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.:

US 8303769 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 06, 2012

Filed:

Mar. 09, 2010
Applicants:

Andreas Engelfeldt, Alnö, SE;

Bertil Ernerfeldt, Njurunda, SE;

David Lindkvist, Alnö, SE;

Inventors:

Andreas Engelfeldt, Alnö, SE;

Bertil Ernerfeldt, Njurunda, SE;

David Lindkvist, Alnö, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 9/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

Apparatus for screening cellulose pulp streams is disclosed including first and second screens contained in a housing, and a primary inlet for directing the cellulose pulp stream into the housing, an accept outlet for withdrawing an accept portion from the housing, a reject outlet for withdrawing a reject portion from the housing, a first accept chamber for receiving the accept portion which has passed through the first screen, a second screen chamber for directing the first accept portion to the second screen, and a secondary pulp inlet for receiving a second cellulose pulp feed stream comprising a screened cellulose pulp accept fraction and directing it to the second screen whereby the second accept fraction is delivered to the accept outlet. Methods and systems for screening cellulose pulp systems are also disclosed.


Find Patent Forward Citations

Engelfeldt, Andreas. (2012). Arrangement, system and method for treatment of cellulose pulp (U.S. Patent No. 8303769). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8303769

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…