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 6494993 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 17, 2002

Filed:

Apr. 27, 2001
Applicant:
Inventor:

Antti Suonperä, Jyväskylä, FI;

Assignee:

Metso Paper, Inc., Helsinki, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 1/104 ;
U.S. Cl.
CPC ...
D21F 1/104 ;
Abstract

The invention concerns multi-layer web formation by means of a simple basic-stock system and in particular a method for regulation of the properties of the different layers in a stock system that comprises several layers by means of additional stocks. The source (M) of basic stock is divided into 2 . . . n separate component flows (M . . . M ), with which additional stocks (B . . . B ) are mixed so as to form homogeneous mixtures with the basic stock, and the homogeneous stock flows are passed further by means of pumps (A . . . A ) through machine screens (s . . . S ) into the inlet header of a multi-layer headbox (P).


Find Patent Forward Citations

Suonperä, Antti. (2002). Multi-layer web formation by means of a simple basic-stock system (U.S. Patent No. 6494993). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6494993

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…