(19)
(11) EP 0 186 277 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.04.1988 Bulletin 1988/14

(43) Date of publication A2:
02.07.1986 Bulletin 1986/27

(21) Application number: 85307676

(22) Date of filing: 24.10.1985
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 24.12.1984 US 685432

(71) Applicant: OWENS-ILLINOIS, INC.
 ()

(72) Inventor:
  • Desai, Kirit Chandulal
     ()

   


(54) Plastic closure with premolded deflection


(57) The premoldmg of predetermined deflection in the top wall of plastic closures for pressure or vacuum applications is described. The premolded deflection is to compensate for pressure forces. or atmospheric pressure in the case of vacuum. within the sealed container so that the closure, after sealing. will be essentially flat in appearance and better able to maintain a pressure seal from both a short term as well as long term sealing application to a jar or bottle.






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