US4407422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite closure
Assignee: H-C PLASTIC Inc A DE CORP
•
Filing: 1981-10-13
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Granted: 1983-10-04
•
Expires: 2001-10-13
Abstract
Abstract A composite closure for a bottle or like container is disclosed which includes a compression molded plastic cap and a plastic sealing liner retained within the cap. Effective retention of the sealing liner in position within the plastic cap is provided by an inwardly extending annular lip disposed between an internal thread formation of the plastic cap and its top wall portion, and a ring of projections extending integrally from the inner surface of the top wall portion of the cap. The sealing liner includes an annular bead portion adjacent to and in engagement with the annular lip and ring of projections so that the liner is effectively retained in position within the plastic cap.
Inventors
- 👤 Sheldon L. Wilde
- 👤 Thomas J. McCandless
- 👤 Robert M. Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:39
CPC Classifications
B; B29; B29C; B29C37/00; B29C37/0003; B29C37/0017; B29C57/00; B29C69/00; B29C69/02; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/045; B65D41/32; B65D41/34; B65D41/3423; B65D41/3428; B65D41/3461; B65D41/3466; B26; B26F; B26F2210/00; B26F2210/04; B29C2791/00; B29C2791/001; B29C2793/00; B29C2793/009; B29C37/0078; B29C37/0082; B29C43/00; B29C43/02; B29C43/18; B29C43/183; B29C43/184; B29C53/00; B29C53/02; B29L; B29L2031/00; B29L2031/56; B29L2031/565; B65D2401/00; B65D2401/15; B65D2401/30; B65D2401/35
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
87 words
A composite closure for a container, comprising a plastic cap having a top wall portion and an annular skirt portion having a thread formation, a disc-shaped plastic sealing liner disposed within said cap generally adjacent said top wall portion including an annular sealing portion having a generally inwardly facing sealing surface, and means for retaining said liner within said cap comprising a plurality of projections on the inner surface of said top wall portion arranged in circumferentially spaced relation in a ring engaging said annular sealing portion.
Claim 2
Dependent Claim
87 words
A composite closure for a container, comprising a plastic cap having a top wall portion and an annular skirt portion having a thread formation, a disc-shaped plastic sealing liner disposed within said cap generally adjacent said top wall portion including an annular sealing portion having a generally inwardly facing sealing surface, and means for retaining said liner within said cap comprising a plurality of projections on the inner surface of said top wall portion arranged in circumferentially spaced relation in a ring engaging said annular sealing portion.
Claim 3
Dependent Claim
36 words
The composite closure of claim 1, wherein said retaining means further include an annular lip extending inwardly of said cap between said thread formation and said top wall portion in engagement with said annular sealing portion.
Claim 4
Dependent Claim
21 words
The composite closure of claim 2, wherein said annular sealing portion is substantially thicker than the central portion of said liner.
Claim 5
Dependent Claim
25 words
The composite closure of claim 3, wherein the inside diameter of said ring of projections is less than the inside diameter of said annular lip.
Claim 6
Dependent Claim
25 words
The composite closure of claim 4, wherein the outside diameter of said ring of projections is less than the inside diameter of said annular lip.
Claim 7
Dependent Claim
25 words
The composite closure of claim 3 wherein the inside diameter of said ring of projections is greater than the inside diameter of said annular lip.
Claim 8
Dependent Claim
159 words
A composite closure for a container, comprising: a plastic cap having a top wall portion and an annular skirt portion having a thread formation, a plastic sealing liner disposed within said cap generally adjacent said top wall portion including an annular sealing portion, and means for retaining said liner within said cap comprising a plurality of projections on the inner surface of said top wall portion arranged in circumferentially spaced relation in a ring engaging said annular sealing portion, said retaining means further including an annular lip extending inwardly of said cap between said thread formation and said top wall portion in engagement with said annular sealing portion, said annular sealing portion being substantially thicker than the central portion of said liner, the inside diameter of said ring of projections being less than the inside diameter of said annular lip, and the outside diameter of said ring of projections being greater than the inside diameter of said annular lip.
Claim 9
Dependent Claim
159 words
A composite closure for a container, comprising: a plastic cap having a top wall portion and an annular skirt portion having a thread formation, a plastic sealing liner disposed within said cap generally adjacent said top wall portion including an annular sealing portion, and means for retaining said liner within said cap comprising a plurality of projections on the inner surface of said top wall portion arranged in circumferentially spaced relation in a ring engaging said annular sealing portion, said retaining means further including an annular lip extending inwardly of said cap between said thread formation and said top wall portion in engagement with said annular sealing portion, said annular sealing portion being substantially thicker than the central portion of said liner, the inside diameter of said ring of projections being less than the inside diameter of said annular lip, and the outside diameter of said ring of projections being greater than the inside diameter of said annular lip.
Claim 10
Dependent Claim
18 words
The composite closure of claims 4, 7, 5, or 6, wherein each of said projections is generally cylindrical.
Claim 11
Dependent Claim
19 words
The composite closure of claim 8, and pilfer band means formed integrally with said skirt portion of said cap.
Claim 12
Dependent Claim
14 words
The composite closure of claim 7, wherein each of said projections is generally cylindrical.
Claim 13
Dependent Claim
19 words
The composite closure of claim 7, and pilfer band means formed integrally with said skirt portion of said cap.
Claim 14
Dependent Claim
87 words
A composite closure for a container, comprising a plastic cap having a top wall portion and an annular skirt portion, a plastic cap sealing liner formed in said cap and disposed within said cap adjacent said top wall portion, and means for retaining said liner within said cap comprising a plurality of projections on the inner surface of said top wall portion arranged in circumferentially spaced relation in a ring adjacent said skirt portion, and an inwardly extending, linerengaging annular lip spaced from said top wall portion.
Claim 15
Dependent Claim
87 words
A composite closure for a container, comprising a plastic cap having a top wall portion and an annular skirt portion, a plastic cap sealing liner formed in said cap and disposed within said cap adjacent said top wall portion, and means for retaining said liner within said cap comprising a plurality of projections on the inner surface of said top wall portion arranged in circumferentially spaced relation in a ring adjacent said skirt portion, and an inwardly extending, linerengaging annular lip spaced from said top wall portion.
Claim 16
Dependent Claim
29 words
The composite closure of claim 12, wherein said sealing liner includes a central portion and a relatively thick annular sealing bead portion, said projections engaging said annular bead portion.
Claim 17
Dependent Claim
143 words
A composite closure for a container, comprising a compression molded plastic cap having a top wall portion and an annular skirt portion having an internal thread formation, a plastic sealing liner positioned within said cap generally adjacent said top wall portion, said liner having a central portion and an annular sealing bead portion, and liner retaining means comprising an integral annular lip extending inwardly of said cap between said thread formation and top wall portion and defining with said top wall portion an annular recess within which at least a portion of said annular bead portion is disposed, said annular lip having an inside diameter generally equal to or less than the inside diameter of said thread formation, and a ring of circumferentially spaced projections extending integrally from the inner surface of said top wall portion in engagement with said annular bead portion.
Claim 18
Dependent Claim
143 words
A composite closure for a container, comprising a compression molded plastic cap having a top wall portion and an annular skirt portion having an internal thread formation, a plastic sealing liner positioned within said cap generally adjacent said top wall portion, said liner having a central portion and an annular sealing bead portion, and liner retaining means comprising an integral annular lip extending inwardly of said cap between said thread formation and top wall portion and defining with said top wall portion an annular recess within which at least a portion of said annular bead portion is disposed, said annular lip having an inside diameter generally equal to or less than the inside diameter of said thread formation, and a ring of circumferentially spaced projections extending integrally from the inner surface of said top wall portion in engagement with said annular bead portion.
Claim 19
Dependent Claim
22 words
The composite closure of claim 11, wherein the inside diameter of said ring is less than the inside diameter of said lip.
Claim 20
Dependent Claim
24 words
A composite closure in accordance with claim 15, wherein the outside diameter of said ring is les than the inside diameter of said lip.
Claim 21
Dependent Claim
33 words
The composite closure of claim 14, wherein said projections extend a distance from the inner surface of said top wall portion less than the thickness of said central portion of said sealing liner.
Claim 22
Dependent Claim
27 words
The composite closure of claim 14, including pilfer band means formed integrally with said skirt portion including a plurality of circumferentially spaced, relatively flexible inwardly extending projections.
Claim 23
Dependent Claim
172 words
A composite closure for a container, comprising a compression molded plastic cap having a top wall portion and an annular skirt having an internal thread formation, a plastic sealing liner positioned within said cap generally adjacent said top wall portion, said liner having a central portion and an annular sealing bead portion, and liner retaining means comprising an integral annular lip extending inwardly of said cap between said thread formation and said top wall portion and defining with said top wall portion an annular recess within which a portion of said annular bead portion is disposed, said annular lip having an inside diameter generally equal to or less than the inside diameter of said thread formation, and a ring of circumferentially spaced projections extending integrally from the inner surface of said top wall portion in engagement with said annular bead portion, the inside diameter of said ring being less than the inside diameter of said lip, and the outside diameter of said ring being greater than the inside diameter of said lip.
Claim 24
Dependent Claim
172 words
A composite closure for a container, comprising a compression molded plastic cap having a top wall portion and an annular skirt having an internal thread formation, a plastic sealing liner positioned within said cap generally adjacent said top wall portion, said liner having a central portion and an annular sealing bead portion, and liner retaining means comprising an integral annular lip extending inwardly of said cap between said thread formation and said top wall portion and defining with said top wall portion an annular recess within which a portion of said annular bead portion is disposed, said annular lip having an inside diameter generally equal to or less than the inside diameter of said thread formation, and a ring of circumferentially spaced projections extending integrally from the inner surface of said top wall portion in engagement with said annular bead portion, the inside diameter of said ring being less than the inside diameter of said lip, and the outside diameter of said ring being greater than the inside diameter of said lip.
Claim 25
Dependent Claim
159 words
A composite closure for a container, comprising a compression molded plastic cap having a top wall portion and an annular skirt having an internal thread formation, a plastic sealing liner positioned within said cap generally adjacent said top wall portion, said liner having a central portion and an annular sealing bead portion, and liner retaining means comprising an integral annular lip extending inwardly of said cap between said thread formation and said top wall portion and defining with said top wall portion an annular recess within which at least a portion of said annular bead portion is disposed, said annular lip having an inside diameter generally equal to or less than the inside diameter of said thread formation, and a ring of circumferentially spaced projection extending integrally from the inner surface of said top wall portion in engagement with said annular bead portion, wherein the inside diameter of said ring is greater than the inside diameter of said lip.
Claim 26
Dependent Claim
159 words
A composite closure for a container, comprising a compression molded plastic cap having a top wall portion and an annular skirt having an internal thread formation, a plastic sealing liner positioned within said cap generally adjacent said top wall portion, said liner having a central portion and an annular sealing bead portion, and liner retaining means comprising an integral annular lip extending inwardly of said cap between said thread formation and said top wall portion and defining with said top wall portion an annular recess within which at least a portion of said annular bead portion is disposed, said annular lip having an inside diameter generally equal to or less than the inside diameter of said thread formation, and a ring of circumferentially spaced projection extending integrally from the inner surface of said top wall portion in engagement with said annular bead portion, wherein the inside diameter of said ring is greater than the inside diameter of said lip.
Claim 27
Dependent Claim
23 words
The composite closure of claims 19 or 20, wherein said annular bead portion of said liner includes a generally inwardly facing sealing surface.
Claim 28
Dependent Claim
19 words
The composite closure of claim 21, and pilfer band means formed integrally with the skirt portion of said cap.
Claim 29
Dependent Claim
17 words
The composite closure of claim 22, wherein said pilfer band means comprises a heat shrinkable pilfer band.
Claim 30
Dependent Claim
30 words
The composite closure of claim 22, wherein said pilfer band means comprises a plurality of fingers adapted to engage an associated locking ring on the outer surface of said container.
Claim 31
Dependent Claim
155 words
A composite closure for a container, comprising a compression molded plastic cap having a top wall portion and an annular skirt having an internal thread formation, plastic sealing liner positioned within said cap generally adjacent said top wall portion, said liner having a central portion and an annular sealing bead portion, and liner retaining means comprising an integral annular lip extending inwardly of said cap between said thread formation and top wall portion and defining with said top wall portion an annular recess within which at least a portion of said annular bead portion is disposed, said annular lip having an inside diameter generally equal to or less than the inside diameter of said thread formation, and a ring of circumferentially spaced projections extending integrally from the inner surface of said top wall portion in engagement with said annular bead portion, and gusset means formed integrally with said plastic cap for reinforcing said annular lip.
Claim 32
Dependent Claim
155 words
A composite closure for a container, comprising a compression molded plastic cap having a top wall portion and an annular skirt having an internal thread formation, plastic sealing liner positioned within said cap generally adjacent said top wall portion, said liner having a central portion and an annular sealing bead portion, and liner retaining means comprising an integral annular lip extending inwardly of said cap between said thread formation and top wall portion and defining with said top wall portion an annular recess within which at least a portion of said annular bead portion is disposed, said annular lip having an inside diameter generally equal to or less than the inside diameter of said thread formation, and a ring of circumferentially spaced projections extending integrally from the inner surface of said top wall portion in engagement with said annular bead portion, and gusset means formed integrally with said plastic cap for reinforcing said annular lip.
Claim 33
Dependent Claim
106 words
A composite closure, comprising: a molded plastic cap having a top wall portion and a depending annular skirt portion, said cap including an inwardly extending lip spaced from said top wall portion and defining an annular recess therewith having a generally concave, inwardly facing surface; and a plastic sealing liner disposed adjacent said top wall portion, and including an annular sealing portion having a generally inwardly facing sealing surface, said annular sealing portion substantially filling said annular recess; said cap including liner retention means integral with said top wall portion and in engagement with said sealing liner for retaining said liner in position within said cap.
Claim 34
Dependent Claim
106 words
A composite closure, comprising: a molded plastic cap having a top wall portion and a depending annular skirt portion, said cap including an inwardly extending lip spaced from said top wall portion and defining an annular recess therewith having a generally concave, inwardly facing surface; and a plastic sealing liner disposed adjacent said top wall portion, and including an annular sealing portion having a generally inwardly facing sealing surface, said annular sealing portion substantially filling said annular recess; said cap including liner retention means integral with said top wall portion and in engagement with said sealing liner for retaining said liner in position within said cap.
Claim 35
Dependent Claim
28 words
The composite closure of claim 26, wherein said liner retention means comprises a plurality of circumferentially spaced projections in engagement with said annular sealing portion of said liner.
Claim 36
Dependent Claim
104 words
A composite closure, comprising a molded plastic cap having a top wall portion, a depending annular skirt portion, and an inwardly extending annular lip spaced from said top wall portion and defining an annular recess therewith; and a plastic sealing liner formed in said cap, including an annular sealing portion engaging said annular lip and substantially filling said recess, said lip being adapted to provide support for sleeve means advanced into said cap during formation of liner in said cap; said cap including liner-engaging means integral with said top wall portion adapted to cooperate with said lip for retaining said liner within said cap.
Claim 37
Dependent Claim
104 words
A composite closure, comprising a molded plastic cap having a top wall portion, a depending annular skirt portion, and an inwardly extending annular lip spaced from said top wall portion and defining an annular recess therewith; and a plastic sealing liner formed in said cap, including an annular sealing portion engaging said annular lip and substantially filling said recess, said lip being adapted to provide support for sleeve means advanced into said cap during formation of liner in said cap; said cap including liner-engaging means integral with said top wall portion adapted to cooperate with said lip for retaining said liner within said cap.
Claim 38
Dependent Claim
40 words
The composite closure of claim 28, wherein said sealing liner includes a central portion, said annular sealing portion being relatively thicker than said central portion, said liner-engaging means comprising a plurality of projections in engagement with said annular sealing portion.
Claim 39
Dependent Claim
23 words
The composite closure of claim 29, and pilfer means depending from said skirt portion including a plurality of inwardly extending, relatively flexible projections.
Claim 40
Dependent Claim
41 words
The composite closure of claim 28, including gusset means integral with said plastic cap for reinforcing said annular lip, said gusset means being spaced from the inward edge of said lip to facilitate support of said sleeve means by said lip.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |