Method and an arrangement for producing basic fastener tab material, such basic starting material, and fastener tabs
US6649001B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Aug 3, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/681
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of producing basic starting material for the manufacture of fastener tabs comprises the steps of: stretching a first sheet of elastic material in a first direction; applying a second and a third sheet of material onto respective opposite sides of the first sheet; fastening the three material sheets together in at least two mutually separated zones that extend parallel with each other in one direction perpendicular to the first direction; dividing the first sheet in each region between two zones along a line that lies between the zones, whereby the first sheet in each region between the zones contracts to a non-stretched state, and thereafter fastening the sheets together in each region between the zones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.