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.)
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Sony Corp
Original Assignee
Sony Corp
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Filing date
Publication date
Application filed by Sony CorpfiledCriticalSony Corp
Priority to JP977377ApriorityCriticalpatent/JPS5396520A/en
Publication of JPS5396520ApublicationCriticalpatent/JPS5396520A/en
PURPOSE: To enhance reliability as a safety valve to a liquid enclosing vessel by means of sealing between a magnet available for piston movement in response to volumetric variation of internal fluid and the vessel in use of magnetic fluid.