Patent ID: 6296460
Filing Date: 2001-10-02
Classification: F04B

Abstract:
A drive cavity pump for pumping a fluid, said pump comprising:a pump housing having a plurality of pump cavities each defining a pump recess and first and second apertures in said recess;a plurality of diaphragms sealingly supported upon said plurality of pump cavities each of said diaphragms being formed of a flexible resilient material which together with said pump recesses forms a sealed fluid cavity having said first and second apertures therein;a first fluid coupling and means for coupling said first fluid coupling to said first apertures;a second fluid coupling and means for coupling said second fluid coupling to said second apertures;a plurality of diaphragm compression members; andmeans for moving said plurality of diaphragm compression members upon and across said diaphragms,said diaphragms being compressed into said recesses to block said first apertures and captivate a quantity of fluid and to expel said quantity outwardly through said second apertures.