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. 04, 1987
Filed:
Nov. 20, 1984
John M Shallenberger, Fox Chapel Boro, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A reconstitutable fuel assembly includes an improved attaching structure which has a plurality of coupling sleeves interfitting the upper hold-down plate, lower adapter plate and a plurality of hold-down springs of the top nozzle of the assembly. The coupling sleeves insert over a plurality of extensions extending upwardly from the main bodies of the guide thimbles. The sleeves rest on annular ledges formed on the bottom portions of the respective extensions. A removable cap is attached to the top portion of each of the thimbles extensions and applied to the upper portion of each of the coupling sleeves to releasably lock the coupling sleeves on the guide thimble extensions. In view that the coupling sleeves are fixed to the adapter plate at their lower portions, the sleeves and hold-down plate, adapter plate and hold-down springs disposed between the plates and encircling individual sleeves can be removed together from the fuel assembly as a unitary subassembly upon removal of the removable caps.