15A sealing closure for use with a container includes a top wall, an annular skirt, and a resiliently flexible annular flange. The annular skirt extends downwardly from the top wall. The annular flange extends downwardly from the top wall and radially outwardly toward the annular skirt. One or more
15A sealing closure for use with a container includes a top wall, an annular skirt, and a resiliently flexible annular flange. The annular skirt extends downwardly from the top wall. The annular flange extends downwardly from the top wall and radially outwardly toward the annular skirt. One or more stop ribs can be provided extending downwardly from the top wall and radially inwardly from the annular skirt to limit upward deflection of the annular flange.
대표청구항▼
The invention claimed is: 1. A sealing closure for use with a container having a rim defining an opening, comprising: a top wall having a lower surface and an upper surface; an annular skirt extending downwardly from the top wall, including a container engaging means on an inner surface thereof ada
The invention claimed is: 1. A sealing closure for use with a container having a rim defining an opening, comprising: a top wall having a lower surface and an upper surface; an annular skirt extending downwardly from the top wall, including a container engaging means on an inner surface thereof adapted to releasably draw the sealing closure into engagement with the container; an annular flange extending downwardly from the lower surface of the top wall and radially outwardly toward the annular skirt, wherein the annular flange is resiliently flexible and upwardly deflectable and is adapted to engage an upper surface of the rim so as to provide an annular surface seal for the opening of the container; and at least one stop rib extending downwardly from the lower surface and extending radially inwardly from the annular skirt, the stop rib being adapted to contact the rim to limit a distance of upward deflection of the annular flange, the annular flange positioned so that it is located outside of the opening of the container, whereby the sealing closure can be installed on a container having a sealing membrane without damaging the sealing membrane. 2. The sealing closure of claim 1, wherein the at least one stop rib comprises a plurality of equally spaced stop ribs. 3. The sealing closure of claim 1, wherein the distance of upward deflection is no greater than 0.03 inch. 4. The sealing closure of claim 1, wherein the annular flange is the only element sealing the rim to the sealing closure. 5. The sealing closure of claim 1, further having a piercing member extending upwardly from the upper surface of the top wall of the sealing closure. 6. The sealing closure of claim 1, wherein the annular flange is a single uninterrupted annular flange. 7. A sealing closure for use with a container having a rim defining an opening, comprising: a top wall having a lower surface and an upper surface; an annular skirt extending downwardly from the top wall, including a container engaging means on an inner surface thereof adapted to releasably draw the sealing closure into engagement with the container; an annular flange extending downwardly from the lower surface of the top wall and radially outwardly toward the annular skirt, including sloped inner and outer surfaces extending radially outwardly from the lower surface of the top wall toward the annular skirt, wherein the annular flange is resiliently flexible and upwardly deflectable and is adapted to engage an upper surface of the rim so as to provide an annular surface seal for the opening of the container; and at least one stop rib extending downwardly from the lower surface and extending radially inwardly from the annular skirt, the stop rib being adapted to contact the rim to limit a distance of upward deflection of the annular flange, the annular flange positioned so that it is located outside of the opening of the container, whereby the sealing closure can be installed on a container having a sealing membrane without damaging the sealing membrane. 8. The sealing closure of claim 7, wherein the annular flange is connected to the lower surface by a base and the sloped outer surface defines a bend in the base. 9. The sealing closure of claim 7, wherein the annular flange is the only element sealing the rim to the sealing closure. 10. The sealing closure of claim 7, wherein the at least one stop rib comprises a plurality of equally spaced stop ribs. 11. The sealing closure of claim 7, wherein the distance of upward deflection is no greater than 0.03 inch. 12. The sealing closure of claim 7, further having a piercing member extending upwardly from the upper surface of the top wall of the sealing closure. 13. In combination, a container having a rim defining an opening, and a sealing closure comprising: a top wall having a lower surface and an upper surface; an annular skirt extending downwardly from the top wall, including a container engaging means on an inner surface thereof adapted to releasably draw the sealing closure into engagement with the container; and an annular flange extending downwardly from the lower surface of the top wall and radially outwardly toward the annular skirt, wherein the annular flange is resiliently flexible and upwardly deflectable and is adapted to engage an upper surface of the rim so as to provide an annular surface seal, and at least one stop rib extending downwardly from the lower surface and extending radially inwardly from the annular skirt, the stop rib is being adapted to engage the rim to limit a distance of upward deflection of the annular flange, the annular flange positioned so that it is located outside of the opening of the container, whereby the sealing closure can be installed on a container having a sealing membrane without damaging the sealing membrane. 14. The combination of claim 13, wherein the annular flange has sloped inner and outer surfaces that taper toward a tip. 15. The combination of claim 13, wherein the annular flange is connected to the lower surface by a base and the sloped outer surface defines a bend in the base. 16. The combination of claim 13, wherein the annular flange is the only element sealing the rim to the sealing closure. 17. The combination of claim 13, wherein the annular flange is arranged to overlap the upper surface of the rim. 18. The combination of claim 13, wherein the annular flange is a single uninterrupted structure. 19. The combination of claim 13, wherein the at least one stop rib comprises a plurality of equally spaced stop ribs. 20. The combination of claim 13, wherein the at least one stop rib and the annular flange are vertically spaced apart such that the annular flange can deflect upwardly up to 0.03 inch. 21. The combination of claim 13, wherein the sealing closure further has a piercing member extending upwardly from the upper surface of the top wall of the sealing closure.
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