Disposable diaper capable of being put on either from the front or the back of a wearer
US7288079B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2003 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Apr 17, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/5633
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disposable diaper capable of being put on from either the front or the back of a wearer. The ratio of the minimum width W1 of the crotch section to the whole width W2 of the longitudinal end section having the fastening tapes is from 0.30 to 0.75. The minimum width W1 is in the area extending from the centerline across the diaper that divides the diaper length in two equal halves toward both the longitudinal end sections thereof by ±10% of the total length of the diaper. The area ratio S1/S2 is from 0.45 to 0.60, where S1 is the area of each region surrounded by an imaginary straight line L1, an imaginary straight line L2, and each arched side edge of the crotch section, and S2 is the area of each region surrounded by the line L1, the line L2, and an imaginary straight line L3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.