EP0280488A2
Expired / Lapsed
EP
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Lidded containers
Assignee: Peerless Plastics Packaging Ltd
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Filing: 1988-02-22
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Granted: —
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Expires: 2008-02-22
Abstract
Abstract A lidded container (1) is provided which is intended to deter unauthorised removal of the lid (2). The container has an out-turned lip (3) of inverted U-section having a circumferential horizontal flange (8) supporting an upright retention portion (10) with a retaining bead (12). The lid (2) has a rim portion (14) which is also of inverted U-section, the web (15) of the U having a formation (20) engaging a complementary formation (21) on the lip (3) of the container to provide location and sealing connection between the lid and container, and the outer limb (17) being outwardly cranked and forming a depending skirt (18) having a retaining formation (19) which interlocks with the retaining formation (12). Part of the flange (8) is extended to form a tab (22) which is removable at a line of weakening (23) to facilitate separation of the lid (2) and container (1). Removal of the tab (22) indicates that the container has been opened or at least that it has been tampered with.
Inventors
- 👤 Karl Longbottom
- 👤 Norman Whiteley
- 👤 Paul James Howard Bagnall
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 16:18
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0206; B65D2401/00; B65D2401/10; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00101; B65D2543/0012; B65D2543/00175; B65D2543/00194; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00453; B65D2543/00472; B65D2543/00481; B65D2543/0049; B65D2543/00509; B65D2543/00537; B65D2543/00546; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00629; B65D2543/00648; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/00731; B65D2543/0074; B65D2543/00787; B65D2543/00796; B65D2543/00824; B65D2543/00944; B65D2543/00953; B65D2543/0099
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
77 words
A lidded container (1), the lid (2) of which has a skirt (18) which surrounds a rim (3) of the container, characterised in that the container has a circumferential flange (8) which extends underneath the skirt and has an upstanding retention portion (10) which surrounds at least a lower portion of the skirt (18), the skirt and the retention portion (10) having mechanically interlocking formations (12, 19) which retain the lid (2) positively on the container (1).
Claim 2
Dependent Claim
77 words
A lidded container (1), the lid (2) of which has a skirt (18) which surrounds a rim (3) of the container, characterised in that the container has a circumferential flange (8) which extends underneath the skirt and has an upstanding retention portion (10) which surrounds at least a lower portion of the skirt (18), the skirt and the retention portion (10) having mechanically interlocking formations (12, 19) which retain the lid (2) positively on the container (1).
Claim 3
Dependent Claim
25 words
A lidded container according to claim 1 characterised in that the retention portion (10) and the interlocking formations (12, 19) extend continuously around the container.
Claim 4
Dependent Claim
39 words
A lidded container according to claim 1 or claim 2 characterised in that the flange (8) has a manipulatory portion adapted to be manipulated relative to the skirt (18) to release the mechanical interlock between the formations (12, 19).
Claim 5
Dependent Claim
49 words
A lidded container according to claim 1 characterised in that the flange (8) has a line of weakening formed in it at which a part of the retention portion (10) is separable from the remainder of the flange (8) to release the mechanical interlock between the formations (12, 19).
Claim 6
Dependent Claim
41 words
A lidded container according to claim 4 characterised in that the line of weakening is defined by a slot (23) in and extending across said flange (8) and a groove (23ʹ) in the retention portion (10) extending from the slot (23).
Claim 7
Dependent Claim
106 words
A lidded container according to claim 4 characterised in that a portion of the flange (8) is extended outwards from the container (1) to form a tab (22) around which the retention portion (10) extends and the lid (2) has an associated portion which is correspondingly increased such that the lid forms a complementary tab (24) around which the skirt (18) extends and wherein said line of weakening is formed at the tab-forming portion of the flange (8) such that said portion can be removed, thereby leaving the associated tab-forming portion (24) of the lid accessible for assisting subsequent separation of the lid from the container.
Claim 8
Dependent Claim
42 words
A lidded container according to claim 1 characterised in that the rim (14) is of an inverted generally U-section having an outer depending limb (17) which has an outwardly and downwardly inclined lower portion (27) from which the circumferential skirt (18) depends.
Claim 9
Dependent Claim
28 words
A lidded container according to claim 1 characterised in that the mechanically interlocking formations of the skirt (8) and the retention portions are interengaging male projections (12, 19).
Claim 10
Dependent Claim
79 words
A lidded container according to claim 1 characterised in that the mechanically interlocking formations comprise a step (26) in the skirt (18) and a male projection (12) on the retention portion (10), the step (26) engaging under the male projection (12) and the skirt (18) being inwardly and downwardly inclined below the step such that a lower end of the skirt is disposed inwardly of the male projection and is able to pass the male projection without interference therewith.
Claim 11
Dependent Claim
75 words
A lidded container according to claim 7 characterised in that the U-shaped section of the rim (14) of the container has a web portion (4) and the lid has an adjacent portion (15) and complementary male and female locating formations (20, 21) are provided at the web portion (4) and the adjacent portion which assist in locating the lid (2) on the rim (14) and provide a sealing engagement between the lid and the rim.
References Cited (Backward Citations)
No citation records indexed.
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