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:
Nov. 10, 1992
Filed:
Apr. 19, 1991
Applicant:
Inventor:
Robert J Seider, Ransomville, NY (US);
Assignee:
Washington Mills Electro Minerals Corp., Niagra Falls, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03C / ;
U.S. Cl.
CPC ...
2091274 ; 209129 ;
Abstract
A method of electrically separating differing shapes of abrasive grain materials by imposing a high voltage corona induction charge to free-falling abrasive particles, polarization thereof and attraction thereof to a high voltage oppositely charged electrical field is disclosed, along with apparatus by which the method is practiced and the characteristics of shape of the particles of abrasive grain materials so separated.