Nuclear reactor overflow line
Patent 3994777 Issued on November 30, 1976. Estimated Expiration Date: 
November 30, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 30, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References3215606 InventorApplicationNo. 657520 filed on 02/12/1976US Classes:376/277REACTOR PROTECTION OR DAMAGE PREVENTIONExaminersPrimary: Engle, Samuel W.Assistant: Palo, Ralph Attorney, Agent or FirmAbstractThe overflow line for the reactor vessel of a liquid-metal-cooled nuclear reactor includes means for establishing and maintaining a continuous bleed flow of coolant amounting to 5 to 10% of the total coolant flow through the overflow line to prevent thermal shock to the overflow line when the reactor is restarted following a trip. Preferably a tube is disposed concentrically just inside the overflow line extending from a point just inside the reactor vessel to an overflow tank and a suction line is provided opening into the body of liquid metal in the reactor vessel and into the annulus between the overflow line and the inner tube.Other References
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