Dispensing closure

Abstract

This invention relates to a closure which serves hermetically to close -- though being easily reopened -- a bottle or similar container, which possesses a neck having a dispensing orifice, a neck frontal face surrounding said orifice and an orifice bead located below the latter and having a constriction on its underside, and which closure comprises a cap serving as the head of the closure, with an upper cap wall ( or roof wall of the cap ) and a cap side wall circumferential about the latter and possessing slot means, extending from its lower rim and transversely to the latter, to permit it to splay ( or spread ) on being mounted on the mouth of the bottle, and with an inner annular bead, projecting inwards from the inner face of the cap side wall and intended, in the closing position, to engage with the underside of the orifice bead of the bottle, a sealing element, provided on the inner face of the upper cap wall and serving, in the closing position, to seal the dispensing orifice of the bottle, a lifting element which may be actuated by the finger and is located on the actuating side of the cap, and a fixing device which, in the closing position, annularly bridges each slot present in the cap side wall, by sealingly pressing the inner annular bead of the cap side wall against the constricted underside of the orifice bead of the bottle, and which is linked to the cap side wall in at least one region, remote from the actuating side of the cap side wall; the fixing device comprises at least one tensioning member which, in the closing position, is tensioned by being stretched tangentially to the cap side wall and as a result effects a compression of each slot present in the side wall and provides a uniform pressure, from all sides, of the inner annular bead of the cap against the underside of the bottle neck.