Linear pump with exhaust pulsation attenuation
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United States of America Patent
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Issued Date -
Feb 16, 2006
app pub date -
Aug 13, 2004
filing date -
Aug 13, 2004
priority date (Note) -
Abandoned
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Abstract
A linear pump having an axially aligned cylinder and piston arrangement driven by an electromagnet motor has an exhaust chamber defining a cavity covered by a diaphragm. The diaphragm is movable toward the cavity in response to pressure fluctuations in the exhaust chamber to attenuate pulsations in an air stream exiting the exhaust chamber. A diaphragm is mounted over the recessed cavity by a support ring having an open center allowing air to act against the diaphragm.
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