Source: http://www.google.com/patents/USRE39767?ie=ISO-8859-1
Timestamp: 2015-04-18 09:20:56
Document Index: 490545383

Matched Legal Cases: ['art 312', 'art 312', 'art 312', 'art 312', 'art 312', 'art 312', 'art 312']

Patent USRE39767 - Swirl unit, orifice plate, and spray nozzle including same - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsIn a spray nozzle (10), a carrier (12) defines a spray aperture (20), a groove (30) surrounding the spray aperture for receiving an o-ring (32), a first locating bore (26) for slidably receiving an orifice plate (14) seated against the o-ring (32) and for aligning the orifice plate with the spray aperture,...http://www.google.com/patents/USRE39767?utm_source=gb-gplus-sharePatent USRE39767 - Swirl unit, orifice plate, and spray nozzle including sameAdvanced Patent SearchPublication numberUSRE39767 E1Publication typeGrantApplication numberUS 10/373,597Publication dateAug 14, 2007Filing dateFeb 25, 2003Priority dateSep 3, 1997Fee statusPaidAlso published asEP0935499A1, EP0935499A4, US5934569, US6193172, USRE41864, WO1999011382A1Publication number10373597, 373597, US RE39767 E1, US RE39767E1, US-E1-RE39767, USRE39767 E1, USRE39767E1InventorsLincoln S. Soule, Douglas J. Dziadzio, Mark W. Yorns, Paul J. Mueller, Daniel T. deLesdernier, Thomas A. Bassett, Shane Taylor, Matthew P. BetsoldOriginal AssigneeBete Fog Nozzle, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (10), Referenced by (7), Classifications (8), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetSwirl unit, orifice plate, and spray nozzle including same
US RE39767 E1Abstract
19. A spay nozzle as defined in claim 14, further comprising at least one nozzle body and wherein the nozzle body is received within the carrier on an approximately opposite side of the swirl unit relative to the orifice plate, the nozzle body defines at least one fluid conduit coupled in fluid communications with the fluid passageway and the swirl chamber for introducing fluid through the swirl unit and orifice plate, and the nozzle body is engageable with the swirl unit for securing the swirl unit and orifice plate within the carrier.
a first end surface engageable with an orifice plate received within the carrier adjacent to the first locating surface section; a second end surface axially spaced relative to the first end surface; a peripheral surface formed between the first and second end surfaces, wherein the peripheral surface defines a locating surface section dimensioned for contacting the second locating surface section of the carrier upon inserting the swirl unit therein; at least one recessed surface spaced radially inwardly from the peripheral surface of the swirl unit to thereby define a fluid passageway between the swirl unit and carrier; and a swirl chamber defined by an approximately curvilinear surface, and an inlet port formed in fluid communication between the swirl chamber and fluid passageway and defined at least in part by an inlet surface formed between the curvilinear surface and the recessed surface. 29. A swirl unit as defined in claim 28, wherein the carrier defines a first pair of locating surface sections formed on approximately opposite sides of the carrier relative to each other for receiving an orifice plate, and a second pair of locating surface sections formed on approximately opposite sides of the carrier relative to each other for receiving the swirl unit, and the peripheral surface of the swirl unit defines at least two locating surface sections formed on approximately opposite sides of the swirl unit relative to each other and dimensioned for contacting the second locating surface sections of the carrier upon inserting the swirl unit therein.
30. A swirl unit as defined in claim 28, wherein the recessed surface is defined by an approximately planar surface formed on the peripheral surface.
31. A swirl unit as defined in claim 28, in further combination with an orifice plate defining a first surface located on one side of the orifice plate and engageable with the carrier, a second surface axially spaced relative to the first surface and engageable with the first end surface of the swirl unit, a spray orifice formed through the orifice plate, and a peripheral surface formed between the first and second surfaces and dimensioned for contacting the first locating surface section upon inserting the orifice plate into the carrier.
32. A combination as defined in claim 31, further comprising a retaining member defining a retaining surface engageable with the second end surface of the swirl unit for retaining the swirl unit and orifice plate within the carrier.
33. A combination as defined in claim 32, further comprising a sealing member seated between the orifice plate and carrier and forming an approximately fluid-tight seal therebetween. 34. A combination as defined in claim 33, wherein the carrier, retaining member, sealing member, orifice plate and swirl unit are locked in a subassembly that can be turned in any direction without the sealing member, orifice plate and swirl unit falling out of the carrier.
35. A combination as defined in claim 33, further comprising a nozzle body threadedly engaged with the carrier and defining at least one fluid conduit coupled in fluid communication with the fluid passageway and the swirl chamber for introducing fluid through the swirl unit and orifice plate.
36. A swirl unit as defined in claim 28, wherein the recessed surface is defined by a flat.
37. A combination as defined in claim 31, wherein the orifice plate defines a first peripheral surface and a second peripheral surface second inwardly from the first peripheral surface.
38. A swirl unit as defined in claim 28, wherein the second locating surface section of the carrier is spaced on an opposite side of the first locating surface section relative to the spray aperture, and the locating surface section of the peripheral surface of the swirl unit contacts the second locating surface section of the carrier upon inserting the swirl unit therein to align the swirl unit within the carrier.
39. A swirl unit for a spray nozzle, wherein the spray nozzle includes a carrier defining a spray aperture on one end for emitting a spray, at least one locating bore defining a first locating surface section for receiving an orifice plate and a second locating surface section for receiving a swirl unit, wherein the swirl unit comprises:
a first end surface engageable with an orifice plate received within the locating bore and contacting the first locating surface section; a second end surface axially spaced relative to the first end surface; a peripheral surface formed between the first and second end surfaces; first means for contacting the second locating surface section of the bore upon inserting the swirl unit therein and aligning the swirl unit with the spray aperture; second means for receiving fluid through the swirl unit, and discharging fluid in a swirling pattern therefrom; and third means spaced radially inwardly relative to the first means for defining a fluid passageway between the swirl unit and carrier coupled in fluid communication with the second means to direct fluid into the second means and, in turn, discharge the fluid in a swirling pattern therefrom. 40. A swirl unit as defined in claim 39, wherein the first means is defined by at least two locating surface sections formed on approximately opposite sides of the peripheral surface relative to each other, and approximately defined by a radius for contacting the second locating surface section of the carrier upon inserting the swirl unit therein.
41. A swirl unit as defined in claim 39, in further combination with an orifice plate defining a first surface engageable with the carrier, a second surface axially spaced relative to the first surface and engageable with the first end surface of the swirl unit, a spray orifice formed through the orifice plate, and a peripheral surface formed between the first and second surfaces and dimensioned for contacting the first locating surface section upon inserting the orifice plate into the carrier.
42. A combination as defined in claim 41, further comprising a retaining member defining a retaining surface engageable with the second end surface of the swirl unit for retaining the swirl unit and orifice plate within the carrier.
43. A combination as defined in claim 42, further comprising a sealing member seated between the orifice plate and carrier and forming an approximately fluid-tight seal therebetween. 44. A combination as defined in claim 43, wherein the carrier, retaining member, sealing member, orifice plate and swirl unit are locked in a subassembly that can be turned in any direction without the sealing member, orifice plate and swirl unit falling out of the carrier.
45. A swirl unit as defined in claim 39, wherein the third means is defined by at least one recessed surface spaced radially inwardly relative to the first means to thereby define the fluid passageway between the swirl unit and carrier.
46. A swirl unit as defined in claim 45, wherein said at least one recessed surface is approximately planar.
47. A swirl unit as defined in claim 39, wherein the second means includes a swirl chamber defined by at least one approximately curvilinear surface, and an inlet port formed in fluid communication between the swirl chamber and fluid passageway.
48. A spray nozzle, comprising:
a carrier defining a spray aperture on one end for emitting a spray, a first locating surface section formed on the carrier for contacting and aligning the orifice plate within the carrier, and a second locating surface section formed on the carrier for contacting and aligning a swirl unit within the carrier; an orifice plate defining a first surface engageable with the carrier, a second surface axially spaced relative to the first surface, a spray orifice formed through the orifice plate, and a peripheral surface formed between the first and second surfaces and dimensioned for contacting the first locating surface section upon insertion of the orifice plate into the carrier; and a swirl unit including a first end surface engageable with the orifice plate received within the carrier adjacent to the first locating surface section, a second end surface axially spaced relative to the first end surface, a peripheral surface formed between the first and second end surfaces and defining a locating surface section dimensioned for contacting the second locating surface section of the carrier upon insertion of the swirl unit therein, at least one recessed surface spaced radially inwardly from the locating surface section of the swirl unit to thereby define a fluid passageway between the swirl unit and carrier; a swirl chamber defined by at least one curvilinear surface formed within the swirl unit, and an inlet port formed in fluid communication between the swirl chamber and fluid passageway and defined at least in part by an inlet surface formed between the at least one curvilinear surface and the recessed surface. 49. A spray nozzle as defined in claim 48, wherein the second locating surface section of the carrier is formed by a locating bore approximately defined by a first radius, and the peripheral surface of the swirl unit is defined at least in part by a second radius selected for contacting the second locating surface section upon inserting the swirl unit into the bore.
50. A spray nozzle as defined in claim 48, wherein the recessed surface is defined by an approximately planar surface formed on the peripheral surface.
51. A spray nozzle as defined in claim 48, further comprising a retaining member defining a retaining surface engageable with the second end surface of the swirl unit for retaining the swirl unit and orifice plate within the carrier.
52. A spray nozzle as defined in claim 51, further comprising a sealing member seated between the orifice plate and carrier and forming an approximately fluid-tight seal therebetween. 53. A spray nozzle as defined in claim 52, wherein the carrier, retaining member, sealing member, orifice plate and swirl unit are locked in a subassembly that can be turned in any direction without the sealing member, orifice plate and swirl unit falling out of the carrier.
54. A spray nozzle as defined in claim 53, further comprising at least one nozzle body threadedly engaged to the carrier and defining at least one fluid conduit coupled in fluid communication with the fluid passageway and the swirl chamber for introducing fluid through the swirl unit and orifice plate.
55. A swirl unit as defined in claim 28, wherein the peripheral surface extends axially from the first end surface to the second end surface.
FIG. 19 is an enlarged cross-secitonal view of the swirl unit of the spray nozzle of FIG. 17.
In FIGS. 1-3, a spray nozzle embodying the present invention is indicated generally by the reference numeral 10. The spray nozzle 10 comprises a carrier 12, an orifice plate 14 and swirl unit 16 slidably received and retained within the carrier, and a nozzle body 18 secured within the carrier behind the swirl unit and orifice plate. The carrier 12 defines on its downstream end a spray aperture 20, and a conical-shaped exit surface 22 formed between the spray aperture and adjacent end surface 24 of the carrier for emitting an approximately conical-shaped spray pattern. The terms �upstream� and �downstream� are used herein with the understanding that the fluid will flow through the spray nozzle in the direction indicated by the arrows in FIG. 1, i.e., the fluid will enter from the upstream end of the nozzle body 18 and exit through the spray aperture 20 at the downstream end of the carrier 12.
As shown more clearly in FIG. 4, the carrier 12 further defines a first locating bore 26 formed adjacent to the spray aperture 20 and approximately defined by a first radius �R1� for slidably receiving the orifice plate 14, and a second locating bore 28 formed adjacent to the first locating bore and approximately defined by a second radius �R2� for slidably receiving the swirl unit 16. A groove 30 is formed within the base surface 31 of the first locating bore 26 and extends about the periphery of the spray aperture 20 for receiving a sealing member 32, such as an o-ring or like gasket, and the sealing member forms an approximately fluid-tight seal between the orifice plate and carrier.
The spray nozzle 10 further includes means for retaining the orifice plate 14 and swirl unit 16 within the carrier 12. In the preferred embedment of the invention, the means for retaining includes a pair of retaining lugs or like retaining members 34 formed adjacent to the opposite end of the second locating bore 28 relative to the first locating bore 26. As shown typically in FIG. 12, the two retaining lugs 34 are angularly spaced relative to each other and project inwardly a predetermined distance �d1�. As shown in FIG. 4, each retaining lug 34 defines an approximately planar retaining surface 41 for engaging the adjacent end surface of the swirl unit and retaining the swirl unit and orifice plate within the carrier.
As will be recognized by those skilled in the pertinent art, the retaining members and/or retaining surfaces may take any of numerous different shapes and configurations for purposes of retaining the swirl unit and orifice plate within the carrier in accordance with the present invention. For example, the retaining surfaces 41 may be inclined or ramped in order to facilitate engaging and retaining the swirl unit within the carrier. Similarly, a different number of retaining members and/or retaining surfaces may be employed. For example, a single retaining surface may be employed, or alternatively, additional retaining members may be provided. In each case, a corresponding recess wil be formed on the swirl unit for each retaining surface in order to clear the retaining surfaces upon inserting the swirl unit into the carrier, as is described further below.
The peripheral surface 50 defines at least two locating surfaces (or surface sections) formed on opposite sides of the orifice plate 14 relative to each other, and dimensioned to slidably contact the interior surface forming the first locating bore 26 upon inserting the orifice plate 14 within the bore to thereby support the orifice plate 14 and align the orifice 46 with the spray aperture 20. In the embodiment of the present invention illustrated, the peripheral surface 50 has a circular shape defined by a radius �R3� which is approximately equal to (but slightly less than) the first radius �R1� of the first locating bore 26, and therefore the locating surface sections are formed by the continuous peripheral surface in order to slidably receive and retain the orifice plate 14 within the bore. The clearance between the radii R1 and R3 is preferably within the range of approximately 0.0005 through 0.0035 inch. As will be recognized by those skilled in the pertinent art, the peripheral surface 50 may take any of numerous different shapes and configurations, and the locating surfaces (or surface sections) may likewise take other shapes and configurations for purposes of supporting and aligning the orifice plate 14 within the carrier 12.
As shown in FIGS. 5-8, the swirl unit 16 defines a first (or downstream) approximately planar end surface 52 engageable with the adjacent surface 44 of the orifice plate 14 received within the first locating bore 26, and a second (or upstream) approximately planar end surface 54 axially spaced relative to the first end surface. A peripheral surface 56 extends between the first and second end surfaces 52 and 54, respectively, and defines at least two locating surfaces (or surface sections) formed on approximately opposite sides of the swirl unit 16 relative to each other and dimensioned for slidably contacting the interior surface defining the second locating bore 28 upon inserting the swirl unit therein for supporting and aligning the swirl unit 16. A tapered surface, bevel or chamber 57 is formed at the junction of the peripheral surface 56 and the first end surface 52 for facilitating insertion of the swirl unit into the second locating bore 28. In the preferred embodiment, the peripheral surface 56 has a circular shape defined by a radius �R4� which is approximately equal to (but slightly less than) the second radius �R2� of the second locating bore 28, and therefore the at least two locating surface sections are formed by the continuous peripheral surface. The clearance between the radii R2 and R4 is preferably within the range of approximately 0.0035 through 0.0060 inch. As will be recognized by those skilled in the pertinent art, the peripheral surface 56 may take any of numerous different shapes and configurations, and therefore the locating surfaces (or surface sections) may likewise take other shapes and configurations for purposes of supporting and aligning the swirl unit 16 within the carrier 12.
The swirl unit 16 further defines at least one recessed surface 58 spaced radially inwardly a distance �d2� from the radius R4 defining the peripheral surface 56. The distance d2 is greater than the distance d1 defined by the retaining lugs 34 in order to clear the lugs with the recessed surface 58 upon inserting the swirl unit into the second locating bore 28. In the preferred embodiment, the recessed surface 58 is defined by a flat formed on the peripheral surface 56 and therefore is approximately planar. However, as will be recognized by those skilled in the pertinent art, the recessed surface 58 (or surfaces) may take any of numerous other shapes and configurations without departing from the scope of the present invention.
The assembly of the nozzle 10 proceeds in two stages. The first stage shown in FIGS. 9-12 allows the o-ring 32, orifice plate 14 and swirl unit 16 to be positively located in relation to each other and fixedly secure and aligned within the carrier 12, and the second stage shown in FIG. 1 completes the assembly with the nozzle body 18 fixedly secured within the carrier behind the swirl unit and orifice plate. To begin the first stage of assembly, and with reference to FIG. 9, the o-ring 32 is inserted into the groove 30 of the carrier 12 and the orifice plate 14 is inserted within the first locating bore 26 behind the o-ring. The chamber 51 guides the orifice plate into position so that the radius R3 of the peripheral surface 50 will locate the orifice plate concentrically within the carrier. Next, as shown in FIG. 10, the recessed surface or flat 58 of the swirl unit 16 is aligned with the retaining lugs 34 of the carrier and the swirl unit is inserted into the guide bore 38 and second locating bore 28 until the first end surface 52 thereof contacts the orifice plate 14. At this point, the second end surface 54 of the swirl unit is not in clearance of the retaining surfaces 41 of the retaining lugs 34. Accordingly, a screw driver or like tool (not shown) is then inserted into the slot 68 forming the tool-engaging surface of the swirl unit 16, and sufficient axial force is imparted by the screw driver to compress the o-ring 32 and in turn cause the swirl unit to move further into the first locating bore 28 until the second end surface 54 of the swirl unit is in clearance to the retaining surfaces 41 of the retaining lugs 34. Then, as shown in FIG. 12, the screw driver and swirl unit 16 are rotated approximately 90� in order to move the flat 58 of the swirl unit out of alignment with the retaining lugs 34. The axial force of the screw driver is then released, allowing the o-ring 32 to expand and move the swirl unit 16 until its second end surface 54 engages the retaining surfaces 41 of the retaining lugs 34. As shown in FIGS. 11 and 12, the carrier 12, o-ring 32, orifice plate 14, and swirl unit 16 are then locked in a subassembly that can be turned in any direction without the o-ring, orifice plate and swirl unit falling out of the carrier.
As shown in FIGS. 14 and 15, the swirl unit 116 includes a first peripheral surface 156 defined by the radius �R4� which is approximately equal to (but slightly less than) the second radius �R2� of the second locating bore 128 of the carrier 112. As shown in FIG. 13, the carrier 112 defines retaining lugs or like retaining members 134 formed on diametrically opposite sides of the carrier relative to each other. Accordingly, as shown best in FIG. 14, the swirl unit 116 defines a pair of corresponding recessed surfaces or flats 158 for clearing the retaining lugs upon inserting the swirl unit into the carrier. As shown best in FIG. 15, the swirl unit 116 further includes a second peripheral surface 159 defined by a radius �R5� which is less than the radius �R4� of the first peripheral surface 156, and a conical surface 157 formed between the second peripheral surface and the downstream end surface 152. A plurality of slots 161 defining fluid passageways (at least two) are formed within the conical surface 157 and extend at least partially along the second peripheral surface 159. As shown in FIGS. 14 and 15, the slots 161 are angularly spaced relative to each other, and each is formed at a compound angle with respect to the axis of the swirl unit 116. Accordingly, as described further below, the angled slots 161 cause the fluid to rotate or swirl upon passage therethrough.
As shown in FIG. 13, the orifice plate 114 includes a first peripheral surface 150 defined by a radius �R3� which is approximately equal to (but slightly less than) the first radius �R1� of the first locating bore 126 of the carrier 112 in order to slidably receive and retain the orifice plate within the first locating bore. A second peripheral surface 151 is formed between the first peripheral surface 150 and the downstream end surface 142, and is spaced inwardly from the first peripheral surface for receiving thereabouts the o-ring or like sealing member 132 in order to form a fluid-tight seal between the orifice plate and carrier. This feature is particularly advantageous for lower-flow nozzles in which the diameters of the carrier and orifice plate are relatively small and it is impractical to manufacture a groove in the carrier itself for receiving the o-ring 132.
As shown in FIG. 13, the orifice plate 114 further defines a conical-shaped inlet surface 153 formed between the orifice 146 and upstream end surface 144, and which defines a contour substantially conforming to the contour of the conical surface 157 of the swirl unit 116. Accordingly, as shown in FIG. 16, upon inserting the swirl unit 116 into the secure locating bore 128 of the carrier 112, the conical surface 153 of the orifice plate 114 receives and conformably contacts the conical surface 157 of the swirl unit 116. As a result, a swirl chamber 160 is formed within the space between the downstream end surface 152 of the swirl unit and the orifice 146 of the orifice plate. In addition, an annular chamber 163 is formed between the second peripheral surface 159 of the swirl unit 116 and the second locating bore 128 of the carrier 112 for receiving the fluid prior to passage through the slots 161 and swirl chamber 160.
In FIGS. 17-20 another spray nozzle embodying the present invention is indicated generally by the reference number 210. The spray nozzle 210 is substantially the same as the spray nozzles 10 and 110 described above, and therefore like reference numerals preceded by the numeral �2�, or preceded by the numeral �2� instead of the numeral �1�, are used to indicate like elements. The primary difference between the spray nozzle 210 and the spray nozzles described above is that the spray nozzle 210 does not include the retaining lugs or like retaining members 34, 134 to retain the swirl unit 216 and orifice plate 214 within the carrier 212. Rather, the swirl unit and orifice plate are fixedly secured within the carrier by the nozzle body 218 upon threadedly securing the nozzle body within the carrier. Otherwise, the nozzle body, carrier, swirl unit and orifice plate are essentially the same as the corresponding components in one or more of the above-described embodiments of the invention.
In addition, like the embodiments of FIGS. 13-16, the orifice plate 214 defines a second peripheral surface 251 formed between the first peripheral surface 250 and downstream end surface 242 to thereby define a peripheral groove on the orifice plate for receiving the o-ring or like sealing member 232. One advantage of this feature of the nozzles 110 and 210 is that the base surface 131, 231 of the respective carrier need not define an o-ring or similar groove, like the groove 30 of the nozzle 10 of FIG. 1. As a result, the base surface of the respective carrier can be approximately planar, thus facilitating the ability to clean particles or other debris from the base surface of the carrier that otherwise might become lodged or embedded within a relatively narrow o-ring or like groove.
In FIGS. 21 and 22 another spray nozzle embodying the present invention is indicated generally by the reference numeral 310. The spray nozzle 310 is substantially the same as the spray nozzle 210 described above, and therefore like reference numerals preceded by the numeral �3� instead of the numeral �2� are used to indicate like elements. The primary difference between the spray nozzle 310 and the spray nozzles described above is that the carrier is formed in two parts, 312A and 312B. As shown, the first carrier part 312A includes the above-described features for receiving the swirl unit 316, orifice plate 314 and o-ring 332, and the second carrier part 312B includes the above-described features for threadedly retaining the nozzle body (not shown) within the carrier. The first carrier part 312A defines an outwardly projecting lip 390, and the second carrier part 312B defines a corresponding inwardly projecting lip 392. The nozzle 310 is assembled by slidably moving the first carrier part 312A into the second carrier part 312B until the corresponding lips 390, 392 engage one another to thereby seat the first carrier part within the second carrier part, as illustrated in FIG. 21. The swirl unit 316, orifice plate 314 and o-ring 332 may be installed within the first carrier part 312A either before or after insertion of the first carrier part into the second carrier part. Then, the components of the nozzle assembly are fixedly secured together by threadedly receiving the nozzle body (not shown) within the first and second carrier parts in the same manner that the nozzle body 218 is threadedly received within the carrier 212 of nozzle 210 as described above.
As will be recognized by those skilled in the pertinent art, numerous changes or modifications may be made to the above-described and other embodiments of the present invention without departing from its scope as defined in the appended claims. For example, as indicated in broken lines in FIG. 12, the carrier 12 may include a second pair of retaining lugs 34 formed on the opposite side of the carrier relative to the first pair of retaining lugs, and the swirl unit 16 unit may include a second recessed surface or flat 58 for clearing the second pair of lugs. As described above, the retaining surface(s) and corresponding recessed surface(s) on the swirl unit may take any of numerous different shapes and configurations. Similarly, it may be desirable to form the carrier 12 in two parts as described above in connection with FIGS. 21 and 22, wherein the first carrier part may include the above-descried features for retaining the swirl unit, orifice plate and o-ring, the second carrier part may include the above-described features for retaining the nozzle body, and one or both of the carrier parts may include means for fixedly securing the parts together (such as a flange on one part and a threaded retaining nut on the other). In addition, although the first and second locating bores of the carrier are each defined in the preferred embodiments by cylindrical surfaces, each bore may equally be formed by a surface defining another shape, such as an oval or other more unique configuration. In each case, the peripheral surfaces of the swirl unit and/or orifice plate would define at least two locating surfaces dimensioned to be slidably received within the respective bore in the manner described above in order to support and align the respective wear component within the carrier. As also indicated above, the swirl unit and/or orifice plate may take any of numerous different configurations for purposes of rotating or swirling the fluid, or otherwise manipulating the fluid flow in a manner intended to achieve a desired result. Accordingly, this detailed description of preferred embodiments is to be taken in an illustrative, as opposed to a limiting sense.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS3304013Jun 3, 1965Feb 14, 1967Spraying Systems CoSpray nozzlesUS3680793Nov 9, 1970Aug 1, 1972Delavan Manufacturing CoEccentric spiral swirl chamber nozzleUS3887137Apr 8, 1974Jun 3, 1975Lion Fat Oil Co LtdCentrifugal pressure nozzleUS4367847Dec 29, 1980Jan 11, 1983Precision Valve CorporationOne-piece mechanical break up (MBU)US5152463Oct 8, 1991Oct 6, 1992Delavan Inc.Aspirating simplex spray nozzleUS5333790Apr 20, 1992Aug 2, 1994Christopher Gilman OQuick disconnect nozzle apparatusUS5358179Aug 18, 1993Oct 25, 1994The Procter & Gamble CompanyAtomization systems for high viscosity productsUS5421522Sep 24, 1993Jun 6, 1995Bex Engineering Ltd.Nozzle assemblyUS5934569Sep 3, 1997Aug 10, 1999Bete Fog Nozzle, Inc.Fluid nozzle having a swirl unit and orifice plate, and means for facilitating assembly thereofUSRE30004Aug 29, 1977May 22, 1979Delavan CorporationLow drift spray nozzleReferenced byCiting PatentFiling datePublication dateApplicantTitleUS8690081 *Jun 14, 2011Apr 8, 2014Aptar France SasFluid dispenser headUS8800676 *Jul 3, 2010Aug 12, 2014Shaanxi J & R Fire Fighting Co., Ltd.Hand-held aerosol fire suppression apparatusUS8820665 *Jun 18, 2008Sep 2, 2014S.C. Johnson & Son, Inc.Fluid dispensing nozzleUS20090078793 *Jun 18, 2008Mar 26, 2009S.C. Johnson & Son, Inc.Fluid Dispensing NozzleUS20110303768 *Jun 14, 2011Dec 15, 2011Valois S.A.S.Fluid dispenser headUS20120279733 *Jul 3, 2010Nov 8, 2012Shaanxi J & R Fire Fighting Co., Ltd.Novel hand-held aerosol fire suppression apparatusUSRE41864 *Aug 13, 2007Oct 26, 2010Bete Fog Nozzle, Inc.Swirl unit, orifice plate, and spray nozzle including same* Cited by examinerClassifications U.S. Classification239/468, 239/490, 239/505International ClassificationB05B1/34Cooperative ClassificationB05B1/3436, B05B1/3442European ClassificationB05B1/34A3B4B, B05B1/34A3B4DLegal EventsDateCodeEventDescriptionOct 8, 2012REMIMaintenance fee reminder mailedAug 28, 2008FPAYFee paymentYear of fee payment: 8Aug 28, 2008SULPSurcharge for late paymentYear of fee payment: 7RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services