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:
Apr. 10, 2001
Filed:
Sep. 23, 1999
Ulrich Begemann, Heidenheim, DE;
Holger Humberg, Nattheim, DE;
Voith Sulzer Papiertechnik Patent GmbH, Heidenheim, DE;
Abstract
Process for cleaning or maintaining the cleanliness of a low-consistency branch of a stock density-regulated headbox system including a constant part of a paper or cardboard machine having at least one high-consistency branch and one low-consistency branch, possibly sectioned. The final concentration output by the headbox onto a wire or between two wires is determined by a mixing ratio of high-concentration and low-concentration suspension flows. The process includes supplying the low-consistency branch with an increased content of solid particles. Headbox system including a constant part of a paper or cardboard machine, having a stock density regulation that is sectioned across the machine width by variably mixing a high-consistency suspension and a low-consistency suspension, with a high-consistency branch and a low-consistency branch. The headbox system includes at least one supply to the low-consistency branch for introducing solid particle contents into the suspension flow.