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The present invention relates to a cylinder assembly for a mini air compressor and more particularly to a cylinder assembly for a mini air compressor with at least one simplified check valve that uses a resilient disk to open and close the valve.
A cylinder assembly for a mini air compressor includes a cylinder, a discharge check valve, a piston, a supply check valve and a piston rod. The cylinder has two open ends, and the piston with an open end and a closed end is slidably mounted in the cylinder. A supply check valve is mounted on the closed end of the piston. A discharge check valve is adapted to mount on and seal one end of the cylinder. At least one of the supply check valve and the discharge check valve has with a flexible, resilient disk. Two check valves are configured such that only one valve opens at a time when the piston slides in the cylinder.
The cylinder assembly for a mini air compressor as claimed in claim 1, wherein the supply valve has a disk stub formed on the closed end of said piston and extends toward the discharge check valve and a resilient disk mounted on said disk stub to cover said supply ports to allow said supply check valve to open toward said discharge check valve.
The cylinder assembly for a mini air compressor as claimed in claim 1, wherein the discharge valve has a disk stub facing said strongback and formed on the body of said discharge check valve and a resilient disk mounted on said disk stub to cover said discharge ports to allow the discharge check valve to open toward said strongback.
