US2240401A - Spray gun - Google Patents

Description

April 29, 1941.

C. S. JORDAN SPRAY GUN Filed May 15, 1939 A tforneys Patented Apr. 29, 1941 SPRAY GUN Claude S. Jordan, Culver City, Calif., assignor to A. G. Jordan Manufacturing Company, a corporation of California Application May 15, 1939, Serial No. 273,766

2 Claims.

The present invention relates to a structurally and functionally improved spray gun which is especially, but not necessarily, adapted for containing and spraying paint and the like on a surface to be coated therewith.

Broadly, in reducing to practice the principles of this invention I have evolved and produced a steam type spray gun characterized by a container for the paint having a fixed nozzle, there being associated with this a relatively movable and adjustable nozzle, and means being provided to support the latter from the jar or container in such a way as to adequately regulate the delivery of the stream of liquid to render it lean or rich, as desired.

By way of comparison with known guns I have designed and structurally perfected special adaptations considered to be contrastingly simple and economical and of such efficiency as to justify use by and endorsement of the trade in general.

Other features and advantages will become more readily apparent from the following description and accompanying illustrative drawing.

In the drawing, showing the preferred embodiment, and wherein like numerals are employed to designate corresponding parts throughout the views:

Figure 1 is an elevational view showing the invention perfected in accordance with my ideas.

Figure 2 is a top plan view of the structural assemblage seen in Figure 1.

Figure 3 is a section taken on the plane of the indicating line 33 of Figure 1.

Referring to the drawing, it will be observed that the paint or liquid containing jar is denoted by the numeral H. A cap I! is removably screwed on the threaded neck thereof, a packing ring or gasket l3 being introduced between the cap and jar. Formed integral with the cap and rising at the desired oblique angle is the relatively fixed liquid delivery spray nozzle l4. A tube l5 depends into the jar terminating in spaced relation with respect to the bottom of the jar. This serves to elevate the paint into the bore of the nozzle 14. The tube is threaded into the base of the nozzle and secured in place by a lock nut l6. Incidentally, the passage I1 is a simple air vent. Adjacent the vent and formed integral with the cap at the central area thereof is an appropriately shaped mount l8. This is straddled by furcations IS on the lower end of the bifurcated leg 20, the latter being carried by the body portion of the swingable carrier or lever unit 2|. The furcations straddle and are pivotally connected to said mount as at 22.

spring is anchored on the mount, said spring 23 engaging the pivoted end of the leg to swing the mount in a direction from left to right in relation to the fixed nozzle M. The swingable end of the mount, above the bifurcated leg, is fashioned to accommodate a tube 24. The tube is saddled in place by a U-shaped bail 25 provided with a set screw 26 engaging said tube. In advance of the saddle is an upstanding eye or stirrup 21 which serves as a suitable adapter and holder for the flattened steam spray nozzle 28. The nozzle 28 is formed on one end of the tube and attached to the other end of the tube is the steam delivery hose 29. While air may be used, steam has been found preferable.

Referring again to the pivoted unit 2!, it will be observed that one end of the body thereof is fashioned into a so-called pistol-grip handle 30. A trigger 3| is pivoted in the cavity or recess 32 as indicated at the point 33. The trigger at one end is engageable with a fulcrum knob 34 formed on said cap. The finger-grip of the trigger 35 cooperates with a check shoulder or abutment 35. Thus, by grasping the pistol-grip and placing the index finger on the trip of the trigger, the latter part serves in conjunction with the fulcrum 34 to swing the entire unit 2| against the tension of the spring 23. This moves the adjustable nozzle 28 toward and from the fixed nozzle I l, whereby to regulate the intensity, suction, and character of the paint stream. That is to say, it is possible to quickly turn on and shut off the flow and to regulate the mixture so that it is either rich or lean, as conditions require.

It is thought that the description taken in connection with the drawing will enable a clear understanding of the invention to be had. Therefore, a more lengthy description is thought unnecessary.

While the preferred embodiment of the invention has been shown and described, it is to be understood that minor changes coming within the field of invention claimed may be resorted to if desired.

I claim: I

1. In a spray gun of the class described, a paint jar provided with a fixed upstanding nozzle, a paint delivery pipe connected to said nozzle and depending into the jar, a lever unit pivotally mounted on said jar, said lever unit being provided with a pistol-grip, means on said lever unit to accommodate and attach in place a steam delivery tube and nozzle, a tube and nozzle secured on the lever unit by said means, a trigger pivotally mounted on said lever unit, said trigger mounted on said pivot pin,-that end of the level" adjacent to said spraying nozzle being free of connection with and spaced from said nozzle and swingable in an are clear of the nozzle and terminating in an integral upstanding steam nozzle adapter eye, the lever adjacent said eye having an integral upstanding U-shaped saddle, said saddle being in close spaced relation and parallel to said adapter eye, the crown portion of the saddle being provided with a steam nozzle clamping screw, 2. fulcrum element on and rising from said cap, and a trigger pivotally mounted on said lever, one end resting on said fulcrum and the other end projecting beyond the lever to form a manually operated trigger element.

CLAUDE S. JORDAN.

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