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:
Nov. 21, 2000
Filed:
Aug. 12, 1998
Applicant:
Inventors:
Jan Lindstrom, Naantali, FI;
Juha Leimu, Turku, FI;
Assignee:
Valmet Corporation, , FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; B08B / ; B08B / ; B08B / ;
U.S. Cl.
CPC ...
134 21 ; 134 15 ; 134 34 ; 134 36 ; 134 37 ; 153091 ; 15345 ;
Abstract
A method for cleaning a web by removing dust and other particles therefrom in which a blowing is directed at a web to cause the separation of dust from the web and a suction effect is applied to the web to remove the dust separated from the web. A vortex flow may be produced before the dust separating blowing in the running direction of the web to prevent carriage of the dust into the environment and to compensate for the suction effect on the runnability of the web.