IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0216502
(2002-08-08)
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발명자
/ 주소 |
- Beck, Martin H.
- Connor, Dennis
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출원인 / 주소 |
- DTL Technology Limited Partnership
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
28 인용 특허 :
7 |
초록
▼
A handgrip formed in a wall of a plastics container, the wall having an interior, an interior surface, an exterior surface and a wall thickness and suitable for containing a carbonated beverage, including an integral structure formed of a central dome having a convex surface facing toward the adjace
A handgrip formed in a wall of a plastics container, the wall having an interior, an interior surface, an exterior surface and a wall thickness and suitable for containing a carbonated beverage, including an integral structure formed of a central dome having a convex surface facing toward the adjacent said exterior surface and at least two concentric annular troughs, each having an annular concave surface facing the adjacent said exterior surface, an outer frustum interconnected with each trough and connecting rings, each of curved cross-section having an annular concave surface facing toward the interior, to join, integrally, the frustums to the next outer trough and the outermost frustum to the container wall surrounding the handgrip, the handgrip having a thickness approximately equal to the wall thickness, wherein the handgrip does not extend radially outwardly of the wall. An associated container, blow mold and method are also included.
대표청구항
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1. A handgrip formed in a container wall of a plastics container, the container wall defining an interior of the container, an interior surface of the container, an exterior surface of the container and a wall thickness and the container being suitable for containing a liquid under pressure, the han
1. A handgrip formed in a container wall of a plastics container, the container wall defining an interior of the container, an interior surface of the container, an exterior surface of the container and a wall thickness and the container being suitable for containing a liquid under pressure, the handgrip comprising:a structure integral with the wall of the container and recessed with respect to the exterior surface of the container, the handgrip including a central dome having a convex surface extending toward the exterior surface of the container,at least an innermost concentric connecting ring and an outermost concentric connecting ring, with each connecting ring having an annular concave surface facing the interior of the container,at least an innermost annular trough and an outermost annular trough, each annular trough having an annular concave surface facing an adjacent portion of the exterior surface of the container,a first inner frustum interconnecting the dome to the innermost trough,a first outer frustum connecting the innermost trough to the innermost connecting ring,another outer frustum connecting the outermost annular trough with the outer most connecting ring,the outermost connecting ring joining integrally with the container wall surrounding the handgrip, andthe handgrip in the container wall having a thickness approximately equal to the container wall thickness surrounding the handgrip. 2. The handgrip of claim 1 wherein at least one other inner frustum connects the inner most connecting ring with the outermost annular trough. 3. The handgrip of claim 1 wherein each outer frustum has a straight longitudinal dimension in a range of from about 0.003 of an inch to about 0.05 of an inch. 4. The handgrip of claim 3 wherein the longitudinal dimension is at least about 0.005 of an inch. 5. The handgrip of claim 2 wherein each inner frustum has a straight longitudinal dimension in a range of from about 0.003 of an inch to about 0.05 of an inch. 6. The handgrip of claim 5 wherein the longitudinal dimension is at least about 0.005 of an inch. 7. The handgrip of claim 1 wherein the concave cross-section of each trough defines a cross-sectional surface having a radius of from about 0.005 of an inch to about 0.05 of an inch. 8. The handgrip of claim 7 wherein the radius is about 0.015 of an inch. 9. A handgrip formed in of claim 1 wherein a minimum radial spacing between the central dome and the adjacent exterior surface is about 0.013 of an inch. 10. The handgrip of claim 1 wherein the concave surface of each connecting ring has a radius in cross-section from about 0.09 of an inch to about 0.13 of an inch. 11. The handgrip of claim 1 wherein at least two other intermediate inner frustums, at least one other intermediate connecting ring and at least one other intermediate annular trough connects the inner most connecting ring with the outermost annular trough. 12. The handgrip of claim 11 wherein the central dome, each inner frustum, each outer frustum, each connecting ring and the container wall all smoothly blend together to form a substantially constant thickness wall. 13. The handgrip of claim 11 wherein the troughs increase in diameter from the dome to the wall of the container and the troughs and inner and outer frustums increasingly extend further into the container relative to the wall, from the outermost connecting ring to the dome. 14. The handgrip of claim 1 wherein the central dome, the troughs, the outer frustums, the inner frustum, the connecting rings and the container wall smoothly blend together to form a substantially constant thickness wall. 15. The handgrip of claim 1 wherein the troughs increase in diameter from the dome to the wall of the container and the troughs and the inner and outer frustums increasingly extend further into the container relative to the wall, from the outermost connecting ring to the dome. 16. The handgrip a container wall of a plastics container the container wall defining an i nterior of the container, an interior surface of the container, an exterior surface of the container and a wall thickness and the container being suitable for containing a liquid under pressure, the handgrip comprising:a structure integral with the wall of the container and recessed with respect to the exterior surface of the container, the handgrip including a central dome having a convex surface extending toward the exterior surface of the container;at least an innermost concentric connecting ring and an outermost concentric connecting ring, with each connecting ring having an annular concave surface facing the interior of the container;at least an innermost annular trough and an outermost annular trough, each annular trough having an annular concave surface facing an adjacent portion of the exterior surface of the container;a first inner frustum interconnecting the dome to the innermost trough;a first outer frustum connecting the innermost trough to the innermost connecting ring;another outer frustum connecting the outermost annular trough with the outer most connecting ring;the outermost connecting ring joining integrally with the container wall surrounding the handgrip;the handgrip in the container wall having a thickness approximately equal to the container wall thickness surrounding the handgrip; andthe central dome has an inner surface concave to said interior of the container and has a radius of about 0.19 of an inch to about 0.32 of an inch. 17. A plastics container for liquids under pressure having at least one handgrip formed in a wall of the plastics container, the handgrip having the wall defining an interior of the container, an interior surface, an exterior surface and a wall thickness, the handgrip comprising an integral structure formed of a central dome having a convex surface facing an adjacent portion of the exterior surface, at least two concentric connecting rings each having an annular concave surface facing the interior of the container, at least innermost and outermost annular troughs, disposed between the concentric connecting rings, each annular trough having an annular concave surface facing an adjacent portion of the exterior surface; an inner frustum interconnecting the dome to the innermost trough and an outer frustum interconnecting the innermost trough to the innermost connecting ring,another outer frustum connecting the outermost annular trough with the outer most connecting ring,the outermost connecting ring joining integrally with the container wall surrounding the handgrip, andthe handgrip in the container wall having a thickness approximately equal to the container wall thickness surrounding the handgrip. 18. The container of claim 17 wherein the central dome is connected to the innermost trough and each connecting ring is connected to the next outward trough by way of an inner frustum. 19. A blow mold for blow molding a plastics container having at least one handgrip formed in a container wall, the container wall defining an interior of the plastics container and having; an interior surface, an exterior surface and a wall thickness, the blow mold comprising:a body having a mold wall for forming an interior cavity shaped to the exterior shape of the container and having an opening for receiving a plastic pre-mold to be molded into the container, andat least one inwardly extending portion of the mold wall shaped as a negative impression of a handgrip to be formed in the container wall, the handgrip extending inwardly from the container wall, and whereina positive impression of the handgrip includesa central dome having a convex surface extending toward the exterior surface of the container,at least two concentric connecting rings, each connecting ring having an annular concave surface facing the interior of the container,at least one innermost annular trough and one outermost annular trough disposed between the concentric connecting rings, each trough having an annular concave surface faci ng an adjacent portion of the exterior surface of the container,a first inner frustum interconnecting the dome to the innermost trough,a first outer frustum connecting the innermost trough to the innermost connecting ring,another outer frustum connecting the outermost annular trough with the outer most connecting ring,the outermost connecting ring joining integrally with the container wall surrounding the handgrip, andthe handgrip in the container wall having a thickness approximately equal to the container wall thickness surrounding the handgrip. 20. The blow mold of claim 19 wherein in the positive impression of the handgrip the central dome is connected to the innermost trough and each connecting ring is connected to an adjacent outward trough by way of an inner frustum. 21. The blow mold of claim 20 wherein the inwardly extending portion of the blow mold comprising annular projections, each having an outer extremity and adjacent side surfaces complimentary to the outer and inner frustums. 22. The blow mold of claim 19 wherein the inwardly extending portion of the blow mold further comprising annular projections, each having an outer extremity and an adjacent side surface complimentary to the trough and outer frustum. 23. The blow mold for blow molding a plastic container of claim 19, wherein:the negative impression of a handgrip includes an inwardly extending annular projection corresponding to each trough, each annular projection including an inwardly extending body having a body having side surfaces forming an inner and an outer frustum associated with the corresponding trough and terminating in a cross section radius forming an internal radius of the corresponding trough. 24. The blow mold for blow molding a plastic container of claim 23, wherein:a cross section diameter of the annular projection decreases toward the terminating cross section radius so that the body and the terminating cross section radius of the annular projection are slanted toward a centerline of the handgrip by an included angle of approximately 10 degrees.
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