Method and apparatus for stretching segmented stretchable film and application of the segmented film to a moving web
US8673098B2 · kind B2 · utility
11Cited by
418References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 2010 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Jun 18, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/15593
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An elastic material is cut, set to a product pitch, stretched a desired amount and applied to a moving target web to create a product with a desired amount of elasticity over a desired area. A vacuum wheel with an aggressive vacuum pattern is used for securing and stretching the stretchable film, the same type of wheel also capable of being used as a trim removal device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.