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:
Aug. 07, 2001
Filed:
Aug. 12, 1999
Applicant:
Inventors:
Eero Suomi, Hämeenlinna, FI;
Tapio Mäenp{umlaut over (aa)}, Helsinki, FI;
Arto Karjalainen, Kajaani, FI;
Assignee:
Valmet Corporation, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21F 1/100 ;
U.S. Cl.
CPC ...
D21F 1/100 ;
Abstract
A method for detecting contamination on or damage to a web-contacting face in a paper machine or a paper finishing machine, including the steps of detecting vibrations of the web-contacting face over a period of time by means of a plurality of detectors arranged in association with the machine and determining the location of the contamination on or damage to the web-contacting face based on the time the vibrations were detected.