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:
Nov. 03, 2026
Filed:
Oct. 11, 2024
Valmet Ab, Sundsvall, SE;
Olof Melander, Sundsvall, SE;
Peter Björklund, Umeå, SE;
VALMET AB, Sundsvall, SE;
Abstract
A system for processing lignocellulosic materials includes: a pressurization vessel configured to perform hydrothermal treatment of the lignocellulosic materials using saturated or superheated steam; a pressure sealing screw configured to continuously discharge hydrothermally treated lignocellulosic material from the pressurization vessel to a discharge chamber; a control valve configured to add steam to the discharge chamber for pressure control; and a discharge nozzle configured to discharge the lignocellulosic material and steam from the discharge chamber with expansion of steam. The control valve is configured to add the steam to the discharge chamber so as to control a pressure in the discharge chamber to different levels at varying flow rates of the lignocellulosic material and to thereby control a ratio of an amount of steam that escapes through the discharge nozzle to an amount of the lignocellulosic material discharged through the discharge nozzle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile