Needle for use in the rodless dispensing of plastic fasteners
US5588575A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1994 |
| Grant date | Dec 31, 1996 |
| Priority date | — |
| Expiry date | Sep 13, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Needle for use in the rodless dispensing of plastic fasteners of the type comprises a flexible filament and a cross-bar disposed at one end of the flexible filament. In one embodiment, the needle comprises a solid elongated member terminating at its front end in a tip adapted to penetrate a desired article of commerce and a chamber adapted to receive a cross-bar of a plastic fastener. The chamber includes a front end, a rear end, an open top and an open bottom. The open top, which is spaced rearwardly a distance from the tip, is appropriately sized and shaped to permit the insertion and removal of a cross-bar into and from the chamber. The front end is downwardly angled towards the tip to releasably engage the top surface of the front end of the cross-bar, and the rear end has a pair of walls intersecting in a V-shape to releasably engage both the top surface and the bottom surface of the rear end of the cross-bar in such a way as to prevent the cross-bar from being pulled out of the chamber through the open top when low tension is applied to the flexible filament (i.e., prior to the complete insertion of the cross-bar through the article of commerce), but yet, so as to cause the c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.