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Priority to ES1969151589UpriorityCriticalpatent/ES151589Y/en
Publication of ES151589UpublicationCriticalpatent/ES151589U/en
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Publication of ES151589YpublicationCriticalpatent/ES151589Y/en
Portable transfer pump, applicable especially to toxic liquids; characterized in that the rod of the piston comprising comprises a conduit passing axially through the piston and its opposite end exits to the outside of the cylindrical pump body where it has actuating arms; so that the displacement of the piston, after selective manual sealing of the conduit constituting its rod, establishes the extraction of the liquid, which exits through said rod, while it is last with the cylinder establishes a free-passage conduit. (Machine-translation by Google Translate, not legally binding)
ES1969151589U1969-09-051969-09-05
PORTABLE TRANSFER PUMP.
ExpiredES151589Y
(en)
Improvements in the piston pumps, particularly adapted for automatic discharge, in elevation of the concrete from the concrete. (Machine-translation by Google Translate, not legally binding)