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:
Aug. 22, 1978
Filed:
Feb. 07, 1977
Kai D Olshausen, Raelingen, NO;
Institutt for Atomenergi, Kjeller, NO;
Abstract
A fuel rod for nuclear reactors normally comprises an internal fuel core surrounded by an external cladding, a radial spacing being advantageously arranged between said core and cladding in order to avoid hard interaction between said parts. According to the present invention said spacing is gauged by elastically squeezing the cladding at least until contact with the internal fuel core is obtained. During the squeezing process the change of elastic behavior of the squeezed cladding at the instance of said contact formation is detected by repeatedly or continuously sensing the applied squeezing force and resulting cladding deformation, the elastic deformation at said instance being measured as an expression of the spacing to be gauged.