Patent EP0026405A2 successfully refreshed from Google Patents.
EP0026405A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Process and apparatus for making a composite closure
Assignee: HC Industries Inc
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Filing: 1980-09-19
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Granted: —
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Expires: 2000-09-19
Abstract
Abstract A process for making a composite closure (100) having a plastic cap (104) with specially configured pedestals (132; 152;162) that are interconnected to a plasticliner (106). In one embodiment, the pedestals (132) are each formed with an overhang (140), such as a mushroom-shaped overhang, to provide a mechanical interlock with the liner (106). In other embodiments, the pedestals (152;162) are each formed with a fusible heat concentration zone that is fused to the liner (106) as the liner is compression molded and heated in the cap (104). In one embodiment, each of the fusible pedestals (152) are formed with a cylindrical configuration. In another embodiment, each of the fusible pedestals (162) are formed in the shape of a pyramid.
Inventors
- 👤 Sheldon L. Wilde
- 👤 Thomas J. Mccandless
- 👤 Robert M. Saunders
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 23:23
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/045; B29; B29C; B29C37/00; B29C37/0078; B29C37/0082; B29C43/00; B29C43/02; B29C43/021; B29C43/32; B29C43/36; B29C43/42; B29C59/00; B29C59/02; B29C59/022; B29C67/00; B29C67/0003; B29C67/0044; B29C70/00; B29C70/68; B29C70/78; B29C70/80; B29C2793/00; B29C2793/0009; B29C2793/0018; B29C2793/0036; B29C2793/009; B29L; B29L2001/00; B29L2031/00; B29L2031/56; B29L2031/565; Y; Y10; Y10S; Y10S425/00; Y10S425/809
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
95 words
A process for making a composite closure for a container, such as a bottle, comprising the steps of: forming a plastic cap with a top wall portion and an annular skirt; forming a plurality of plastic pedestals extending integrally from said top wall portion generally in the direction of said skirt; positioning said pedestals in spacial relationship to each other to define a plurality of liner-receiving passageways; placing a predetermined amount of molten plastic in said liner-receiving passageways; and forming a liner with said molten plastic in said liner-receiving passageways to form a composite closure.
Claim 2
Dependent Claim
95 words
A process for making a composite closure for a container, such as a bottle, comprising the steps of: forming a plastic cap with a top wall portion and an annular skirt; forming a plurality of plastic pedestals extending integrally from said top wall portion generally in the direction of said skirt; positioning said pedestals in spacial relationship to each other to define a plurality of liner-receiving passageways; placing a predetermined amount of molten plastic in said liner-receiving passageways; and forming a liner with said molten plastic in said liner-receiving passageways to form a composite closure.
Claim 3
Dependent Claim
23 words
A process of making a composite closure in accordance with claim 1 wherein said liner and said pedestals are fused to each other.
Claim 4
Dependent Claim
24 words
A process of making a composite closure in accordance with claim 1 wherein said liner and said pedestals are interlockingly engaged to each other.
Claim 5
Dependent Claim
92 words
A process for making a composite closure for a container, such as a bottle, comprising the steps of: forming a cap having a top wall portion, an annular skirt and a plurality of liner-engaging pedestals extending from said top wall portion in the direction of said skirt, including spacing portions of said liner-engaging pedestals from each other to define liner-receiving passageways therebetween; depositing molten liner-forming material in said liner-receiving passageways of said cap; and connecting said liner-forming material to said liner-engaging pedestals of said cap to form a liner in said cap.
Claim 6
Dependent Claim
92 words
A process for making a composite closure for a container, such as a bottle, comprising the steps of: forming a cap having a top wall portion, an annular skirt and a plurality of liner-engaging pedestals extending from said top wall portion in the direction of said skirt, including spacing portions of said liner-engaging pedestals from each other to define liner-receiving passageways therebetween; depositing molten liner-forming material in said liner-receiving passageways of said cap; and connecting said liner-forming material to said liner-engaging pedestals of said cap to form a liner in said cap.
Claim 7
Dependent Claim
41 words
A process for making a composite closure in accordance with claim 4 including the step of upsetting at least some of said pedestals to form an overhang, and wherein said connecting step includes interlockingly connecting said liner to said upset pedestals.
Claim 8
Independent Claim
116 words
An apparatus for making a composite closure for a container, such as a bottle, comprising: means for forming a plastic cap (104) with a top wall portion (110) and an annular skirt (11 . 2); means for forming a plurality of plastic pedestals (132;152;162) extending integrally from said top wall portion (110) generally in the direction of said skirt (112) and for positioning said pedestals (132;152;162) in spacial relationship to each other to define a plurality of liner-receiving passageways (134); means for placing a predetermined amount of molten plastic in said liner-receiving passageways (134); and means for forming a liner (106) with said molten plastic in said liner-receiving passageways (134) to form a composite closure (100;150;160).
Claim 9
Independent Claim
116 words
An apparatus for making a composite closure for a container, such as a bottle, comprising: means for forming a plastic cap (104) with a top wall portion (110) and an annular skirt (11 . 2); means for forming a plurality of plastic pedestals (132;152;162) extending integrally from said top wall portion (110) generally in the direction of said skirt (112) and for positioning said pedestals (132;152;162) in spacial relationship to each other to define a plurality of liner-receiving passageways (134); means for placing a predetermined amount of molten plastic in said liner-receiving passageways (134); and means for forming a liner (106) with said molten plastic in said liner-receiving passageways (134) to form a composite closure (100;150;160).
Claim 10
Dependent Claim
24 words
An apparatus in accordance with claim 6 wherein said liner-forming means includes means for fusing said liner (106) and pedestals (152;162) to each other.
Claim 11
Dependent Claim
18 words
An apparatus in accordance with claim 6 including means to interlockingly engage said pedestals (132) to said liner.
Claim 12
Dependent Claim
26 words
An apparatus in accordance with claim 6 including means for forming an annular liner-retaining lip (116) for defining an annular retention area for said liner (106).
Claim 13
Dependent Claim
27 words
An apparatus in accordance with claim 6 including means for spinning said plastic cap (104) about its axis while molten to enhance the strength of said cap.
References Cited (Backward Citations)
No citation records indexed.
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