Patent ID: 6533560
Filing Date: 2003-03-18
Classification: F04B

Abstract:
An electromagnetic oscillating type pump for oscillating diaphragms (5) connected to an oscillator (4), the pump having an electromagnetic portion (2) comprising one or a plurality of iron cores (20) and respective coils (21), the oscillating caused by utilizing magnetic interaction between the electromagnetic portion (2) and a magnetic body (3), wherein a frame portion (19517483) of resin mold is formed by molding resin on an outer surface of the electromagnetic portion (2) and further wherein the electromagnetic portion (2) comprises an iron core positioning tool (18), for positioning and holding in relative position the one or a plurality of iron cores (2082) with the respective coils (21), the iron core positioning tool (18) disposed at an inner peripheral portion of the electromagnetic portion (2) so as to be at least partially enclosed by the frame portion (19517483).