Air valve for portable paint gun

Fluid sprinkling – spraying – and diffusing – Including supplemental gas shaping or shielding jet – Plural sets of gas jet orifices

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Details

239415, 239528, 239583, 251333, B05B 126, B05B 708

Patent

active

050783238

ABSTRACT:
An improved control shaft seal and air valve for a portable paint gun with the seal having a radial clearance with the shaft except at a shaft sealing surface of limited axial length. The shaft seal has a conical surface radially outward of the shaft sealing surface to provide a sealing surface and also to provide transfer of axial forces at that surface to a radial direction to provide a force to urge the shaft sealing surface against the control shaft. A second conical surface of the seal provides for retention of the seal on an air valve spring when the paint gun is disassembled. An improved air valve for portable paint guns is also disclosed having a rigid axial hub and radial support carrying a relatively flexible rim portion adapted to engage a tapered seating surface in the gun.

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Handbook: Installation, Operation and Service with Parts Breakdown; Airmix Manual Spray Gun; Model MR-Part No. 029.730.300 Handbook No. 999.100.001, Kremlin, Incorporated, Addison, IL, Mar. 14, 1986.
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