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:
Dec. 27, 1983
Filed:
Jun. 14, 1982
Applicant:
Inventors:
Walter Juda, Lexington, MA (US);
Robert J Allen, Saugus, MA (US);
Robert Lindstrom, Gloucester, MA (US);
Amiran Bar-Ilan, Newtonville, MA (US);
Assignee:
Prototech Company, Newton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C / ; C25C / ;
U.S. Cl.
CPC ...
204106 ; 2041 / ; 204109 ; 204248 ; 204275 ; 204D / ;
Abstract
This disclosure relates primarily to the recovery of hydrogen-reduced metals from aqueous solutions of salts thereof, such as, for example, copper from copper sulphate solution, by hydrogen reduction at a catalytic barrier made pervious to the solution, in an apparatus provided with means to supply hydrogen along a face of said barrier at which the aqueous solution is applied to effect deposition thereupon and flowing the solution transversely through the barrier to continue deposition upon the other face of the barrier.