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. 04, 1992
Filed:
Jan. 23, 1989
Applicant:
Inventor:
Jouko Ventola, Inkeroinen, FI;
Assignee:
Oy Tampella AB, Tampere, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34115 ; 34114 ; 34123 ; 162370 ;
Abstract
In the drying section of a paper or board machine, a web travels in a meander-like fashion around drying cylinders and it is provided with ducts for delivering web-run stabilizing suction into the drying section. At least one cylinder is provided with ducts for delivering suction in the interior of a drying cylinder, the jacket of the cylinder being provided with flow paths communicating with the duct for delivering suction outside the cylinder both in a sector in which web runs around the jacket of the cylinder and in a sector in which the jacket of the cylinder is unoccupied by the run of the web.