Electrostatic paint spray apparatus having rotary spray head wit

Details Electrostatic paint spray apparatus having rotary spray head wit Electrostatic paint spray apparatus having rotary spray head wit

1978-12-14

1980-07-29

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Electrostatic type

With impeller

23921425, 239223, 239224, 277 53, 308 363, B05B 504, B05B 310, F16J 1540

Patent

active

042147085

ABSTRACT:
Electrostatic paint spray apparatus having rotary spray head with an air seal. To prevent paint or solvent from entering antifriction bearings, the shaft rotating at high speed is provided with an air seal in an intermediate zone between the bearings and the spray head. Air from a source of compressed air communicating with inlet flows through channel into groove and from there via passageways into the annular air feed chamber. Air leaves the feed chamber between depending lip and shaft, preventing the entry of paint or solvent, and operating even when the apparatus is not spraying. Air is throttled in the other direction through the air flow path to an expansion chamber and then is vented to the atmosphere via vents without contaminating the bearings.

REFERENCES:
patent: 2386898 (1945-10-01), Karassik
patent: 2584973 (1952-02-01), Andermatt

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