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:
Jan. 30, 1979
Filed:
May. 03, 1977
Applicant:
Inventors:
Alfred Bubik, Ravensburg, DE;
Hans-Joachim Schultz, Ravensburg, DE;
Assignee:
Escher Wyss GmbH, Ravensburg, DE;
Primary Examiner:
Int. Cl.
CPC ...
D21F / ; D21F / ;
U.S. Cl.
CPC ...
162343 ; 162344 ;
Abstract
The head box is provided with a distributor having a plurality of pulp distributing ducts which have terminal sections converging towards the throat of the box. The distributing ducts also have step-like widenings upstream of the terminal sections to create a strong turbulence in the pulp flow to maintain the solids content of the pulp in suspension. The terminal sections terminate short of the throat so as to reduce any risk of cross-flow and thus improve the flow of the pulp.