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. 23, 2014
Filed:
Feb. 27, 2012
Applicant:
Brian F. Greenwood, Cumming, GA (US);
Inventor:
Brian F. Greenwood, Cumming, GA (US);
Assignee:
Andritz, Inc., Glens Falls, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 3/26 (2006.01); D21C 1/02 (2006.01); D21B 1/02 (2006.01); D21C 3/02 (2006.01);
U.S. Cl.
CPC ...
D21C 1/02 (2013.01); D21B 1/021 (2013.01); D21C 3/02 (2013.01);
Abstract
A prehydrolysis of wood chips or other lignocellulosic material in a vessel having a gaseous portion and a liquid portion. The vessel includes at least one stress relieving piece that inhibits overcompression of the lignocellulosic material. The vessel operates in a continuous process. A slurry of lignocellulosic material and liquid is removed from the bottom of the vessel.