Patent ID: 6074179
Filing Date: 2000-06-13
Classification: F04B,H01L

Abstract:
A magnetostrictive peristaltic pump for transferring a liquid from a supply chamber to a receiving chamber comprising:a housing coupled to said supply chamber and said receiving chamber, said housing having an inner surface and an outer surface;a core section mounted in said housing, said core section having an outer surface which is flush with the inner surface of said housing to form a seal between the outer surface of said core section and the inner surface of said housing;said core section comprising a magnetostrictive material which extends the length of said housing to communicate with said supply chamber and said receiving chamber;a plurality of equally spaced apart electrical coils wrapped around the outer surface of said housing from one end of said housing to the other end of said housing;signal generator means for producing a plurality of electrical signals and sequentially providing one of said electrical signals to each of said plurality of electrical coils, said plurality of electrical coils being sequentially energized by said electrical signals to form a moving cavity within said core section, said moving cavity being formed adjacent the inner wall of said housing; andsaid moving cavity, responsive to said electrical coils being sequentially energized by said electrical signals, traveling longitudinally from said supply chamber to said receiving chamber to extract said fluid from said supply chamber and supply said fluid to said receiving chamber.