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. 22, 1996
Filed:
Apr. 19, 1994
Christian Ladirat, Saint Laurent des Arbres, FR;
Henri Pilliol, Avignon, FR;
Jean-Pierre Gnilka, Bagnols sur Ceze, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Compagnie Generale des Matieres Nucleaires, Velizy-Villacoublay, FR;
Abstract
Device for the extraction by pouring at a regulatable flow rate a molten material in a cold structure melter. The melter has at least one part of a floor around a pouring orifice cooled by a flow of water and a heat source able to melt the material to be melted. An orifice is provided in the floor of the melter, whose diameter D is equal to or larger than the thickness H of the wall forming the melter. A metal sleeve is provided, whose base has a shoulder which can be adapted to the side walls of the orifice. The sleeve has a central passage forming the pouring tube for the molten material and a clearence is provided between the side walls of the orifice and the base of the sleeve in order to receive an insulating material between the sleeve and the cold floor of the melter. A device is provided beneath the floor of the melter having a cooled, sliding blade, equipped with an actuator controlling its movement in translation along the orifice, thus determining its more or less large opening or closing state.