Steam driven pump
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United States of America Patent
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-
Aug 5, 2003
Grant Date -
N/A
app pub date -
Jun 29, 2001
filing date -
Jun 29, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pump has a housing including at least one fluid channel; a motive fluid inlet port; a suction fluid inlet port; and a discharge port. The pump also includes a venturi disposed in the fluid channel of the housing. The venturi is connected by way of the fluid channel to the motive fluid inlet port, the suction fluid inlet port, and the discharge port. A ball check valve is operatively disposed between the motive fluid inlet port and the venturi for controlling the flow of motive fluid. The pump further includes an actuator assembly for actuating the ball check valve. In the preferred embodiment, the ball check valve has only an opened position and a closed position.
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