PERISTALTIC PUMP Russian patent published in 1998 - IPC

FIELD: peristaltic pumps. SUBSTANCE: pump has inlet hole, elastic ferromagnetic body in form of ferromagnetic balls in lubricating liquid and flexible envelope embracing the magnetic circuit with inductors located along axis. Movable magnetic field created around inductors by means of switching device deforms flexible envelope carrying the medium being handled. Innovation of invention consists in use of ferromagnetic balls in lubricating liquid which may move in axial passages towards initial position, thus increasing magnetic permeability of system. EFFECT: increased magnetic permeability. 6 cl, 2 dwg