Airless spray gun needle assembly

Details Airless spray gun needle assembly Airless spray gun needle assembly

1993-05-03

1994-09-06

Nilson, Robert G.

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

239583, 239DIG19, 251322, 251323, 251368, B05B 702

Patent

active

053441206

ABSTRACT:
A needle assembly for an airless spray gun is provided with a needle which is centerless ground and electropolished to greatly increase life. Further life enhancements are gained by use of a plastic needle bushing in the needle clamp and provision of a specific length to diameter geometry for the needle yields enhanced life as well.

REFERENCES:
patent: 3380705 (1968-04-01), Enssle
patent: 3469825 (1969-09-01), DuBois
patent: 3557824 (1971-01-01), Krehbiel
patent: 4166579 (1979-09-01), Beise
patent: 4560109 (1985-12-01), Teruyuki et al.
patent: 4934603 (1990-06-01), Lasley
patent: 4959159 (1990-09-01), Mattson
patent: 5050804 (1991-09-01), Svendsen et al.
patent: 5078322 (1992-01-01), Torntore
patent: 5085370 (1992-02-01), Smith
patent: 5094402 (1992-03-01), Perret

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