Method and apparatus for slitting and providing selvedge by ultrasonic means on hook and loop type fastener tapes
US4662037A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1985 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Apr 15, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/275
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for ultrasonically providing selvedge on separable fasteners of the hook and loop-type. Portions of the separable fastener member are ultrasonically softened or melted and pressed toward the surface of the base member so as to be combined, or in some instances, consolidated therewith. The portions may be given a textured appearance by use of a textured anvil having either a simulated selvedge surface or even a trademark or logo impressed, machined or etched thereon. The tape may be provided with several selvedge portions and then slit medially of the portions to provide at least two separable fasteners of smaller width from a separable fastener of wider width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.