Patent ID: 7191966
Filing Date: 2007-03-20
Classification: B05B

Abstract:
1. A universal powder coating tip/nozzle for powder coating guns, comprising: a) a smooth, elongated flexible non-stick hose having an interior surface and an exterior surface, an inlet disposed at one end of said hose and a powder application outlet tip disposed at an end opposite from said inlet, an entire length of said hose being defined between said inlet and said powder application outlet tip; b) an adapter interposed between and in fluid communication with said hose inlet and a powder coating gun, said adapter permitting attachment of said hose to said gun; c) an electrical contact point located at said hose inlet, said electrical contact point permitting electrical connection to an electrical contact point located on said adapter, wherein said adapter conducts electricity from said powder coating gun through said adapter and to said electrical contact point located at said hose inlet; d) a powder charging electrode located at said powder application outlet tip of said hose; said powder charging electrode charging powder that exits said powder application outlet tip; and e) a spring having a first end proximate said hose inlet and a second end proximate said powder application outlet tip, said spring having a spiral arrangement and running said entire length of said hose and said spring being inlaid under a layer of non-stick material, said non-stick material defining said interior surface of said hose to thereby prevent powder build-up within said hose, said first end of said spring being electrically connected to said electrical contact point located at said hose inlet, and said second end of said spring being electrically connected to said powder charging electrode, wherein said spring conducts powder charging current from said adapter to said powder charging electrode, and wherein said spring also provides structural reinforcement for said hose.