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. 13, 1983
Filed:
Dec. 14, 1981
Applicant:
Inventors:
David W Coate, Pittsburgh, PA (US);
Joseph G Selmeczi, Pittsburgh, PA (US);
Assignee:
Dravo Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210808 ; 210350 ;
Abstract
A process for the dewatering of fine granular material is disclosed. During compression of the material, fluid is expressed and a small percentage of the material is intentionally permitted to escape through a self-cleaning opening in the apparatus. By maintaining the smallest dimension of the opening in the range of one to five times the diameter of the largest particle in the material, the opening remain essentially clear of any material which could cause plugging.