| 摘要 |
1503121 Discharge closures LE BOUCHAGE MECANIQUE 8 Jan 1976 [16 Jan 1975] 00691/76 Heading B8T A pouring closure comprises a stoppering device 1 having a preferably frusto-conical, spout 10 and a closure cap 2 joined by a connecting tab 3, the whole closure preferably being a one-piece moulding of polypropylene. Resilient means comprising a tongue 16 and blade 17 are secured to the stoppering device 1 and closure cap 2 respectively, the tongue and blade being resiliently deformable so as to assist movement of the cap from a partially open position (Fig. 3) to a fully open position (Fig. 4) with respect to the stoppering device and prevent free return of the cap to a partially open position. |
