Patent ID: 7210902

Claim:
A two-way air pump comprising: a housing confining an air control chamber and formed with a valve hole, an air outlet and an air inlet; an air flow controller confining an air impeller chamber, formed with a hole set, mounted rotatably in said air control chamber, and rotatable between inflating and deflating portions, wherein, when said air flow controller is at the inflating position, said hole set is disposed such that said air inlet and said valve hole are in fluid communication with said air impeller chamber, and such that said air outlet is fluidly isolated from said air impeller chamber, and when said air flow controller is at the deflating position, said hole set is disposed such that said air outlet and said valve hole are in fluid communication with said air impeller chamber, and such that said air inlet is fluidly isolated from said air impeller chamber; a check valve mounted in said valve hole and movable between control-enabled and control-disabled positions, wherein, when said check valve is at the control-enabled position, said check valve blocks ambient air flow into said air control chamber via said valve hole, and permits air flow from said air control chamber out of said housing through said valve hole, and when said check valve is at the control-disabled position, said check valve permits ambient air flow into said air control chamber via said valve hole; a valve actuator provided on said air flow controller for driving said check valve to the control-disabled position when said air flow controller is rotated to the deflating position; an air impeller mounted rotatably in said air impeller chamber; and a drive unit coupled to said air impeller for driving rotation of said air impeller in said air impeller chamber.