Patent ID: 7122013

Claim:
A device for massaging eyes comprising: a housing comprising a compartment, a lid hingedly connected to a top edge of the compartment, a control unit, and a display adjacent the control unit; a mask received in the compartment and enclosed by the lid in a nonoperating state, the mask comprising a pair of straps adapted to hold to the head of a person, left and right eye portions, a dial for adjusting a distance between the eye portions, annular left and right guards formed of flexible plastic material surrounding rear portions of the eye portions respectively, and left and right diaphragms in the eye portions respectively; a pneumatic-powered cylinder assembly comprising a cylinder, a step motor at one end of the cylinder, the step motor having a shaft, a rod having one end connected to the shaft, a bar having a central aperture slidably put on the rod opposing the shaft, a piston closely fitted in the cylinder and having one end fixedly connected to the bar, the piston having a lengthwise, central bore for permitting the rod to move therein, two opposite, elongated slots formed on a circumferential surface of the cylinder, and two opposite nuts fastened at both ends of the bar such that a movement of either end of the bar is defined between both ends of either slot; and a plastic tube interconnected the mask and the pneumatic-powered cylinder assembly; wherein in an operating state the shaft rotates in a first direction to cause both the bar and the piston to move forward for compressing air in the cylinder prior to arriving the mask via the tube in response to a first action of the step motor; the shaft rotates in a second opposite direction to cause both the bar and the piston to move rearward for drawing air from the eye portions of the mask via the tube by building pressure below atmospheric pressure in the cylinder in response to a next second action of the step motor; and the first and second actions of the step motor are performed alternately for changing air pressure in the mask from positive to negative alternately, thereby massaging the eyes.