Pump comprising a moving wall and use of a pump of this type
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United States of America Patent
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Issued Date -
Aug 23, 2007
app pub date -
Jun 24, 2005
filing date -
Jul 28, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a pump comprising a wall (3; 21, 22; 31, 32, 33), which forms an enclosed fluid volumetric space (1) and which can be moved by a first force (F) in a direction resulting in a decrease in volume and, after a preceding decrease in volumetric space, can be moved by a second force in a direction resulting in an increase in volume. The pump also comprises an inlet valve (8), which communicates with an inlet valve (6), and comprises an outlet valve (9) in an outlet line (7) of the fluid volumetric space (1). The inventive pump has a compact design due to the fact that it is provided in the form of a vacuum pump whose volumetric space can be decreased by the external first force acting against an elastically deformable material (2; 21, 22; 33) whose restoring force, after the external force ceases, generates the second force acting counter to the generated vacuum.
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