초록 ▼

A thermoplastic container assembly includes an improved means of attachment between lid, base and container which meets paint industry drop test standards and includes tamper evidence, a transparent lid and improved means to prevent leakage between the base, lid and container. The container includes

A thermoplastic container assembly includes an improved means of attachment between lid, base and container which meets paint industry drop test standards and includes tamper evidence, a transparent lid and improved means to prevent leakage between the base, lid and container. The container includes an upper extending tubular wall element extending from the perimeter of a bottom wall to an upper rim, the upper rim including an annular inward facing cavity formed by a reduced thickness area, which includes an annular inward facing upper bead positioned above the inward facing cavity. A base includes an annular portion having an outwardly directed resilient exterior annular wall which engages the inward facing cavity of the rim of the tubular element in snap fit engagement. A lid includes a plurality of spaced apart resilient flange/protrusion elements extending outwardly from a bottom portion of an annular portion of the lid; the flanges/protrusion elements being snap-fit engageable within an upward facing annular groove of the base.

대표청구항 ▼

1. A container and lid assembly comprising: a container including an upper extending tubular wall element extending from a perimeter of a bottom wall to an upper rim at an upper portion thereof defining an interior containing space, the upper rim including a reduced thickness area forming an annular

1. A container and lid assembly comprising: a container including an upper extending tubular wall element extending from a perimeter of a bottom wall to an upper rim at an upper portion thereof defining an interior containing space, the upper rim including a reduced thickness area forming an annular inward facing cavity, the upper portion of the tubular wall element including an annular inward facing upper bead positioned above the annular inward facing cavity;a base including an annular portion having an outwardly directed resilient exterior annular wall which is positionable within the annular inward facing cavity of the upper rim of the tubular wall element in snap fit engagement, securing the base to the upper extending tubular wall element, the annular portion of the base including an upward facing annular groove extending around an entirety thereof, the upward facing annular groove bounded by the outwardly directed exterior annular wall and an interior upright wall; anda lid including a plurality of spaced apart resilient flange elements extending outwardly from a bottom portion of an annular portion of the lid, the flange elements snap fit engageable within the upward facing annular groove of the base, the flange elements in contact with the outwardly directed resilient exterior wall and the interior upright wall of the base. 2. The assembly of claim 1 wherein the upward facing annular groove of the base is defined by an interior upright wall, a bottom wall and an obtusely angled exterior wall, the exterior wall including an inward bead extending around the upper end thereof and each flange element of the lid has a bottom portion which extends outwardly from a circumferential edge of the lid and an upwardly extending resilient slightly obtusely angled outer wall, and as the lid is pressed upon the annular portion of the base, the upwardly extending resilient outer wall of each flange element is deformed inwardly as it enters the top of the annular groove by the inward bead, and then once within the groove, returns back to its obtusely angular position thereby securing the lid in position within the groove. 3. The assembly of claim 2 wherein the inward bead extends continuously around an entirety of the upper end of the exterior wall. 4. The assembly of claim 2 wherein the inward bead extends inwardly from portions of the upper end of the exterior wall. 5. The assembly of claim 1 wherein the lid comprises a prying flange extending outwardly from an outer annular portion of the lid in at least one of the spaces between the flange elements. 6. The assembly of claim 1 wherein the upper portion of the tubular wall element of the container includes an inward facing ledge upon which a bottom portion of the exterior annular wall of the base locates when the exterior annular wall of the base is snap fit into engagement within the annular inward facing cavity in the tubular wall element of the container. 7. The assembly of claim 6 wherein the ledge comprises an upwardly angled molded flexible wiper protuberance extending inwardly therefrom wherein the flexible wiper protuberance on the ledge engages with a portion of the exterior annular wall of the base, when in said snap fit engagement, said wiper protuberance creating a seal to act as barrier to prevent the contents of the interior containing space of the container from leaking between the rim of the container and base panel. 8. The assembly of claim 7 further comprising a second flexible wiper protuberance positioned on or adjacent said ledge, which when in said snap fit engagement flexes against the exterior wall of the base, providing a further barrier to prevent contents of the interior containing space from leaking. 9. The assembly of claim 1 wherein the lid, container and base comprise thermoplastic material. 10. The assembly of claim 1 wherein the base includes a continuous interior horizontal panel covering the entirety of the container when the base is secured upon the container. 11. The assembly of claim 10 wherein the interior horizontal panel includes a circumferential tear strip defined by lines of reduced thickness and extends around the perimeter of the interior horizontal panel, inward and adjacent to the annular portion. 12. The assembly of claim 1 wherein the lid is transparent. 13. The assembly of claim 1 wherein the base includes a central opening. 14. The assembly of claim 5 wherein the lid includes a plurality of flange elements and a plurality of prying flanges with the spacing of the flange elements being such that the distance between consecutive flanges is approximately the same as the length of each flange. 15. The assembly of claim 1 wherein the upper extending tubular wall element of the container presents a plurality of teeth disposed inwardly and downwardly on the annular inward facing upper bead of the upper rim of the tubular wall element of the container positioned above the inward facing cavity in the upper rim of the tubular wall element; the base including a plurality of teeth on the upper circumference of the outwardly directed resilient exterior annular wall thereof, wherein when annular wall of the base is positioned within the inward facing cavity in the upper rim of the tubular wall element, the teeth on the rim engage and overlap with the teeth on the exterior annular wall of the base, further strengthening the attachment between container and base. 16. The assembly of claim 1 wherein the upper extending tubular wall element of the container presents a ridge disposed inwardly and downwardly on the annular inward facing upper bead of the upper rim of the tubular wall element of the container positioned above the inward facing cavity in the upper rim of the tubular wall element; the base including a ridge on the upper circumference of the outwardly directed resilient exterior annular wall thereof, wherein when annular wall of the base is positioned within the inward facing cavity in the upper rim of the tubular wall element, the ridge on the rim engages and overlaps with the ridge on the exterior annular wall of the base, further strengthening the attachment between container and base. 17. The assembly of claim 1 wherein the upper extending tubular wall element of the container presents a plurality of teeth or a continuous ridge disposed inwardly and downwardly on the annular inward facing upper bead of the upper rim of the tubular wall element of the container positioned above the inward facing cavity in the upper rim of the tubular wall element; the base including a plurality of teeth or a continuous ridge on the upper circumference of the outwardly directed resilient exterior annular wall thereof, wherein when annular wall of the base is positioned within the inward facing cavity in the upper rim of the tubular wall element, the teeth or ridge on the rim engage engages and overlap overlaps with the teeth or ridge on the exterior annular wall of the base, further strengthening the attachment between container and base. 18. The assembly of claim 1 wherein as the outwardly directed resilient exterior annular wall of the base enters the annular inward facing cavity in the upper rim of the tubular wall element, the inward facing upper bead deforms the exterior annular wall inwardly and as the exterior annular wall of the base enters the annular inward facing cavity in snap fit engagement, the exterior annular wall returns to its normal position. 19. A container and lid assembly comprising: a container including an upper extending tubular wall element extending from a perimeter of a bottom wall to an upper rim at an upper portion thereof defining an interior containing space, the upper rim including a reduced thickness area forming an annular inward facing cavity, the upper portion of the tubular wall element including an annular inward facing upper bead positioned above the annular inward facing cavity;a base including an annular portion having an outwardly directed resilient exterior annular wall which is positionable within the annular inward facing cavity of the upper rim of the tubular wall element in a first snap fit engagement, securing the base to the upper extending tubular wall element, the annular portion of the base including an upward facing annular groove extending around an entirety thereof, the upward facing annular groove bounded by the outwardly directed resilient exterior annular wall and an interior upright wall; anda lid including a plurality of spaced apart resilient flange elements extending outwardly from a bottom portion of an annular portion of the lid, the flange elements configured to form a second snap fit engagement within the upward facing annular groove of the base, the flange elements in contact with the outwardly directed resilient exterior annular wall and the interior upright wall of the base.