The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 1977
Filed:
Sep. 05, 1974
Werner Kraupa, Erlangen, DT;
Siemens Aktiengesellschaft, Munich, DT;
Abstract
A nuclear pressurized-water reactor installation includes a reactor pressure vessel, a concrete biological shield surrounding the vessel and a cylindrical pressurized coolant pipe extending from the vessel. The wall forms a hole of substantially larger diameter than the diameter of the coolant pipe and through which this pipe is extended with a cylindrical space therearound, and the wall forms at least one air space between the vessel and the wall and which is spanned by the pipe. If the pipe within the hole fails, its pressurized-water coolant which then escapes can flow through the cylindrical space into the air space and down and under the vessel to exert an upward force on the vessel. To prevent this, a cylindrical containment encircles the pipe in the hole and extends to the vessel with which the containment fluid-tightly seals, thus preventing coolant escaping from the pipe from having access to the air space around and beneath the bottom of the pressure vessel.