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. 01, 2006
Filed:
Nov. 10, 2004
Yukihisa Takeuchi, Aichi-pref., JP;
Hiroyuki Tsuji, Nagoya, JP;
Kazumasa Kitamura, Itinomiya, JP;
Masashi Watanabe, Nagoya, JP;
Yukihisa Takeuchi, Aichi-pref., JP;
Hiroyuki Tsuji, Nagoya, JP;
Kazumasa Kitamura, Itinomiya, JP;
Masashi Watanabe, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A wire sawing apparatus includes a wire, a wire feed roller, and two basic rollers. The three rollers have the same diameter and are arranged in such a manner that their axes of rotation are in parallel with one another. Cutting-positioning circumferential grooves are formed on the two basic rollers at axially paired same positions. Intermediate circumferential grooves are formed on the wire feed roller and arranged in the axial direction such that the axial position of each intermediate circumferential groove corresponds to an axially central position between two adjacent pairs of cutting-positioning circumferential grooves. The wire is spirally wound a plurality of turns on the three rollers while being fitted into the circumferential grooves.