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. 23, 1990
Filed:
Aug. 08, 1989
Applicant:
Inventor:
Michael I Sherman, Glens Falls, NY (US);
Assignee:
Kamyr, Inc., Glens Falls, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
266168 ; 266101 ; 266170 ; 4236585 ;
Abstract
A leaching vessel comprises a central outlet in which is situated a multi-bladed pump for pumping slurry from the vessel. An inclined wall adjacent the bottom wall of the vessel surrounds the outlet and has a plurality of apertures. The inclined wall defines with the bottom wall of the vessel a chamber into which cyanide solution is pumped for passage through the apertures into the slurry. The chamber may be sub-divided into radially or circumferentially spaced chambers, or both, with each chamber having a discrete inlet and flow control valve.