Breast shield
US4270538A · kind A · utility
53Cited by
2References
2Claims
0Family size
Inventor
Key dates
| Filing date | Sep 6, 1979 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Sep 6, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/15016
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A two-piece breast shield to be worn by a nursing woman is disclosed. A base, contoured to confront the wearer's breast, has an aperture through which the nipple can pass. A dome-shaped cover overlies the base, fitting onto it to define an interior milk-receiving chamber. A small vent hole near the edge of the cover is surrounded by an inwardly extending tube to prevent milk from flowing out through the hole when the woman wearing the breast shield bends over.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.