Forming longitudinally pleated products
US9649792B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2014 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Apr 8, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2457
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming a continuous sheet of pleated, hook-form, fastener product includes training a substrate about a pressure roll having an outer surface defining circumferential grooves. As the substrate approaches a nip between the pressure roll and a mold roll calendered with the pressure roll, a portion of the substrate is disposed within a corresponding one of the grooves between the pressure roll and a stationary horn extending into the groove whereby a longitudinally-extending pleat is formed in the substrate. The pleated substrate is then passed through the nip where resin regions are laminated to a side of the substrate opposed to the pleat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.