Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Oerlikon AG
Original Assignee
Maschinenfabrik Oerlikon AG
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Filing date
Publication date
Application filed by Maschinenfabrik Oerlikon AGfiledCriticalMaschinenfabrik Oerlikon AG
Priority to ES208076ApriorityCriticalpatent/ES208076A1/en
Publication of ES208076A1publicationCriticalpatent/ES208076A1/en
A safety device for oil-filled transformers with an oil expansion vessel connected by a connection pipe to the transformer tank, characterized in that to prevent the oil from leaving the expansion vessel in the event of an accident, it is incorporated in the unión pipe a check valve whose valve seat is disposed in a narrowing of the section of the connecting tube and has a conical sealing surface while the sealing part of the check valve has a bulging sealing surface and is provided with a float which in normal service keeps the check valve open but exceeds a certain step speed in advance allows the automatic closing of the check valve. (Machine-translation by Google Translate, not legally binding)
ES208076A1953-03-031953-03-03A safety device for transformers filled with oil (Machine-translation by Google Translate, not legally binding)
ExpiredES208076A1
(en)
A valvular safety device device for containers containing a combustible liquid, especially gasificable (Machine-translation by Google Translate, not legally binding)
Automatic safety and economy valve for tanks or tanks for gasoline, petroleum, alcohol or similar materials. (Machine-translation by Google Translate, not legally binding)