Patent ID: 8387830

Claim:
A dispenser housing that receives a refill unit including a container and pump associated with the container to pump contents from the container, the dispenser housing comprising: an actuator carriage moveable between a rest position and an actuated position, wherein, when a refill unit is received in the dispenser housing, movement of the actuator carriage from said rest position to said actuated position actuates the pump of the refill unit; an engagement tab extending from said actuator carriage; a lockout device moveable between an open position and a closed position, wherein, when said lockout device is in said open position, said actuator carriage is movable from said rest position to said actuated position, and, when said lockout device is in said closed position, movement of said actuator carriage is blocked by said lockout device such that said actuator carriage cannot be moved from said rest position to said actuated position, said lockout device including: a slide bar, a notch in said slide bar, a latch having a latch post and a tooth, said tooth selectively engaging said notch, wherein, when said tooth engages said notch, said lockout device is held in said open position, and, when said tooth is disengaged from said notch, said lockout device is forced to said closed position, a stop tab extending from said lockout device, a shape memory alloy wire, said shape memory alloy wire causing said latch to disengage from said notch when a current is applied to said shape memory alloy wire, the current causing said shape memory alloy wire to change shape, a wire mount, wherein said shape memory alloy wire has a first end and a second end, and said shape memory alloy wire extends from said wire mount proximate said first end, wraps around said latch post, and is attached to said wire mount proximate said second end, wherein, when said lockout device is in said open position, said engagement tab and said stop tab are unaligned in the direction of travel of said actuator carriage as it moves from said rest position to said actuated position, and, when said lockout device is in said closed position, said engagement tab and said stop tab are aligned in the direction of travel of said actuator carriage as it moves from said rest position toward said actuated position, the alignment of said engagement tab and said stop tab preventing the movement of said actuator carriage from said rest position to said actuated position due to contact between the engagement tab and stop tab.