KR20180097872A - Dual-headed paint spray wand - Google Patents

Abstract

The present invention relates to a dual-head paint spray wand having a central supply tube branching into two arms. According to the present invention, arms are spaced apart from each other so that paint overlaps when the paint is sprayed from the two arms, and the two arms are vertically offset from each other so that one arm can be ejected in front of the other arm.

Description

Dual-Head Paint Spray Wound {DUAL-HEADED PAINT SPRAY WAND}

The present application claims priority from U.S. Patent Application 62 / 199,174, filed July 30, 2015, entitled Dual-Head Paint Spray Wand, which is incorporated by reference in its entirety.

The present invention relates to a dual-head paint spray wand.

Since the cost of labor and materials is the two most important factors in the overall cost of a paint job, it is often the case that paint sprays are used to control these costs. However, the prior art of paint spray systems is highly inefficient, relying on a single paint spray tip often mounted on a single paint spray arm.

As a result, transmission efficiency is reduced due to excessive injection, resulting in a waste of 60% and a slow application rate. Thus, there is a need for a paint spray system that provides greater efficiency in terms of time and material savings than existing systems.

The present invention relates to a central paint supply which is attached to a standard non-air paint spray gun at one end and to a three-way manifold which branches the central supply tube to two arms each having a 90 [deg.] Offset bend It is a dual-head paint spray wand containing tubes. At the end of each arm is a standard threaded connection that can be attached to the end of each arm of a standard paint spray assembly including a tip guard, reversible paint spray tip, and on-off handle. The two arms are spaced apart to create an approximate 40% to 50% overlap between the paint spray panes. The overlap is designed to provide twice the coverage of the existing paint sprayer for each pass of the gun. The two arms are also vertically offset. This is done to avoid turbulence from occurring due to the impact of the spray fan.

In operation, the user of the present invention attaches the wand to the paint supply tubing of any standard non-air paint sprayer. The present invention draws paint from a paint sprayer through a central supply tube, into a 3-way manifold and into two arms, where the paint flows into a paint spray tip contained in two paint spray assemblies, It flows on the surface to be painted. Due to the 40% to 50% overlap in the paint spray pan created by the spacing of the two arms, the present invention allows the user to cover twice the surface area than using a sprayer with only one tip , Effectively reducing labor time by half. Because of the vertical offset between the tips, one spray is made ahead of the other, so the wand design prevents the spray pan from creating turbulence.

A method for painting a surface is also provided by the present invention. The method includes providing a dual paint spray wand having two spray fans with one spray fan overlapping 40-50% overlapping before the other. The method further comprises means for stopping the flow of paint spray from at least one of the spray fans using a shutoff valve.

Other features and advantages of the present invention will become apparent to those skilled in the art from the following detailed description taken in conjunction with the accompanying drawings.

The invention may be better understood by reference to the following drawings. The components of the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
1 is a front view of one embodiment of a paint spray wand of the present invention.
Figure 2 is a side perspective view of the paint spray wand of Figure 1;
Figure 3 is a top view of the paint spray wand of Figure 1;
4 is a front view of one embodiment of a paint spray wand of the present invention in which the paint spray assembly is removed from the arm of the wand.
Figure 5 is a side view of the paint spray wand of Figure 4;
Figure 6 is a top view of the paint spray wand of Figure 4;
7 is a front view of an example of a 3-way manifold of a paint spray wand of the present invention.
Figure 8 is a rear view of the 3-way manifold of Figure 7;
Fig. 9 is a side view of an example of the 3-way manifold of Fig. 7;
10 is a bottom view of the 3-way manifold of Fig. 7;
Figure 11 is a top view of a paint spray wand of the present invention showing the spray pan produced by each paint spray assembly in use.
Figure 12 is a front view of a paint spray wand of the present invention showing the spray pan produced by each paint spray assembly in use.

As shown in FIGS. 1-12, the present invention is directed to a dual-head paint spray wand 100. As described further below, the dual-head spray wand 100 of the present invention provides better coverage than traditional paint spray and reduces painting time.

1 is a front view of one embodiment of an implementation of a paint spray wand 100 of the present invention. As shown in Figure 1, the wand 100 is comprised of a central paint supply tube 102 of length between 2 "and 10 ", the paint supply tube having a threaded or wrench- Air paint spray gun (not shown) using the connection portion 104. [ The supply tube 102 is attached to the 3-way manifold 108 via a threaded connection 106 at the end opposite the attachment to the paint spray gun.

Way manifold 108 branches the central supply tube 102 into two arms 110a and 110b that are positioned upward and separated from each other at a predetermined distance. As shown in Figure 1, each arm may be connected to the manifold 108 by threaded connections 112a, 112b, or alternatively may be welded to the manifold. At the end of each arm 110a, 11b there is a standard screw connection 114a, 114b that allows attachment of a standard paint spray assembly 116a, 116b (as shown in Figures 1-3) to the arm . The standard paint spray assemblies 116a and 116b are constructed by tip guard 118a and 118b having reversible paint spray tips 120a and 120b (see FIG. 3), and by a user of the present invention rotating the grips 122a and 122b 122b that cut off the paint flow to the assembly of the assembly.

The central supply tube 102 and the two arms 110a, 110b can be made of metal; However, those skilled in the art will recognize that they may be constructed of other durable materials, such as plastics, which can support the paint spray assemblies 116a, 116b and allow the flow of paint to pass without rupture or warping.

2 is a side perspective view of the paint spray wand 100 of FIG. Figure 2 provides a detailed view of the threaded connection 106 to the 3-way manifold 108 and the branching of the central supply tube 102 to the two arms 110a, 110b by the manifold 108. [ do. In this example, the two arms 110a, 110b are connected to the manifold 108 via threaded connections 112a, 112b. 2 also shows a standard paint spray assembly 116a, 116b with tip guard 118a, 118b, reversible paint spray tips 120a, 120b and handles 122a, 122b on two arms 110a, Standard threaded connections 114a and 114b are shown for connection.

3 is a top view of the paint spray wand 100 of FIG. FIG. 3 best illustrates the vertical offset of the paint spray assemblies 116a, 116b which, in use, causes the paint spray from one tip 120b to be sprayed forward or backward of the other tip 120a. 3 also illustrates a three-way manifold 108 that branches the central supply tube 102 into two side arms 110a, 110b connected to the manifold 108 by threaded connections 112a, 112b. do. The two arms 110a and 110b also have standard paint spray assemblies 116a and 116b (with tip guard 118a and 118b, reversible paint spray tips 120a and 120b and handle / shutoff valves 122a and 122b) The standard screw connections 114a and 114b are shown.

Figure 4 is a front view of one embodiment of an embodiment of a paint spray wand 100 of the present invention having paint spray assemblies 116a and 116b (Figures 1-3) removed from wand arms 110a and 110b. In one embodiment, each arm may be a length, which may range between 5 "and 10" in standard applications. The centers of the standard threaded connections 114a, 114b or arms 110a, 110b are separated by a distance b. In use, when the paint is discharged from the tips 120a and 120b (Figure 3), a paint pan is created. Distance b is designed to be a distance that allows overlap between paint fans when the paint is ejected from the tip. An approximate 40% to 50% overlap between paint spray fans is desirable, although the overlap may be greater or less depending on the application or intended use. The overlap is designed to provide more coverage per pass of the wand 100 during injection than a conventional paint spray.

Generally, the distance b may vary depending on the size of the paint tips 120a, 120b used. In the case of a tip that produces a larger fan, such as a 14 "fan, the spray wand 100 may be designed with a distance b of approximately 7-8 ". For a tip that produces a 12 "fan, the distance b may be about 6-7 ". For a tip that produces a smaller fan, such as a 6 "pan, the distance b may be about 3-4 ". The different spray wands 100 may be designed to accommodate a particular tip and a particular application or application. Depending on the application and tip size, distance (b) may vary from 3 to 8 inches. For some applications, the distance may be less than 3 inches or more than 8 inches.

Figure 5 is a side view of the paint spray wand of Figure 4, and Figure 6 is a top view of the paint spray wand of Figure 4; Figures 5 and 6 best illustrate the vertical offset between arms 110a and 100b to allow one paint spray assembly 116a, 116b (Figures 1-3) to be sprayed ahead of the other. As shown, the two arms 110a and 110b are offset in the vertical direction by a distance c. Distance c may range between ½ "and 5". One of the purposes of the offset is to prevent the spray fan from colliding to generate turbulence.

Generally, size 615 or 617 paint spray tips 120a, 116b may be used with paint spray assemblies 116a, 116b, although other paint spray assemblies 116a, 116b may be used without departing from the present invention. The initial number "6" of the paint spray tip number is doubled to determine the size of the paint pan created by the tip. Thus, a 615 paint tip produces a fan of 12 ". The numbers 15 and 17 represent the size of the orifice of the paint tip, which depends on the type and thickness of paint you spray. Those skilled in the art will recognize that other sizes of paint tips may be used in the present invention, for example, a tip as small as 3 creates a 6 " fan for finer enamel finishes, Create a 14 "fan. Different sized paint spray wands 100 may be designed for such applications with smaller or larger tips, unless the scope of the present invention is not exceeded.

Figures 7 to 10 illustrate a front view, a back view, a side view, and a bottom view, respectively, of an exemplary manifold 108 that may be used in conjunction with the paint spray wand 100 of the present invention. As described above, the manifold 108 separates the paint flow from the paint supply tube 102 into two paint streams, which are passed through the two arms 110a, 110b to the paint spray assembly 116a , And 116b. This can be done as shown by the inner flow path 800 of Figures 8-10 using a T-shaped valve as shown in Figures 1-6. However, the designed valve or manifold 108 includes an input 702 and two outputs 704 through which the paint enters the valve.

Figure 7 shows an example of an external design for the manifold. Those skilled in the art will appreciate that the outer design is decorative and can be designed in many different configurations without affecting its functionality. Figure 8 shows the flow of paint through input 702 and two outputs 704. FIG. 9 illustrates one of the flow output orifices and FIG. 10 illustrates an input orifice 702. FIG.

Figures 11 and 12 illustrate paint flow from paint spray wand 100 in use. 11 is a top view of a paint spray wand 100 showing spray fans 1102a and 1102b produced by each paint spray assembly 116a and 116b in use. 12 is a front view of a paint spray wand 100 showing spray fans 1102a and 1102b produced by each paint spray assembly 116a and 116b in use.

In operation, the user of the present invention may use a threaded or wrench-tight threaded connection 104 to connect the wand 100 of any standard non-air paint spray, such as a Grayco 395 model, 102). The wand 100 draws paint from the paint spray through the central supply tube 102 into the three-way manifold 108 and into the two arms 110a and 110b where the paint spray assemblies 116a and 116b Flows into the included paint spray tips 120a, 120b (Figure 3) and flows onto the surface to be painted in the shape of the pan.

As shown in FIG. 12, due to the overlap in the paint spray pan created by the spacing of the two arms 110a, 110b, the present invention allows the user to use a spray with only one tip It can cover twice the surface area, which effectively cuts labor time by half. As shown in Figure 11, due to the vertical offset between the tips, one spray is ahead of the other. Thus, the wand design 100 prevents the spray fans 1102a and 1104b from impacting to create turbulence.

As described above, the space between the arms 110a, 110b for generating an overlap can be 3 to 8 inches or more. The paint pan produced by the spray (d) may vary depending on the tip size of the paint spray assemblies 116a, 116b, and is typically 6 to 14 inches, which generally produces an overall spray (e) of 9 to 21 inches Can change. Those skilled in the art will appreciate that the wand 100 may be designed to vary the distance range according to the desired application, application and tip size used in various wand (100) sizes.

A method for painting a surface is also provided by the present invention. The method includes the step of providing a dual paint spraying wedge that ejects two overlapping paint fans, one paint fan being sprayed ahead of the other. The method may be performed in connection with any of the other wands 100 that provide two spray arms that produce the aforementioned wand 100 or two paint sprays wherein the distance between the arms overlaps the paint spray And the arms are vertically offset so that the spray from the arm located closest to the wall during operation will spray the paint onto the wall prior to the spray coming from the other arm. The vertical offset places one arm in front of the other during use so that one arm is closer to the wall than the other.

In addition, the handles 122a, 122b act as shutoff valves and can cause the paint flowing to the paint spray tips 120a, 120b to stop when rotated. This allows the wand to be used as a single tip sprayer for tight cut-in around walls, doors, boxes and corners.

The foregoing embodiments have been presented for purposes of illustration and description. This is not exhaustive and does not limit the claimed invention to the precise forms disclosed. Modifications and variations are possible in light of the above description or may be acquired by practicing the invention. The claims and the equivalents thereof are intended to define the scope of the invention.

Other devices, devices, systems, methods, features, and advantages of the present invention will become or become apparent to those skilled in the art upon examination of the following figures and detailed description. All such additional systems, methods, features and advantages are included in this description, are within the scope of the present invention, and are intended to be protected by the appended claims.

100: paint spray wand
102: central paint supply tube
104: threaded connection
106: Screw connection
108: 3-way manifold 108

Claims (12)

A dual-head paint spray wand having a central supply tube that branches into two arms, each arm having a spray end capable of spraying paint and creating a paint pan during use, The wand permits the paint pan produced by the two arms to overlap when separated from each other at a predetermined distance, and the two arms are perpendicular to one another to allow one arm to spray paint in front of the other. The wand according to claim 1, wherein the paint overlap is a 40-50% overlap of the two paint panes produced by the two arms. The wand according to claim 1, wherein the predetermined distance between the two arms is 3 to 8 inches. The wand according to claim 1, wherein the vertical offset of the two arms is ½ inch to 5 inch. The wand according to claim 1, wherein the spray end of each arm comprises a paint spray assembly that produces a paint pan in the range of 6 to 14 inches. A method of painting a surface,
Providing a dual paint spray wand,
Wherein the dual paint sprayer generates two overlapping paint spray fans, one paint spray fan being sprayed before the other. 7. The method of claim 6, wherein the paint spray pan is 40-50% overlap. 7. The method of claim 6, wherein the two paint sprays are produced by a paint spray assembly separated from each other by a predetermined distance. 7. The method of claim 6, wherein the paint spray assembly is separated from each other by 3 to 8 inches. 7. The method of claim 6 wherein the paint spray pan is offset perpendicularly to one another to cause one paint spray fan to be sprayed before the other when painting the surface. A dual-head paint spray wand having a central supply tube that branches into two arms, the two arms being separated from each other at a predetermined distance, and the two arms being offset vertically from each other. 12. The wand according to claim 11, wherein the predetermined distance between the two arms is 3 to 8 inches and the vertical offset of the two arms is 1/2 to 5 inches.

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