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Individual
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Individual
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Priority to ES0249299ApriorityCriticalpatent/ES249299A3/en
Publication of ES249299A3publicationCriticalpatent/ES249299A3/en
On-Site Construction Work That Accompanies The Preparation And Application Of Concrete
(AREA)
Air Transport Of Granular Materials
(AREA)
Nozzles
(AREA)
Abstract
Improvements in the dredging machines characterized by the fact of inserting a venturi device in the outlet or pressure duct of an air impeller whose venturi has the outlet connected to the projecting lance while its suction inlet is connected to the interior of a reservoir for the powder whose lower part has removable openings connected with an auxiliary air inlet provided in said pressure tube before the venturi. (Machine-translation by Google Translate, not legally binding)
ES0249299A1959-04-241959-04-24Improvements in spraying machines (Machine-translation by Google Translate, not legally binding)
ExpiredES249299A3
(en)