Back to results
US 2025/0375782 A1Published application
Air cap for a fluid spray gun
AssigneeGraco Minnesota Inc.
InventorChristopher C. Wagner
Life of this patent
Estimating the term…
Abstract
A spray gun is configured to emit spray fluid and compressed air that impinges on the spray fluid to atomize the spray fluid. An air cap is configured to emit the compressed air. The air cap includes prongs that extend axially away from a fluid spray nozzle. Openings are formed through the prongs and are configured to emit compressed gas onto the fluid output to shape the fluid output. The openings are disposed in a stacked configuration and include openings offset from a spray axis.
Claims20
An air cap for a spray gun, the air cap configured to output compressed gas onto a spray fluid, the air cap comprising:
- a cap body having a central aperture therethrough, the central aperture disposed on a body axis of the cap body, the cap body further including a plurality of prongs extending from an outer side of the cap body;
- a plurality of face ports formed through the outer side;
- a first set of fan ports formed through an inner exterior side of a first prong of the plurality of prongs, the first set of fan ports including:
- a first inner fan port;
- and
- a first plurality of outer fan ports, the first plurality of outer fan ports disposed axially closer to a distal end of the first prong than the first inner fan port;
- and
- a second set of fan ports formed through an inner exterior side of a second prong of the plurality of prongs, the second set of fan ports including:
- a second inner fan port;
- and
- a second plurality of outer fan ports, the second plurality of outer fan ports disposed axially closer to a distal end of the second prong than the second inner fan port.
8 more elements
An air cap for a spray gun, the air cap configured to output compressed gas onto a spray fluid, the air cap comprising:
- a cap body having a central aperture therethrough, the central aperture disposed on a body axis of the cap body, the cap body further including a plurality of prongs extending from an outer side of the cap body;
- a plurality of face ports formed through the outer side;
- a first set of fan ports formed through an inner exterior side of a first prong of the plurality of prongs, the first set of fan ports including:
- a first inner fan port;
- a first outer fan port disposed axially closer to a distal end of the first prong than the first inner fan port, the first outer fan port circumferentially offset from the first inner fan port;
- and
- a second outer fan port disposed axially closer to the distal end of the first prong than the first inner fan port, the second outer fan port circumferentially offset from the first inner fan port;
- and
- a second set of fan ports formed through an inner exterior side of a second prong of the plurality of prongs, the second set of fan ports including:
- a second inner fan port;
- a third outer fan port disposed axially closer to a distal end of the second prong than the second inner fan port, the third outer fan port circumferentially offset from the second inner fan port;
- and
- a fourth outer fan port disposed axially closer to the distal end of the second prong than the second inner fan port, the fourth outer fan port circumferentially offset from the second inner fan port.
10 more elements
A spray gun comprising:
- a gun body;
- a nozzle formed in a nozzle body, the nozzle body at least partially disposed within the gun body, the nozzle configured to output spray fluid along a spray axis;
- a valve configured to control flow of the spray fluid through the nozzle;
- and
- an air cap mounted to the gun body, the air cap comprising:
- a cap body having a central aperture therethrough, the central aperture disposed on a body axis of the cap body, the cap body further including a plurality of prongs extending from an outer side of the cap body, wherein the nozzle body extends into the central aperture;
- a plurality of face ports formed through the outer side;
- a first set of fan ports formed through an inner exterior side of a first prong of the plurality of prongs, the first set of fan ports including:
- a first inner fan port;
- a first outer fan port disposed axially closer to a distal end of the first prong than the first inner fan port, the first outer fan port circumferentially offset from the first inner fan port;
- and
- a second outer fan port disposed axially closer to the distal end of the first prong than the first inner fan port, the second outer fan port circumferentially offset from the first inner fan port;
- and
- a second set of fan ports formed through an inner exterior side of a second prong of the plurality of prongs, the second set of fan ports including:
- a second inner fan port;
- a third outer fan port disposed axially closer to a distal end of the second prong than the second inner fan port, the third outer fan port circumferentially offset from the second inner fan port;
- and
- a fourth outer fan port disposed axially closer to the distal end of the second prong than the second inner fan port, the fourth outer fan port circumferentially offset from the second inner fan port;
- wherein the air cap is configured to output an atomizing compressed gas flow through an atomization opening disposed between the nozzle body and a portion of the cap body defining the central aperture;
- and
- wherein the air cap is configured to output a shaping compressed gas flow through the first set of fan port and the second set of fan ports.
18 more elements
Dependencies are inferred from the claim text.