| 摘要 |
<p>A push-button applicable to the stem (3) of a pump (4) for delivering liquids or creams under pressure, the push-button having a cylindrical cavity into which there extends a shutter (10) the free end of which lies opposite a discharge nozzle (8) formed in an elastically flexible body (7) secured to a piston (13) movable on the shutter (10) by the effect of the pressure delivered by the pump.</p> |
