Superimposed embossing of capped stem mechanical fastener structures
US5868987A · kind A · utility
63Cited by
32References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Jun 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/2792
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
There is provided a method of capping mechanical fasteners from a web having an array of upstanding stems. A heated surface member is positioned opposite a support forming a nip into which the web is fed. The heated surface member has a series of laterally spaced elongated peak and valley structures such that more than one peak and valley structure contacts and deforms each stem structure. The peak and valley groove structures provided asymmetric elongation and deformation of top portion of the stem structures forming hook heads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.