(19)
(11) EP 1 403 841 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.12.2004 Bulletin 2004/52

(43) Date of publication A2:
31.03.2004 Bulletin 2004/14

(21) Application number: 03078034.0

(22) Date of filing: 25.09.2003
(51) International Patent Classification (IPC)7: G09F 3/03
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 26.09.2002 AR 0203643

(71) Applicants:
  • Robinson, Robert
    Munro, Provincia de Bs. As. (AR)
  • Gonzalez Herrera, Silvia Mercedes
    Munro, Provincia de Bs. As. (AR)

(72) Inventors:
  • Robinson, Robert
    Munro, Provincia de Bs. As. (AR)
  • Gonzalez Herrera, Silvia Mercedes
    Munro, Provincia de Bs. As. (AR)

(74) Representative: Davila Baz, Angel et al
c/o Clarke, Modet & Co., Goya, 11
28001 Madrid
28001 Madrid (ES)

   


(54) Twist-type security seal


(57) A security seal of the twist- type comprises a housing (11 ) that contains a revolving stem (13) having two axially opposed holes (17) positioned in line with guiding holes (19) which extend across the housing wall to receive a locking wire which is wound by turning the revolving stem with a handle (15) solidly fixed to it in a pre-determined direction. The revolving stem has two disc-shaped sections with separate anti-rotational devices: a first disc-shaped section (31 ) comprises six helical teeth (35) and a second disc-shaped section (33) comprises saw-teeth (39), all of them engaging with matching shoulders formed on the respectively matching surfaces of the inner wall of the housing to prevent rotation of the stem in the unwinding direction. An anti-removal device comprises a metal retainer ring (21) formed on the stem and extending beyond an inner rim (27) of the housing when the stem is introduced into the body, the side wall of the housing having a weakened section (29) intended to break if someone tries to remove the stem. The housing is see-through and looking through its bottom wall (51 ) it is possible to see the three last digits (53) of the univocal serial number (47) of the security seal, stamped on the tab (45) fixed to the housing.






Search report