Membrane type fluid pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 28, 1997
Grant Date -
N/A
app pub date -
Dec 11, 1995
filing date -
Apr 8, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The diaphragm pump includes a housing having an opening defined at one end. A diaphragm is attached to the housing and extends over the opening. An inlet is defined in the housing for receiving a fluid and a driving element is attached to the housing and in driving engagement with the diaphragm to vibrate the diaphragm. An orifice is defined in the diaphragm to permit a discharge of the fluid therethrough when the diaphragm is in vibration. A spring is disposed within the housing for biasing a plunger towards the diaphragm so that the plunger sealingly engages the diaphragm.
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