Fabricating continuously connected fastener stock
US6569369B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2001 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jul 12, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S206/82
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Continuously connected fastener stock and a method of making same. In one embodiment, the method involves providing a rotating molding wheel, the wheel being provided with a peripheral impression comprising a pair of peripherally-extending side members interconnected by a plurality of cross-links. Molten plastic is extruded into the peripheral impression of the wheel, with a layer of controlled film overlying the peripheral impression. The molten plastic is then allowed to solidify. A knife in substantially elliptical contact with the peripheral impression is then used to skive excess plastic from the rotating molding wheel. The knife is provided with a pair of cut-out portions along its bottom edge, each cut-out portion being aligned with one of the peripherally-extending side members so as to augment the transverse cross-sectional size thereof. The continuously connected fastener stock thus formed is then removed from the rotating molding wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.