Patent ID: 8267513

Claim:
Eyeglasses having an outer frame and a detachable inner frame eye shield, comprising: an outer frame having a left and right lens, a left hinge on the inner surface of the outer frame a right hinge on the inner surface of the outer frame, a left riser on the inner surface of the outer frame between the left hinge and left lens with an indentation for receiving a nub, and a right riser on the inner surface of the outer frame between the right hinge and right lens with an indentation for receiving a nub; and an inner frame eye shield having a substantially rigid base which conforms to the contours of the outer frame including the left and right lenses, the inner frame having foam sealing elements on the inner surface of the inner frame around the outside of the left and right lenses, a left channel in the outer surface of the inner frame, at the left end of the inner frame, sized to receive the left riser on the inner surface of the outer frame, the left channel including a nub sized to fit into the indentation in the left riser of the outer frame, a right channel in the outer surface of the inner frame, at the right end of the inner frame sized to receive the right riser on the inner surface of the outer frame, the right channel including a nub sized to fill into the indentation in the right riser on the outer frame, thereby firmly holding the inner frame eye shield to the outer frame.