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:
Jul. 11, 2000
Filed:
Aug. 07, 1997
Stephen H Greenleigh, Rockville, MD (US);
James W Chester, Trucksville, PA (US);
Peter L Rozelle, Forty Fort, PA (US);
Matthew D Dewees, Dallas, PA (US);
Other;
Abstract
A method for removing metal contaminate from substrate includes four subsystems for removing larger uncontaminated particles by sizing classifying and washing procedures, microfiltration and ion-exchange processing of the overflow stream of water and water-borne contaminants, polishing of the microfiltrate through a bottom-fed clear-well extraction vessel for subsequent return as uncontaminated water and metallurgical furnace processing of the ion-exchange, clear-well extraction vessel polishing and optionally to selectively recover individual metal species from the contaminated flow.