|Publication number||US2767024 A|
|Publication date||Oct 16, 1956|
|Filing date||Sep 1, 1953|
|Priority date||Sep 1, 1953|
|Publication number||US 2767024 A, US 2767024A, US-A-2767024, US2767024 A, US2767024A|
|Inventors||Swan Harold A|
|Original Assignee||Swan Harold A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (10), Classifications (10)|
|External Links: USPTO, USPTO Assignment, Espacenet|
H. A. SWAN SPRINKLER HEAD Oct. 16, 1956 Filed sept. 1, 1953 4M 8 9 1% 2 4. 4/ m4 2\ .o 4 N 4 4\ Il l IIIIIIIIIIP IIIIIII'III IN V EN TOR. HAR OLD A, SWAN AGINT5 FR APPLICANT United States Patent() SPRINKLER HEAD Harold A. Swan, Coronado, Calif.
Application September 1, 1953, Serial No. 377,755
3 Claims. (Cl. 299-120) Ihe present invention relates generally to water sprinklers and more particularly to a sprinkler head for attachment to a water hose.
The primary object of this invention is to provide a sprinkler head which, installed in the end of a hose using conventional hose ttings, breaks up the water into a cone of small droplets rather than a fine spray, thus achieving even distribution without reduction to a ne spray, it being recognized that much Water is carried olf in the air when a tine spray is produced. The device is suitable for re fighting equipment.
Another object of this invention is to provide a sprinkler head having a rotor which is extremely light in weight and which breaks up the Water as desired without appreciable loss of pressure.
Another object of this invention is to provide a sprinkler head which is adjustable to control the range and spread of the Water.
Another object of this invention is to provide a sprinkler head in which the rotor and its mounting are designed for easy manufacture and assembly.
Another object of this invention is to provide a sprinkler head which is adapted for fabrication from many different materials, so that the choice of material can be according to the dictates of availability and price considerations, the exact sizes and proportions being matters easily determined to suit particular conditions and needs.
Another object of this invention is to provide a sprinkler head which is inexpensive and practicable to manufacture.
Finally, it is an object to provide a sprinkler head of the aforementioned character which is simple and convenient to use, and which will give generally efficient and durable service.
With these and other objects definitely in view, this invention consists in the novel construction, combination and arrangement of elements and portions, as will be hereinafter fully described in the specification, particularly pointed out in the claims, and illustrated in the drawing which forms a material part of this disclosure and wherein similar characters of reference indicate similar or identical elements and portions throughout the specification and throughout the views of the drawing, and in which:
Fig. l is a perspective view, partially cut away, of the sprinkler head.
Fig. 2 is a longitudinal sectional view of the device.
Fig. 3 is a longitudinal sectional view of an alternative structure for the device.
Fig. 4 is an end elevation view of the nozzle shown in Fig. 3.
Fig. 5 is a longitudinal sectional view similar to Fig. 2, but showing an alternative method of mounting the rotor.
Fig. 6 is an enlarged perspective view of the rotor mounting shown in Fig. 5.
Y tates at high speed and agitates the water.
2,767,024 Patented oct. 16, s
Fig. 7 is a partially sectioned side elevation view of one form of the rotor.
Referring now to the drawing, the device comprises a lixed barrel 10 having an annular ange 11 by which it is secured to the end of a hose connector 12 by means of a screw cap 14. An adjustable barrel 16 is tted over the fixed barrel 10, said adjustable barrel having a nozzle 1S which extends inside the xed barrel. Within the nozzle 18 is a rotor 20 which is rotatably mounted on a screen disc 22. The nozzle constitutes bearing-like means for laterally stabilizing the rotor, as Well as a conduit for the Water.
The hose connector 12 is a conventional tting having a screw threaded cup portion 24 and a serrated extension 26 which is force fitted into the end of a hose 28. The screen disc 22 is placed on the end of the cup portion 24, a Washer 30 being used therewith to ensure a tight joint. The fixed barrel 10 seats on top of the screen disc 22 and is secured by the end cap 14, which is also a conventional fitting designed to screw onto the hose connector 12.
The adjustable barrel 16 comprises an outer cylinder 32, the nozzle 18 being concentric to said outer cylinder and integral therewith. The inner surface of the outer cylinder 32 has screw threads 34 to engage the screw threads 36 on the outer surface of the fixed barrel 10, so that the adjustable barrel may be manually adjusted axially thereon.
The rotor 2) includes a shaft 38 having at its lower end a ball 46, said shaft being passed through the open mesh of the screen disc 22 and the ball, with the screen, serving as a loW friction thrust bearing. At the upper end of the shaft 38 are secured the vanes 42, which are shaped to be rotated by the ilow of water through the device and are a close fit within the internal bore 44 of the nozzle 18. The vanes 42 are maintained in properly spaced relation with the screen disc by a sleeve 46 tted over the shaft 38, said sleeve being xed to the shaft or freely mounted thereon as desired.
As water flows through the nozzle 18, the rotor 20 ro- It has been found in practice that the Water is broken up into tine droplets, which have considerably more wetting action than a fine spray and the loss of moisture to the air is greatly reduced. It is contended that presently available sprinkler heads invariably break a considerable portion of the water into such tine spray form, even when not adjusted for line spray production. The ow of water droplets issuing from the nozzle may be varied from a narrow pattern to a Widely spread pattern by moving the adjustable barrel in or out, and thus effectively shortening or lengthening the portion of the nozzle in front ol' the rotor.
For certain applications, a lixed nozzle may be desirable, in which case my invention takes the form of the structure shown in Fig. 3. This structure includes a hose connector 48, similar to the hose connector 12, and an end cap 50, similar to the end cap 14. The nozzle 52 is tted inside the cup portion 54 of the hose connector 48 and is supported by a flange 56, said flange having a shoulder 57 which is engaged by the end cap 50 to align the nozzle. The nozzle S2 has at its lower end an inwardly bent portion comprising a pair of support arms 58 and a resilient loop 60 therebetween, this structure being formed integrally with the nozzle as shown in Fig. 4. The loop 60, constitutes a thrust bearing for the rotor 62a a similar rotor, the shaft of which is pressed into the resilient loop and held therein While still being free to ro tate. The vanes 64 of the rotor 62 are a close lit within the internal bore 66 of the nozzle 52, and are spaced from the loop 60 by a relatively short sleeve 68, the
general structure of the rotor being similar to that of the Vrotor 2i). The edges 69 of the rotor are serratedY The nozzle S2 is held in place by the end cap 50, the
- joint being sealed by-a washer 70. The nozzle 52 Vand the rotor 62 may be arranged to provide the iixed water pattern desired for a particular application.
In the embodiment shown in Fig. 3, the nozzle 52 is separate from the cap 50, whereas inthe rst described embodiment the nozzle 18 is integral with the outer V cylinder 32. However, the basic construction'with ref-V erence to the nozzle and rotor relationship is unchanged, since in both cases the rotor is laterally stabilized by the nozzle. Y' i 5 l An alternative means for mounting therotor is shown in Fig. 5, in which the screen disc is replaced by amounting frame 72, all other features being similar to those in Figs. land 2. The mounting frame '72, illustrated in Fig. 6, is a unitary structure of resilient wire or the like bent to shape and includes a pair of lower ring portions Y 74 which are outwardly spaced from pairs Vof offset portions 76 and'7S, the-axes of the portions 74, 76 and 78 being substantially coplanar, a pair of upwardly bent support portions Si) carry the upper ring 82 which is substantially parallel to the ring portions 7e and the ring 82 constitutes a bearing for the rotor 20, the end portions 84 also being upwardly bent -to correspond with said support portions 80.
The lower ring portions 74 rest on the end of the t' hose connector 12 and are held in place by the xed bar- Vrel l@ and the washer 30, the upper ring 82 being held concentric with the nozzle 1S and adjacent the lowerVV end thereof. t t
It should beY understood that. the shape or the rotor vanes is critical since this shape largely governs the size that the specication and drawing are to be considered as merely illustrative rather than limiting.
I claim: Y 1. A sprinkler head for attachment to a hose havlng a hose end connector, comprising a nozzle, means for securing said nozzle to a horse end connector, said nozzle including an inner cylindrical portion adjacent one end of the nozzle, thrust bearing means adjacent the end of said nozzle remote from said portion, and a vaned rotor having a shaft terminally and rotatably mounted in said bearing means and said rotor being axially disposed in said inner cylindrical portion, said inner portion constituting a lateral stabilizing support for said rotor.
2. A sprinkler head for attachmentto a hose having a hose end connector, comprising a nozzle, means for securing said nozzle to a hose end connector, and avaned rotor rotatably mounted axially in said nozzle, thrust bearing means in said nozzle for the rotor, said nozzle comprising means for laterally stabilizing said rotor as well as a' conduit for water, said thrust bearing means comprising a bearingyelement near the inner end of said nozzle, an axial shaft. on said Yvaned rotor having a portion journalled in said bearing element, and an enlargement on the end of said shaft remote fromtthe vaned rotor and on the side of said bearing elementY remote from,V
said vaned rotor.
3. A sprinkler headrfor attachment to a hose, comprisi ing a screw threaded hose end connector, an externall threaded barrel, an end cap securing said barrel @to said end connector, a nozzle having an inner cylinder and an outer concentric cylinder, said outer cylinder being internally screw threaded to engage said barrel, kwhereby said nozzle is axially adjustable thereon, bearing means Y secured between said barrel and said end connector, and
Y a vaned rotor journalled in saidrbearing means and dis- Y posed axially in said inner cylinder, said inner cylinderV constituting a lateral stabilizing 'support for said rotor;
said bearing meansY including a wire mesh disc, said rotor beingrjournalled in an opening of said disc.
References Cited inthe tile of this'patent Y UNITED STATES PATENTS VV758,311 France a Nov. 3, 1933
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US932718 *||Nov 22, 1907||Aug 31, 1909||Harry Rachmann||Atomizer for perfumes and other liquids.|
|US1810799 *||Dec 3, 1928||Jun 16, 1931||Cash A W Co||Nozzle|
|US1882241 *||Jan 6, 1926||Oct 11, 1932||Steam Power Inc||Self cleaning atomizing nozzle|
|AT19792B *||Title not available|
|FR688640A *||Title not available|
|GB758311A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2968442 *||Feb 4, 1959||Jan 17, 1961||Grabski John D||Turbine type foam or water nozzle for fire fighting|
|US3082960 *||Dec 27, 1960||Mar 26, 1963||Swan Harold A||Fire hose nozzle|
|US3485451 *||Nov 13, 1967||Dec 23, 1969||Chicago Specialty Mfg Co||Shower head|
|US3804336 *||Dec 22, 1972||Apr 16, 1974||Koeppe D||Stabilized fire hose nozzle|
|US3921651 *||Nov 8, 1974||Nov 25, 1975||Adamation Inc||Pot-washing machine|
|US4173308 *||Apr 24, 1978||Nov 6, 1979||Loucas Savvides||Sprinklers|
|US5810259 *||May 23, 1996||Sep 22, 1998||Environmental Engineering Concepts, Inc.||Fluid spray nozzle comprising an impeller with means to simplify removal and replacement of said impeller|
|US6257212||Sep 20, 2000||Jul 10, 2001||Rudy W. Hammond||Mechanical fuel gasification|
|US20060219811 *||Mar 7, 2006||Oct 5, 2006||Spraytex, Inc.||Fan actuator|
|WO2001023097A1 *||Sep 25, 2000||Apr 5, 2001||Seacor Smit Inc||Turbo-nozzle monitor system for dispersant application|
|U.S. Classification||239/383, 239/462|
|International Classification||B05B1/12, B05B3/02, B05B1/00, B05B3/04|
|Cooperative Classification||B05B3/0427, B05B1/12|
|European Classification||B05B3/04C2H1, B05B1/12|