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. 18, 2007
Filed:
Apr. 14, 2004
Keith P. Vogel, Queensbury, NY (US);
John F. Bolles, Queensbury, NY (US);
Patrick J. Sullivan, Argyle, NY (US);
C. Bertil Stromberg, Bolton Landing, NY (US);
Keith P. Vogel, Queensbury, NY (US);
John F. Bolles, Queensbury, NY (US);
Patrick J. Sullivan, Argyle, NY (US);
C. Bertil Stromberg, Bolton Landing, NY (US);
Andritz Inc., Glens Falls, NY (US);
Abstract
A continuous digester for producing chemical cellulose pulp from cellulose chips including: a digester vessel with an upper section attached to a top separator and said vessel at least partially filled with the cellulose chips and a liquor; a top separator at least partially in said upper section having a lower chip inlet port, a chip conveyor, a screen adjacent the conveyor, an upper chip discharge chute, and a liquor outlet facing a side of the screen opposite to the conveyor, and a chip inlet conduit extending into the vessel and having a first operational mode in fluid communication with the chip inlet port and a second operational mode in which the chip inlet conduit discharges directly into the vessel.