Dispenser manually operated protective cap provided with means to lock the drive.

Dispenser with a computer operable manual release (84), especially for the evacuation of a load in sprayed on one or a few strokes, with a housing (12) having an operator interface (14) to place over at least one finger and a discharge section (13) with an outlet (44), with a pushbutton (80) provided next to the dispenser (11) removed from the outlet (44) for driving the discharge equipment ( 84) and with a removable protective cap (90) before the unloading maneuver, which covers the outlet (44), characterized in that the protective cap (90) has locking elements (98) for block actuating button (80).