Unitary structure of tag gas capsule and end cap of nuclear fuel cladding tube
Patent 4659544 Issued on April 21, 1987. Estimated Expiration Date: 
June 12, 2004. 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.
June 12, 2004. 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 References3647622 InventorsAssigneeApplicationNo. 06/620041 filed on 06/12/1984US Classes:376/451, Having particular end closure or seal (e.g., weld, plug, cap, etc.)376/251, Fuel element leak detection376/253, By the detection of fission products external to the fuel element376/450With condition sensing or indicating meansExaminersPrimary: Walsh, Donald P.Attorney, Agent or FirmInternational ClassesG09F 3/00 (20060101)G21C 3/10 (20060101) G21C 3/17 (20060101) G21C 3/02 (20060101) Foreign Application Priority Data1983-06-30 JPAbstractAn end cap with a tag gas capsule adapted to close an end of a cladding tube of a nuclear fuel element and to introduce a tag gas into the fuel element. The end cap is fixed to the tag gas capsule to form a unitary structure. The end cap has a specific shape or description on its outer surface corresponding to information concerning the specific tag gas and the capsule, so that the description or shape of the end cap can identify the specific capsule and the tag gas contained in the capsule. | |
