Two-way air pump

Details Two-way air pump Two-way air pump

2007-05-01

2007-05-01

Nguyen, Hoang (Department: 3748)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Nozzle discharging onto motor runner

C415S203000, C415S206000

Reexamination Certificate

active

10959933

ABSTRACT:
A two-way air pump includes a housing, an air flow controller, a check valve, and a valve actuator. The housing confines an air control chamber, and is formed with a valve hole, an air outlet and an air inlet. The air flow controller confines an air impeller chamber, is formed with a hole set, is mounted rotatably in the air control chamber, and is rotatable between inflating and deflating portions to control fluid communication among the valve hole, the air outlet, the air inlet and the air impeller chamber. The check valve is mounted in the valve hole, and is movable between control-enabled and control-disabled positions. The valve actuator is provided on the air flow controller, and drives the check valve to the control-disabled position when the air flow controller is rotated to the deflating position. An air impeller is mounted rotatably in the air impeller chamber.

REFERENCES:
patent: 2945451 (1960-07-01), Griswold
patent: 5622621 (1997-04-01), Kramer
patent: 6776136 (2004-08-01), Kazempour
patent: 7025700 (2006-04-01), Hoelscher
patent: 7090097 (2006-08-01), Kazarian et al.

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