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. 16, 2013
Filed:
Dec. 22, 2010
Masatoshi Hotta, Kiyosu, JP;
Tsuyoshi Shimizu, Kiyosu, JP;
Masatoshi Hotta, Kiyosu, JP;
Tsuyoshi Shimizu, Kiyosu, JP;
Toyoda Gosei Co., Ltd., Kiyosu-Shi, Aichi-Ken, JP;
Abstract
An insert with a light weight per unit length, which is securely separable to obtain insert pieces, a method for producing such an insert, and a method for producing long products using such an insert. The insert includes a large number of insert pieces and joining parts formed by the application of a rolling operation and a tension force, and has a ladder-shaped configuration. Slits are defined between adjacent insert pieces, and include first slits, each having a large width in a longitudinal direction of the insert, and second slits, each having a width smaller than that of the first slits so as to be alternately formed. The joining parts include first joining parts, each having a small width in a width direction of the insert, and second joining parts, each having a width larger than that of the first joining parts so as to be alternately formed. The width ratio of the insert pieces, the first slits and the second slits in the longitudinal direction is determined to 100:(65˜104):(24˜53), whereas the width ratio of the first joining parts to the second joining parts in the width direction is determined to 20:(28˜33).