X-ray film cartridge

Claim 1

An X-ray film cartridge comprising in combination: a rectangular cartridge body having a front wall, a pair of side walls and a back wall; a rectangular cover hinged at one side thereof to the back wall of said body by means of a pair of hinge means; a pair of latch means provided at one side of said cover opposite to the hinged side, said latch means being manually operable to be moved from a latching position to a released position; a pair of slots provided in the front wall of the body to be engaged with said latch means of the cover; a cushion pad made of elastic material attached to the inner surface of the cover; an intensifying sheet attached to the surface of the cushion pad; and a second intensifying sheet attached to an inner surface of the body; wherein the improvement comprising a number of holes provided in said cushion pad and a convex part provided in said cover, said convex part of the cover being convex to the inside and having a contour represented by concentric elliptical contour lines whose center is located at the center of the rectangular cover.