(19)
(11) EP 0 308 995 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.04.1989 Bulletin 1989/14

(43) Date of publication A2:
29.03.1989 Bulletin 1989/13

(21) Application number: 88116832.2

(22) Date of filing: 17.01.1985
(51) International Patent Classification (IPC)4: B65D 41/34
(84) Designated Contracting States:
DE FR GB IT NL SE

(30) Priority: 18.01.1984 JP 5756/84
06.07.1984 JP 138904/84
26.10.1984 JP 224126/84

(62) Application number of the earlier application in accordance with Art. 76 EPC:
85100467.1 / 0149496

(71) Applicant: JAPAN CROWN CORK CO. LTD.
Chiyoda-ku Tokyo (JP)

(72) Inventors:
  • Mori, Fumio
    Yokohama-shi Kanagawa-ken (JP)
  • Itsubo, Junichi
    Hiratsuka-shi Kanagawa-ken (JP)
  • Yazaki, Takashi
    Hiratsuka-shi Kanagawa-ken (JP)
  • Ichinose, Isao
    Hiratsuka-shi Kanagawa-ken (JP)
  • Tanaka, Katsuake
    Hiratsuka-shi Kanagawa-ken (JP)
  • Ishii, Osamu
    Chigasaki-shi Kanagawa-ken (JP)

(74) Representative: Beetz & Partner Patentanwälte 
Steinsdorfstrasse 10
80538 München
80538 München (DE)


(56) References cited: : 
   
       


    (54) Pilfer-proof plastic closure for containers


    (57) A pilfer-proof plastic closure comprising a top panel wall (4) and a cylindrical skirt wall (6) ex­tending downwardly from the peripheral edge of the top panel wall (4).
    An axial breaking line (48) is formed in the pilfer-proof bottom portion (14) which extends down­wardly from the upper end of the pilfer-proof bottom portion but is non-existent in at least a greater portion of the lower part of the pilfer-proof bottom portion. At least a greater portion of the base edge (28) of each of the engaging flaps is positioned in the aforesaid lower part where the axial breaking line (48) does not exist.







    Search report