US3757986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure member for metal containers and method of assembly
Assignee: Gulf & Western Ind Prod Co
•
Filing: 1971-01-18
•
Granted: 1973-09-11
•
Expires: 1991-01-18
Abstract
Abstract A closure member for a metal container comprising a plastic sleeve member snapped into an opening in the metal container and a plastic plug removably received within the sleeve member. The sleeve member has a radially projecting shoulder at one end which extends into an annular groove in an embossment on the metal container surrounding the opening therein. During insertion of the sleeve member into the container opening, the radial shoulder is bent radially inwardly by the smaller diameter surface of the embossment adjacent the annular groove therein to permit movement of the radial shoulder therepast, after which the radial shoulder returns to its original shape where it is confined within the annular groove, locking the sleeve member in place. An axially and radially inwardly extending lip on the embossment overlies the radial shoulder on the sleeve member providing a frustoconical bearing and sealing surface for sealing engagement by a frusto-conical shoulder on the plug when tightened in the sleeve member.
Inventors
- 👤 J Eichinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:35
CPC Classifications
B; B65; B65D; B65D39/00; B65D39/08; Y; Y10; Y10S; Y10S220/00; Y10S220/917
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
246 words
In combination, a metal container having an embossment projecting outwardly from a wall thereof, an opening in said embossment, and a plastic closure member for said opening, said plastic closure member comprising a plastic sleeve member and a plastic plug, said sleeve member having a non-circular flange on one end and a circular flange on the other end, and said embossment having a non-circular recess communicating with the interior of said container in which said non-circular flange on said sleeve member is disposed to retain said sleeve member against rotation within said embossment and an internal annular groove axially outwardly of said recess in which said circular flange on said sleeve member is disposed to lock said sleeve member against axial movement within said embossment, said embossment also having an axially and inwardly extending frustoconical lip overlying said circular flange on said sleeve member and covering the end of same, said sleeve member and plug being threaded for securing said plug in said sleeve member, said plug having a frusto-conical shoulder overlying said frusto-conical lip on said embossment when said plug is threaded into said sleeve member, tightening of said plug in said sleeve member causing both said sleeve member and plug to axially elongate to maintain a sealing tension in said sleeve member and plug providing a fluid seal between said shoulder on said plug and said inturned lip and between said non-circular flange on said sleeve member and the interior surface of said embossment.
Claim 2
Dependent Claim
246 words
In combination, a metal container having an embossment projecting outwardly from a wall thereof, an opening in said embossment, and a plastic closure member for said opening, said plastic closure member comprising a plastic sleeve member and a plastic plug, said sleeve member having a non-circular flange on one end and a circular flange on the other end, and said embossment having a non-circular recess communicating with the interior of said container in which said non-circular flange on said sleeve member is disposed to retain said sleeve member against rotation within said embossment and an internal annular groove axially outwardly of said recess in which said circular flange on said sleeve member is disposed to lock said sleeve member against axial movement within said embossment, said embossment also having an axially and inwardly extending frustoconical lip overlying said circular flange on said sleeve member and covering the end of same, said sleeve member and plug being threaded for securing said plug in said sleeve member, said plug having a frusto-conical shoulder overlying said frusto-conical lip on said embossment when said plug is threaded into said sleeve member, tightening of said plug in said sleeve member causing both said sleeve member and plug to axially elongate to maintain a sealing tension in said sleeve member and plug providing a fluid seal between said shoulder on said plug and said inturned lip and between said non-circular flange on said sleeve member and the interior surface of said embossment.
Claim 3
Dependent Claim
18 words
The combination of claim 1 wherein said circular flange on said sleeve member has a rounded outer edge.
Claim 4
Dependent Claim
16 words
The combination of claim 1 wherein said sleeve member and plug are made of acetal resin.
Claim 5
Dependent Claim
24 words
The combination of claim 1 wherein the entire interior surface of said metal container and said embossment are lined with a protective plastic coating.
References Cited (Backward Citations)
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Cited
US1645163A
Cited
US2117180A
Cited
US2614868A
Cited
US2900103A
Cited
US3432070A
Cited
US3437226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |