DOUBLE CAM LEVERS AND SAFETY LOCK FOR CAM LOCK FITTING
A method and apparatus for an improved safety cam lock fitting (54) having cooperating double cam levers (48, 50) having outer (62) and inner (64) portions so that when the outer cam levers (62) are opened and the inner cam levers (64) remain closed, the male (58) and female (56) conduits of the cam lock fitting (54) only slightly separate from each other allowing the operator to quickly reclose the cam lock fitting (54) if the operator observes that the cam lock fitting (54) still contains pressurized material. This is accomplished by providing a larger cam lobe (68) on the outer cam lever (62) and a smaller cam lobe (72) on a fork shaped inner cam lever (64) so that when the smaller cam lobe (72) is in a closed position and protrudes into a peripheral groove (86) on the male portion (58), the male (58) and female (56) conduits have a small space (106) therein between. An automatic lever latching mechanism (113) prevents the cam levers (62, 64) from being inadvertently opened.