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:
Nov. 02, 1976
Filed:
Apr. 24, 1975
Applicant:
Inventors:
Assignee:
Commissariat a l'Energie Atomique, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
E05C / ;
U.S. Cl.
CPC ...
29225665 ; 292144 ; 5222 / ;
Abstract
Closure elements uniformly spaced at the periphery of a concrete plug are each applied at one end against the top face of the plug and at the other end against the corbel of a prestressed concrete pressure vessel. Each closure element is constituted by a hydraulic jack whose closed extremity is coupled to a first articulated bearing shoe. Adjustable mechanical means within the jack body maintain this latter in contact with an annular shoulder of the jack piston in all relative positions, the emergent extremity of the piston being coupled to a second articulated bearing shoe.