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. 19, 2005
Filed:
Aug. 21, 2002
Kazuhiko Masuda, Hiroshima-ken, JP;
Hiroshi Iwata, Hiroshima-ken, JP;
Masanobu Matsumoto, Hiroshima-ken, JP;
Keiichi Fujiki, Hiroshima-ken, JP;
Kazuhiko Masuda, Hiroshima-ken, JP;
Hiroshi Iwata, Hiroshima-ken, JP;
Masanobu Matsumoto, Hiroshima-ken, JP;
Keiichi Fujiki, Hiroshima-ken, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A paper former comprises two wires which converge for defining a paper production gap and a plurality of dewatering blades arranged in the paper production gap in a paper producing direction and brought into sliding contact with one of the two wires so that a stock is dehydrated while being conveyed in a state put in the paper production gap. Each of the plurality of dewatering blades is shaped into a convexly curved surface configuration bent along a traveling direction of the wires and equipped with a wire sliding contact surface brought into sliding contact with said wire for guiding the traveling of said wire, and grooves are made in said wire sliding contact surfaces as a moisture run-off opening for running off moisture developing through the dewatering from the wire side. This paper former thus constructed can suppress the occurrence of paper defects stemming from the landing of a material jet or paper defects stemming from the dewatering property, thus improving the paper quality.