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Priority to ES0074583UpriorityCriticalpatent/ES74583Y/en
Publication of ES74583UpublicationCriticalpatent/ES74583U/en
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Publication of ES74583YpublicationCriticalpatent/ES74583Y/en
New return valve for hydraulic controls, characterized in that it consists of a piece in the form of a glass, provided with an external flange in its mouth, in whose flange there is an inlay that forms a slot receiving the spring of the valve in one of its sides, and an annular rib that is applied against the valve seat for closure, on the other side, the bottom of said vessel being provided with a plurality of through openings, and a sheet of elastic material fixed so as to cover said openings, but can be separated from them, leaving free the passage of liquid in response to the increase in pressure of said liquid. (Machine-translation by Google Translate, not legally binding)
ES0074583U1959-06-161959-06-16
Return valve for hydraulic controls
ExpiredES74583Y
(en)
Cover for the closing of circular plant domes particularly for deposits of autorecipients (Machine-translation by Google Translate, not legally binding)
Pressure vessel with whistling cap, safety valve and automatic regulation and indistinct heating (Machine-translation by Google Translate, not legally binding)