Method and apparatus for making tampons
US11779494B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Aug 9, 2042 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B3/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present disclosure relates to apparatuses and methods for making tampons including primary and secondary absorbent members. During assembly, primary absorbent members, a continuous length of secondary absorbent members, and a continuous cord are advanced in a machine direction. Leading edges of the primary absorbent members are separated from each other in the machine direction by a pitch distance. Discrete secondary absorbent members are cut from the continuous length of secondary absorbent members. Leading edges of the discrete secondary absorbent members are also separated from each other in the machine direction by the pitch distance. The continuous cord is positioned on a first surface of the secondary absorbent members. And a second surface of a secondary absorbent member is positioned in contact with and in a facing relationship with a primary absorbent member. A thread is sewn through the continuous cord, the secondary absorbent member, and the primary absorbent member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.