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:
May. 18, 1993
Filed:
Feb. 03, 1992
Jyrki Jaakkola, Korpilahti, FI;
Michael Odell, Jyvaskyla, FI;
Valmet Paper Machinery Inc., , FI;
Abstract
A wire loading device in a paper machine, by whose means a mechanical load is applied to the wire of the paper machine across its entire width, is disclosed. By means of this load, a pressure pulse is applied to the fiber layer or web supported by a wire or between wires. By means of the pressure pulse, the dewatering of the web is promoted, the formation of the web is improved, and/or the transverse profiles of different properties of the web are controlled, such as the transverse profiles of dewatering, filler distribution, formation, and/or retention. The loading device includes a plate-shaped spring blade, whose side is arranged as substantially parallel to the run of the wire or wires. The spring blade is adapted to drag against the inner face of a wire loop to produce a pressure pulse. The spring blade is attached, from outside its dragging area, to a frame part of the loading device. A loading force that produces the pressure pulse and curves the spring blade in the machine direction is produced by an intermediate of the frame part and/or loading devices.