Spray paint gun

Fluid sprinkling – spraying – and diffusing – Including supply holder for material – Fluid pressure discharge means

Patent

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Details

239373, 239375, 2394164, B05B 732

Patent

active

052518221

ABSTRACT:
A spray paint gun has an air passage interconnecting an air chamber of the gun body and the interior of a paint container, and a valve device for opening and closing the air passage. The gun body has a blind bore connected to the air passage. The air passage has a first section extending from the air chamber to the blind bore, a second section extending from the blind bore to the exterior of a connecting portion, and a third section formed in the wall of a tubular member which is connected to the gun body. The third section of the air passage intercommunicates the second section of the air passage and the interior of the container. The valve device includes a threaded bolt screwed to the blind bore. A threaded rod is threaded through a central hole of the threaded bolt. The threaded rod has a first end connected with a knob and a second end extending out of the threaded bolt into the blind bore of the gun body. The second end of the threaded rod has a central receiving blind hole. A coiled spring member is received in the central receiving blind hole. A disc has a central shaft which is inserted into the central receiving blind hole of the threaded rod.

REFERENCES:
patent: 968210 (1910-08-01), Urbach
patent: 1066263 (1913-07-01), Von Dohn
patent: 2239987 (1941-04-01), Bransen et al.
patent: 2880940 (1959-04-01), Briggs
patent: 2959358 (1960-11-01), Vork
patent: 3722818 (1973-03-01), Hayasaki et al.
patent: 4901925 (1990-02-01), Blake

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