Claims
- 1. A composite closure for a container, such as a bottle, having a neck and a finish about the mouth of said container, comprising:
- a plastic cap formed of spirally orientated molecules for enhanced strength, said plastic cap having a top wall portion with an underside, an internally threaded annular skirt depending from said top wall portion and a heat-shrinkable pilfer band detachably connected to said skirt, said top wall portion having a plurality of liner-engaging pedestals extending from its underside in generally normal relation thereto in an area bounded by said skirt, each of said pedestals having a free end spaced from said top wall portion, said free ends being spaced from each other to define liner-receiving spaces therebetween, said pilfer band having an internal diameter at least as large as the internal diameter of said skirt for insertion onto said container; and
- a plastic liner disposed in said cap and connected to and retained within said cap by said pedestals, said plastic liner having a resilient annular sealing bead adjacent said skirt for resiliently sealing against the finish of said container and a centrally disposed disc-shaped portion extending substantially across and connected to said annular sealing bead, said centrally disposed disc-shaped portion extending from a position adjacent said top wall portion to a position spaced from the free ends of said pedestals in a direction generally away from said top wall portion, said disc-shaped portion providing a generally planar surface for substantially covering the mouth of said container;
- wherein said cap has an internal annular lip extending inwardly of said skirt providing a retainer for engaging and retaining said plastic liner and for providing a seal during the liner-forming process.
- 2. A composite closure in accordance with claim 1, wherein said pedestals are spaced from each other in a grid-like array of longitudinal and lateral rows of substantially parallel pedestals.
- 3. A composite closure in accordance with claim 2 wherein each of said pedestals has a generally upright body extending in a generally upright direction and has portions extending outwardly of said body adjacent said free end in a direction generally transverse to said upright direction for providing a head having an overhang to interlockingly engage said plastic liner.
- 4. A composite closure in accordance with claim 3 wherein said body has a generally square cross-section and said head is mushroom-shaped.
- 5. A composite closure in accordance with claim 2 wherein each of said pedestals is cylindrical and has a circular edge about its free end for providing a fusible heat concentration zone that is thermally fused to said liner.
- 6. A composite closure in accordance with claim 2 wherein each of said pedestals is pyramid-shaped with a base and an apex, said apex providing a fusible heat concentration zone that is thermally fused to said liner.
- 7. A composite closure in accordance with claim 6 wherein said bases of said pyramid-shaped pedestals in each lateral row are generally contiguous to each other.
- 8. A composite closure for a container, such as a bottle, comprising:
- a plastic cap having a top wall portion with a plurality of liner-engaging pedestals extending therefrom, said liner-engaging pedestals having portions spaced from each other to define liner-receiving spaces therebetween, each of said pedestals having a free end spaced from said top wall portion, and said plastic cap having an annular skirt depending from said top wall portion and bounding said liner-engaging pedestals and said liner-receiving spaces, and a liner-retaining lip spaced from said top wall portion; and
- a substantially fluid-impervious plastic liner disposed in said liner-receiving spaces and connected to said pedestals for engaging and fluidly sealing said container, said plastic liner having an annular sealing portion adjacent said skirt engaged by said liner-retaining lip, and a centrally disposed portion connected to said annular sealing portion, said centrally disposed portion extending from a position adjacent said top wall portion to a position spaced from the free ends of said pedestals in a direction generally away from said top wall portion for overlying said pedestals;
- wherein said pedestals include fusible pedestals having a heat concentration zone that is thermally fused to said plastic liner.
- 9. A composite closure in accordance with claim 8 wherein each of said fusible pedestals has a cylindrical configuration with a circular edge that defines at least part of said heat concentration zone.
- 10. A composite closure in accordance with claim 8 wherein each of said fusible pedestals has an apex that defines at least part of said heat concentration zone.
- 11. A composite closure in accordance with claim 10 wherein each of said fusible pedestals are pyramid-shaped.
- 12. A composite closure in accordance with claim 8, and
- an integral heat deformable pilfer band detachably connected to said skirt.
- 13. A composite closure in accordance with claim 12, wherein said heat deformable pilfer band comprises a heat shrinkable pilfer band.
- 14. A composite closure for a container, such as a bottle, comprising:
- a plastic cap having a top wall portion with a plurality of liner-engaging pedestals extending therefrom in generally normal relation to said top wall portion, said liner-engaging pedestals having portions spaced from each other to define liner-receiving spaces therebetween, each of said pedestals having a free end spaced from said top wall portion, and said plastic cap having an annular skirt depending from said top wall portion and bounding said liner-engaging pedestals and said liner-receiving spaces, and an annular liner-retaining lip; and
- a substantially fluid-impervious plastic liner disposed in said liner-receiving spaces and connected to said pedestals for engaging and fluidly sealing said container, said plastic liner having an annular sealing portion adjacent said skirt and said liner-retaining lip and a centrally disposed portion connected to said annular sealing portion, said centrally disposed portion extending from a position adjacent said top wall portion to a position spaced from the free ends of said pedestals in a direction generally away from said top wall portion for overlying said pedestals;
- wherein at least some of said pedestals have an overhang for interlockingly engaging said liner.
- 15. A composite closure in accordance with claim 14 wherein said overhang is mushroom-shaped.
- 16. A composite closure in accordance with claim 14, wherein
- said plastic cap includes means for reinforcing said liner-retaining lip.
- 17. A composite closure for a container comprising:
- a plastic cap having a top wall portion and an annular skirt, said top wall portion including a plurality of liner-engaging pedestals extending therefrom, said pedestals having portions spaced from each other to define liner-receiving spaces therebetween, said plastic cap having an annular liner-retaining lip in spaced relation to said pedestals, and
- a substantially fluid-impervious plastic liner disposed in said liner-receiving spaces and including an annular bead portion adjacent to said liner-retaining lip, said liner being connected to said pedestals for engaging and fluidly sealing said container.
- 18. A composite closure in accordance with claim 17, wherein
- at least some of said pedestals include overhanging portions for interlocking said liner with said cap.
- 19. A composite closure in accordance with claim 17, wherein
- said liner is thermally fused to at least some of said pedestals.
- 20. A composite closure in accordance with claim 17, wherein
- said liner-engaging pedestals are disposed in a grid-like array for enhancing retention of said liner within said cap.
- 21. A composite closure in accordance with claim 17, wherein
- said plastic cap includes a plurality of circumferentially spaced gussets extending between said liner-retaining lip and said annular skirt for reinforcing said lip.
- 22. A composite closure in accordance with claim 17, and a heat deformable pilfer band detachably connected to said skirt.
- 23. A composite closure for a container comprising:
- a plastic cap including a top wall portion, an annular skirt portion, and an inwardly extending annular liner-retaining lip spaced from said top wall portion and defining a recess therewith, and
- a substantially fluid-impervious plastic liner formed in said cap disposed adjacent said top wall portion including a centrally disposed portion, and an annular bead portion adapted to sealingly engage said container, said annular bead portion engaging and retained by said annular lip, at least a portion of said annular bead portion being disposed within and substantially filling said recess.
- 24. A composite closure for a container comprising:
- a plastic cap including a top wall portion, an annular skirt portion, and an inwardly extending annular liner-retaining lip spaced from said top wall portion and defining a recess therewith, and
- a substantially fluid-impervious plastic liner disposed adjacent said top wall portion including a centrally disposed portion, and an annular bead portion adapted to sealingly engage said container, said annular bead portion engaging and retained by said annular lip, at least a portion of said annular bead portion being disposed within said recess; and
- liner-retention means for connecting said plastic liner with said top wall portion.
- 25. A composite closure in accordance with claim 24, wherein
- said liner-retention means comprise fused portions of said centrally disposed portion of said liner and said top wall portion of said cap.
- 26. A composite closure in accordance with claim 24, wherein
- said liner-retention means comprise a plurality of liner-engaging pedestals integral with said top wall portion.
- 27. A composite closure in accordance with claim 26, wherein
- said plastic liner is thermally fused to portions of said pedestals.
- 28. A composite closure in accordance with claim 26, wherein
- said plastic liner is mechanically connected to said pedestals.
- 29. A composite closure in accordance with claim 24, wherein
- said plastic cap includes means for reinforcing said liner-retaining lip comprising a plurality of circumferentially spaced gussets extending between said liner-retaining lip and said annular skirt portion,
- said annular sealing portion is substantially thicker than said centrally disposed portion, and includes a generally frusto-conical sealing surface adapted to sealingly engage said container.
- 30. A composite closure in accordance with claim 24, said plastic cap including a plurality of circumferentially spaced gussets extending between said liner-retaining lip and said annular skirt portion.
- 31. A composite closure for a container comprising:
- a plastic cap including a top wall portion, an annular skirt portion, a heat deformable pilfer-band detachably connected to said skirt portion, and an inwardly extending liner retaining lip defining an annular recess with said top wall portion, and
- a substantially fluid-impervious plastic liner disposed adjacent said top wall portion including a centrally disposed portion, and an annular bead portion engaging and retained by said annular lip and substantially filling said annular recess,
- said closure including liner-retainer means integral with said top wall portion for retaining said liner within said plastic cap.
- 32. A composite closure in accordance with claim 31, wherein said liner-retention means comprises fusible portions of said top wall portion fused to said plastic liner.
- 33. A composite closure in accordance with claim 32, wherein said top wall portion includes a plurality of integral pedestals, at least some of said pedestals defining heat concentration zones which include said fusible portions.
- 34. A composite closure in accordance with claim 31, wherein said top wall portion include a plurality of integral pedestals interlockingly engaging said plastic liner.
- 35. A composite closure for a container, such as a bottle, having a neck and a finish about the mouth of said container, comprising:
- a plastic cap having a top wall portion with an underside, an internally threaded annular skirt depending from said top wall portion and a heat-shrinkable pilfer band detachably connected to said skirt, said top wall portion having a plurality of liner-engaging pedestals extending from its underside in an area bounded by said skirt, each of said pedestals having a free end spaced from said top wall portion, said free ends being spaced from each other to define liner-receiving spaces therebetween; and
- a plastic liner disposed in said liner-receiving spaces and connected to said pedestals, said plastic liner having a resilient annular sealing bead adjacent said skirt for resiliently sealing against the finish of said container and a centrally disposed disc-shaped portion extending substantially across and connected to said annular sealing bead, said centrally disposed disc-shaped portion extending from a position adjacent said top wall portion to a position spaced from the free ends of said pedestals in a direction generally away from said top wall portion, said disc-shaped portion providing a generally planar surface overlying said pedestals for substantially covering the mouth of said container;
- said cap including an internal annular lip extending integrally inwardly from said skirt spaced from said top wall and providing a retainer for retaining said annular sealing bead during the liner-forming process.
- 36. A composite closure in accordance with claim 35 wherein said pedestals are spaced from each other in a grid-like array of longitudinal and lateral rows of pedestals.
- 37. A composite closure in accordance with claim 35 wherein each of said pedestals has a generally mushroom-shaped head.
- 38. A composite closure in accordance with claim 35 wherein each of said pedestals is thermally fused to said liner.
- 39. A composite closure for a container, such as a bottle, comprising:
- a plastic cap having a top wall portion with a plurality of liner-engaging pedestals extending therefrom, said liner-engaging pedestals having portions spaced from each other to define liner-receiving spaces therebetween, each of said pedestals having a free end spaced from said top wall portion, and said plastic cap having an annular skirt depending from said top wall portion and bounding said liner-engaging pedestals and said liner-receiving spaces, and an annular liner-retaining lip; and
- a substantially fluid-impervious plastic liner disposed in said liner-receiving spaces and connected to said pedestals for engaging and fluidly sealing said container, said plastic liner having an annular sealing portion adjacent said skirt and said liner-retaining lip and a centrally disposed portion connected to said annular sealing portion, said centrally disposed portion extending from a position adjacent said top wall portion to a position spaced from the free ends of said pedestals in a direction generally away from said top wall portion for overlying said pedestals;
- wherein each of said pedestals has a generally upright body extending in a generally upright direction and has at least one portion extending outwardly of said body adjacent said free end in a direction generally transverse to said upright direction for providing an overhang to interlockingly engage said plastic liner,
- said plastic cap including means for reinforcing said liner-retaining lip comprising a plurality of circumferentially spaced integral gussets extending between said liner-retaining lip and said skirt.
- 40. A composite closure in accordance with claim 39 wherein said overhang is mushroom-shaped.
- 41. A composite closure for a container, such as a bottle, comprising:
- a plastic cap having a top wall portion with a plurality of liner-engaging pedestals extending therefrom, said liner-engaging pedestals having portions spaced from each other to define liner-receiving spaces therebetween, each of said pedestals having a free end spaced from said top wall portion, and said plastic cap having an annular skirt depending from said top wall portion and bounding said liner-engaging pedestals and said liner-receiving spaces, and an annular liner-retaining lip; and
- a substantially fluid-impervious plastic liner disposed in said liner-receiving spaces and connected to said pedestals for engaging and fluidly sealing said container, said plastic liner having an annular sealing portion adjacent said skirt and said liner-retaining lip and a centrally disposed portion connected to said annular sealing portion, said centrally disposed portion extending from a position adjacent said top wall portion to a position spaced from the free ends of said pedestals in a direction generally away from said top wall portion for overlying said pedestals, wherein at least some of said pedestals have an overhang for interlockingly engaging said liner;
- said plastic cap including means for reinforcing said liner-retaining lip comprising a plurality of circumferentially spaced integral gussets extending between said liner retaining lip and said skirt.
- 42. A composite closure in accordance with claim 41, wherein
- said annular sealing portion is substantially thicker than said centrally disposed portion and includes a generally frusto-conical sealing surface adapted to sealingly engage said container.
- 43. A composite closure in accordance with claims 39 or 41,
- wherein said annular sealing portion is substantially thicker than said centrally disposed portion and includes a generally frusto-conical sealing surface adapted to sealingly engage said container.
- 44. A composite closure for a container, such as a bottle, comprising:
- a plastic cap having a top wall portion with a plurality of liner-engaging pedestals extending therefrom, said liner-engaging pedestals having portions spaced from each other to define liner-receiving spaces therebetween, each of said pedestals having a free end spaced from said top wall portion, and said plastic cap having an annular skirt depending from said top wall portion and bounding said liner-engaging pedestals and said liner-receiving spaces; and
- a substantially fluid-impervious plastic liner disposed in said liner-receiving spaces and connected to said pedestals for engaging and fluidly sealing said container, said plastic liner having an annular sealing portion adjacent said skirt and a centrally disposed portion connected to said annular sealing portion, said centrally disposed portion extending from a position adjacent said top wall portion to a position spaced from the free ends of said pedestals in a direction generally away from said top wall portion for overlying said pedestals, said pedestals including fusible pedestals having a heat concentration zone that is thermally fused to said plastic liner;
- said plastic cap including an annular, inwardly extending liner-retaining lip engaging said annular sealing portion of said plastic liner, said plastic cap including a plurality of circumferentially spaced gussets extending between said liner-retaining lip and said annular skirt.
- 45. A composite closure in accordance with claim 44, wherein each of said fusible pedestals has a cylindrical configuration with a circular edge that defines at least part of said heat concentration zone.
- 46. A composite closure in accordance with claim 44, wherein each of said fusible pedestals has an apex that defines at least part of said heat concentration zone.
- 47. A composite closure for a container comprising:
- a plastic cap having a top wall portion and an annular skirt, said top wall portion including a plurality of liner-engaging pedestals extending therefrom, said pedestals having portions spaced from each other to define liner-receiving spaces therebetween, said plastic cap having an annular liner-retaining lip in spaced relation to said pedestals, and
- a substantially fluid-impervious plastic liner disposed in said liner-receiving spaces and including an annular bead portion adjacent to said liner-retaining lip, said liner being connected to said pedestals for engaging and fluidly sealing said container,
- said plastic cap including a plurality of circumferentially spaced gussets extending between said liner-retaining lip and said annular skirt for reinforcing said lip.
- 48. A composite closure in accordance with claim 47, wherein
- at least some of said pedestals include overhanging portions for interlocking said liner with said cap.
- 49. A composite closure in accordance with claim 47, wherein
- said liner is thermally fused to at least some of said pedestals.
- 50. A composite closure in accordance with claim 47, wherein
- said liner-engaging pedestals are disposed in a grid-like array for enhancing retention of said liner within said cap.
- 51. A composite closure in accordance with claim 47, and a heat deformable pilfer band detachably connected to said skirt.
- 52. A composite closure for a container comprising:
- a plastic cap including a top wall portion, an annular skirt portion, and an inwardly extending annular liner-retaining lip, and
- a substantially fluid-impervious plastic liner disposed adjacent said top wall portion including a centrally disposed portion, and an annular bead portion engaging and retained by said annular lip,
- said plastic cap including means for reinforcing said liner-retaining lip comprising a plurality of circumferentially spaced gussets extending between said liner-retaining lip and said annular skirt portion,
- said annular sealing portion being substantially thicker than said centrally disposed portion, and including a generally frusto-conical sealing surface adapted to sealingly engage said container.
- 53. A composite closure in accordance with claim 52, and a plurality of liner-engaging pedestals integral with said top wall portion for retaining said plastic liner within said cap.
- 54. A composite closure in accordance with claim 53, wherein at least some of said pedestals include portions thermally fused with said plastic liner.
- 55. A composite closure in accordance with claim 53, wherein said plastic liner is mechanically connected to said pedestals.
- 56. A composite closure in accordance with claim 55, wherein at least some of said pedestals are generally mushroom-shaped and include overhanging portions for mechanically connecting said liner to said pedestals.
- 57. A composite closure in accordance with claim 53, and a heat deformable pilfer band detachably connected to said skirt.
- 58. A composite closure for a container, such as a bottle, comprising:
- a plastic cap having a top wall portion with a plurality of liner-engaging pedestals extending therefrom, said liner-engaging pedestals having portions spaced from each other to define liner-receiving spaces therebetween, each of said pedestals having a free end spaced from said top wall portion, and said plastic cap having an annular skirt depending from said top wall portion and bounding said liner-engaging pedestals and said liner-receiving spaces; and
- a substantially fluid-impervious plastic liner disposed in said liner-receiving spaces and connected to said pedestals for engaging and fluidly sealing said container, said plastic liner having an annular sealing portion adjacent said skirt and a centrally disposed portion connected to said annular sealing portion, said centrally disposed portion extending from a position adjacent said top wall portion to a position spaced from the free ends of said pedestals in a direction generally away from said top wall portion for overlying said pedestals, said pedestals including at least some fusible pedestals that are pyramid-shaped and have an apex that defines at least part of a heat concentration zone that is thermally fused to said liner,
- said plastic cap including an annular, inwardly extending liner-retaining lip engaging said annular sealing portion of said plastic liner, and a plurality of circumferentially spaced gussets extending between said liner-retaining lip and said annular skirt.
- 59. A composite closure for a container, comprising:
- a plastic cap having a top wall portion and an annular skirt portion depending therefrom, said plastic cap including an inwardly extending annular lip spaced from said top wall portion and defining a recess with said top wall portion, and a plurality of liner-engaging pedestals extending integrally from said top wall portion, and
- a plastic liner disposed adjacent said top wall portion and retained within said cap by said pedestals, said plastic liner including an annular sealing bead portion substantially filling said recess and adapted to sealingly engage said container.
- 60. A composite closure in accordance with claim 59, wherein at least some of said pedestals are upset to include overhanging portions for interlockingly engaging said plastic liner.
- 61. A composite closure in accordance with claim 60, wherein
- said pedestals are disposed in a grid-like array across said top wall portion.
- 62. A composite closure in accordance with claim 59, wherein
- said plastic liner is thermally fused to at least some of said pedestals.
- 63. A composite closure in accordance with claim 59, and
- a heat deformable pilfer band detachably connected to said annular skirt.
- 64. A composite closure for a container, comprising:
- a plastic cap having a top wall portion and an annular skirt portion depending therefrom, said plastic cap including an inwardly extending liner-retaining lip spaced from said top wall portion and having a non-horizontal surface facing said top wall portion, said lip being formed before said cap is lined and
- a compression molded plastic liner formed in said cap adaped to sealingly engage said container and being retained within said plastic cap by said liner-retaining lip.
- 65. A composite closure for a container, comprising:
- a plastic cap having a top wall portion and an annular skirt portion depending therefrom, said plastic cap including an inwardly extending liner-retaining lip spaced from said top wall portion and having a non-horizontal surface facing said top wall portion, and
- a plastic liner adapted to sealingly engage said container retained within said plastic cap by said liner-retaining lip, said plastic cap including a plurality of liner-engaging pedestals integral with said top wall portion.
- 66. A composite closure for a container, comprising:
- a compression molded plastic cap having a top wall portion, an annular skirt portion depending from said top wall portion and including an internal thread formation, and an inwardly extending annular lip spaced from said top wall portion and defining a recess therewith, said annular lip being formed before said cap is lined and having an inside diameter less than the inside diameter of said thread formation; and
- a compression molded plastic liner retained within said cap by said annular lip, said annular lip retaining said plastic liner during formation of said plastic liner in said cap.
- 67. A composite closure in accordance with claim 66, and
- a plurality of liner-engaging pedestals extending integrally from said top wall portion.
- 68. A composite closure for a container comprising:
- a plastic cap including a top wall portion, an annular skirt portion having an internal thread formation, a pilfer-band detachably connected to said skirt portion by spaced frangible bridge means, and an inwardly extending annular liner-retaining lip defining an annular recess with said top wall portion, and
- a substantially fluid-impervious plastic liner disposed adjacent said top wall portion including a centrally disposed portion, and an annular bead portion engaging and retained by said annular lip and substantially filling said annular recess,
- said cap including a plurality of liner-engaging projections integral with said top wall portion for retaining said liner within said plastic cap.
- 69. A composite closure for a container comprising:
- a compression molded plastic cap including a top wall portion, an annular skirt portion having an internal thread formation, at least one liner-engaging projection extending integrally from said top wall portion, and an inwardly extending annular liner-retaining lip spaced from said top wall portion and defining a recess therewith; and
- a substantially fluid-impervious compression molded plastic liner disposed adjacent said top wall portion in engagement with said liner-engaging projection, and including an annular bead portion adapted to sealingly engage said container, said annular bead portion being engaged and retained by said annular lip, said annular bead portion being at least partially disposed within said annular recess.
- 70. A composite closure in accordance with claim 69, including a plurality of liner-engaging projections.
- 71. A composite closure in accordance with claim 70, wherein at least some of said projections are thermally fused to said plastic liner.
- 72. A composite closure in accordance with claim 70, wherein at least some of said projections mechanically retain said plastic liner within said cap.
- 73. A composite closure in accordance with claim 69, 70, 71, or 72, and a pilfer-band connected to said skirt portion by a plurality of spaced frangible bridge means.
- 74. A composite closure for a container having a finish, comprising:
- a plastic cap including a top wall portion and a depending annular skirt portion having an internal thread formation, and lip means integral with and extending inwardly of said skirt portion, said lip means being spaced from said top wall portion and defining a recess therewith; and
- a substantially fluid-impervious plastic liner disposed adjacent said top wall portion including a peripheral sealing portion positioned adjacent said skirt portion adapted to sealingly engage the finish of said container, said lip means confining said peripheral sealing portion within said recess to retain said plastic liner within said plastic cap;
- said plastic cap including liner-retention means integral with said top wall portion for retaining said plastic liner in position within said plastic cap.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of application Ser. No. 077,566, filed Sept. 21, 1979, now abandoned.
US Referenced Citations (24)
Foreign Referenced Citations (6)
Number |
Date |
Country |
2825886 |
Jan 1979 |
DEX |
851275 |
Oct 1939 |
FRX |
464721 |
Dec 1968 |
CHX |
283447 |
Jan 1928 |
GBX |
1384370 |
Feb 1975 |
GBX |
1577663 |
Oct 1980 |
GBX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
77566 |
Sep 1979 |
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