Pump and actuator mechanism

Details Pump and actuator mechanism Pump and actuator mechanism

F - Mech Eng,Light,Heat,Weapons

04

B

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F04B 43/04 (2006.01) A61M 1/10 (2006.01) F04B 43/08 (2006.01) F04B 43/09 (2006.01)

Patent

CA 1162701

PUMP AND ACTUATOR MECHANISM ABSTRACT A pump is described in which a flexible enclosure defines a pump chamber and in which the contents of the pump chamber are expelled by movement of a pair of opposed pusher elements engaged with the enclosure. The pusher elements are displaced by at least one pair of beam springs, each of which is pivotally supported at one end and is en- gaged with one of the pusher elements at the other end. The ends of the beam springs opposite the pusher elements are pivoted by acutation of symmetrical solenoid armatures, causing each of the springs to be stressed. Relief of the spring stress forces the pusher elements toward each other. De-energization of the solenoid armatures permits the beam springs to pivot back to the original position upon filing of the pump chamber.

390832

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