Fluid sprinkling – spraying – and diffusing – With cleaning means – drip collecting – waste disposal or soil... – Nozzle cleaner – flusher or drainer
Patent
1987-07-24
1988-07-19
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
With cleaning means, drip collecting, waste disposal or soil...
Nozzle cleaner, flusher or drainer
2392883, 239600, B05B 1502
Patent
active
047579471
ABSTRACT:
There is disclosed a spray tip for airless spraying in which a turret member, which carries the tungsten carbide spray tip, is rotatably mounted in a spray tip housing and is removably and interchangeably received in the housing. The turret member is provided with a dynamic seal which has a seal formed of a very hard plastic, preferably an acetal copolymer that is filled with a reinforcement material, preferably with glass fibers. The hard reinforced plastic resists cold flow and extrusion while, nevertheless, providing a resilient seal that is very effective, even when spraying very low viscosity liquids. Longevity of this seal and ease of rotation of the turret member while maintaining full sealing pressure on the seal is achieved by the cooperative use of a resiliently biased piston support for the seal. The seal is secured to the piston to form a seal subassembly and this subassembly is resiliently biased against the cylindrical face of the turret member by a compression spring captured between the upstream end of the piston and the end face of the spray gun barrel onto which the spray tip is secured.
REFERENCES:
patent: 1954018 (1934-04-01), Miller
patent: 3118650 (1964-01-01), Cooper et al.
patent: 3202360 (1965-08-01), O'Brien
patent: 3228652 (1966-01-01), Antrim
patent: 3272473 (1966-09-01), Veit et al.
patent: 4479513 (1984-10-01), Koch et al.
patent: 4484707 (1984-11-01), Calder
Forman Michael J.
Kashnikow Andres
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