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. 31, 1993
Filed:
Nov. 10, 1992
Applicant:
Inventors:
Bruce Crossley, Pittsfield, MA (US);
Ronald DeFoe, Becket, MA (US);
Assignee:
Beloit Technologies, Inc., Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B03D / ;
U.S. Cl.
CPC ...
209211 ; 209144 ; 2105121 ; 96204 ;
Abstract
An improved hydrocyclone and method of operating for centrifugal cleaning of pulp for papermaking wherein the hydrocyclone has a plurality of inserts each with openings of different sizes for selectively and interchangeably inserting into a stock entry opening and into a vortex finding outlet opening to adjust capacity and cleaning efficiency. In one form the inserts each can be changed by tubes of different openings which are installed into the inserts changing the opening sizes. In another form, the inserts are threadedly engaged with bosses or are adhered or frictionally fit into the bosses.