US3512719A

US3512719A - Siphon nozzle

Info

Publication number: US3512719A
Application number: US719152A
Authority: US
Inventors: Morton E Phelps; Tommy O Bell
Original assignee: Individual
Current assignee: Individual
Priority date: 1968-04-05
Filing date: 1968-04-05
Publication date: 1970-05-19
Anticipated expiration: 1987-05-19

Description

May 19, 1970 M. E. PHELPS ETAL 3,512,719

SIPHON NOZZLE Filed April 5, 1968 I N V EN TORS. Maero/v E, PHEL p3 TOM/WV O. 8544,

BY 49 f United States Patent 3,512,719 SIPHON NOZZLE Morton E. Phelps, 715 Thomas St., Little Rock, Ark.

ABSTRACT OF THE DISCLOSURE A spray nozzle comprising four parts including a spinner member, with an orifice member disposed adjacent thereto, and an adapter member adjacent the orifice member with a cap member threadably engaging the adapter member so as to hold the parts together in a sealed and proper relationship. The interior of the adapter member and the orifice member and the spinner nozzle member are provided with passageways for passing a liquid and air therethrough so as to provide a rotating stream of air escaping from the nozzle in such a way as to create a suction and pull liquid from the orifice member to provide a spray emanating from the nozzle.

The present invention relates to a nozzle and more particularly to a siphon nozzle in which a liquid is discharged from the nozzle by utilizing a stream of whirling air to emit or discharge a spray of liquid droplets which consist of discrete particles, or an atomized mist.

*It is anobject of the present invention to provide a nozzle that comprises a simple four-part construction in which the parts are easily cleaned due to the size and shape of the two inner parts.

It is another object of the present invention to provide a nozzle which provides a substantially perfect sealing arrangement without the necessity for gaskets.

It is another object of the present invention to provide an atomizing nozzle provided with air spinning flutes that are cut into the front piece of the assembly to greatly simplify the manufacture thereof.

It is yet another object ofthe present invention to provide a siphon nozzle which has relatively large holes therein and still has the efiiciency of the smaller holes used in other nozzles.

It is yet another object of the present invention to provide a nozzle that has an access for free air around the discharge end of the nozzle to strengthen the carrying capacity without adding to the break up of the material being sprayed.

It is yet a further object of the present invention to provide a nozzle which has a relatively long discharge member to catch the whirling liquid and create larger particle size.

It is yet another object of the present invention to provide a nozzle that may be easily disassembled and reassembled without any special tool requirement.

Another object of the present invention is to provide a nozzle that can be easily mounted on a panel or a pipe support.

Yet another object of the present invention is to provide a nozzle having a structure which permits the use of any material such as brass, stainless steel and plastics. The parts of the nozzle may be made of various plastic material such as nylon-delran and the like, and all of the parts are designed to permit injection molding. All of the parts can be further made on screw machines with a minimum of additional machine work and the flutes in the nozzle and the eccentric air supply holes in the adapter part of the nozzle are the only parts that must be made on a machine, other than a screw machine, when the parts are made on the screw machine.

3,5 12,7 1 9. Patented May 19, 1 970 It is yet another object of the present invention to provide a nozzle in which the internal parts of the nozzle may be removed without disturbing the mounting of the nozzle on a support member.

It is yet a further object of the present invention to provide a threaded section with nut means for mounting the nozzle on a panel.

Another object of the present invention is to make a nozzle with high efiiciency ratio of liquid delivered per cubic foot of air at a certain p.s.i.

Various other objects and advantages of the present inventiton will be readily apparent from the following detailed description when considered in connection with the accompanying drawing forming a part hereof and in which:

FIG. 1 is an elevational view partly in section illustrating the nozzle of the present invention;

FIG. 2 is a section taken along the line 22 of FIG. 1;

FIG. 3 is a section taken along the line3-3 of FIG. 2; and

FIG. 4 is an exploded view of two inner parts of the nozzle illustrating a modification of the spinner member so that a hose and the like can be attached thereto.

Referring to the drawing, the reference numeral 10 generally designates the nozzle of the present invention,

and is provided with an adapter member 12, a spinner discharge nozzle 14, and a orifice member 16, and a cap member 18. The nozzle device of the present invention is further provided with a threaded nut 20 so that the entire assembly may be mounted on a panel 22.

The adapter member 12 comprises a hexagonal housing with a threaded air inlet bore 24 in the rear thereof, which communicates with a longitudinal air passage 26 drilled through the front portion of the member. The front end of the adapter member is provided with an annular countersink or recess 28 therein, which communicates with the drilled passage 26.

The adapter member is further provided in its periphery with an enlarged liquid bore 30 which is internally threaded, and which communicates with a drilled passage or hole extending substantially through the central axis of the adapter member. It will be noted that the hole 32 is further provided with a small drilled hole 34 which connects the rear end of it with the bore 30. The rear portion 36 of the adapter member is of greater diameter than the front or forward portion 38 which is externally threaded, so that a shoulder 40 is disposed between these two portions, and the adapter member is easily mounted on a panel 22 by inserting it through a hole in the panel and securing the threaded nut 20 as best seen in FIG. 2.

Disposed centrally of the annular recess 28 is a tubular section 42 which surrounds the drilled hole 32 and extends forwardly of the front edge 44 of the adapter memher. The tubular section is tapered, as indicated at 46', so as to diverge outwardly and to form a seat for the orifice member 16.

The orifice member 16 comprises a substantially cylindrical center portion 48 with a truncated rear portion 50, having an inwardly tapered or converging surface 52, which forms a seat that is adapted to form a seal with the tapered seat 46 of the tubular section 42. The cylindrical center portion 48 is cut away, as indicated at 54, so as to permit the end portion of the tubular section 42 to extend into the recess formed 'by the annular cut-away portion 54.

The edge or surface of portion 48 disposed opposite the cut-away portion 54, has a surface 56, which extends parallel to the bottom surface of the cut-away portion 54, as best seen in FIG. 2. This surface 56, which is tapered rearwardly, is adapted to seat against a complementary annular surface 58 on the rear of the spinner nozzle 14. A

3 drilled central hole or passage 60 is provided in the orifice member 16 and communicates with the passage 32. It will be further noted that the surface 56 gradually or progressively bends into a forwardly extending tu-bular section 62 adjacent the front end of the member 16.

The spinner discharge nozzle 14 comprises a substancia'lly cylindrical member with a central passage 64 therein. The front end portion 66 of this nozzle 14 tapers inwardly as indicated at 66'. The rear end 68 of nozzle 14 has a larger diameter than the intermediate portion 70, so that a shoulder is formed between these two portions. The cap member 18 comprises an internally threaded member with a hollow bore and an in-turned rim 72 adjacent the front end adapted to receive the nozzle 14, so that the intermediate portion 70 seats on the rim 72, while the rear of the rim and the shoulder between the portions 68 and 70 abut each other.

Referring to FIG. 3, it will be seen that the rear of the spinner nozzle 14 is provided with three circumferentially spaced flutes, which consist of drilled holes extending from the outer surface of the nozzle 14 to a rear central passage 64 of the member 14. The rear passage 76 converges inwardly and has its rear end provided with a diameter that is substantially larger than the diameter of its forward end. The flutes extend in a somewhat radial direction and are spaced equidistant from each other.

The outside diameter of the orifice member 16 is substantially smaller than the interior diameter of the cap member 18, and the annular recess 28 and the cut-away rear 54 of the orifice member 16 are spaced from each other, so that these, along with the interior of the cap member 18, form an air cavity 78 internally of the cap member 18.

The passage 26 communicates with this air cavity 78, so that air passing from the bore 24 and through the passage 26 will enter this air cavity, as indicated by the arrows in FIG. 2, and pass around the orifice member 16 and into the flutes 74, with which this cavity communicates. Thereafter, the air will enter the annular chamber 80 formed between the rear central passage 76 of the nozzle 14 and the front surface of the orifice 16.

Referring to FIG. 2, it will be noted that there is a dotted line indicated'as 82 extending transversely of the nozzle 14. This dotted line 82 indicates that the nozzle 14 may be cut off at this point, if desired, in order to control the droplet size of liquid being discharged from the nozzle.

Referring to the embodiment of the invention shown in FIG. 4, it will be noted that the spinner nozzle indicated at 14 is substantially as that illustrated in FIG. 2, except that the intermediate portion 70' does not have a front tapered portion such as 66 in FIG. 2, but instead is provided with a stepped, elongated tubular portion 66 and is formed into a hose barb, so that a hose may be detachably connected thereto, and so that the nozzle may be used as a fertilizer distributor. With this modification of the nozzle, the liquid pump, commonly used to move fert lizer, can be eliminated, and corrosive chemicals can be handled with plastic parts without fear of corrosion.

In operation, air enters from the back of the nozzle 24 and passes through the drilled hole 26 and into the air cavity 78 and around the orifice member 16 and through the annular chamber 80, the air passing through the flutes 74 and then into the chamber 80. The flutes 74, being disposed off-center, cause a spinner or vortex of air to form and pass over the leading edge of the passage 60. This vortex causes a suction to develop near the end of the passage 60, which draws liquid through the passage 32 and the passage 60, the liquid being supplied from a source not shown through the bore 30. The vortex continues on until it discharges at the front end of the spinner nozzle 14. The length of the spinner nozzle can be used to control the particle size of the spray from drops to a fine mist. The longer the nozzle, the larger the particles. If the escape chamber is Vs inch long, very fine mist 4 is produced, and if it is one inch long, the liquid will just drip off the end.

The seat between tubular section 42 and the surface 52 forms a seal without a gasket. This holds the air away from the liquid or chemicals flowing through the passage 32. The surface 56 and complementary surface 58 also form a seal without the requirement of a gasket and these seals are automatically maintained by properly threading thecap member 18 onto the threaded portion 3-8 so as to maintain the parts in a proper sealed relationship.

If it is desired to clean the parts, it is only necessary to unthread the cap 1'8 and the whole inner structure is revealed for inspection and cleaning. The general shape and design of this nozzle permits the use of comparatively large holes through the spinner nozzle and the orifice member. This helps to prevent stoppage and makes the unit much easier to clean.

It is also to be noted that the present invention permits easy cleaning of the flutes or air slots as they are accessible once the assembly is taken apart. It is also apparent that it is easily reassembled by merely inserting the spinner nozzle into the cap member and, thereafter, placing the orifice member adjacent the spinner nozzle, and the assembly is ready for securing to the adapter member by merely threading the cap member onto the threaded front portion 38.

Thus, from the foregoing description, it is apparent that the nozzle of the present invention embodies a simple, four-piece construction which requires no gaskets and uses relatively large holes and still has the efficiency of the smaller holes used by other nozzles.

Inasmuch as various changes may be made in the arrangement and location of the several parts, it is not meant to limit the invention.

What is claimed is:

1. A nozzle comprising an adapter member with air and liquid passage means extending therethrough, a hollow cap member threadably secured to the front portion of said adapter member, a spinner nozzle having passage means extending therethrough disposed in the front portion of said cap member, an orifice member having a liquid passage extending therethrough disposed in said cap member between the front edge of said adapter member and the rear of said spinner nozzle, said orifice member having a cylindrical center portion with a cut-away, annular rear recess surrounding a truncated rear portion, said adapter member having a front tubular section extending into said annular recess of the orifice member and having a tapered surface abutting a complementary surface of the truncated rear portion of the orifice member to form a seal therebetween, and said orifice member and spinner nozzle having engaging surfaces forming a seal therebetween.

2. The nozzle of claim 1 wherein said cap member is of greater diameter than said orifice member to provide an annular air chamber therearound, and said adapter member has an annular recess around said tubular section, and said annular recess and cut-away recess and interior of said cap member form an air cavity in communication with said annular air chamber and form a portion of said air passage means.

3. The nozzle of claim 2 wherein the front surface of said orifice member is tapered inwardly and forms said engaging surface with said spinner nozzle and said spinner nozzle has a tapered rear edge which forms said engaging surface with said orifice member.

4. The nozzle of claim 3 wherein the rear of said spinner nozzle is provided with transverse extending air flutes in communication with said annular air chamber and forms a portion of said spinner nozzle passage means.

5. The nozzle of claim 4 wherein said spinner nozzle is provided with an elongated, barbed front tubular section.

6. The nozzle of claim 4 wherein said flutes extend inwardly into a converging bore forming the rear of said spinner nozzle passage means.

7. The nozzle of claim 6 wherein said cap member has an in-turned front lip and said spinner nozzle has a shoulder seated thereagainst.

8. The nozzle of claim 7 wherein the front of said orifice member is bent gradually inwardly and terminates in an extending tubular section extending into said converging bore with which said flutes communicate.

9. The nozzle of claim 8 wherein said adapter member has a shoulder and nut means are threaded on said adapter member rearwardly of said cap member to mount it on a panel.

10. The nozzle of claim 4, wherein said spinner nozzle is provided with an elongated, front tubular section extended beyond the front surface of said cap member.

References Cited 5 V UNITED STATES PATENTS 2,821,437 1/1958 Lesher 239-403 2,984,420 5/1961 Hcssion 239405 M. HENSON WOOD, JR., Primary Examiner 10 M. Y. MAR, Assistant Examiner