EP 0039598 A1 19811111 - Interlocking container or cup.
Title (en)
Interlocking container or cup.
Title (de)
Ineinander greifende Behälter oder Becher.
Title (fr)
Récipient ou gobelet emboîté.
Publication
Application
Priority
CA 351152 A 19800502
Abstract (en)
The invention concerns thermoplastics material cups which nest to seal a chamber in the bottom of the lower cup. A thermoplastics material cup (12) for nesting in a like cup has an endless groove (28) on its interior wall spaced from the bottom (16) to interlock with a lug (36) adjacent the bottom (16) of a similar cup. The groove (28) and lug (36) have similarly sloped entry ramps (30, 38) leading to preferably vertical sealing surfaces (32, 40) and the lug (36) is about 10% larger than the groove (28) the dimensions being such that interengagement of the entry ramps (30, 38) causes longtitudinal compression of the lug (36) and consequential radial expansion giving intimate sealing between the sealing surfaces (32, 40) to seal the space (60) in the bottom of the lower cup, so as to keep fresh a comestible located therein.
IPC 1-7
IPC 8 full level
B65D 1/26 (2006.01); B65D 81/00 (2006.01); B65D 81/34 (2006.01); B65D 85/816 (2006.01)
CPC (source: EP)
B65D 1/265 (2013.01); B65D 85/816 (2013.01)
Citation (search report)
- GB 798908 A 19580730 - CROWN MACHINE & TOOL COMPANY
- US 4096947 A 19780627 - MORSE MILTON
- US 4156483 A 19790529 - DAY ROBERT H [GB]
- DE 2624301 A1 19771215 - KRONER KLAUS, et al
- US 3512677 A 19700519 - KOVAC MICHAEL
- GB 1554241 A 19791017 - MONO CONTAINERS LTD
- US 2971304 A 19610214 - O'NEIL JOHN G
- US 2667422 A 19540126 - KAUFFMAN JOHN H
- US 3526316 A 19700901 - KALOGRIS THEODORE P
- DE 2639929 A1 19780309 - ROTHKEGEL MANFRED
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0039598 A1 19811111; EP 0039598 B1 19840808; AT E8863 T1 19840815; DE 3165356 D1 19840913; DK 196881 A 19811103; IE 52414 B1 19871028; IE 810983 L 19811102
DOCDB simple family (application)
EP 81301946 A 19810501; AT 81301946 T 19810501; DE 3165356 T 19810501; DK 196881 A 19810504; IE 98381 A 19810504