Method of making a mechanical fastener using a crowned surface
US9687048B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | May 5, 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 moving the slit web over a crowned surface 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 crowned surface may be an air bearing, or at least a portion of the crowned surface is a low-friction surface, and the crowned surface and the slit web are not moving at the same speed in the same direction. The crowned surface may be provided with at least one ridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.