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. 12, 1985
Filed:
Apr. 16, 1984
Applicant:
Inventors:
Sakari Laitinen, Huutjarvi, FI;
Tapani Nyman, Karhula, FI;
Assignee:
A. Ahlstrom Osakeyhtio, Noormarkku, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21F / ; D21F / ;
U.S. Cl.
CPC ...
162336 ; 162344 ;
Abstract
The outer walls of the beams of a papermachine headbox are heated by means of heat transferred from the stock to a temperature equal to that of the inner walls in contact with the stock. This is preferably carried out so that the liquid which is circulated in a closed liquid circulation through liquid spaces adjoining the outer walls, is caused to be in indirect heat transfer contact with the stock.