| 摘要 |
1512839 Pressurized dispensing containers F D BON 1 July 1975 [1 July 1974 20 July 1974 30 Aug 1974] 27775/75 Heading F1R An actuator cap for a pressurized dispenser has a normally closed discharge outlet which is opened when the actuator is operated to open the container valve and recloses on release of the actuator. In the embodiment shown in Fig. 1, 2 the actuator button 20 is connected to the valve outlet tube and has a finger engagable portion 21a accessable through an opening in an outer cap 11. The button has a passage 25 the portion 25a leading to the outlet 22 having a resilient upper wall 24 and a rigid lower wall 23. In the inoperative position the valve spring 10 pushes the button upwardly so that the wall 24 engages the rim 17 on the cap 11 and is then engaged by the wall 23 whereby the two walls sealingly engage each other as shown in Fig. 1. In the embodiment shown in Fig. 5 (not shown) the button 30 and cap 31 are connected by means of male and female portions 33, 35 which exert a force which causes the portion 30 to engage the resilient wall portion 24 and force it into engagement with the rim 17 whereby the outlet is sealed. The button is operated by a finger in the opening 37 engaging the wall 34. In the embodiment shown in Fig. 9 (not shown) the button 41 has a spring finger 47 the nose 47c of which engages the flexible wall 41b to close it against the wall 45. The passage is opened by the pressure of the material in the passageway 43 when the valve is opened.
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