US3920187A - Spray head - Google Patents
Spray head Download PDFInfo
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- US3920187A US3920187A US472970A US47297074A US3920187A US 3920187 A US3920187 A US 3920187A US 472970 A US472970 A US 472970A US 47297074 A US47297074 A US 47297074A US 3920187 A US3920187 A US 3920187A
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- bore
- nozzle
- section
- driver
- liquid
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/38—Nozzles; Cleaning devices therefor
- F23D11/383—Nozzles; Cleaning devices therefor with swirl means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/28—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
Definitions
- a spray head comprising a driver section and a nozzle section.
- the driver section has a central hub carrying helical vanes mounted in the bore of a generally tubular housing. The liquid to be atomized enters the housing bore, flows over the hub to form an annular sheet, and is caused by the vanes to rotate helically.
- the nozzle is connected to the housing at its downstream end. It comprises a generally tubular body whose bore communicates with the housing bore. A circumferential row of axially extending ridgelike members extend into the nozzle bore from the bore surface at the nozzle outlet. Individual portions of the annular sheet of liquid each contact a face of one of the ridge-like members and are deflected to form a sheet of liquid egressing from the nozzle outlet. These latter sheets spread and form spray.
- a hydraulic spray head is here defined as one which requires only the hydraulic power in the liquid stream being atomized to accomplish atomization; it does not require another power source such as compressed air or a motor-driven impellor.
- Hydraulic spray heads of the prior art have deficiencies that limit their usefulness in some applications, such as in burners. If designed to finely atomize and disperse throughout a solid angle, then multiple small ports are frequently used; these ports tend to plug up easily. If a single large port is used, as in the typical vortex-type spray head, then only a wide-angle hollow cone spray will yield fine atomization. If the spray head is constructed to vary the flow rate by varying the outlet orifice area, then a moving part in the head is required; this may be undesirable in a burner. If the spray head is constructed without moving parts, then the spray velocity decreases as the flow rate decreases, causing the droplet size to increase; this severely limits the range of flow within which the desired spray characteristics can be produced.
- a spray head which combines two principal sections, ie a driver and a nozzle.
- the driver accepts the liquid that is to be atomized and forms it into a helically flowing annular sheet.
- the nozzle receives this sheet and utilizes a series of spaced deflecting faces, which intercept the flow, to deflect individual portions thereof to form individual sheets of spray.
- the patternof the spray which is formed can be controlled by the attitude and/or shape of the deflecting faces.
- a third section, called a modifier is sometimes included between the driver and the nozzle. The modifier changes the direction of flow of the liquid in the helically flowing annular sheet, helping to produce the desired spray'pattern.
- the spray head produces a finely atomized liquid spray dispersed throughout a small solid angle.
- the device is relatively free of plugging and is capable of performing through a relatively wide range of flow.
- FIG. I is a longitudinal cutaway view of a spray head in accordance with the invention.
- FIG. 2 is a cross section of the nozzle of the spray head'taken along the line AA of FIG. 1;
- FIG. 3 is an illustration of a deflecting face, such as appear in FIG. 2, in use with a stream of liquid contacting it; I I
- FIG. 4 is a longitudinal cutaway view of an alterna tive embodiment of the spray head
- FIG. 5 is across section of the modifier, taken along the line BB in FIG. 4;
- FIG. 6 is a cross section of the vortex mixer portion of the spray head shown in FIG. 4, and illustrates the disposition of the primary inlet ports;
- FIG. 7 is a cross section along the line DD of the Vortex mixer shown in FIG. 4, and illustrates the disposition of the secondary inlet ports;
- FIG. 8 is a longitudinal cutaway view of a second embodiment of the spray head
- FIG. 9 is a cross section along the line EE of FIG. 8;
- FIG. 10 is across section taken along the line FF of FIG. 8;
- FIG. 11 is a diagram of a typical piping arrangement for use in association with the vortex-mixer type spray head shown in FIGS. 4 and 8.
- DESCRIPTION OF THE PREFERRED EMBODIMENT driver la includes a housing 1c defining a bore or inlet chamber .2.
- One or more fixed, twist-inducing, helical vanes 6 are positioned within the bore 2; a hub 7 is centrally positioned within the vanes 6.
- the bore 2 extends to and communicates with the throat 3, which leads into the nozzle bore 4.
- the surface 4a of the nozzle bore is preferably outwardly flared.
- a plurality of ridge like members 5a, each having a deflecting face 5, are disposed in a circumferential row at or near the outlet 30 of the nozzle 11). The deflecting faces 5 project inwardly from the nozzle bore surface 4a.
- Pipe thread 8 and wrench flats 9 are provided for convenience in installing the spray head.
- the incoming fluid entering the inlet chamber 2 flows around the hub 7 to form an annular sheet which is directed into helical motion by the fixed vanes 6.
- the rotating sheet moves through the throat 3 into. the nozzle bore 4; individual portions of the sheet each then contact a deflecting face Sand are deflected, as depicted in FIG. 3. As these deflected sheets leave the nozzle lb, they spread and form sheets of spray.
- a body 1 consisting of two parts screwed together, comprises driver, nozzle and modifier.
- the driver is a vortex mixer and comprises a vortex chamber 14 having primary inlet ports 10 communicating tangentially therewith through the wall 40 of the body 1.
- a secondary inlet system comprising tangential secondary inlet ports 11, secondary inlet chamber 12, and annular passageway 13, also leads through the wall 40 and communicates with the vortex chamber 14.
- the chamber 14 has ends 14a, 14b and a periphery 14c between the ends.
- An axial opening 41 leads fromthe chamber 14 into the throadt 3 and nozzle bore 4.
- the nozzle lb is identical to that of FIG. 1.
- a modifier comprising helical vanes 6 extending inwardly from the surface of the throat 3.
- a fluid such as air or steam or natural gas, other than the spray fluid, may be injected through axial port 15 to mix with the spray. Wrench holes 16 facilitate disas- 3 sembly.
- FIG. 8 Another alternative embodiment of the invention is shown in FIG. 8.
- each feature of the spray head that affects spray head performance is contained in a separate part.
- the nozzle is identical with the nozzle 1, but is removable.
- the modifier is identical with the modifier of FIG. 4, but is also removable.
- the driver is of the vortex-mixer type and functions like the driver of FIG. 4, but is constructed differentlyPrimary inlet ports lead into vortex chamber 14 through primary insert sleeve 22.
- Secondary inlet ports 11 are angled slots leading into annular passageway 13 through secondary insert 23,.
- Body 1 contains pipe connections 24 and 25 for primary and secondary inlets. Threaded cap 18 holds sealing gasket in place and clamps the spray head together.
- the incoming fluid to be atomized enters vortex chamber 14 tangentially, spirals towards center in an, inwardly-flowing vortex, and exits into throat 3 as a helically flowing annular sheet.
- Part of this fluid enters through primary inlet ports 10, which are relatively small, and the rest of the fluid enters through secondary ports 11, which are relatively large.
- the small primary inlet ports 10 allow only a small flow with a given fluid supply pressure.
- the larger inlet ports 11 allow a larger flow with the same fluid supply pressure.
- the spray head may be hooked up as shown in FIG. 11, with the fluid supply going directly to the small primary inlet ports 10 (pipe connection 24).
- FIGS. 4 through 9 give reasonably good performance and have a flow range of about six to one at constant supply pressure, when hooked up as shown in FIG. 11.
- the direction of flow of the helically flowing annular sheet of fluid issuing from a vortex mixer type driver varies as the ratio of secondary inlet flow to primary inlet flow is varied. This will cause the spray pattern to vary, which may or may not be wanted. If a constant spray pattern is desired,'the direction of flow of the helically flowing annular sheet should be kept from changing; this may be accomplished by the small vanes 6 in throat 3, as shown in FIGS. 4, Sand 8.
- Inner surface 4 should be smooth and as short as possible in order to minimize drag on the fluid and keep the outlet spray velocity high.
- Deflecting faces 5 are disposed according to the spray pattern desired. In order to produce a spray pattern that has no empty center, deflecting faces 5 must be parallel to the nozzles axis of rotation. Deflecting faces 5 may be flat or curved, regular or irregular, as the desired spray pattern dictates. i
- driver section outlet communicating with the nozzle section inlet
- said driver section forms a bore comprising a chamher having ends and a periphery between said ends;
- said driver section further forms an outlet in one of said ends remote from said periphery for transmitting fluid from the chamber into the nozzle bore,
- said driver section further forms a primary inlet, for
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Abstract
A spray head is provided comprising a driver section and a nozzle section. The driver section has a central hub carrying helical vanes mounted in the bore of a generally tubular housing. The liquid to be atomized enters the housing bore, flows over the hub to form an annular sheet, and is caused by the vanes to rotate helically. The nozzle is connected to the housing at its downstream end. It comprises a generally tubular body whose bore communicates with the housing bore. A circumferential row of axially extending ridge-like members extend into the nozzle bore from the bore surface at the nozzle outlet. Individual portions of the annular sheet of liquid each contact a face of one of the ridge-like members and are deflected to form a sheet of liquid egressing from the nozzle outlet. These latter sheets spread and form spray.
Description
[ Nov. 18, 1975 1 1 SPRAY HEAD [75] Inventor: Robin Burke Willis, Corpus Christi,
Tex.
[73] Assignee: Porta-Test Manufacturing Ltd.,
Edmonton, Canada [22] Filed: May 24, 1974 [21] Appl. No.: 472,970
[52] US. Cl. 239/400; 239/403; 239/419;
239/427; 239/487; 239/498; 239/501 [51] Int. Cl. BOSB l/02; B05B 1/34 [58] Field of Search 239/8-10, 7,
1,826,776 10/1931 Gunther 239/8 2,028,899 l/1936 Earl 239/491 X 3,275,248 9/1966 OBrien et a1. 239/487 FOREIGN PATENTS OR APPLICATIONS 77,218 5/1933 Sweden 239/487 Primary ExaminerRobert S. Ward, Jr. Attorney, Agent, or Firm-Ernest Peter Johnson ABSIRACT A spray head is provided comprising a driver section and a nozzle section. The driver section has a central hub carrying helical vanes mounted in the bore of a generally tubular housing. The liquid to be atomized enters the housing bore, flows over the hub to form an annular sheet, and is caused by the vanes to rotate helically. The nozzle is connected to the housing at its downstream end. It comprises a generally tubular body whose bore communicates with the housing bore. A circumferential row of axially extending ridgelike members extend into the nozzle bore from the bore surface at the nozzle outlet. Individual portions of the annular sheet of liquid each contact a face of one of the ridge-like members and are deflected to form a sheet of liquid egressing from the nozzle outlet. These latter sheets spread and form spray.
2 Claims, 1 1 Drawing Figures Sheet 1 of 2 3,920,187
U.S. Patant Nov. 18, 1975 1! D LC SPRAY HEAD BACKGROUND OF THE INVENTION This invention relates to a hydraulic spray head for atomizing a liquid flow.
A hydraulic spray head is here defined as one which requires only the hydraulic power in the liquid stream being atomized to accomplish atomization; it does not require another power source such as compressed air or a motor-driven impellor.
Hydraulic spray heads of the prior art have deficiencies that limit their usefulness in some applications, such as in burners. If designed to finely atomize and disperse throughout a solid angle, then multiple small ports are frequently used; these ports tend to plug up easily. If a single large port is used, as in the typical vortex-type spray head, then only a wide-angle hollow cone spray will yield fine atomization. If the spray head is constructed to vary the flow rate by varying the outlet orifice area, then a moving part in the head is required; this may be undesirable in a burner. If the spray head is constructed without moving parts, then the spray velocity decreases as the flow rate decreases, causing the droplet size to increase; this severely limits the range of flow within which the desired spray characteristics can be produced.
The prior art in this area is exemplified by the following US. Pat. No. 1381095, issued to F. C. Starr; 2000792, issued to V. E. Schmiedeknecht; 2044720, issued to .I Fletcher; 3324891, issued to .I M. Rhoades; 3351080; issued to W. F. Datwyler, Jr., et al; and 3424182, issued to E. A. Mayer.
SUMMARY OF THE INVENTION With the foregoing in mind, it is one object of this invention to provide a spray head capable of producing a finely atomized spray dispersed throughout a relatively small solid angle.
It is another object to provide such a spray head having no moving parts and relatively large orifices, with reduce plugging.
It is a further object to provide a spray head which is adapted to operate over a relatively wide range of feed rates.
In accordance with the invention, a spray head is provided which combines two principal sections, ie a driver and a nozzle. The driveraccepts the liquid that is to be atomized and forms it into a helically flowing annular sheet. The nozzle receives this sheet and utilizes a series of spaced deflecting faces, which intercept the flow, to deflect individual portions thereof to form individual sheets of spray. The patternof the spray which is formed can be controlled by the attitude and/or shape of the deflecting faces. A third section, called a modifier, is sometimes included between the driver and the nozzle. The modifier changes the direction of flow of the liquid in the helically flowing annular sheet, helping to produce the desired spray'pattern.
The spray head produces a finely atomized liquid spray dispersed throughout a small solid angle. The device is relatively free of plugging and is capable of performing through a relatively wide range of flow.
DESCRIPTION OF THE DRAWINGS In the drawings: FIG. I is a longitudinal cutaway view of a spray head in accordance with the invention;
.FIG. 2 is a cross section of the nozzle of the spray head'taken along the line AA of FIG. 1;
FIG. 3 is an illustration of a deflecting face, such as appear in FIG. 2, in use with a stream of liquid contacting it; I I
FIG. 4 is a longitudinal cutaway view of an alterna tive embodiment of the spray head;
FIG. 5 is across section of the modifier, taken along the line BB in FIG. 4;
FIG. 6is a cross section of the vortex mixer portion of the spray head shown in FIG. 4, and illustrates the disposition of the primary inlet ports;
FIG. 7 is a cross section along the line DD of the Vortex mixer shown in FIG. 4, and illustrates the disposition of the secondary inlet ports;
FIG. 8 is a longitudinal cutaway view of a second embodiment of the spray head;
FIG. 9 is a cross section along the line EE of FIG. 8;
FIG. 10 is across section taken along the line FF of FIG. 8;
FIG. 11 is a diagram of a typical piping arrangement for use in association with the vortex-mixer type spray head shown in FIGS. 4 and 8.
DESCRIPTION OF THE PREFERRED EMBODIMENT driver la includes a housing 1c defining a bore or inlet chamber .2. One or more fixed, twist-inducing, helical vanes 6 are positioned within the bore 2; a hub 7 is centrally positioned within the vanes 6. The bore 2 extends to and communicates with the throat 3, which leads into the nozzle bore 4. The surface 4a of the nozzle bore is preferably outwardly flared. A plurality of ridge like members 5a, each having a deflecting face 5, are disposed in a circumferential row at or near the outlet 30 of the nozzle 11). The deflecting faces 5 project inwardly from the nozzle bore surface 4a. Pipe thread 8 and wrench flats 9 are provided for convenience in installing the spray head.
In operation, the incoming fluid entering the inlet chamber 2 flows around the hub 7 to form an annular sheet which is directed into helical motion by the fixed vanes 6. The rotating sheet moves through the throat 3 into. the nozzle bore 4; individual portions of the sheet each then contact a deflecting face Sand are deflected, as depicted in FIG. 3. As these deflected sheets leave the nozzle lb, they spread and form sheets of spray.
An alternative embodiment of the invention is illustrated in FIG. 4. In this case, a body 1, consisting of two parts screwed together, comprises driver, nozzle and modifier. The driver is a vortex mixer and comprises a vortex chamber 14 having primary inlet ports 10 communicating tangentially therewith through the wall 40 of the body 1. A secondary inlet system, comprising tangential secondary inlet ports 11, secondary inlet chamber 12, and annular passageway 13, also leads through the wall 40 and communicates with the vortex chamber 14. The chamber 14 has ends 14a, 14b and a periphery 14c between the ends. An axial opening 41 leads fromthe chamber 14 into the throadt 3 and nozzle bore 4. The nozzle lb is identical to that of FIG. 1. A modifier is provided, comprising helical vanes 6 extending inwardly from the surface of the throat 3. A fluid, such as air or steam or natural gas, other than the spray fluid, may be injected through axial port 15 to mix with the spray. Wrench holes 16 facilitate disas- 3 sembly.
Another alternative embodiment of the invention is shown in FIG. 8. In this version, each feature of the spray head that affects spray head performance is contained in a separate part. The nozzle is identical with the nozzle 1, but is removable. The modifier is identical with the modifier of FIG. 4, but is also removable. The driver is of the vortex-mixer type and functions like the driver of FIG. 4, but is constructed differentlyPrimary inlet ports lead into vortex chamber 14 through primary insert sleeve 22. Secondary inlet ports 11 are angled slots leading into annular passageway 13 through secondary insert 23,. Body 1 contains pipe connections 24 and 25 for primary and secondary inlets. Threaded cap 18 holds sealing gasket in place and clamps the spray head together.
In the drivers of FIGS. 4 and 8, the incoming fluid to be atomized enters vortex chamber 14 tangentially, spirals towards center in an, inwardly-flowing vortex, and exits into throat 3 as a helically flowing annular sheet. Part of this fluid enters through primary inlet ports 10, which are relatively small, and the rest of the fluid enters through secondary ports 11, which are relatively large. The small primary inlet ports 10 allow only a small flow with a given fluid supply pressure. The larger inlet ports 11 allow a larger flow with the same fluid supply pressure. The spray head may be hooked up as shown in FIG. 11, with the fluid supply going directly to the small primary inlet ports 10 (pipe connection 24).
efficient at accomplishing this, because of mechanical,
energy losses through friction-and turbulence in the vortex. In order to achieve reasonably good perfor- The inner surface 4 of the nozzle is usually flared and should lie inside the trajectory that liquid from the I driver or modifier would follow if the nozzle were remance in this respect, some constraints are necessary v FIGS. 4 through 9 give reasonably good performance and have a flow range of about six to one at constant supply pressure, when hooked up as shown in FIG. 11.
The direction of flow of the helically flowing annular sheet of fluid issuing from a vortex mixer type driver varies as the ratio of secondary inlet flow to primary inlet flow is varied. This will cause the spray pattern to vary, which may or may not be wanted. If a constant spray pattern is desired,'the direction of flow of the helically flowing annular sheet should be kept from changing; this may be accomplished by the small vanes 6 in throat 3, as shown in FIGS. 4, Sand 8.
moved. Otherwise irregularities in the helically flowing annular sheet of liquid tend to build up rather than smooth out, which may affect the spray character adversely. Inner surface 4 should be smooth and as short as possible in order to minimize drag on the fluid and keep the outlet spray velocity high.
Deflecting faces 5 are disposed according to the spray pattern desired. In order to produce a spray pattern that has no empty center, deflecting faces 5 must be parallel to the nozzles axis of rotation. Deflecting faces 5 may be flat or curved, regular or irregular, as the desired spray pattern dictates. i
It will be apparent to those skilled in the art that forms of this invention differing from those specifically described and illustrated herein may be made Without departing from the spirit of the invention. It is intended I i that the scope of this invention be limited only by the I nozzle bore having an inlet and an outlet, the outlet end of said nozzle bore being outwardly flared; said driver section having a bore formed there-' through, said driver bore having an inlet and outlet,
said driver section outlet communicating with the nozzle section inlet;
means associated with the driver section for forming liquid and moving said liquid through thedriver,
bore and into the nozzle bore, into a helically flow: I i
ing annular sheet; and a plurality of members associated with the nozzle sec-.
'tion and disposed in a circumferential row at the outlet of the nozzle bore, said members projecting inwardly from the bore surface, each said member having a deflecting face, parallel to the longitudinal axis of the nozzle bore, for deflecting a portion of the helically flowing annular sheet to form an individual sheet of fluid spray; 7 whereby a finely atomized, conical liquid spray dispersed throughout a small solid angle is obtained. 2. The spray head as set forth in claim 1 wherein:
said driver section forms a bore comprising a chamher having ends and a periphery between said ends;
said driver section further forms an outlet in one of said ends remote from said periphery for transmitting fluid from the chamber into the nozzle bore,
and
said driver section further forms a primary inlet, for
admitting liquid into the chamber adjacent to said periphery and in a direction more parallel than perpendicular to said periphery, and a secondaryinlet,
comprising one or more passageways for the admissionof additional liquid to said chamber, at least a I one of said passageways being located adjacent.
said periphery.
connected to-
Claims (2)
1. A spray head comprising: a nozzle section and a driver section connected together; said nozzle section having a bore formed therethrough of substantially circular cross-section, said nozzle bore having an inlet and an outlet, the outlet end of said nozzle bore being outwardly flared; said driver section having a bore formed therethrough, said driver bore having an inlet and outlet, said driver section outlet communicating with the nozzle section inlet; means associated with the driver section for forming liquid and moving said liquid through the driver bore and into the nozzle bore, into a helically flowing annular sheet; and a plurality of members associated with the nozzle section and disposed in a circumferential row at the outlet of the nozzle bore, said members projecting inwardly from the bore surface, each said member having a deflecting face, parallel to the longitudinal axis of the nozzle bore, for deflecting a portion of the helically flowing annular sheet to form an individual sheet of fluid spray; whereby a finely atomized, conical liquid spray dispersed throughout a small solid angle is obtained.
2. The spray head as set forth in claim 1 wherein: said driver section forms a bore comprising a chamber having ends and a periphery between said ends; said driver section further forms an outlet in one of said ends remote from said periphery for transmitting fluid from the chamber into the nozzle bore; and said driver section further forms a primary inlet, for admitting liquid into the chamber adjacent to said periphery and in a direction more parallel than perpendicular to said periphery, and a secondary inlet, comprising one or more passageways for the admission of additional liquid to said chamber, at least one of said passageways being located adjacent said periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US472970A US3920187A (en) | 1974-05-24 | 1974-05-24 | Spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US472970A US3920187A (en) | 1974-05-24 | 1974-05-24 | Spray head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3920187A true US3920187A (en) | 1975-11-18 |
Family
ID=23877646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US472970A Expired - Lifetime US3920187A (en) | 1974-05-24 | 1974-05-24 | Spray head |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3920187A (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4218855A (en) * | 1978-12-08 | 1980-08-26 | Otto Wemmer | Particulate spray nozzle with diffuser |
| US4248296A (en) * | 1979-08-07 | 1981-02-03 | Resources Conservation Company | Fluid distributor for condenser tubes |
| EP0121877A2 (en) * | 1983-04-06 | 1984-10-17 | BASF Aktiengesellschaft | Spray nozzle in the shape of a hollow cone |
| EP0155971A1 (en) * | 1983-12-01 | 1985-10-02 | Ernst Bröker | Shower head |
| EP0288635A2 (en) * | 1987-04-28 | 1988-11-02 | Kabushiki Kaisha Polyurethane Engineering | Nozzle Assembly |
| US4790480A (en) * | 1986-02-15 | 1988-12-13 | Northern Engineering Industries Plc | Liquid fuel atomiser |
| US5129583A (en) * | 1991-03-21 | 1992-07-14 | The Babcock & Wilcox Company | Low pressure loss/reduced deposition atomizer |
| US20050178565A1 (en) * | 2002-11-19 | 2005-08-18 | Agrotors, Incorporated | Fire line dispersal system |
| US6982002B2 (en) * | 2001-02-14 | 2006-01-03 | Tokyo Electron Limited | Apparatus and method for forming coating film |
| WO2005002735A3 (en) * | 2003-06-30 | 2006-06-15 | John Redding | Improvements in or relating to swirling fluid flows and jets |
| US20100223930A1 (en) * | 2009-03-06 | 2010-09-09 | General Electric Company | Injection device for a turbomachine |
| FR2944460A1 (en) * | 2009-04-21 | 2010-10-22 | Ass Pour La Rech Et Le Dev De | NOZZLE FOR MAXIMIZING THE QUANTITY OF MOTION PRODUCED BY A DIPHASIC FLOW FROM SATURDENT FLOW RELAXATION |
| US8177148B1 (en) | 2006-02-10 | 2012-05-15 | The Toro Company | Irrigation sprinkler with adjustable nozzle trajectory |
| GB2500686A (en) * | 2012-03-29 | 2013-10-02 | Obrist Closures Switzerland | A dispensing closure |
| WO2013177545A1 (en) * | 2012-05-25 | 2013-11-28 | Precision Valve Corporation | Vortex spray generation systems |
| US9221065B1 (en) | 2007-01-22 | 2015-12-29 | The Toro Company | Helical water distribution restrictor |
| US20160258685A1 (en) * | 2013-10-17 | 2016-09-08 | Hatch Pty Ltd. | A dispersion apparatus |
| EP3088802A1 (en) * | 2015-04-29 | 2016-11-02 | General Electric Technology GmbH | Nozzle for a gas turbine combustor |
| US9724302B2 (en) | 2010-04-09 | 2017-08-08 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
| US20180229249A1 (en) * | 2017-02-13 | 2018-08-16 | Ford Global Technologies, Llc | Nozzle for discharging compressed air |
| WO2019084633A1 (en) * | 2017-11-03 | 2019-05-09 | Rivus Ood | Nozzle for saving water |
| US20200407955A1 (en) * | 2019-06-27 | 2020-12-31 | Kwc Ag | Jet regulator |
| US11730149B2 (en) * | 2013-03-15 | 2023-08-22 | Stephen D. Roche | Self-cleaning pre-filter for a water circulation pump |
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| US3275248A (en) * | 1964-08-07 | 1966-09-27 | Spraying Systems Co | Modified full cone nozzle |
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Cited By (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4218855A (en) * | 1978-12-08 | 1980-08-26 | Otto Wemmer | Particulate spray nozzle with diffuser |
| US4248296A (en) * | 1979-08-07 | 1981-02-03 | Resources Conservation Company | Fluid distributor for condenser tubes |
| EP0121877A2 (en) * | 1983-04-06 | 1984-10-17 | BASF Aktiengesellschaft | Spray nozzle in the shape of a hollow cone |
| EP0121877A3 (en) * | 1983-04-06 | 1985-11-13 | Basf Aktiengesellschaft | Spraye nozzle in the shape of a hollow cone |
| EP0155971A1 (en) * | 1983-12-01 | 1985-10-02 | Ernst Bröker | Shower head |
| US4790480A (en) * | 1986-02-15 | 1988-12-13 | Northern Engineering Industries Plc | Liquid fuel atomiser |
| EP0288635A2 (en) * | 1987-04-28 | 1988-11-02 | Kabushiki Kaisha Polyurethane Engineering | Nozzle Assembly |
| EP0288635A3 (en) * | 1987-04-28 | 1989-07-12 | Kabushiki Kaisha Polyurethane Engineering | Nozzle assembly |
| US5129583A (en) * | 1991-03-21 | 1992-07-14 | The Babcock & Wilcox Company | Low pressure loss/reduced deposition atomizer |
| EP0575669A1 (en) * | 1991-03-21 | 1993-12-29 | The Babcock & Wilcox Company | Atomizers and nozzle inserts therefor |
| US6982002B2 (en) * | 2001-02-14 | 2006-01-03 | Tokyo Electron Limited | Apparatus and method for forming coating film |
| US20050178565A1 (en) * | 2002-11-19 | 2005-08-18 | Agrotors, Incorporated | Fire line dispersal system |
| WO2005002735A3 (en) * | 2003-06-30 | 2006-06-15 | John Redding | Improvements in or relating to swirling fluid flows and jets |
| US8177148B1 (en) | 2006-02-10 | 2012-05-15 | The Toro Company | Irrigation sprinkler with adjustable nozzle trajectory |
| US9221065B1 (en) | 2007-01-22 | 2015-12-29 | The Toro Company | Helical water distribution restrictor |
| US20100223930A1 (en) * | 2009-03-06 | 2010-09-09 | General Electric Company | Injection device for a turbomachine |
| FR2944460A1 (en) * | 2009-04-21 | 2010-10-22 | Ass Pour La Rech Et Le Dev De | NOZZLE FOR MAXIMIZING THE QUANTITY OF MOTION PRODUCED BY A DIPHASIC FLOW FROM SATURDENT FLOW RELAXATION |
| WO2010122251A1 (en) * | 2009-04-21 | 2010-10-28 | Association Pour La Recherche Et Le Developpement De Methodes Et Processus Industriels "Armines" | Nozzle capable of maximizing the quantity of movement produced by a two-phase flow through the relief of a saturating flow |
| EP2421657A1 (en) * | 2009-04-21 | 2012-02-29 | Association Pour La Recherche Et Le Développement De Méthodes Et Processus Industriels "Armines" | Nozzle capable of maximizing the quantity of movement produced by a two-phase flow through the relief of a saturating flow |
| CN102405110A (en) * | 2009-04-21 | 2012-04-04 | 工业加工方法研究和发展协会“阿美尼斯” | Nozzle capable of maximizing the quantity of movement produced by a two-phase flow through the relief of a saturating flow |
| AU2010240721B2 (en) * | 2009-04-21 | 2016-08-25 | Association Pour La Recherche Et Le Developpement De Methodes Et Processus Industriels "Armines" | Nozzle capable of maximizing the quantity of movement produced by a two-phase flow through the relief of a saturating flow |
| US9737483B2 (en) | 2010-04-09 | 2017-08-22 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
| US9808424B2 (en) | 2010-04-09 | 2017-11-07 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
| US10398648B2 (en) | 2010-04-09 | 2019-09-03 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
| US10045941B2 (en) | 2010-04-09 | 2018-08-14 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
| US9757336B2 (en) | 2010-04-09 | 2017-09-12 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
| US9737482B2 (en) | 2010-04-09 | 2017-08-22 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
| US9724302B2 (en) | 2010-04-09 | 2017-08-08 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
| US9730892B2 (en) | 2010-04-09 | 2017-08-15 | Pacira Pharmaceuticals, Inc. | Method for formulating large diameter synthetic membrane vesicles |
| GB2500686A (en) * | 2012-03-29 | 2013-10-02 | Obrist Closures Switzerland | A dispensing closure |
| GB2500686B (en) * | 2012-03-29 | 2018-08-08 | Obrist Closures Switzerland | A dispensing closure |
| CN104540598A (en) * | 2012-05-25 | 2015-04-22 | 精密阀门有限公司 | Vortex spray generation systems |
| JP2015526265A (en) * | 2012-05-25 | 2015-09-10 | プレシジョン・バルブ・コーポレーション | Swirl spray generation system |
| WO2013177545A1 (en) * | 2012-05-25 | 2013-11-28 | Precision Valve Corporation | Vortex spray generation systems |
| US11730149B2 (en) * | 2013-03-15 | 2023-08-22 | Stephen D. Roche | Self-cleaning pre-filter for a water circulation pump |
| US10473400B2 (en) * | 2013-10-17 | 2019-11-12 | Hatch Pty Ltd. | Dispersion apparatus |
| US20160258685A1 (en) * | 2013-10-17 | 2016-09-08 | Hatch Pty Ltd. | A dispersion apparatus |
| EP3088802A1 (en) * | 2015-04-29 | 2016-11-02 | General Electric Technology GmbH | Nozzle for a gas turbine combustor |
| US20180229249A1 (en) * | 2017-02-13 | 2018-08-16 | Ford Global Technologies, Llc | Nozzle for discharging compressed air |
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| US20200407955A1 (en) * | 2019-06-27 | 2020-12-31 | Kwc Ag | Jet regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: 361818 ALBERTA LTD., #300, 8657 - 51 AVENUE, EDMON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:PORTA-TEST SYSTEMS, LTD., BY ITS RECEIVER, MANAGER AND AGENT, PEAT MARWICK LIMITED;REEL/FRAME:004807/0953 Effective date: 19870501 Owner name: PORTA - TEST SYSTEM, LTD. Free format text: MERGER;ASSIGNORS:PORTA - TEST ENGINEERING LTD.;PORTA - TEST MANUFACTURING LTD. (INTO);REEL/FRAME:004807/0956;SIGNING DATES FROM 19780501 TO 19870501 Owner name: 361818 ALBERTA LTD., #300, 8657 - 51 AVENUE, EDMON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PORTA-TEST SYSTEMS, LTD., BY ITS RECEIVER, MANAGER AND AGENT, PEAT MARWICK LIMITED;REEL/FRAME:004807/0953 Effective date: 19870501 Owner name: PORTA - TEST SYSTEM, LTD.,STATELESS Free format text: MERGER;ASSIGNORS:PORTA - TEST ENGINEERING LTD.;PORTA - TEST MANUFACTURING LTD. (INTO);SIGNING DATESFROM 19780501 TO 19870501;REEL/FRAME:004807/0956 |