U.S. patent number 3,780,950 [Application Number 05/223,978] was granted by the patent office on 1973-12-25 for paint accommodating modules adapted for use with spray guns.
Invention is credited to William B. Brennan.
United States Patent |
3,780,950 |
Brennan |
December 25, 1973 |
PAINT ACCOMMODATING MODULES ADAPTED FOR USE WITH SPRAY GUNS
Abstract
A paint containing module comprises a reservoir portion for
containing a liquid such as paint. The reservoir portion is
fabricated from a flexible transparent material and this portion
communicates via an aperture with a liquid discharge portion having
an arcuate arm with a liquid passageway, the passageway
communicates with the reservoir portion at one end of the arm and
with a tip portion at the other end of the arm. When the tip is
held in close proximity to the nozzle of a spray gun the liquid is
drawn via the passageway and discharged.
Inventors: |
Brennan; William B. (Edison,
NJ) |
Family
ID: |
22838776 |
Appl.
No.: |
05/223,978 |
Filed: |
February 7, 1972 |
Current U.S.
Class: |
239/306; 222/215;
239/309; 239/328; 222/81; 239/307; 239/314; 222/541.2 |
Current CPC
Class: |
B05B
7/2467 (20130101) |
Current International
Class: |
B05B
7/24 (20060101); B05b 007/08 (); B05b 007/24 () |
Field of
Search: |
;239/302-307,309,314,328,340,341,345,346 ;222/81,215,541 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
1,114,691 |
|
May 1968 |
|
GB |
|
145,901 |
|
Jun 1931 |
|
CH |
|
515,117 |
|
Nov 1952 |
|
BE |
|
324,839 |
|
Feb 1930 |
|
GB |
|
Primary Examiner: Ward, Jr.; Robert S.
Claims
What is claimed is:
1. In a spray gun adapted to be used with a source of pressurized
gas, said gun of the type having a cylindrical barrel portion with
a central aperture therethrough, said aperture communicating at an
exit end of said barrel with a nozzle and at an entrance end of
said barrel with a valve mechanism adapted to be manually actuated
to permit pressurized gas to flow through said central aperture to
be discharged at said nozzle end under relatively high velocity, in
combination therewith apparatus for use with said gun to provide
for dispersement of a liquid by means of such high velocity gas,
comprising:
a. holder means positioned on the bottom of said barrel of said gun
near said exit end, and
b. a cylindrical liquid container, said container having a bottom
liquid reservoir portion fabricated from a flexible, transparent
material, and a top liquid discharge portion communicating with
said reservoir, said top liquid discharge portion comprising a
first collar means adapted to coact with and be rigidly held by
said holder means, and second means comprising an outwardly
extending arcuate arm with an aperture therein communicating at one
end with said reservoir portion and at said other end with a tip
portion of said arm, said aperture being of a substantially smaller
diameter than said reservoir portion to permit said liquid to be
drawn into said aperture by capillary action, said arcuate arm
positioned by said collar and said holder means in a manner such
that said tip of said arm is positioned in close proximity to said
nozzle, with said cylindrical liquid container positioned beneath
said high velocity air stream, whereby when high velocity gas is
being emitted by said nozzle, said liquid is drawn from said
reservoir and dispersed, said high velocity stream causing said
liquid to be withdrawn from said reservoir due to said capillary
action and the attendant compression of said flexible
container.
2. The apparatus according to claim 1 wherein said holder means
when coacting with said collar means causes said container to be
positioned at an acute angle with respect to the main axis of said
barrel.
3. The apparatus according to claim 1 wherein said bottom liquid
reservoir portion of said container includes a series of pleats on
the surface thereof forming an accordian-like structure capable of
compressing as said liquid is drawn from said reservoir to thereby
aid in discharging liquid.
4. The apparatus according to claim 3 further including
a. a protective cylindrical cage adapted to surround said
accordian-like reservoir portion, said cage fabricated from a rigid
material and dimensional to permit easy compression of said
accordian-like portion, while serving to prevent a user from
inadvertently compressing the same to thereby discharge said
liquid.
5. The apparatus according to claim 2 further comprising:
a. adjustment means pivotally coupling said holder means to said
barrel portion of said spray gun to enable a user to select any one
of a plurality of said acute angles.
6. The apparatus according to claim 1 further comprising:
a. a stopper assembly having a grasping portion and an elongated
tip portion of a diameter slightly less than the diameter of said
aperture of said arcuate arm for insertion therein to prevent any
liquid from emanating from said reservoir portion of said container
when the same is not being used.
7. In a spray gun adapted to be used with a source of pressurized
gas, said gun of the type having a cylindrical barrel portion with
a central aperture therethrough, said aperture communicating at an
exit of said barrel with a nozzle and at an entrance end of said
barrel with a valve mechanism adapted to be manually actuated to
permit pressurized gas to flow through said central aperture to be
discharged at said nozzle end under relatively high velocity, in
combination therewith apparatus for use with said gun to provide
for dispersement of a liquid by means of such high velocity gas,
comprising:
a. holder means positioned on the bottom of said barrel of said gun
near said exit end,
b. a cylindrical liquid container, said container having a bottom
liquid reservoir portion fabricated from a flexible, transparent
material, and a top liquid discharge portion communicating with
said reservoir, said top liquid discharge portion comprising a
first collar means adapted to coact with and be rigidly held by
said holder means, and second means comprising an outwardly
extending arcuate arm with an aperture therein communicating at one
end with said reservoir portion and at said other end with a tip
portion of said arm, said aperture being of a substantially smaller
diameter than said reservoir portion to permit said liquid to be
drawn into said aperture by capillary action, said arcuate arm
positioned by said collar and said holder means in a manner such
that said tip of said arm is positioned in close proximity to said
nozzle, with said cylindrical liquid container positioned beneath
said high velocity air stream, whereby when high velocity gas is
being emitted by said nozzle, said liquid is drawn from said
reservoir and dispersed, said high velocity stream causing said
liquid to be withdrawn from said reservoir due to said capillary
action and the attendant compression of said flexible container,
and
c. a protective cylindrical cage adapted to surround said flexible
bottom liquid reservoir portion, said cage fabricated from a rigid
material and dimensioned to permit easy compression of said
reservoir portion, while serving to prevent a user from
inadvertently compressing the same to thereby discharge said
liquid.
Description
This invention relates to paint containing devices and, more
particularly, to such devices adapted for use with spray guns of
the type using compressed gas.
BACKGROUND OF INVENTION
The prior art is replete with a number of devices for holding or
containing paint. Many of these devices are further adapted to be
utilized in conjunction with an air or pressurized gas spray gun.
Such prior art devices generally include paint containers which may
be fitted onto a gun and used in conjunction with the gun to spray
paint by operating under gravity feed principles and otherwise.
Certain of these paint containers utilize narrow tubes which are
directed into the paint accommodating portion of the container and
function to draw the paint up into an accompanying nozzle. Other
devices utilize a common chamber and nozzle for both air and paint.
This common chamber or nozzle is then used to accommodate both the
paint and the compressed air to therefore permit controlled
spraying of an object to be painted. Such devices, in general,
suffer from many disadvantages.
The devices that use the common chamber assembly are subjected to
clogging, require constant maintenance and care to provide reliable
operation. Other devices require complicated mechanical structures
to assure that the paint and the spray gun are controlled by a
common actuated valve assembly.
Another major disadvantage of prior art containers used with
pressurized guns is the fact that the mechanism for coupling the
container to the gun is relatively complicated, thus requiring a
great deal of time and effort on behalf of the operator to enable
him to change from one paint color to another color as desired.
In view of these and other disadvantages, there is the common
advantage of spray devices in general which the present invention
is also concerned with. Namely, these devices provide an overall
better paint surface to an object as compared to the use of brushes
and are, in general, easier and quicker.
The advantages of spray gun use are further envisioned and
multiplied in commercial use, model building or hobbyest kits. Such
models may many times be fairly small and yet the desire of the
model builder is to produce an accurate replica of a full scale
counterpart. Inherent with the building of any model is operation
with miniature versions. The use of spray paints in providing an
optimum paint finish to such model is desirable. However, the
amount of paint used and the number of different colors which one
may require are more fundamental problems than the color format of
the actual counterpart.
It is therefore obvious that to adequately paint such models one
needs a much smaller amount of paint than is normally necessary,
plus one would further desire to have the ability to use a spray
gun allowing easy interchangeability of paint modules using
inexpensive and uncomplicated structures.
SUMMARY OF INVENTION
It is therefore an object of this invention to provide a compact
paint accommodating module particularly adapted for use with a
spray gun. The module and attachment for the spray gun are
particularly suited for use in model and hobby applications,
although various other uses can be contemplated as well.
According to a preferred embodiment of the invention, a
conventional pressurized air gun is adapted to be used with a paint
containing module, which module comprises a first cylindrical paint
reservoir portion generally fabricated from a transparent,
flexible, plastic substance. A front end of the cylindrical portion
is adapted to coact with a liquid discharge portion of the module
which generally is of an arcuate configuration and having a paint
accommodating aperture. A module holder is affixed to the spray gun
near the nozzle end of the gun to enable the paint module to be
placed in the holder with the tip of the arcuate portion of the
module held in close proximity with the nozzle of the air gun. When
pressurized or compressed gas or air is released from the air gun,
the force of the air serves to draw the paint via the aperture from
the reservoir. The configuration requires no feed tube arrangement
coacting with the paint in the container and does not require a
pressurized capsule and hence eliminates many disadvantages
inherent with the prior art configurations.
BRIEF DESCRIPTIONS OF DRAWINGS
FIG. 1 is a side elevational view partially in cross section of an
air gun, holder and paint module assembly according to this
invention;
FIG. 2 shows a perspective view of the module holder of FIG. 1;
FIG. 3 shows a perspective view of the air-gun trigger arrangement
shown in FIG. 1;
FIG. 4 shows a perspective view of the paint module of FIG. 1 in
conjunction with a stopper arrangement;
FIG. 5 shows a partial perspective view of the stopper being
accommodated by the liquid passageway of the paint module;
FIG. 6 sohows a cross sectional perspective view of an alternate
embodiment of a holder assembly;
FIG. 7 shows a side elevational view partially in cross section of
an air gun and paint module assembly;
FIG. 8 shows a perspective view of the module of FIG. 7;
FIG. 9 shows a perspective view of a protective cage device which
may be used in conjunction with the assembly shown in FIG. 7.
DETAILED DESCRIPTION OF DRAWINGS
Referring to FIG. 1, there is shown an air gun 10. The air gun 10
is relatively conventional and has an inlet nozzle portion 11 and
an outlet nozzle portion 17. The inlet portion 11 is adapted to be
coupled to a source of compressed air. The spray gun or air gun 10
has a barrel portion 16 which has a relatively narrow center
aperture 20 which communicates with the compressed air inlet
portion 11 of the gun through a suitable valve assembly 22. The
valve assembly 22 may be a conventional type and is trigger
actuated. There is shown a trigger mechanism 15 which, when
depressed, opens the valve, thus causing compressed air to be
directed through the center aperture 20 in the barrel portion 16 of
the gun. Hence, when the trigger 15 is depressed, this permits
relatively high velocity air to emerge from the nozzle portion 17
of the gun. This particular feature of air guns is relatively
universal and general, as many such devices operate accordingly.
More specifically, a handle portion 12 of the gun enables a user to
grip the same and direct the gun accordingly. The handle has an
aperture 14 therethrough which can be coupled by means of a
suitable receptacle to a source of compressed air. The aperture 14
communicates directly with the air inlet portion 11 and with a
first aperture 19. Aperture 19 communicating directly with the
valve assembly 22. When the trigger 15 is actuated or moved towards
the barrel portion of the gun 10 the valve plug 18 is forced
upwards thus permitting high velocity air to pass from aperture 19
to aperture 20 and thence for discharge at the nozzle 17.
The gun is further adapted to accommodate a paint module assembly
according to this invention. A holder 23 is positioned or affixed
to the barrel 16 of the gun, closer to the air exit nozzle 17 and
has an aperture or other arrangement capable of accommodating a
paint module assembly 30. The paint module assembly 30 is generally
of a cylindrical configuration and has a paint accommodating
portion 31 which is preferably fabricated from a clear, soft
transparent plastic. This paint accommodating section or paint
reservoir 31 enables the user to readily ascertain the color of the
paint, the condition of the paint and so on. The module further has
a front liquid discharge portion which generally comprises a cap or
cover member 33 including an arcuate portion 34 having a central
paint accommodating aperture. According to the arrangement as shown
in the figure, the arcuate portion 34 of the paint module 30 is
directed to be in close proximity with the nozzle portion 17 of the
air gun 10. It is further noted that the paint nozzle 30 has no
tube directed into the paint reservoir, as the action of the device
provides a capillary action due to the narrow diameter of the paint
accommodating aperture associated with the paint module. Further
action inherent in the forces produced by the compressed air stream
emanating from the nozzle acts to draw the paint from the module by
causing the flexible portion 31 to compress.
This flexible nature of the soft plastic thereby providing
compression during operation, further forces the paint into the
arcuate arm's 34 aperture, hence permitting the same to be easily
sprayed upon an object. The paint accommodating module as shown in
the figure is approximately between 1 to 4 inches long and can hold
a few ounces of paint, the quantity of paint being sufficient for
most model builder's purposes. The holder assembly 23 may be a
simple bracket device having an aperture of a sufficient diameter
to coact with a collar located on the cover or cap portion 33 of
the paint accommodating module.
Alternate embodiments for brackets and so on should be obvious to
those skilled in the art, while the specification will describe
certain other holder arrangements as well.
Referring to FIG. 2 the module holder assembly 23 is shown in
greater detail. The assembly has a central aperture 26 dimensional
to accommodate a collar assembly of the paint module 30 of FIG. 1.
There are a series of apertures on the side brackets of holder 23,
noted as 25 of FIG. 1, to enable riveting, bolting or otherwise to
the barrel portion of the gun 10.
FIG. 3 shows a perspective view of the trigger assembly 15, which
is pivotally mounted on the barrel portion of the gun.
FIG. 4 shows a paint accommodating module, a paint accommodating
reservoir 40 is fabricated from a clear transparent, plastic
material which is generally flexible in nature. The transparent
nature of this reservoir portion 40 allows a user to view the
contents of the liquid contained therein both as to color and
consistency. A plurality of agitator balls 41 are also located
therein to enable mixing of the paint if necessary. The top opened
portion of reservoir 40 communicates with a liquid discharge
section 42. The section 42 has a flange about the bottom adapted to
be force-fitted in to the top opening of the reservoir portion 40.
Also shown on the liquid discharge section 42 is a collar
arrangement of sufficient diameter to coact with and be held by the
aperture 26 of the holder assembly 23 of FIG. 2.
The liquid discharge portion 42 has an arcuate arm 43 with a
central paint accommodating aperture. The aperture communicates at
one end with the open top of the reservoir 40 via the internal
hollow of member 42, and at a tip end represented by the cut-line
shown on the Figure. The liquid discharge portion 42 may be
fabricated from a plastic material and integrally formed with a
stopper assembly, comprising a head end 44 and an elongated
piercing rod 45.
The piercing rod 45 is of a diameter to permit insertion of the
same into the paint accommodating passageway of the arcuate arm 43.
The user by means of a scissor or other cutting tool separates the
stopper assembly at the cut line when the paint modules is to be
used.
FIG. 5 shows the stopper assembly inserted into the arcuate arm's
aperture 45 when the module is not being used, thus preventing
paint from accidentally or otherwise being discharged during module
non-use.
FIG. 6 shows an alternate holder arrangement 50. The holder 50 has
two arms as 51 both being held of the general configuration shown
in FIG. 2. The front portion of the holder 50 has a central
aperture 53 for accommodating the collar assembly 42 of module of
FIG. 4 for example.
There is located two slots as 52 on opposite sides of the front
surface of holder 50. The central aperture communicates with the
slots 52 via three apertures, one on each side and one on the
bottom. The paint module is thereby inserted into aperture 53 with
the collar assembly located within and surrounded by the front of
assembly 50. A wire spring member 54 is slideably inserted into the
slots 52. The wire spring member has protruding portions on the
side and bottom surfaces, which portions communicate via the
apertures in the holder to secure the module between the collar
portions to thereby prevent movement of the same when properly
positioned in the holder.
FIG. 7 shows an alternate embodiment of an air gun and paint
accommodating module 85. The air gun has a barrel portion 74, a
handle portion 70, including therein a passageway 72 for compressed
air. A needle valve 71 is shown communicating with passageway 72
and by adjusting the set screw mechanism associated with valve 71
one can thereby control air flow. The valve assembly 73 is actuated
by the trigger mechanism 76 and is similar both in function and
structure to the assembly shown in FIG. 1, to thus permit
compressed air to flow from passageway 72 to passageway 75 in the
barrel portion 74 of the gun. The high velocity air is thusly
discharged at the nozzle exit 81 of the gun.
A holder assembly 80 is shown pivotally mounted to the gun via a
pivot assembly 78. The bracket 80 is L-shaped and has a set screw
77 located on the top flange of the L assembly. The set screw or
adjustment means 77 coacts with the barrel portion and by
adjustment of the same causes the holder 80 to move about an arc to
assure positionability of the tip of the paint module 85 with the
tip of the gun's nozzle 81.
A spring 79 is used to bias the holder assembly and therefore
firmly secure the same in any one of the selected positions
afforded by the adjustment means 77.
The paint module 85 has an accordian-shaped reservoir section 86,
which is fabricated from a clear, flexible plastic. The accordian
reservoir section permits easier compressionability to further
assure uniform paint discharge.
A liquid discharge 87 portion of the module 85 has an arcuate
configuration with a paint accommodating passageway 88
communicating between the reservoir 86 and the tip end of the
arcuate section 87. A collar arrangement associated with the module
85 coacts with the holder bracket 80 and is retained thereby in a
manner as previously shown.
FIG. 8 shows a perspective view of the module of FIG. 7 showing a
flanged collar 94 and the bellows or accordian arrangement 90 of
the reservoir. The liquid discharge portion 91 is shown formed with
an integral stopper assembly comprising a grasping end 92 and an
elongated stopper means 93. The cut line is shown dashed.
FIG. 9 shows a protective cage assembly 96, which is fabricated
from a hard plastic or metal material and is cylindrical in shape
and of a diameter selected to accommodate within the hollow
confines thereof, the accordian portion or flexible reservoir
portion of the paint accommodating module. The cage 96 has
apertures 97 along the surface thereof to permit the user to easily
view the contents of the module as above described.
Certain possible variations of the invention have already been
described and many others lie within the skill of those in the art.
All such variations are part of the invention, except as limited by
the following claims.
* * * * *