Method of making a mechanical fastener using diverging disks
US9591896B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | May 16, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method of making a mechanical fastener. The method includes providing a slit web having mechanical fastening elements, applying tension to the slit web in the machine direction, and spreading the slit web in the cross-machine direction by directing its side edges over two rotating diverging disks to provide a spread mechanical fastening web. The slit web includes a plurality of interrupted slits that are interrupted by intact bridging regions of the web. The two rotating diverging disks are laterally spaced and have a support surface between them that contacts the slit web during the spreading. The spread mechanical fastening web includes multiple strands of the slit web attached to each other at least at some of the intact bridging regions and separated from each other between at least some of the intact bridging regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.