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:
May. 05, 1992
Filed:
Nov. 15, 1990
Gerard Chevereau, Le Raincy, FR;
Framatome, Paris, FR;
Abstract
A device for wedging and positioning the upper support plate of the guides of control clusters in relation to a bearing surface linked to the vessel of a pressurized-water nuclear reactor, comprising an upper ring (22) and a lower ring (23) laid onto the cluster guide support plate (8) and the bearing surface (9), respectively, and between which is seated a stack of preloaded elastic washers (24). The device comprises a hollow connecting shank (26) with an axial channel (44) and passing through the two rings, to engage in a bore (20, 21) formed in the support plate or the bearing surface, the lower ring (23) being connectable to the shank, while the upper ring is mounted slidably relative to the lower ring (23) under the effect of the load exerted on the elastic washers.