Metering pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 4, 2001
Grant Date -
N/A
app pub date -
Apr 18, 2000
filing date -
Apr 18, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
The compact, easily useable metering pump results from a structure including a housing (20) with a pumping chamber (34) within the housing (20). A diaphragm (36) is located in the pumping chamber (34). An inlet includes a check valve (50) for allowing fluid to flow to one side of the diaphragm (36) but not the reverse and an outlet including a check valve (56) allows fluid to flow from the pumping chamber (34) but not into it. A pneumatically operated hydraulic pump (16) is located in the housing (20) and cycles the diaphragm (36).
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