(19)
(11) EP 0 729 894 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.02.1997 Bulletin 1997/07

(43) Date of publication A2:
04.09.1996 Bulletin 1996/36

(21) Application number: 96301179.6

(22) Date of filing: 22.02.1996
(51) International Patent Classification (IPC)6: B65D 41/34
(84) Designated Contracting States:
BE DE FR GB IT NL

(30) Priority: 03.03.1995 GB 9504262

(71) Applicant: MASSMOULD HOLDINGS LIMITED
Flitwick, Bedfordshire, MK45 5BZ (GB)

(72) Inventor:
  • McNaughton, Chris
    Flitwick, Bedfordshire MK45 5BZ (GB)

(74) Representative: Watkins, David et al
Urquhart-Dykes & Lord, 91 Wimpole Street
London W1M 8AH
London W1M 8AH (GB)

   


(54) Closure device


(57) A closure 10 comprises a cap 11 having a skirt 13 depending therefrom. Skirt 13 has an internal screw thread 14 or equivalent for engagement with a complementary formation on a container (not shown). Closure 10 further comprises a tamper-evident ring 30 attached to skirt 13 by frangible bridges 20. At least a portion of tamper-evident ring 30 has shelf means 32 characterised by an acute-angled vertical cross-section for engagement behind a projection on the neck of a container during removal of closure 10. This ensures effective separation of tamper-evident ring 30 from closure 10, with retention of tamper-evident ring on the container neck. Preferably, bridges 20 extend in a non-axial direction from the lower rim 16 of skirt 13 to the radially innermost extremity of tamper-evident ring 30. Bridges 20 may be narrower in section adjacent skirt 13. Optionally, skirt 13 and tamper-evident ring 30 have complementary formations (46, 36; See Figure 4) which interengage when closure 10 is screwed onto a container.






Search report