Patent ID: 6935844

Claim:
A gas pressure driven fluid pump, said pump comprising: a pump tank having a liquid inlet and a liquid outlet; a float carried within the interior of said pump tank, said float being operable to move between a low level position and a high level position; a first magnet portion operatively connected to said float, said first magnet portion moving between a first position and a second position as said float moves between said low level position and said high level position; a second magnet portion operatively associated with said first magnet portion so as to move along an approximately parallel axis; a valve assembly connected to said second magnet portion, said valve assembly being switchable between exhaust porting and motive porting in a snap over fashion due to magnetic interaction between said first magnet portion and said second magnet portion; and said valve assembly moving to said exhaust porting when said first magnet portion reaches said first position and to motive porting when said first magnet portion reaches said second position such that liquid will be alternately introduced into and discharged from said pump tank.