Method of applying curved leg elastics using pucks with curved surfaces
US6375769B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Oct 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of applying curved leg elastics to absorbent garments involves stretching and wrapping a pair of elastic ribbons about a first curved surface of a pair of pucks. A portion of each of the elastic ribbons is simultaneously folded onto a second surface of each of the pucks. The pucks are attached to a rotating device that rotates the pucks into alignment with a substrate. As the pucks are rotated toward the substrate, the pucks are also oscillated individually toward the substrate. Once the second surfaces of the pucks are aligned parallel to the substrate, the substrate is bonded to the second surface portion of each of the elastic ribbons in their stretched positions on the pucks, thereby forming finished seams. The resulting absorbent garments have gasket-like leg openings with improved comfort and aesthetic appeal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.