Method of forming a curved tampon
US5153971A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Nov 26, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S604/904
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of forming a catamential tampon is disclosed which is capable of absorbing menstrual fluids. The method includes the steps of starting with an absorbent having a cross-sectional area of varying thickness. The thickest portion has a greater volume of fibers than the thinnest portion. The absorbent can be optionally enclosed with a cover. An opening is formed through the absorbent and/or cover and a withdrawal string is secured thereto. The absorbent is formed into a generally elongated, cylindrically shaped blank and then is compressed into a pledget having a zone of high density fibers and a zone of low density fibers. After compression, the zone of low density fibers will expand faster and/or to a greater extent than the zone of high density fibers, thereby forming a curved tampon. The curved tampon is rigid and self sustaining and can be used as either a digital tampon or with an applicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.