Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Brian H. Silver0
Larry D. Annis0
Date of Patent
March 7, 2006
0Patent Application Number
099015090
Date Filed
July 9, 2001
0Patent Citations Received
Patent Primary Examiner
Patent 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.
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