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Priority to ES116501UpriorityCriticalpatent/ES116501Y/en
Publication of ES116501UpublicationCriticalpatent/ES116501U/en
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Publication of ES116501YpublicationCriticalpatent/ES116501Y/en
A spraying pump consisting essentially of a cylinder inside which the manually operated compressor piston slides whose cylinder is surrounded by an external tube, leaving an air accumulation chamber between them provided with a spray nozzle and attached to the reservoir containing the liquid while at the internal end of the cylinder there is a check valve formed by a diametrical hole closed by an elastic sleeve that covers the end of the cylinder and that deforms when an overpressure is created in the cylinder caused by the advancement of the piston. (Machine-translation by Google Translate, not legally binding)