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:
Oct. 04, 1988
Filed:
Jun. 30, 1986
Michel F Dubourg, Le Mesnil St Denis, FR;
Framatome & CIE., Courbevoie, FR;
Abstract
The reactor comprises a vessel closed by a lid and containing a core formed of fuel assemblies. The reactor comprises control clusters of two different types and an internal structure fixed inside the vessel, placed above the core and comprising means for guiding the clusters. The mechanisms associated with clusters of a first type each comprise a vertical cylinder belonging to the internal structure of the reactor, defining, with a piston from which is suspended a group of rods belonging to a cluster or forming a cluster, a work chamber. That chamber is connected by a duct, passing through the lid, to a valve for optional connection with a space at a pressure lower than that which prevails in the vessel.