lips 60 and 64 this is shown in more detail in fig6 a gentle squeezing action in the direction of arrows 86 disengage the recess 72 from the detent 42 a similar action occurs with respect to recess 70 disenganging from detent 40 as a result the edge 88 of the recess 72 clears the internal face 90 of the detent projection 42 to permit removal of the grill from the hood in the direction of arrow 92 the spacing of the stop 38 for example relative to the leading edge 94 of the grill provides for a slight spacing 96 to permit clearing the edge 94 relative to the stop 38 so that the surfaces do not bind hence by way of a gently squeezing action the grill can be disengaged and removed from the vent hood for service there are many significant advantages and features which flow from this type of dryer exhaust vent hood design the one way orientation for the grill ensures that the grill is properly installed in the vent hood furthermore the one way orientation ensures that the user squeezes on the correct sides of the grill any attempt to squeeze the curved lower lip 66 will not work because due to the inherent curved nature of the.