Diaphragm pump and pump for double-breast pumping
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United States of America Patent
Stats
-
Jul 10, 2001
Issued Date -
N/A
app pub date -
Apr 3, 1998
filing date -
Aug 3, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A 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 in a single chamber which can be used to operate one or two breast shield assembles. In another embodiment, the pump is particularly adapted for double-pumping and provides two chambers which generate vacuum.
First Claim
Family
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