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. 15, 1978
Filed:
Jul. 30, 1976
Joseph Recasens, Sorgues, FR;
Andre Penez, Courthezon, FR;
Societe Europeenne des Produits Refractaires, Neuilly-sur-Seine, FR;
Abstract
The invention relates to beads used for crushing or dispersion which are formed by fusion, conversion into beads and solidification of an appropriate batch consisting essentially, on the oxide basis, of up to 85% by weight of ZrO.sub.2, a proportion of SiO.sub.2 such that the weight ratio ZrO.sub.2 /SiO.sub.2 is greater than or equal to 1.5, an optional proportion of Al.sub.2 O.sub.3 such that the weight ratio Al.sub.2 O.sub.3 /SiO.sub.2 is 0 to 1.5 and an optional proportion of Na.sub.2 O such that the weight ratio Na.sub.2 O/SiO.sub.2 is from 0 to 0.04, the batch also containing at least one of the additional oxides of MgO and CaO in proportions such that the weight ratio MgO/SiO.sub.2 is from 0.03 to 1 and the ratio CaO/SiO.sub.2 is from 0.03 to 1.45.