Spray nozzle

July 24, 1962

3,045,926

W. F. STEINEN

SPRAY NOZZLE

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July 24, 1962

W. F. STEINEN

3,045,926

SPRAY NOZZLE

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United States Patent Office

3,045,926

Patented July 24, 1962

3,045,926 SPRAY-NOZZLE

William F. Steinen, Short Hills, N.J.

(43 Bruen St, Newark, N.J.)

Filed Sept. 14, 1959, Ser. No. 839,640 5

Claims. (Cl. 239—457)

The present invention relates to a spray nozzle, and it particularly relates to an industrial spray nozzle designed to create a flat spray of liquid, whether water or solution, 10 over a desired circular area.

It is among the objects of the present invention to provide a spray nozzle which will provide a circular flat spray and which may be readily used for bench and cold frame bed watering and industrial applications. 15

Another object is to provide a flat spray nozzle which will produce a fine circular sheet spray pattern at available water pressures, which is readily suitable for use at higher or lower pressures, and for use in cleaning drums, barrels and other tubular units as well as for other in- 20 dustrial applications.

A still further object is to provide a flat spray nozzle which will readily accommodate, itself to varying water consumptions with varying pressures to give different predetermined circular coverages widely varying in diame- 25 ter as may be desired.

Still further objects and advantages will appear in the more detailed description set forth below, it being understood, however, that this more detailed description is given by way of illustration and explanation only and not by 30 way of limitation, since various changes therein may be made by those skilled in the art without departing from the scope and spirit of the present invention.

According to preferred construction of the present invention, the nozzle of the present invention has a base 35 structure or body having a threaded mounting end, and main polygonal body with a tapered outlet portion.

The interior of the body has a through passage which is centrally threaded and opens toward its outlet end with a recessed portion or portions of varying diameters, ⁴⁰with an intermediate recessed portion of widest diameter.

The recessed portion of widest diameter receives the stream when it abruptly changes direction before it leaves the nozzle, and has an equalizing function to assure uniform spray distillation throughout the entire spray pat- ⁴⁵tern.

Within the threaded interior portion, there is inserted a threaded central member or stem member, having an interior bore with an enlarged head, which head may be knurled or provided with a slot or polygonal head to en- ⁵⁰able firm grip thereof when it is inserted or screwed within the body member.

The stem member is desirably provided with transverse openings intermediate of the length thereof, which open into the widest diameter chamber. ⁵⁵

Within this chamber, the stem and body form an outer annular chamber serving as the equalizing chamber, which extends to the outlet and through which the water or other liquid is discharged under substantial pressure.

Depending upon the shape and size of the outlet of the main body and the shape and size of the head, the water then is projected outwardly in a fine spray in a horizontal direction over the entire 360° periphery, with the spray either being directed outwardly at a 180° angle to the axis of the spray fitting or over a lesser angle to the ⁰⁵axis of the spray fitting or at various other displacements, depending upon the size and shape of the outlet passageways.

The pattern may also be limited to less than 360° in periphery, for example, to 180°. ‘°

With the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts as hereinafter more specifically described, and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claims hereunto appended.

In tlie drawings wherein like reference characters denote corresponding parts throughout the several views:

FIG. '1 is a side elevational view of one form of spray nozzle, according to the present invention.

FIG. 2 is an exploded or separated view similar to FIG. 1, showing the base unit in section and the stem unit removed therefrom.

FIG. 3 is a transverse sectional view taken upon the line 3—3 of FIG. 1.

FIG. 4 is a fragmentary end elevational view of an alternative construction, showing how the angular displacement of the spray may be varied.

FIG. 5 is a transverse longitudinal sectional view of an alternative embodiment.

FIG. 6 is a separated view of the elements of FIG. 5.

FIG. 7 is a transverse fragmentary view of an alternative-embodiment showing a reverse angle arrangement for directing the spray back toward the body of the fitting.

FIG. 8 is a fragmentary side elevational view of the tip of the nozzle showing the device having a 180° spray range.

FIG. 9 is a transverse sectional view taken upon the line 9—9 of FIG. 8.

Referring to FIGS. 1 to 3, there is shown a main base unit A and a stem unit B.

The base unit A has the threaded mounting end portion C, the polygonal body portion D and the tapered outlet end portion E.

The threaded base portion C is mounted in the mounting unit F, indicated in dot and dash lines.

The body unit A has an interior inlet bore, 10, which is centrally threaded, as indicated at 11.

This threaded portion opens into a slightly enlarged shallow recess 12, which opens into a further enlargement 13, serving as an equalizing chamber, which in turn communicates with another outlet bore 14, smaller in diameter than the recess 13 but of about the same dimension as the initial recess 12.

It is noted that the polygonal section D and the threaded portion C are joined by the flat face of shoulder 15 and that the tapered portion 16 terminates in the shoulder 17 at the polygonal portion D and at the shoulder 18 adjacent the outlet end 19 of the bore 14.

The tapered portion is stepped down, as indicated at 20, immediately adjacent the outlet 19.

The stem unit B has an enlarged head 30 with a knurled outside face 31 and a beveled top face 32 with a fillister slot 33.

.The head has a stepped down unknurled portion 34 with a flat under face 35 to give a flat spray.

The flat face 35 curves at 36 into the main reduced diameter stem portion 37.

The reduced diameter portion 37 curves at 38 into the enlarged shoulder 39, which acts as an abutment to fit into the recess 12 and contact the shoulder 40 with its under face 41 (see also FIG. 3).

Beyond the shoulder 39 is the additional reduced diameter portion 42 which terminates in the bevel 43 at the threaded portion 44.

This threaded portion 44 terminates in a further bevel 45.

The threaded portion 44 and the beveled portion 45 will extend into the threaded portion 11 in the body A, as shown in FIG. 3.

3,045,926 ' 3

Interiorly of the stem B is a longitudinal bore 60 which extends the full length of the stem B up to short of the under face 35 of the reduced diameter portion 34.

This bore adjacent the shoulder 39 and along the reduced diameter portion 37 is provided with four radial outlet passageways 61, which, in the assembly of FIG. 3, will open directly into the enlarged equalizing recess 13.

It will be noted that the outlet 19 has a flat peripheral face, as indicated at 62. This flat peripheral face 62, together with the under face 35 and the curve 36, will give the horizontal spray indicated at 63 an angular displacement of 180°, as indicated at 64, in all directions, over 360° around the axis 65 of the fitting.

The water will first flow from the feed unit F into the passageway 10 and then into the passageway 60 in the stem B, and it will then flow out through the radial bores 61 into the wider equalizing recess 13 and then through the narrow annular passageway 66 to over the peripheral lip 62 and under the flat shoulder face 35 to form the horizontal spray as indicated in FIG. 1.

In the alternative embodiment of FIG. 4, the plane of the under face of the head 35 has an angle departing from the perpendicular to the longitudinal axis of the nozzle to change the displacement of the spray in respect to the longitudinal axis 65 of the nozzle.

The oblique plane 79 may incline toward the longitudinal axis 65 or away from the longitudinal axis 65.

As a result, when the annular jet of water flows up to and under the shoulder 35 which is under the head 30¹, the angularity or obliqueness of the plane 79 will assume a different angular displacement indicated at 78 with the spray 79 extending upwardly or downwardly of about 360°, in a peripheral area.

In the embodiment of FIGS. 5 and 6, similarly functioning parts are indicated by the same numerals and letters as in FIGS. 1 to 3, which however, are prime.

In FIG. 5, a hexagonal head B' is employed with the shoulder 35' forming a transverse angle to give a spray of 180° as shown in FIG. 1, or an oblique angle to give a spray of 180° as indicated in FIG. 4.

It will be noted that the water in passing from the passageway 10' will flow into the bore 60' in the element and then radially outward over through the passageway 61' into a chamber of enlarged dimension inside of the wall 13'.

The liquid will then flow through the more constricted passageway 66' to strike the transverse shoulder 35'.

The spacing between the end of the body A' at 62' and the face 35' being greater than in FIG. 1 will give a somewhat wider spread to the spray.

The step as indicated at 18 in FIGS. 1 and 2 and the nural head 31 have been eliminated in the embodiments of FIGS. 5 and 6, and the shoulder 40 has been supplied with a bevel 38' instead of the round 38 to direct the liquid in the chamber 13'.

The elimination of the step 18 in FIGS. 1 and 2 will cause the top facing or end 62' to extend substantially beyond the inside direction face 35' giving a greater pattern to the spray.

In the embodiment of FIG. 7, similarly functioning parts are indicated by the same numerals provided with a superior two.

In this embodiment, the opposite faces which control the direction of the spray, namely, 35² and 62² are turned back toward the body or structure 16² so that the spray will form a cone indicated by the dot and dash lines around the body of the nozzle.

In the embodiment of FIGS. 8 and 9, similarly functioning parts are indicated by the same numerals and letters provided with superior three.

The spray will take place over an area of 180° since the only opening will be between the faces 62³ with the abutment taking place at the upper side of FIGS. 8 and 9 and preventing the spray from leaving the nozzle except over the lower 180° portion as indicated in FIG. 9 between the faces 62³.

In short, the spray may be limited to the area below the arrows 10®, and the abutment at 101 will prevent any spray being emitted from the nozzle above the arrows 100 of FIG. 9.

The face 102 will act to control the direction of the spray together with the face 33³, and it may be turned at angles as indicated in FIGS. 4 and 7 provided that the abutment is maintained at 101.

This angle of emission may be varied from 60 to 200° instead of 180° as indicated in FIGS. 8 and 9.

Instead of the oblique faces being parallel to each other as indicated at 35² and 62² in FIG. 7, they may diverge or converge in respect to each other to give variations in the spray effect.

It is thus apparent that the applicant has provided a novel bench and cold frame bed watering nozzle, also useful for other industrial purposes, such as barrel drum or tubular vessel, washing, cleaning and finishing, which nozzle may deliver widely varying capacities at various pressures and with varying coverages.

As many changes could be made in the above spray nozzle, and many widely different embodiments of this invention could be made without departure from the scope of the claims, it is intended that all matter contained in the above description shall be interpreted as illustrative and not in a limiting sense.