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:
Jun. 11, 1991
Filed:
Dec. 18, 1989
Applicant:
Inventors:
Assignee:
The Graver Company, Union, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F / ; C02F / ; B01D / ;
U.S. Cl.
CPC ...
210670 ; 210505 ; 210679 ; 210686 ; 210692 ; 210694 ; 210777 ;
Abstract
Methods for treating aqueous solutions and for recovering specific chemical products from an aqueous solution by ion exchange or adsorption by passing the aqueous solution through a regenerable filter bed comprising a flocculated mixture of finely divided active particulate material and filter aid materials having a depth of from about 3.0 inches to about 60 inches.