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. 11, 2025
Filed:
Nov. 14, 2022
Applicant:
Kadant Inc., Westford, MA (US);
Inventors:
Michael Draper, Wigan, GB;
Ka Lun To, Bury, GB;
Assignee:
Kadant Inc., Westford, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21G 3/00 (2006.01); B32B 5/02 (2006.01); B32B 7/12 (2006.01); B32B 23/10 (2006.01); B32B 37/12 (2006.01);
U.S. Cl.
CPC ...
D21G 3/005 (2013.01); B32B 5/022 (2013.01); B32B 7/12 (2013.01); B32B 23/10 (2013.01); B32B 37/1284 (2013.01); B32B 2250/04 (2013.01); B32B 2250/05 (2013.01); B32B 2250/42 (2013.01); B32B 2262/062 (2013.01); B32B 2305/28 (2013.01); B32B 2307/7163 (2013.01); B32B 2307/732 (2013.01);
Abstract
A doctor blade for contacting a roll surface in a papermaking machine is provided that includes a plurality of reinforcement fabric layers bonded together with a renewable, sustainable, eco-friendly, bio-derived resin matrix, thereby forming a multi-layer composite having a beveled edge contacting a roll surface. Each reinforcement fabric layer comprises renewable, sustainable, eco-friendly, natural reinforcement fibres, and the bio-derived resin matrix is a polymeric resin matrix produced from renewable natural resources.