Diaphragm pump and pump mounted in a carrying case useful in breast pumping
US5776098A · kind A · utility
89Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1995 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Aug 3, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/75
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An motorized pump is disclosed that includes a flexible diaphragm fitting within a rigid member, a motor drive mechanism for drawing a puller member attached to the diaphragm away from the rigid member to create a space between the diaphragm and the rigid member and form a negative pressure region within that space, and an outlet communicating with the negative pressure region. In one embodiment, the pump provides a negative pressure source for a breastpump that is readily portable by virtue of the soft carrying case within which the diaphragm pump and motor are housed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.