Electrostatic spray gun

Details Electrostatic spray gun Electrostatic spray gun

1989-03-29

1990-03-27

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Electrostatic type

With automatic safety feature

239707, 361227, 361228, 439840, B05B 500

Patent

active

049113674

ABSTRACT:
A continuous electrical connection between a high voltage power source and a paint charging electrode in an electrostatic spray gun. The electrode is mounted on a valve needle which is reciprocated by a trigger mechanism as the spray gun is operated. A novel spring establishes and maintains the electrical connection from a stationary contact on the gun barrel to the moving valve needle. The spring may be mounted on a spacer tube mounted coaxially about the valve needle. The spacer tube can move in an axial direction to exert a force on a seal between the barrel and the valve needle without affecting the electrical connection.

REFERENCES:
patent: 3077523 (1963-02-01), Clewes
patent: 4335851 (1982-06-01), Hastings
patent: 4598871 (1986-07-01), Hartle
patent: 4721255 (1988-01-01), Lind

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