Can end with strengthening bead configuration
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-051/18
B65D-017/40
B65D-017/34
B65D-017/00
출원번호
US-0531060
(2012-06-22)
등록번호
US-8978915
(2015-03-17)
발명자
/ 주소
Burleson, Jr., Lynn A.
Phillips, John L.
Gust, Donald M.
Bloedorn, Rohm E.
출원인 / 주소
Silgan Containers LLC
대리인 / 주소
Reinhart Boerner Van Deuren S.C.
인용정보
피인용 횟수 :
4인용 특허 :
71
초록▼
A can end that is attached to a metal can body with a bottom end forming a cavity that may be filled with food, liquid, etc. The can end is made of metal with a bead configuration located in the outer circumference of the can end that increases its resistance to deformation when subjected to high pr
A can end that is attached to a metal can body with a bottom end forming a cavity that may be filled with food, liquid, etc. The can end is made of metal with a bead configuration located in the outer circumference of the can end that increases its resistance to deformation when subjected to high pressure cooking environments and assists in preventing the can end from separating along the frangible score.
대표청구항▼
1. A metal, food can, can end comprising: a center panel wherein a center point of the can end is located within the center panel;a bead panel located radially outside of the center panel, the bead panel comprising; an inner upward bead defining a first local maximum;an inner downward bead defining
1. A metal, food can, can end comprising: a center panel wherein a center point of the can end is located within the center panel;a bead panel located radially outside of the center panel, the bead panel comprising; an inner upward bead defining a first local maximum;an inner downward bead defining a first local minimum, the first local minimum located radially outside of the first local maximum;a central upward bead defining a second local maximum, the second local maximum located radially outside of the first local minimum;an outer downward bead defining a second local minimum, the second local minimum located radially outside of the second local maximum; andan outer upward bead defining a third local maximum, the third local maximum located radially outside of the second local minimum;a counter-sink section located radially outside of the bead panel and extending from an outer edge of the outer upward bead of the bead panel;a wall extending upward from an outer edge of the counter-sink section;a curved section extending radially outward from an upper edge of the wall, wherein the curved section is configured to be crimped with an upper end of a metal can body to form a seam; anda tab, wherein the outer downward bead is a continuous bead that is concentric with the outer circumference of the can end, and further wherein the inner downward bead is a non-continuous bead having a first end and a second end, the ends positioned on opposing lateral sides of the tab. 2. The metal can end of claim 1, further comprising: a frangible score formed in the material of the outer upward bead; andwherein the tab is configured to pivot to break the score allowing a portion of the can end located within the score to separate from a portion of the can end located outside of the score. 3. The metal can end of claim 2, further comprising a depression located within the center panel, wherein the tab comprises a gripping portion located above the depression, wherein the depression acts as a finger well facilitating user access to the gripping portion of the tab. 4. The metal can end of claim 1, wherein a radial distance from the center point of the can end to an innermost edge of the inner downward bead is greater than half of the radius of the can end. 5. The metal can end of claim 4, wherein a diameter of an outermost edge of the center panel is between 1.795 inches and 1.785 inches, wherein a diameter of the inner downward bead measured between opposing first local minima is between 2.095 and 2.085 inches, and wherein a diameter of the outer downward bead measured between opposing second local minima of the outer downward bead is between about 2.445 and 2.435 inches. 6. The metal can end of claim 5, wherein a diameter of the outer upward bead measured between opposing third local maxima is between 2.647 and 2.637 inches. 7. The metal can end of claim 1: wherein the first local minimum is vertically below the third local maximum;wherein a vertical distance between the first local minimum and the third local maximum is between 0.027 and 0.017 inches;wherein the second local minimum is vertically below the third local maximum;wherein a vertical distance between the second local minimum and the third local maximum is between 0.010 and 0.004 inches;wherein the first local maximum is vertically below the third local maximum;wherein a vertical distance between the first local maximum and the third local maximum is between 0.012 and 0.001 inches;wherein the second local maximum is between 0.000 and 0.014 inches vertically below the third local maximum or between 0.000 and 0.006 inches vertically above the third local maximum. 8. The metal can end of claim 1, further comprising the tab located at a 12 o'clock position on the can end, wherein at a 6 o'clock position, a vertical distance between the second local minimum and the third local maximum is between 0.01 and 0.004 inches, and wherein at the 12 o'clock position, a vertical distance between the second local minimum and the third local maximum is between 0.016 and 0.010. 9. The metal can end of claim 1: wherein the inner downward bead comprises a first curved section defining the first local minimum;wherein the outer downward bead comprises a second curved section defining the second local minimum;wherein the radius of curvature of the upper surface of the first curved section is between 0.029 and 0.019 inches; andwherein the radius of curvature of the upper surface of the second curved section is between 0.020 and 0.010 inches. 10. The metal can end of claim 1, wherein the inner downward bead is concentric with the outer downward bead for at least 180 degrees and less than 360 degrees of the can end. 11. The metal can end of claim 10, wherein the inner downward bead and the outer downward bead are configured to strengthen the can end to resist deformation that may occur when the pressure of the contents of the metal can body exceeds 20 pounds per square inch. 12. The metal can end of claim 11, wherein the can end is formed of double reduced steel with a thickness less than 75 gauge. 13. The metal can end of claim 12, wherein a vertical distance between the uppermost surface of the crown section and the lower most surface of the counter-sink section is less than 0.220 inches. 14. The metal can end of claim 11, wherein the can end is formed of double reduced steel with a thickness less than or equal to 68 gauge. 15. The metal can end of claim 14, wherein a vertical distance between the uppermost surface of the crown section and the lower most surface of the counter-sink section is less than or equal to 0.190 inches. 16. The metal can end of claim 1 coupled to the metal can body via the seam. 17. The metal can end of claim 1 coupled to one end of the metal can body via the seam, wherein a second can end is coupled to the other end of the metal can body via a second seam, wherein food is located within a cavity defined by the metal can body and the can ends.
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이 특허에 인용된 특허 (71)
Saunders William T. (Weirton WV), Abuse resistant, safety-edge, controlled-opening convenience-feature end closures.
Butcher,Gregory H.; Fultz,Kenneth F.; Mitchell,Mark R.; Stradling,David A.; Williams,Greg S., Non-circular can end with corner-mounted tab and tooling and a conversion press for providing same.
Butcher,Gregory H.; Fultz,Kenneth F.; Mitchell,Mark R.; Stradling,David A.; Williams,Greg S., Non-circular can end with corner-mounted tab and tooling and a conversion press for providing same.
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