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:
Aug. 31, 1993
Filed:
May. 22, 1992
Masahiro Tanaka, Hirakata, JP;
Hiroyuki Kobayashi, Yawata, JP;
Akira Inanobe, Toyohashi, JP;
Yoshio Goda, Yao, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A method for manufacturing an expanded mesh sheet, includes the steps of: forming a plurality of slits on a strip at predetermined pitches to simultaneously form a plurality of strip-shaped lift portions and connecting portions for connecting the strip-shaped lift portions to each other in a lattice pattern, the slits each being intermittently formed in a longitudinal direction of the strip and the adjacent slits in a widthwise direction of the strip being shifted to each other in the longitudinal direction of the strip; and expanding the strip in the widthwise direction thereof. An apparatus for manufacturing the sheet, includes: a pair of rolls engaged to each other, each roll having a plurality of disk-shaped cutters; and a driving device for driving the rolls for rotation. Each cutter has a cutting edge portion and a relief on a periphery thereof at predetermined pitches to form slits, each of which extends in a longitudinal direction of the strip, on the strip by the cutting edge portions of the cutters of the rolls to form strip-shaped lift portions and to form a connecting portion for connecting the strip-shaped lift portions to each other on a position between the slits on an extending direction of the slits by the reliefs of the cutters of the rolls.