An overcap is provided for use in sealing a container of the type having an outer rim, an inside wall surface, and an inner rim spaced inwardly from the inside wall surface, with the inner rim forming a container opening. A flexing portion is formed within the body portion of the overcap and is move
An overcap is provided for use in sealing a container of the type having an outer rim, an inside wall surface, and an inner rim spaced inwardly from the inside wall surface, with the inner rim forming a container opening. A flexing portion is formed within the body portion of the overcap and is moveable between a first sealing position and a second sealing position. The flexing portion includes a downwardly depending wall member positioned adjacent the inside wall surface of the container in the first sealing position. A sealing plug is provided and is moveable between the first sealing position and the second sealing position. The sealing plug includes a peripheral surface dimension for frictional engagement with the inner rim, releasably closing of the opening in the second sealing position. The sealing plug is separated from the inner rim in the first sealing position.
대표청구항▼
1. An overcap suitable for use in sealing a container having an outer rim, an inside wall surface, and an inner rim spaced inwardly from the inside wall surface, the inner rim forming a container opening, the overcap comprising: a body portion for releasably fitting over the outer rim of the contain
1. An overcap suitable for use in sealing a container having an outer rim, an inside wall surface, and an inner rim spaced inwardly from the inside wall surface, the inner rim forming a container opening, the overcap comprising: a body portion for releasably fitting over the outer rim of the container and for covering the opening into the container;a peripheral skirt extending from the body portion and dimensioned to surround the outer rim of the container; anda flexing portion formed within the body portion, the flexing portion having a first sealing position and a second sealing position with respect to the container, the flexing portion comprising a downwardly depending wall member, the wall member positioned adjacent the inside wall surface of the container in the first sealing position,a sealing surface outwardly formed on the wall member, the wall member and sealing surface dimensioned for engagement of the sealing surface with the inside wall surface in the first sealing position, anda sealing plug moveable from the first sealing position to the second sealing position, the sealing plug having a peripheral surface dimension for sealing engagement of the inner rim with a friction engagement for releasable closing of the opening in the second sealing position, the sealing plug separated from the inner rim in the first sealing position,wherein the sealing surface engages the inside wall surface in the first sealing position and wherein movement of the sealing plug to the second sealing position of the flexing portion causes resilient inward movement of the wall member, separating the sealing surface from the inside wall surface. 2. An overcap as in claim 1, wherein the flexing portion comprises a series of interconnected walls joined by flex joints. 3. An overcap as in claim 1, wherein the sealing plug is formed by a central planar member, an outwardly angled wall formed on the periphery of the central member, and an upwardly directed connecting ring, wherein the connecting ring forms the frictional engagement surface with the inner rim in the second sealing position. 4. An overcap as in claim 1, wherein the wall member and the sealing plug are connected by an angled connecting wall. 5. An overcap as in claim 1, wherein the sealing surface comprises sealing means projected from the wall member. 6. An overcap as in claim 5, wherein the sealing means comprises a continuous engagement bead formed on an outside surface of the wall member. 7. An overcap as in claim 5, wherein the sealing means comprises a plurality of flexible rings formed on an outside surface of the wall member. 8. An overcap as in claim 5, wherein the sealing means comprises a knurled portion forming a continuous band on an outside surface of the wall member. 9. An overcap as in claim 1, further comprising plug sealing means formed on the sealing plug, the plug sealing means positioned for engagement with the inner rim upon movement of the sealing plug into the second sealing position. 10. An overcap as in claim 9, wherein the plug sealing means comprises a continuous engagement bead formed on an outside surface of the wall member. 11. An overcap as in claim 9, wherein the plug sealing means comprises a plurality of flexible rings formed on an outside surface of the sealing plug. 12. An overcap as in claim 9, wherein the plug sealing means comprises a knurled band on an outside surface of the sealing plug. 13. An overcap as in claim 1, further comprising a plurality of vents formed adjacent an engagement bead on a peripheral surface of the sealing plug, the vents being active during engagement of the sealing plug with the inner rim, prior to the frictional engagement with the inner rim during movement of the sealing plug to the second sealing position. 14. An overcap as in claim 1, further comprising an engagement ridge positioned on an inside surface of the peripheral skirt for engaging the outer rim of the container and for resiliently retaining the overcap on the container. 15. An overcap as in claim 1, wherein the body portion, the peripheral skirt, and the flexing portion are integrally formed from an injection molded plastic. 16. An overcap for use in sealing a container having a top end portion forming an outer rim and an inwardly defined rim, inwardly defined rim forming an opening into the interior of the container, the overcap comprising: a body portion for releasably fitting over the outer rim of the container and for covering the opening into the container;a peripheral flange extending from the body portion and dimensioned to surround the outer rim of the top end of the container;a sealing plug having a peripheral dimension approximately equal to the dimension of the opening formed by the inwardly defined rim;an engagement bead on the sealing plug dimensioned for engagement of the inwardly defined rim with a friction fit in a plug sealing position; anda resilient sealing surface formed on the outside surface of the sealing plug adjacent to the engagement bead, the sealing surface selected from the group comprising a plurality of flexible ribs and a flexible knurled band,wherein resilient movement of the sealing plug to the plug sealing position causes the friction fit engagement of the bead with the inwardly defined rim and a resilient sealing engagement of the sealing surface with the inwardly defined rim. 17. An overcap as in claim 16, further comprising: a flexing portion formed within the body portion, the flexing portion allowing for resilient movement of the sealing plug between a first position and the plug sealing position. 18. An overcap as in claim 17, further comprising: a wall member within the flexible portion positioned adjacent an inside surface of the outer rim of the top end of the container. 19. An overcap for use in sealing a container having a top end portion forming an outer rim and an inwardly defined rim, the inwardly defined rim forming an opening into the interior of the container, the overcap, comprising: a body portion for releasably fitting over the outer rim of the container and for covering, the opening into the container;a peripheral flange extending outwardly from the body portion and dimensioned to surround the outer rim of the top end, of the container;a sealing plug, having a peripheral dimension approximately equal to the dimension of the opening, formed by the inwardly defined rim;an engagement bead on the sealing plug dimensioned for engagement of the inwardly defined rim with a friction fit in plug sealing position; anda sealing surface formed on the outside surface of the, sealing plug, the sealing surface selected from the group comprising a plurality of flexible ribs and a knurled band,a flexing portion formed within the body portion, the flexing portion allowing for resilient movement of the sealing plug between a first position and the plug sealing position;a wall member within the flexible portion positioned adjacent an inside surface of the outer rim of the top end of the container; andsealing means formed on the wall member, the sealing means extending outwardly from the wall member and dimensioned for engagement with the inside surface of the outer rim in a first sealing position of the overcap,wherein resilient movement of the sealing plug to the plug sealing position causes sealing engagement of the sealing surface with the inwardly defined rim,wherein the sealing plug is spaced from the inner rim in the first sealing position of the sealing means, andwherein the sealing means is spaced from the outer rim in the first sealing position of the overcap as a result of the flexing portion and the movement of the sealing plug to the plug sealing position. 20. An overcap as in claim 19, wherein the sealing means comprises a continuous engagement bead formed on the outside surface of the wall member. 21. An overcap as in claim 19, wherein the sealing means comprises a plurality of flexible rings formed on the outside surface of the wall member. 22. An overcap as in claim 21, wherein the flexible rings are closely spaced and positioned parallel to one another. 23. An overcap as in claim 19, wherein the sealing means comprises a knurled band formed on the outside surface of the wall member. 24. An overcap as in claim 23, wherein the knurled band comprises a plurality of spaced flexible projections. 25. In a container comprising a container body defined by a side wall, a top end portion and a bottom end portion opposite the top end portion, a top end closure is attached to the top end portion for closing and sealing the container with product therein, the top end closure including an end ring having a peripheral outer rim secured to said container body top end portion and an inner rim defining an access opening into the interior of the container, a resealing overcap comprising: a body portion constructed for releasably engaging the peripheral outer rim of the end ring closure and closing the opening into the container;a downwardly depending portion within the body portion resiliently moveable from a first position to a second sealing position; the depending portion having an engagement bead thereon, the engagement bead having a peripheral dimension approximately equal to the dimension of the inner rim for engagement of the inner rim with a friction fit in the second sealing position, the depending portion having an outer surface spaced from the engagement bead, the outer surface engaging the inner rim in the second sealing position; anda resilient sealing structure formed on the outer surface of the depending portion, the resilient sealing structure selected from the group comprising a continuous ring, a plurality of ribs and a knurled band,wherein resilient movement of the depending portion to the second sealing position causes the engagement bead to frictionally lock the depending portion with the inner rim and the resilient sealing structure to resiliently seal the depending portion with the inner rim. 26. An overcap as in claim 25, wherein the depending portion comprises a sealing plug. 27. An overcap as in claim 25, further comprising: a plurality of vents formed adjacent the engagement bead on the opposing side of the engagement bead from the sealing structure, the vents being active during engagement of the sealing plug with the inner rim during movement of the depending, portion towards the second sealing position, prior to the frictional engagement of the engagement bead with the inner rim and prior to the sealing structure sealing the depending portion with the inner rim. 28. In a container comprising a container body defined by a side wall, a top end portion and a bottom, end portion opposite the top end portion, a top end closure is attached to the top end portion for closing and sealing the container with product therein, the top end closure including an end ring having a peripheral outer rim secured to said container body top end portion and an inner rim defining an access opening into the interior of the container, a resealing overcap comprising: a body portion constructed for releasably engaging the peripheral outer rim of the end ring closure and closing the opening into the container;a downwardly depending portion within the body portion resiliently moveable from a first position to a second sealing position; the depending portion having a peripheral dimension approximately equal to the dimension of the inner rim for engagement of the inner rim with a friction fit in the second sealing position, the depending portion having an outer surface for engagement with the inner rim; anda sealing structure formed on the outer surface of the depending portion, the sealing structure selected from the group comprising a continuous ring, a plurality of flexible ribs and a knurled band, wherein resilient movement of the depending portion to the second sealing position causes sealing engagement of the sealing structure with the inner rim; anda flexing portion within the body portion, the flexing portion providing for resilient movement of the depending portion during engagement with the inner rim, at least one portion formed as part of the flexing portion positioned adjacent a surface of the outer rim of the container, and sealing means formed on the at least one portion, the sealing means dimensioned for sealing engagement with the outer rim in a first sealing position, wherein the sealing means engages the inside surface of the outer rim in the first sealing position and movement of the depending portion to the second sealing position causing the flexing portion to create an inward movement of the sealing means away from the outer rim. 29. An overcap as in claim 28, wherein the sealing means comprises a plurality of flexible rings formed on the at least one portion of the flexing portion. 30. An overcap as in claim 28, wherein the sealing means comprises a knurled portion forming a continuous band on the at least one portion of the flexing portion.
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이 특허에 인용된 특허 (19)
Shingle, John M., Child-resistant package, closure and container.
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