Twinhammer nozzle wedge

A spray dust suppression system for a percussive tool having a first longitudinal axis, the spray dust suppression system comprising:

• a spray nozzle;
• a nozzle holder body having an arcuate surface that engages around an exterior surface of the percussive tool, and a pocket opposing the arcuate surface that receives the spray nozzle, wherein the pocket is angled inwardly relative to a longitudinal axis of the arcuate surface;
• and
• at least one fastener that is configured to both maintain engagement between the nozzle holder body and the exterior surface of the percussive tool, and retain the spray nozzle within the pocket;
• the spray nozzle being configured to spray a cone-shaped stream of fluid, wherein the spray nozzle is press-fitted in the pocket;
• wherein the nozzle holder body has a radial wall at an end of the pocket and an open end opposite the radial wall, and the spray nozzle has a radial surface that engages against the radial wall in the longitudinal direction;
• and
• wherein the radial wall defines a notch having a radius that is less than a radius of the pocket, and the spray nozzle has a tip end received by the notch, and wherein the radial wall has a nozzle retaining surface that is engagable with the radial surface of the spray nozzle, and an end surface that opposes the nozzle retaining surface and is engageable with a corresponding radially protruding surface of the percussive tool.

A nozzle holder for affixing a spray nozzle to a percussive tool, the nozzle holder comprising:

• an arcuate wall having a first arcuate surface engageable around the percussive tool, and a second arcuate surface opposing the first arcuate surface;
• a protruding body that protrudes radially outwardly from the second arcuate surface relative to a longitudinal axis of the arcuate wall;
• and
• a concave recess that is formed in the protruding body and receives the spray nozzle, wherein the concave recess is angled inwardly toward the longitudinal axis of the arcuate wall;
• wherein the nozzle holder has a first end and a second end, the arcuate wall extends between the first end and the second end, and the protruding body is angled inwardly toward the longitudinal axis from the second end toward the first end;
• wherein the protruding body has a radial wall located at the first end of the nozzle holder, an end surface opposite the radial wall at the second end of the nozzle holder, and a semi-cylindrical wall that extends axially between the radial wall and the end surface;
• and
• wherein the radial wall has a radial surface that extends perpendicularly relative to the longitudinal axis, and the end surface is angled outwardly from the longitudinal axis toward the first end of the nozzle holder, wherein the radial wall has a nozzle retaining surface that opposes the radial surface and defines a first end of the concave recess, the nozzle retaining surface being perpendicular to the semi-cylindrical wall.