End closure with a ring pull actuated secondary vent
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-017/00
B21D-051/38
출원번호
US-0198174
(2014-03-05)
등록번호
US-9694935
(2017-07-04)
발명자
/ 주소
Scott, Anthony J.
출원인 / 주소
Ball Corporation
대리인 / 주소
Sheridan Ross P.C.
인용정보
피인용 횟수 :
0인용 특허 :
167
초록▼
The present invention relates to a container end closure that generally comprises a pour opening and a secondary vent opening which improves venting during emptying of contents from the container. In particular, the present invention relates to an end closure for a container having scores defining a
The present invention relates to a container end closure that generally comprises a pour opening and a secondary vent opening which improves venting during emptying of contents from the container. In particular, the present invention relates to an end closure for a container having scores defining a secondary vent opening which may optionally be opened. The secondary vent opening has a significantly larger area then vents of prior art designs and thereby improves pour rate and smoothness of pour. After the pour opening is opened using a pull tab interconnected to the end closure, a consumer may selectively open the secondary vent opening by pulling back on the tab.
대표청구항▼
1. A metallic end closure with a secondary vent, comprising: a peripheral curl adapted for interconnection to a neck of a container;a chuck wall interconnected to said peripheral curl and extending downwardly therefrom;a countersink interconnected to a lower portion of said chuck wall, said counters
1. A metallic end closure with a secondary vent, comprising: a peripheral curl adapted for interconnection to a neck of a container;a chuck wall interconnected to said peripheral curl and extending downwardly therefrom;a countersink interconnected to a lower portion of said chuck wall, said countersink comprising an inner panel wall and an outer panel wall;a central panel interconnected to said inner panel wall of said countersink;a tab having a forward edge and a rear edge, said tab operably interconnected to said central panel, wherein said tab is substantially centered on said central panel;a first severable score line in said central panel having an origination point and a termination point, wherein said first severable score line defines a first tear panel, a pour opening, and a first hinge, and wherein said first tear panel is positioned below said forward edge of said tab;a second severable score line positioned proximate to said first severable score line on a first side of a vertical axis passing through a center of said central panel, said second severable score line extending away from said first score line at approximately a right angle;a first transition portion between said first severable score line and said second severable score line;a third severable score line positioned proximate to said first severable score line and said first hinge, said third severable score line positioned on a second side of said vertical axis, said third severable score line extending away from said first hinge, said third severable score line oriented substantially parallel to said second severable score line;a second transition portion between said first severable score line and said third severable score line, said first and second transition portions being adapted to prevent a fracture propagation of said first severable score line into said second and third severable score lines, wherein said first and second transition portions comprise at least one of: a score deviation in said second and third severable score lines;a void area between said first severable score line and said second and third severable score lines;a variation in residual depth of said first severable score line and said second and third severable score lines; anda score path of said second and third severable score lines oriented tangentially to a direction of fracture of the first severable score line; anda second hinge defined at least partially by a channel extending downwardly from an exterior surface of said central panel toward an interior surface of said central panel, wherein said second and third severable score lines and said second hinge define a second tear panel and said secondary vent when said tab is pulled away from said pour opening. 2. The metallic end closure of claim 1, wherein said second and third severable score lines can be selectively severed by pulling said rear edge of said tab after said forward edge is used to sever said first severable score line. 3. The metallic end closure of claim 1, wherein said tab is a stay on tab which is interconnected to said central panel with a rivet. 4. The metallic end closure of claim 3, wherein said tab further comprises an enlarged finger hole formed between said rivet and said rear edge of said tab. 5. The metallic end closure of claim 3, wherein said tab further comprises a grip area formed between said rivet and said rear edge of said tab, wherein said grip area comprises at least one of ridges, grooves, bumps, protrusions, or other friction surfaces configured to facilitate grasping and pulling said tab. 6. The metallic end closure of claim 1, wherein said second and third severable score lines are selectively frangible by pulling said tab, wherein said end closure can be used as a traditional end closure with a moderate sized opening, and wherein said secondary vent may be selectively opened to increase the size of the opening. 7. The metallic end closure of claim 1, wherein said channel of said second hinge has a length of about 0.100 inches to about 1.00 inches. 8. The metallic end closure of claim 1, wherein said channel of said second hinge has a depth extending about 0.001 inches to about 0.030 inches into said exterior surface. 9. The metallic end closure of claim 1, wherein said second severable score line is between approximately 0.375 inches and approximately 1.000 inches from said third severable score line at a point on a horizontal axis passing through said center of said central panel, said horizontal axis substantially perpendicular to said vertical axis, wherein said second and third severable score lines have a minimum length of approximately 0.675 inches, and wherein said second and third severable score lines flare outwardly to form termination features, said termination features having a radius of curvature between approximately 0.060 inches and 0.500 inches. 10. The metallic end closure of claim 1, further comprising a second score line termination feature and a third score line termination feature, the termination features comprising curved segments of said second and third severable score lines that depart from generally linear portions of said second and third severable score lines, the termination features adapted to prevent said second tear panel from detaching from said central panel. 11. The metallic end closure of claim 1, wherein said second severable score line and said third severable score line each have a score residual thickness of between approximately 0.0025 inches and approximately 0.0045 inches. 12. A selectively adjustable end closure adapted for interconnection to a neck of a beverage container, comprising: a peripheral curl;a chuck wall extending downwardly from said peripheral curl;a countersink interconnected to a lower end of said chuck wall, said countersink comprising an outer panel wall and an inner panel wall;a central panel interconnected to said inner panel wall of said countersink;a pull tab having a forward edge and a rear edge, said pull tab operably interconnected to said central panel, wherein said pull tab is substantially centered on said central panel;a first severable score line in said central panel having an origination point and a termination point, wherein said first severable score line defines a first tear panel, a pour opening, and a first hinge, wherein said first tear panel is positioned below said forward edge of said pull tab;a second severable score line positioned proximate to said first severable score line on a first side of a vertical axis passing through a center of said central panel, said second severable score line extending away from said first severable score line at approximately a right angle;a first transition zone between said first severable score line and said second severable score line;a third severable score line positioned proximate to said first severable score line and said first hinge, said third severable score line positioned on a second side of said vertical axis, said third severable score line extending away from said first hinge, said third severable score line oriented substantially parallel to said second severable score line, wherein said second severable score line is separated from said third score line by a distance of between approximately 0.375 inches and approximately 1.000 inches at a point on a horizontal axis passing through said center of said central panel, said horizontal axis substantially perpendicular to said vertical axis, wherein said second and third severable score lines have a minimum length of approximately 0.675 inches, wherein said second and third severable score lines flare outwardly to form termination features, said flares having a radius of curvature between approximately 0.060 inches and 0.500 inches, and wherein said second and third severable score lines have a score residual thickness between approximately 0.0025 inches and approximately 0.0045 inches;a second transition zone between said first severable score line and said third severable score line, said first and second transition zones comprising at least one of: a score deviation in said second and third severable score lines;a void area between said first severable score line and said second and third severable score lines;a variation in residual depth of said first severable score line and said second and third severable score lines; anda score path of said second and third severable score lines oriented tangentially to a direction of fracture of said first severable score line, anda second hinge defined at least partially by a reduced thickness between an exterior surface and an interior surface of said central panel, said second hinge arranged between said second and third severable score lines, wherein said second and third severable score lines and said second hinge define a second tear panel and a secondary vent when said pull tab is pulled away from said pour opening. 13. The selectively adjustable end closure of claim 12, wherein said second hinge is positioned approximately 0.500 inches to approximately 0.850 inches from a center of the end closure. 14. The selectively adjustable end closure of claim 12, wherein said reduced thickness of said second hinge comprises a channel with a depth between approximately 0.001 inches and 0.030 inches. 15. The selectively adjustable end closure of claim 12, wherein said reduced thickness of said second hinge has a length of between approximately 0.100 inches and approximately 1.00 inches.
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이 특허에 인용된 특허 (167)
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