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:
Feb. 17, 2009
Filed:
Feb. 09, 2005
Juhani Vestola, Jyväskylä, FI;
Heikki Karttunen, Jyväskylä, FI;
Juhani Vestola, Jyväskylä, FI;
Heikki Karttunen, Jyväskylä, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
A grooved forming roll in a paper machine has a rotably supported shell () with circular openings () arranged to be open at least on the outer surface of the shell (). Each opening () has a circular groove which is formed on the outer surface and which is arranged concentrically relative to the opening (). A portion of the formed circular openings () extends to each opening () from each adjacent opening (). The outer radius (r) of the circular groove () is arranged such that the number of necks (24), delimited by the adjacent openings () and their circular grooves () on the shell outer surface within the area of one circular groove (), is greater than the number of the adjacent openings () of the corresponding opening ().