improved bottom panel arrangement comprising in combination: first and second end panels each having first, second, third and fourth edges, said first and second end panels being connected along their third edges by fold lines respectively to the bottom edges of said second and fourth wall panels, each of said first and second end panels having a triangular end tab and first and second triangular fold-in tabs, each of said first and second triangular fold-in tabs being connected along a fold line to said triangular end tab; first and second bottom panels having first, second, third and fourth edges, said first and second bottom panels being connected along their third edges by fold lines respectively to the bottom edges of said first and third wall panels, said first bottom panel being connected along its fourth edge by a fold line to the second edge of said first end panel, said second bottom panel being connected along its second edge by a fold line to the fourth edge of said first end panel and along its fourth edge by a fold line to the second edge of said second end panel, the length of said second bottom panel measured between its first and third edges being longer than the length of said first bottom panel measured between its first and third edges; and an extension tab having an inner edge and an outer edge, said extension tab being connected along its inner edge by a fold line to the first edge of said first bottom panel, said extension tab being narrower in width than the distance between said second and fourth edges of said first bottom panel, and said extension tab protruding out from the first edge of said first bottom panel such that the portion of the first edge of said first bottom panel on either side of said extension tab is closer to said wall panels than the outer edge of said extension tab.
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이 특허에 인용된 특허 (8)
Shirakawa ; Kiyoshi, Bottom structure of cardboard type liquid packing container.
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