Sealing system
US9655786B2 · kind B2 · utility
3Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2015 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Jan 22, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/4878
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An ultrasonic sealing system in a machine for making composite webs in the production of absorbent sanitary articles includes a contact roller having an axis of rotation and including a central portion and a peripheral portion which is supported by the central portion and includes an outer surface forming the outer surface of the contact roller itself. The contact roller includes a sealing pattern on the outer surface of the peripheral portion and also includes springs acting between the central portion and the peripheral portion, which is supported by the peripheral portion by means of the springs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.