US3907156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container end closure with metal plate
Assignee: Weatherchem Corp
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Filing: 1974-06-20
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Granted: 1975-09-23
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Expires: 1994-06-20
Abstract
Abstract A dispensing container is disclosed which includes a fiber tube, a metal top plate having an opening, and a plastic self-locking end closure received within the opening. The locking feature includes a plurality of relating narrow, peripherally spaced, axially extending radially reinforced barbs, one of which engages the rim of the opening.
Inventors
- 👤 Iii Albert J Weatherhead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:22
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/26; B65D47/261; B65D47/265; B65D39/00; B65D39/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
197 words
In combination, an end closure and a metal plate, said metal plate including an axially extending marginal wall terminating at a marginal edge and defining an opening, and said end closure being plastic and including a laterally extending end portion, an annular skirt portion extending axially from said end portion, said skirt portion having an inner surface and a generally smooth outer surface being received within said marginal wall, and a plurality of relatively narrow locking means disposed in peripherally spaced positions holding said skirt portion in said marginal wall, each of said locking means including a plurality of axially spaced locking barbs extending radially outwardly from said outer surface and terminating at an outermost barb surface, reinforcing strut means extending from said end portion to said inner surface immediately adjacent said locking barbs and acting against radially inward movement of said locking barbs, said marginal wall radially engaging and radially inwardly deforming said outermost barb surface of at least one of said barbs disposed nearer to said end portion, and said marginal edge axially engaging at Least one of said barbs disposed farther from said end portion to lock said end closure onto said metal plate.
Claim 2
Dependent Claim
197 words
In combination, an end closure and a metal plate, said metal plate including an axially extending marginal wall terminating at a marginal edge and defining an opening, and said end closure being plastic and including a laterally extending end portion, an annular skirt portion extending axially from said end portion, said skirt portion having an inner surface and a generally smooth outer surface being received within said marginal wall, and a plurality of relatively narrow locking means disposed in peripherally spaced positions holding said skirt portion in said marginal wall, each of said locking means including a plurality of axially spaced locking barbs extending radially outwardly from said outer surface and terminating at an outermost barb surface, reinforcing strut means extending from said end portion to said inner surface immediately adjacent said locking barbs and acting against radially inward movement of said locking barbs, said marginal wall radially engaging and radially inwardly deforming said outermost barb surface of at least one of said barbs disposed nearer to said end portion, and said marginal edge axially engaging at Least one of said barbs disposed farther from said end portion to lock said end closure onto said metal plate.
Claim 3
Dependent Claim
21 words
The combination in accordance with claim 1 wherein said locking barbs each extend through an arc of less than ten degrees.
Claim 4
Dependent Claim
22 words
The combination in accordance with claim 2 wherein said locking barbs each extend through an arc of not greater than three degrees.
Claim 5
Dependent Claim
16 words
The combination in accordance with claim 2 wherein said locking means are one-hundred twenty degrees apart.
Claim 6
Dependent Claim
39 words
The combination in accordance with claim 1 wherein said end portion includes a generally flat axially recessed center portion, and each of said reinforcing struts extend between said inner surface adjacent said locking barbs and said recessed center portion.
Claim 7
Dependent Claim
24 words
The combination in accordance with claim 1 wherein said locking means provide the sole means for holding said end closure on said metal plate.
Claim 8
Dependent Claim
37 words
The combination in accordance with claim 1 wherein said outer surface of said skirt portion from which said locking barbs project and said marginal wall of said metal plate are dimensioned to provide an interference fit therebetween.
Claim 9
Dependent Claim
156 words
In combination, an end closure and a metal plate, said metal plate including a marginal surface defining an opening, and said end closure being plastic and including a laterally extending end portion, an annular skirt portion extending axially from said end portion, said skirt portion having an inner surface and a generally smooth outer surface being received within said marginal edge, and a plurality of relatively narrow locking means disposed in peripherally spaced positions holding said skirt portion in said marginal edge, each of said locking means including a plurality of axially spaced locking barbs extending radially outwardly from said outer surface and terminating at an outermost barb surface, reinforcing strut means extending from said end portion to said inner surface immediately adjacent said locking barbs and acting against radially inward movement of said locking barbs, and said marginal surface engaging at least one of said barbs to lock said end closure onto said metal plate.
Claim 10
Dependent Claim
156 words
In combination, an end closure and a metal plate, said metal plate including a marginal surface defining an opening, and said end closure being plastic and including a laterally extending end portion, an annular skirt portion extending axially from said end portion, said skirt portion having an inner surface and a generally smooth outer surface being received within said marginal edge, and a plurality of relatively narrow locking means disposed in peripherally spaced positions holding said skirt portion in said marginal edge, each of said locking means including a plurality of axially spaced locking barbs extending radially outwardly from said outer surface and terminating at an outermost barb surface, reinforcing strut means extending from said end portion to said inner surface immediately adjacent said locking barbs and acting against radially inward movement of said locking barbs, and said marginal surface engaging at least one of said barbs to lock said end closure onto said metal plate.
Claim 11
Dependent Claim
21 words
The combination in accordance with claim 8 wherein said locking barbs each extend through an arc of less than ten degrees.
Claim 12
Dependent Claim
22 words
The combination in accordance with claim 9 wherein said locking barbs each extend through an arc of not greater than three degrees.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |