Method and apparatus for folding and cutting an interconnected web of disposable diapers or the like having stretched elastic leg bands secured thereto
US4022456A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1975 |
| Grant date | May 10, 1977 |
| Priority date | — |
| Expiry date | Jul 11, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H45/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An interconnected web of disposable diapers containing a pair of continuous, stretched strands of elastic aligned generally parallel to the direction of web travel, is folded along its length from a substantially flat condition to produce a C-shaped, transverse cross-section by means of a conventional board and guide folder. The C-folded web is maintained under tension during the longitudinal folding operation to keep the continuous elastic strands in a stretched condition, and the web is cut transverse to the direction of web travel without releasing the tension in either the individual diapers cut from the web or in the advancing web. Means are provided for transversely folding the individual diapers cut from the web about their midpoints while maintaining the elastic strands associated therewith in a stretched condition and the diaper under positive control. Because the advancing web of interconnected diapers is maintained under positive control at all times, the individual diapers severed from the web are cut in register with respect to one another. This is of critical importance in situations where the web of interconnected disposable diapers is comprised of a plurality of dis…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.