Method and apparatus for applying discrete strips to a web of material
US4617082A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1986 |
| Grant date | Oct 14, 1986 |
| Priority date | — |
| Expiry date | Jan 6, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1702
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Continuous strips of a first material, e.g., elastic strips, are continuously supplied to flexible strip supports in a supply zone while the strip supports are in a linear configuration. The strip supports are carried on respective transfer members which are mounted on a rotatable support so that individual transfer members follow a closed (orbital) path upon rotation of the support. The continuous strips are cut into discrete strips adhered to respective flexible strip supports whose configuration, and that of the discrete strips adhered thereto, is then changed to a desired curvilinear configuration. The transfer members are then brought into transfer contact in a transfer zone with a moving web of second material, which may comprise the backing sheet of a disposable diaper construction, and the curvilinear strips are transferred to the web. Alternatively, or in addition, the individual transfer members are supported on radially translatable supports so that during rotation the orbital radius and thereby the linear velocity of individual transfer members may be selectively varied between a first radius and consequent linear velocity in the supply zone and a second radius and cons…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.