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:
Dec. 07, 2004
Filed:
Mar. 24, 2003
YKK Corporation, Tokyo, JP;
Abstract
A separable bottom end stop for a slide fastener comprising a box, a box pin, and an insert pin. Protruding guide portions which protrude onto respective fastener tapes are integrally molded with respective side faces at tape-sides of the box pin and the insert pin via thin guide portions. The separable bottom end stop is formed of polyacetal resin, and a distance d between each outer side face of the box and each of the protruding guide portions and a protrusion height h of each of the protruding guide portions from a surface of each of the thin guide portions when the box pin and the insert pin are mounted into the box satisfy the equation (I): tan (d/h) ≧33°, where d≠0. The separable bottom end stop becomes hard to be broken with having excellent durability, despite using polyacetal resin which allows various coloring achieved easily, but is easy to be broken.