| 摘要 |
<p>The present invention is directed to a one-piece cap (1) comprising a rigid base (10), a dispensing spout (11) defining a dispensing passage (13) through the cap rigid base (10), to which it is hingeably attached by a flexible invertible diaphragm (14), and internal and external closure walls that define respectively internal (16) and external (15) skirts, characterized in that, the internal skirt (16) extends so as to form a dosing volume. The cap (1) is further designed to fit onto the neck of an associated container (18) so that the assembly is leak-proof, and further designed so that the dispensing spout (11) comprises a cup-seal (22) to cooperate with the cap rigid base (10) so that said dispensing spout (11) is leak-proof when in the closed position. <IMAGE></p> |
