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:
Oct. 23, 2018
Filed:
Aug. 31, 2015
Valmet Ab, Sundsvall, SE;
Jan Detlefsen, Alnö, SE;
Valmet AB, , SE;
Abstract
A plug screw feeder () comprises a plug screw () with a thread () and a plug screw housing () surrounding the plug screw. The plug screw housing comprises an inlet opening () in a side of the plug screw and in a vicinity of a first axial end () of the plug screw. The plug screw is arranged for feeding lignocellulosic biomass material () from the inlet opening to a second axial end () of the plug screw when being rotated. The thread, in at least a part of an inlet section () of the plug screw, presents a jagged peripheral rim (A) with an inwards directed leading edge. The inlet section is defined as the section of the plug screw passing the inlet opening during rotation. A feeding arrangement and system for treatment of lignocellulosic biomass material comprising such a plug screw feeder is also disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile