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:
Mar. 15, 2005
Filed:
Mar. 28, 2002
Applicants:
Allen J. Brauns, Sturbridge, MA (US);
Stacey L. Jackson, Holden, MA (US);
Inventors:
Allen J. Brauns, Sturbridge, MA (US);
Stacey L. Jackson, Holden, MA (US);
Assignee:
Kadant Web Systems, Inc., Auburn, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B005/26 ;
U.S. Cl.
CPC ...
Abstract
A multiplayer composite doctor blade has a side edge configured for application to the surface of a rotating roll in a paper making machine. The doctor blade has an inner core and intermediate layers preferably enclosed by outer layers. The inner core is predominantly polymeric material. The intermediate layers on opposite sides of the core include reinforcing fibers. The side edge of the doctor blade has an abrasiveness as measured by ASTM test method D5181-91 of between about 4.0 to 5.0.