Patent ID: 7748647

Claim:
Manual spraying device comprising: a push-button that can be actuated manually, said push-button comprising a peripheral side wall extend longitudinally along a central axis, and a spray nozzle, said side peripheral wall being integral with the push button and delimiting a housing for receiving the spray nozzle, said spray nozzle having an inner chamber adapted to receive a non-gaseous fluid product under pressure and delimited towards the outside by a perforated front wall, said front wall being flat and extending perpendicularly to the central axis, said front wall being part distinct from said peripheral side wall, directly secured to said peripheral side wall of the push-button; a reservoir for the fluid product to be sprayed; and a dispensing device that can be mechanically actuated by the push-button and adapted to transfer the fluid product from the reservoir to the inner chamber of the spray nozzle; characterized in that the front wall has a plurality of calibrated holes, each having a diameter of between 1 and 100 μm, the diameter of each hole not differing from a mean of the diameters of the various holes by more than 20%.