Patent ID: 11932460
Assignee: OBRIST CLOSURES SWITZERLAND GMBH
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 13:
14. A tamper-evident closure comprising a base and a lid joined together by a hinge so that the lid can move between closed position and an open position, the base comprises a cylindrical sidewall closed at one end by a top deck, at the centre of the top deck a dispensing spout is provided to define a dispensing orifice, the lid comprises a circular top plate at the periphery of which is a depending cylindrical skirt, inner and outer sealing skirts depend from the underside of the lid top plate for sealing the spout, the skirt comprises two arcuate wall sections which extend from the hinge region, the wall sections are joined by an arcuate recessed wall section which extends around the front of the closure, opposite the hinge, the wall sections continue, circumferentially, beyond the ends of the recessed wall section, forming wall extension portions that define pockets or slots, the interior of the wall extension portions are provided with an axial bead or rib, an arcuate tamper-evident strip is provided at a front of the closure, the strip is frangibly connected to the top of the periphery of the base by one or more frangible bridges, the recessed wall section of the lid is provided with two wedge-like projections, the projections include an inclined lower surface and a flat upper surface, the strip is provided with two notches which correspond with the projections, the ends of the strip fit into respective lid pockets, in which the flat upper surfaces prevent the lid from being lifted without lifting the strip, breaking the strip away from the base, and in which the strip is retained by the lid by virtue of the engagement of the strip ends in the lid pockets in combination with the engagement of the lid projections under the strip notches.