A two-stage air valve actuator for a double-diaphragm pump

A device is provided for controlling the air supply to and exhaust from an air driven pump having two diaphragm chambers (44, 46), each with a liquid pumping section and an air section separated by a diaphragm (40, 42). The device comprises a chamber (52) containing a pilot valve (60) for actuation...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	STEVEN PAUL PLAGER, RICHARD DEAN ZARNEKE, HAROLD JOHNSON, DANIEL S KVINGE
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES WEAPONS
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