Fluid sprinkling – spraying – and diffusing – Including supplemental gas shaping or shielding jet – Plural sets of gas jet orifices
Reexamination Certificate
2002-03-14
2004-09-21
Ganey, Steven J. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Including supplemental gas shaping or shielding jet
Plural sets of gas jet orifices
C239S290000, C239S298000, C239S525000, C239S600000
Reexamination Certificate
active
06793155
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a spray gun, and more particular to a spray gun with an air pressure stabilizer.
2. Description of the Prior Art
Conventional spray guns are convenient and simplifying painting job. However, the air output pressure is too strong, which causes the spraying objects to bounce back and floating in the air, which pollutes the air and ruins the environment. Take one of the conventional arts as an example, as shown in
FIGS. 4 and 5
, the front end of a spray gun of the air output structure comprises a ring A, a nozzle B, a spray head C and a nut D. The nozzle B is located at the center of the front end of the spray gun. The inner top edge of the spray gun E has a wind hole E
1
and air hole E
2
. The nozzle B comprises a circular rim B
1
having air holes B
2
thereon. The ring A is in a bowl shape having a rim A
1
at the narrow side with air holes A
2
. The spray head C having a pair of air outlet C
1
on the outer surface is secured with a nut D and interconnected with air passages C
2
. The spray head C has a spray hole C
3
at its center portion, and a pair of air holes C
4
at respective sides. When operating, the high pressure air goes through the wind hole E
1
and the air hole E
2
of the spray gun E, and spray out from the air holes A
2
of the ring A and the air holes B
2
of the nozzle B.
However, to operate the spray gun, the wind hole E
1
has to be closed to collect the high pressure air in an air chamber, and the air is blown out through the spray hole C
3
of the spray head C, the high speed and pressure causes painting objects to fly and to spread all over the space, that causes environmental pollution and is harmful to health.
SUMMARY OF THE INVENTION
It is the primary object of the present invention to provide a spray gun pressure stabilizer, which outputs a stabilized air pressure to evenly apply paint object on the surface.
It is another object of the present invention to provide a spray gun pressure stabilizer, which corresponds to the environment specification.
It is a further object of the present invention to provide a spray gun pressure stabilizer, which is cost effectiveness in manufacture.
REFERENCES:
patent: 4392617 (1983-07-01), Bakos et al.
patent: 4712739 (1987-12-01), Bihn
patent: 4917300 (1990-04-01), Gloviak et al.
patent: 5088648 (1992-02-01), Schmon
patent: 5409162 (1995-04-01), Sickles
Ganey Steven J.
Rosenberg , Klein & Lee
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