System and method for tearing off and rolling up a strip of absorbent fiber sheet
US11135099B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2018 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Sep 30, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/34
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for tearing off and rolling up a strip of absorbent fiber sheet for a tampon are discussed. An endless absorbent fiber sheet is propagated with a first linear speed by a first pair of rolls, and with at least the first linear speed by a second pair of rolls. A pulling means is provided to induce a second linear speed in the sheet larger than the first linear speed for tearing off a strip from the sheet. The first pair of rolls is configured to maintain the first linear speed of the absorbent fiber sheet, while the second pair of rolls is configured to rotate in a freewheel-type manner when the absorbent fiber sheet is pulled through the second pair of rolls at linear speeds larger than the first linear speed. Preferably, the pulling means is a rotatable clamping means for rolling up the strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.