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. 20, 1993
Filed:
Dec. 18, 1991
Takashi Bando, Mihara, JP;
Kazuhide Sakamoto, Mihara, JP;
Hiromu Masuda, Mihara, JP;
Hiroyuki Fuchioka, Mihara, JP;
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
In a twin-wire former in a paper machine, an operation of a hybrid former mode and that of a gap former mode are conducted, and papers of quality conforming to the kind of papers can be made in a wide range of basis weight with regard to multiple kinds of papers. In the twin-wire former, a forming roll, which guides a top wire so that it can approach to a bottom wire to pinch the stock of paper and run approximately horizontally, is made adjustable in an up and down direction. Upper surfaces of blades of a forming board and a forming shoe provided inside a loop of the bottom wire, are upwardly convex so that dewatering can be effected mainly downward.