US4520943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclosable plastic container
Assignee: Individual
•
Filing: 1984-07-26
•
Granted: 1985-06-04
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Expires: 2004-07-26
Abstract
Abstract A bucket or jug shaped plastic container is provided with an annular groove in its upper mouth edge portion, and a lid having a depending edge flange is secured on the container by a double sided locking nose engagement between the lid flange and the walls of the groove. The locking engagement is very firm, but is easily releasable by urging the top edge of the outer container wall portion outwardly and downwardly about a lower annular hinge portion of reduced material thickness, whereby the upper locking part of the outer container wall portion is swung out of its locking engagement and down into a selfstabilized position. The locking engagement at the interior side of the lid flange is releasable simply by a local side pressure on the wall of the container, whereafter the lid can be drawn away. The container is reclosable by the lid, and the lid can be relocked by folding the said outer container wall portion up from its lowered position.
Inventors
- 👤 Jens O. Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:58
CPC Classifications
B; B65; B65D; B65D50/00; B65D50/02; B65D50/06; B65D50/066; B65D51/00; B65D51/02; B65D51/08; B65D21/00; B65D21/02; B65D21/0233; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0206; B65D45/00; B65D45/02; B65D45/30; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00027; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00453; B65D2543/00462; B65D2543/00472; B65D2543/00481; B65D2543/0049; B65D2543/00509; B65D2543/00527; B65D2543/00537; B65D2543/00546; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00629; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00796
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
185 words
A sales packing of the bucket or jug type, comprising a plastic container, the mouth edge portion of which is provided with an upper annular groove between an inner mouth flange and an outer mouth flange, and a lid having a depending edge flange, which is received in said edge groove so as to engage underneath an annular locking nose portion of the interior side of the outer mouth flange of the container and be inwardly supported by the exterior side of the inner mouth flange, characterized in that additional cooperating locking nose means are provided on the outside of the inner mouth flange of the container and on the inside of the depending edge flange of the lid, respectively, and that the outer mouth flange of the container is designed so as to be outwardly and downwardly foldable into a swung down position, in which a local, radially inwardly directed pressure thereon will result in the inner mouth flange of the container being resiliently inwardly displaced so as to thereby get released from its locking nose engagement with the edge flange of the lid.
Claim 2
Dependent Claim
185 words
A sales packing of the bucket or jug type, comprising a plastic container, the mouth edge portion of which is provided with an upper annular groove between an inner mouth flange and an outer mouth flange, and a lid having a depending edge flange, which is received in said edge groove so as to engage underneath an annular locking nose portion of the interior side of the outer mouth flange of the container and be inwardly supported by the exterior side of the inner mouth flange, characterized in that additional cooperating locking nose means are provided on the outside of the inner mouth flange of the container and on the inside of the depending edge flange of the lid, respectively, and that the outer mouth flange of the container is designed so as to be outwardly and downwardly foldable into a swung down position, in which a local, radially inwardly directed pressure thereon will result in the inner mouth flange of the container being resiliently inwardly displaced so as to thereby get released from its locking nose engagement with the edge flange of the lid.
Claim 3
Dependent Claim
46 words
A packing according to claim 1, in which the outer mouth flange of the container is connected with the wall of the container through an annular hinge area of reduced material thickness such that the outer mouth flange is self stabilized in its folded down position.
Claim 4
Dependent Claim
27 words
A packing according to claim 1, in which the outer mouth flange or at least the upper part hereof is axially split at one or more places.
Claim 5
Dependent Claim
27 words
A packing according to claim 1, in which the depending lid edge flange is provided with an annular groove, which is open either downwardly or preferably upwardly.
Claim 6
Dependent Claim
60 words
A packing according to claim 1, in which the outside of the outer mouth flange is provided with a number of thinwalled fin portions extending generally radially and axially across the folding area of the said flange so as to be breakable or visually deformable by the downfolding of the upper part of the outer mouth flange of the container.
Claim 7
Dependent Claim
51 words
A packing according to claim 1, in which the lid is provided with one or more radially outwardly projecting, thin flange portions, which engage the top side of the outer mouth flange and is or are secured thereto by welding or otherwise so as to form an easily breakable guarantee seal.
References Cited (Backward Citations)
US4171062A
Cited
US4335827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-03 | 1988-12-03 | 1989-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-03 | 1992-12-03 | 1993-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-03 | 1996-12-03 | 1997-06-04 | $7700.00 | Window Closed / Lapsed |