A push-button applicable to the stem (3) of a pump (4) for delivering liquids or creams under pressure. The push-button includes 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...http://www.google.es/patents/US6161732?utm_source=gb-gplus-sharePatente US6161732 - Push-button comprising a movable nozzle for dispensing pressurized fluids
Push-button comprising a movable nozzle for dispensing pressurized fluids