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:
Aug. 29, 1978
Filed:
Feb. 07, 1977
Applicant:
Inventors:
Roger Marriott, Rockford, IL (US);
Mark R Estabrook, Rockford, IL (US);
Assignee:
Barnes Drill Co., Rockford, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; B03C / ; B03C / ;
U.S. Cl.
CPC ...
210223 ; 2102 / ; 210259 ; 210297 ;
Abstract
The liquid which is delivered to cyclonic separators for final cleaning is precleaned twice, first in a drag tank and then by a magnetic separator. The dirty underflow from the cyclonic separators is subjected to two stages of aftercleaning, first in a second drag tank and then by a fabric filter.