Easily openable can end, container, and methods of forming
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-017/34
B65B-007/28
B65B-061/24
B65B-063/08
B65D-017/00
출원번호
US-0062321
(2009-08-06)
등록번호
US-9016034
(2015-04-28)
우선권정보
EP-08163704 (2008-09-04)
국제출원번호
PCT/EP2009/060243
(2009-08-06)
§371/§102 date
20110304
(20110304)
국제공개번호
WO2010/026019
(2010-03-11)
발명자
/ 주소
Hall, Jason John
출원인 / 주소
Crown Packaging Technology, Inc.
대리인 / 주소
Baker & Hostetler LLP
인용정보
피인용 횟수 :
0인용 특허 :
86
초록▼
An easily openable can end and associated methods include an end panel, a score line formed in the end panel to define a prearranged opening area, a tab, the tab having a handle and a rivet securing the tab to the end panel. In particular, the end panel of the can end is provided with at least one m
An easily openable can end and associated methods include an end panel, a score line formed in the end panel to define a prearranged opening area, a tab, the tab having a handle and a rivet securing the tab to the end panel. In particular, the end panel of the can end is provided with at least one moveable portion contactable with the lower surface of the tab at a location between the rivet and the end of the handle of the tab, the moveable portion being deformable upwardly under influence of pressure to push against the lower surface of the tab and thereby incline the handle of the tab away from the end panel to define a gap under the tab.
대표청구항▼
1. An easily openable can end comprising: an end panel that includes a perimeter portion and at least one moveable portion disposed within the perimeter portion,a score line formed in the end panel defining an opening area,a tab secured to the end panel by a rivet, the tab having a handle,wherein th
1. An easily openable can end comprising: an end panel that includes a perimeter portion and at least one moveable portion disposed within the perimeter portion,a score line formed in the end panel defining an opening area,a tab secured to the end panel by a rivet, the tab having a handle,wherein the at least one moveable portion is moveable between (i) a first position, whereby the at least one moveable portion is spaced away from a lower surface of the tab so as to define a concave well that extends below a top surface of the perimeter portion and, (ii) a second position, whereby the at least one moveable portion contacts the lower surface of the tab to thereby incline the handle of the tab away from the end panel to define a gap under the tab. 2. A can end as claimed in claim 1, wherein the at least one moveable portion is a bistable panel. 3. A can end as claimed in claim 1, wherein, in its second position, the at least one movable portion is deformed upwardly under influence of pressure to define a convex protrusion. 4. A can end as claimed in claim 3, wherein a portion of the tab extends over the concave well, the portion inclined inwardly within the concave well to thereby facilitate efficient stacking of the can end upon another can end. 5. A can end as claimed in claim 1, wherein a force required to cause the at least one moveable portion to deform from its second position to its first position is greater than that required to deform the at least one moveable portion from its first position to its second position. 6. A can end as claimed in claim 5, wherein the at least one moveable portion includes a plastically deformable region. 7. A can end as claimed in claim 6, wherein the plastically deformable region includes a region of reduced thickness relative to the thickness of the end panel outward of the at least one moveable portion. 8. A can end as claimed in claim 6, wherein the at least one moveable portion is generally planar in its first position and is deformable to its second position under influence of pressure to protrude upwardly, all or part of the at least one moveable portion thereby plastically deforming into its second position. 9. A can end as claimed in claim 1, wherein the at least one moveable portion comprises two moveable portions, each symmetrically disposed about the longitudinal axis of the tab and contactable with the lower surface of the tab, the two moveable portions adapted to simultaneously upwardly deform under influence of pressure to push against the lower surface of the tab and thereby incline the handle of the tab away from the end panel. 10. A can end as claimed in claim 1, wherein the gap under the tab enhances finger access of a user. 11. A container comprising: a container body; anda can end seamed to the container body, the can end including: an end panel having a perimeter portion and at least one moveable portion disposed within the perimeter portion,a score line formed in the end panel defining an opening area,a tab secured to the end panel by a rivet, the tab having a handle,wherein the at least one moveable portion is moveable between (i) a first position, whereby the at least one moveable portion is spaced away from a lower surface of the tab so as to define a concave well that extends below a top surface of the perimeter portion and, (ii) a second position, whereby the at least one moveable portion contacts the lower surface of the tab to thereby incline the handle of the tab away from the end panel to define a gap under the tab. 12. A container as claimed in claim 11, wherein the gap under the tab enhances finger access of a user. 13. A method for assembling an easily openable container, comprising the following steps: a. filling an open-topped container body with either a carbonated liquid product or other product that expels gases during storage;b. positioning a can end including an end panel, a score line defining an opening area, a tab secured to the end panel by a rivet, the tab having a handle, the end panel including a perimeter portion and at least one moveable portion disposed within the perimeter portion, the at least one moveable portion being moveable between a first position and a second position, when in the first position the at least one moveable portion is spaced away from a lower surface of the tab to define a concave well that extends below a top surface of the perimeter portion; andc. securing the can end to the filled container body to form a sealed container;wherein the product positively pressurizes the inside of the container such that the moveable portion of the can end deforms upwardly under pressure to the second position in which the moveable portion pushes against the lower surface of the tab and thereby inclines the handle of the tab away from the end panel so as to define a gap under the tab. 14. A method as claimed in claim 13, wherein the gap under the tab enhances finger access of a user. 15. A method for assembling an easily openable container, comprising the following steps: a. filling an open-topped container body with a product to leave a headspace;b. positioning a can end including an end panel, a score line defining an opening area, a tab secured to the end panel by a rivet, the tab having a handle, and the end panel including a movable portion in a first position spaced away from a lower surface of the tab;c. securing the can end to the filled container body to form a sealed container; andd. reforming a portion of the sealed container inwardly to reduce the volume of the headspace and thereby positively pressurize the inside of the container such that the movable portion of the end panel deforms upwardly under positive pressure inside the container from the first position to a raised, second position in which the movable portion of the end panel pushes against a lower surface of the tab and thereby inclines the handle of the tab away from the end panel to define a gap under the tab. 16. A method as claimed in claim 15, wherein the gap under the tab enhances finger access of a user. 17. A method for assembling an easily openable container for a food product, comprising the following steps: a. filling an open-topped container body with a food product;b. positioning a can end including an end panel, a score line defining an opening area, a tab secured to the end panel by a rivet, the tab having a handle, the end panel including at least one moveable portion in a first position spaced away from a lower surface of the tab;c. securing the can end to the filled container body to form a sealed container; andd. heating the sealed container; wherein the heating step results in a build-up of positive pressure within the container such that the moveable portion of the end panel deforms upwardly under positive pressure inside the container from the first position to a raised, second position in which the moveable portion of the end panel pushes against a lower surface of the tab and thereby inclines the handle of the tab away from the end panel to define a gap under the tab. 18. A method as claimed in claim 17, wherein the action of the positive pressure plastically deforms the moveable portion such that on cooling of the container to ambient temperature the moveable portion remains in its upwardly deformed state to thereby retain the gap under the handle the tab. 19. A can end as claimed in claim 17, wherein the gap under the tab enhances finger access of a user.
Taube William L. (Murrietta CA) Roberts David A. (Wokingham GB2), Method of forming a one-piece can body having an end reinforcing radius and/or stacking bead.
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