Paint nozzle module for a paint spraying device

A paint spraying device for creating a paint spray jet, the paint spraying device comprising:

• a body having a front end and a back end, wherein the front end is configured to connect to the back end;
• a paint container;
• a paint nozzle assembly removably couplable to the body, the paint nozzle assembly including a needle configured to move between a closed position and an open position, a compression spring, and a seal;
• a tension spring in operative communication with the compression spring, wherein a spring force of the tension spring is greater than a spring force of the compression spring such that the needle is actuated to the closed position when the paint nozzle assembly is coupled to the paint spraying device;
• and
• a trigger in operative communication with the tension spring, wherein the trigger, when actuated, compresses the tension spring such that the needle is actuated to the open position when the paint nozzle assembly is coupled to the paint spraying device;
• wherein the paint nozzle assembly includes a paint chamber and an antechamber;
• wherein the seal includes a first side facing the paint chamber and a second side facing the antechamber, the second side opposite the first side;
• wherein the first side facing the paint chamber includes a radially inward edge configured to contact the needle;
• wherein the second side facing the antechamber includes a radially outward edge configured to contact the paint nozzle assembly;
• wherein, when the needle is in an open position, the radially inward edge of the first side is positioned upstream of the radially outward edge of the second side;
• wherein the compression spring is positioned between the seal and a rear end of the needle;
• and
• wherein the spring force of the compression spring is configured to actuate the needle to the open position.

A paint spraying device for creating a paint spray jet, the paint spraying device comprising:

• a body having a front end and a back end, wherein the front end is configured to connect to the back end;
• a paint container configured to connect to the front end;
• a paint nozzle assembly configured to be disposed between the front end and the back end, the paint nozzle assembly including a needle configured to move between a closed position and an open position, a nozzle body, a compression spring, and a membrane seal;
• a tension spring in operative communication with the compression spring, wherein a spring force of the tension spring is greater than a spring force of the compression spring such that the needle is actuated to the closed position when the paint nozzle assembly is coupled to the paint spraying device;
• and
• a trigger in operative communication with the tension spring, wherein the trigger, when actuated, compresses the tension spring such that the needle is actuated to the open position when the paint nozzle assembly is coupled to the paint spraying device;
• wherein the nozzle body comprises a nozzle opening, a paint feed, and a needle guide;
• wherein a wall of the needle guide is inclined toward the compression spring;
• wherein the compression spring is clamped in place between the wall of the needle guide and a collar of the needle such that the spring force of the compression spring actuates the needle to an open position;
• wherein the membrane seal subdivides an interior space enclosed by the nozzle body into an antechamber and a paint chamber, wherein the interior space comprises a diverging portion;
• and
• wherein the membrane seal is connected fixedly to the needle.