REMOVABLE CLOSURE DEVICE

WIPO Patent Application WO2002038462

A3

A membrane lid (10) with a surface (12) with a substantially triangular-shaped perimeter (14). The perimeter includes first, second and third corner portions (20a,20b,20c), wherein each corner portion is bisected by an imaginary line (18a,18b,18c). The membrane lid (10) further includes a projection (24) with a tab (26) and adapted to initially direct a lifting force to at least one of the corner portions (20a,20b,20c). The projection (24) either extends outwardly from the perimeter (14) such that the projection (24) is non-symmetrically disposed with respect to the imaginary line (18a,18b,18c) of any adjacent corner portion (20a,20b,20c), or the projection (24) extends non-continuously from an adjacent corner portion (20a,20b,20c) and is substantially symmetrically disposed with respect to said imaginary line. Containers (50) are also provided with a lip (54) having a substantially triangular-shaped horizontal cross-section. The lip (54) includes three corner portions (56) and three sides (58),wherein the sides (58) of the lip (54) are structured differently than the corner portions (56) of the lip (54).

BOYER ANDREW MARTIN
BUISSON GERARD LAURENT
ROMANACH BENITO ALBERTO
GIBBS RIKKI DYAN

PCT/US2001/047051

September 19, 2002

November 13, 2001

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PROCTER & GAMBLE (US)

B65D1/14; B65D1/26; B65D17/34; B65D17/40; B65D41/32; B65D43/02; B65D51/20; B65D53/00; B65D77/20; B65D85/36; (IPC1-7): B65D77/20; B65D43/02

US3774800A	1973-11-27
US2321011A	1943-06-08
GB781688A	1957-08-21
EP0999143A2	2000-05-10
EP0356961A2	1990-03-07
DE2452241A1	1976-05-13

PATENT ABSTRACTS OF JAPAN vol. 2000, no. 10 17 November 2000 (2000-11-17)

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