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:
Mar. 14, 2000
Filed:
Jan. 30, 1998
Applicant:
Inventor:
David B Grimes, Greenfield, MA (US);
Assignee:
Beloit Technologies, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B03B / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
209725 ; 209724 ; 210748 ; 2105121 ; 210787 ;
Abstract
Fiber-containing stock is fed into a hydrocyclone with a wall structure which generates quasi-laminar flow within the hydrocyclone housing. A piezoelectric oscillator introduces ultrasonic waves into the quasi-laminar flow to achieve high volume separation of heavyweight particles from the acceptable fibers with improved differentiation.