Method for determining the work required to expel a tampon from a tampon applicator
US8402809B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2009 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Nov 23, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/202
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for determining the work required to expel a tampon from a tampon applicator having a barrel containing the tampon and a plunger for expelling the tampon from the barrel. The method includes the steps of selecting and applying an applicator gripping test force to a grip zone on the barrel of the tampon applicator and selecting a tampon expulsion test rate and applying a force to the plunger sufficient to expel the tampon from the barrel of the tampon applicator at the selected tampon expulsion test rate. Further, the method includes the step of calculating the force on the plunger required to expel the tampon from the barrel at the selected tampon expulsion test rate as a function of the distance the tampon travels during expulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.