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.:

US 7681327 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 23, 2010

Filed:

Oct. 24, 2006
Applicants:

Veli-pekka Koljonen, Kärnä{umlaut over ( )}, FI;

Matti Lehtonen, Lannevesi, FI;

Inventors:

Veli-Pekka Koljonen, Kärnä{umlaut over ( )}, FI;

Matti Lehtonen, Lannevesi, FI;

Assignee:

Metso Paper, Inc., Helsinki, FI;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06F 58/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A vacuum belt conveyor of a web forming machine for transferring a threading tail has at least two turning rolls () and an air-permeable belt loop (), arranged around the turning rolls (). The vacuum belt conveyor also has vacuum means () for creating a vacuum effect on both the section of the belt loop () conveying the threading tail () and in connection with the first turning roll () of the turning rolls (). Arranged in connection with the first turning roll () in the travel direction of the threading tail () there is at least one cross-directional dividing structure () for creating at least two axial vacuum zones ().


Find Patent Forward Citations

Koljonen, Veli-Pekka. (2010). Vacuum belt conveyor of a web forming machine for transferring a threading tail (U.S. Patent No. 7681327). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7681327

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