Spray nozzle having air shaping orifices and reversing structure for cleaning
AssigneeGraves Spray Supply, Inc.
InventorsThomas A. Hedger, Nicholas P. Chagaris
Life of this patent
Estimating the term…
Abstract
A spray nozzle includes a central resin nozzle and peripheral catalyst nozzles as well as air nozzles designed to emit streams of air to shape the flow of the resin material from the resin nozzle. The resin nozzle is mounted on a rotary fitting allowing the direction of the resin nozzle to be reversed 180.degree. to permit cleaning of the resin nozzle. The air nozzles consist of passageways through the rotary fitting that are aligned with respective sources of air pressure when the rotary fitting is positioned to permit spraying of resin through the resin nozzle.
Claims19
A spray nozzle, comprising:
- a) a body having a first passageway connectable to a first source of fluid and a second passageway connectable to a second source of fluid;
- b) a rotary fitting rotatably received in said body and carrying first and second nozzles;
- c) said rotary fitting being rotatable between first and second orientations, whereby in said first orientation, said first nozzle is aligned with said first passageway in a forward facing direction of said first nozzle and said second nozzle is aligned with said second passageway, and whereby, in said second orientation, said first nozzle is aligned with said first passageway in a rearward facing direction of said first nozzle to facilitate back-flushing of said first nozzle.
A spray nozzle attachable to a spray gun and comprising:
- a) a body having a first passageway connectable to a source of liquid resin and a second passageway connectable to a source of pressurized air;
- b) a rotary fitting rotatably received in said body and carrying first and second nozzles, said second nozzle comprising a narrow conduit through said rotary fitting;
- c) said rotary fitting being rotatable between first and second orientations, whereby in said first orientation, said first nozzle is aligned with said first passageway in a forward facing direction of said first nozzle and said second nozzle is aligned with said second passageway, and whereby, in said second orientation, said first nozzle is aligned with said first passageway in a rearward facing direction of said first nozzle to facilitate back-flushing of said first nozzle while said narrow conduit is misaligned with respect to said second passageway.
Dependencies are inferred from the claim text.