shown in fig6 b as the gasket 14 ages the overlap 76 decreases caused by shrinkage or reduced elasticity of the gasket 14 in either case however the overlap is sufficient to fully engage multiple of the teeth 62 62 u2032 preventing further outward motion of the door 16 once the latch has been locked thus eliminating the possibility of leakage if the door is inadvertently pulled referring now to fig1 and 6 c in the event that the door 16 is pushed inboard after the stop ramps 68 are engaged with the ramps 60 teeth 62 62 u2032 ensure that the ramp 68 is pulled along with ramps 60 causing stop support 70 to be pulled away from the frame 41 accommodating this movement and increased compression of the gasket 14 without allowing additional lateral motion of the stop support 70 or a decreasing of the overlap 76 in this way increased forces between ramps 68 and 60 are avoided when the inboard force on the door 16 is released and stop support 70 abuts frame 41 again such increased force could prevent disengagement of the stop ramps 68 by the actuating mechanism as will be described below a guide track 39 returns the stop support 70 to abutment with the frame 41 after this inboard force when the stop is rotated to an unlocked position referring now to fig7 rotation of the stop support 70 about center 72 is provided by means of a single.