|Publication number||US3647147 A|
|Publication date||Mar 7, 1972|
|Filing date||Dec 23, 1970|
|Priority date||Dec 23, 1970|
|Publication number||US 3647147 A, US 3647147A, US-A-3647147, US3647147 A, US3647147A|
|Inventors||Arnold M Cook|
|Original Assignee||Norton Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Referenced by (86), Classifications (7)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent Cook Mar. 7, 1972  SPRAY NOZZLE ORIFICE MEMBER- FORElGN PATENTS 0R APPLICATIONS v  Inventor: Arnold M. Cook, Holden, Mass. 514,734 7/1955 Canada; ..239/566 Assigneez Norton p y Worcester Mass. 665,016 1/1952 Great Britain ..239/599  Filed! Dec- 2 1 7 Primary Examiner-Allen N. Knowles No: Assistant ExaminerEdwin D. Grant Attorney-Allan R. Redrow  US. CL... ..239/599 239/601  Int. Cl ..iiosb 1/00  ABSTRACT  Field of Search ..239/596, 599, 601 "A spray noule orifice member which produces a flat fan shaped spray making it ideally suited for the application of References Clted coatings. The orifice is formed by the intersection of a straight UNITED STATES PATENTS bottomed slot on one side and a curved bottom V-shaped groove on the opposite side of said member. The improvement 1,15 1 Fischer resides in the ease and economy of fabrication of such a pray nozzle member as a function of the groove-slot combination 3,437,274 4/1969 Apri ..239/601X concept.
4 Claims, 6 Drawing Figures PAIENIEDMAR 7 L972 3, 547, 147
ARNOLD W??? all 240W A'ITORNEY SPRAY NOZZLE ORIFICE MEMBER BACKGROUND OF THE INVENTION The invention relates to spray nozzles which emit a relatively flat fan-shaped spray, making them especially desirable for spraying paint or other types of coatings. More particularly the invention relates to the orifice member of such spray nozzles.
The orifice member of currently used spray nozzles fall into one of two general classes: (I the rather complexly shaped orifice membered typified by those described by Freeman in U.S. Pat. No. 1,813,733; 813,733; Wahlin in U.S. Pat. Nos.
2,62l,078, 2,722,458, 2,743,138, and 2,683,627; and Steinen in U.S. Pat. No. 3,045,932; and, (2 the more simple design such as that described by Carroll in U.S. Pat. No. 2,522,928; and Fischer in U.S. Pat. No. 1,151,258.
The geometry of the more complex class of orifice members is such that to insure the proper spray pattern and discharge volume, extremely close tolerance of several interrelated surfaces must be maintained. For example, orifice members such as those described by Wahlin utilize a relatively deep inner cavity of circular cross section, having an accurately defined spherical surface at its bottom. The outer cavity is also generally spherical and must be concentric with the inner spherical surface, and contain therein a V-groove which must intersect the inner and outer spherical surfaces on the centerline of the spherical radius. The depth of the V-groove penetrating the inner surface determines the angle of the spray pattern.
The other class of orifice members, though of less complex geometry still possesses the inherent requirement that the two grooves be located within extremely close tolerance relative to one another. In both the Carroll and Fischer orifice members the two grooves must be accurately machined, or otherwise formed, relative to each other with respect to (a) the angle the grooves make with each other in order to produce the proper orifice configuration, (b) the transverse location of one groove to the other as this effects the size of the orifice because of the concavity of the bottoms of said grooves, (c) the angles formed by the walls of the grooves as these effect size and shape of the orifice, and of course, (d) the relative depth of each groove. Only slight deviations in any one of these, results in a significant change in the orifice size or configuration.
Applicants invention is an orifice member, the novel design of which essentially eliminates the extremely close tolerance requirements of the prior art orifice members, thereby facilitating manufacture thereof.
SUMMARY OF THE INVENTION A simply manufactured spray nozzle orifice member, which emits a flat fan-shaped spray, results from the novel design of the orifice member of the invention. The outer face of the orifice member contains a V-shaped groove having oppositely curved walls and a concavely curved bottom or apex. This groove very much resembles the groove in the outer face of both the Carroll and Fischer nozzle orifice members. The inner face however, contains not a curved bottomed groove but rather a slot cut at approximately 90 to the groove in the outer face, which has essentially straight walls and a straight bottom. The straight bottom of said slot may form an angle with the straight walls, or there may be a radius of curvature where the walls and bottom meet such as would result if the slot was cut with a preformed cutting tool or end mill with a convex cutting surface. It is necessary however, that the longitudinal bottom surface of the slot be essentially straight.
While it is required that the V-shaped groove be so placed on the outer face and be of such a size that it is not overlapped by the cap or nut fastening it to the nozzle body, no such restriction is placed on the slot on the inner face. Said slot may originate and terminate well within the periphery of the orifice member or it may originate and terminate at the periphery i.e., traverse the complete diameter of the orifice member.
The combination of a V-shaped groove having oppositely curved walls and a concavely curved bottom on the outer face of a spray nozzle orifice member, intersecting with a slot having essentially straight walls and a straight bottom to form an elliptically shaped orifice, results in an orifice member that is simple and economic to manufacture. Because the slot on the inner face is comprised of straight walls and a straight bottom the orifice configuration is little affected if the angle of said slot and the V-shaped groove on the outer face is not exactly Furthermore the transverse location of slot to groove has no effect on the size or shape of the orifice because the bottom of the slot is straight, in the transverse direction, therefore the shape and size of the orifice remains the same regardless of where the groove intersects the slot. Furthermore still, only the angle of the V-shaped groove need be machined to close tolerances, the slot being a relatively open, straight walled (non V-shaped) depression. Thus the complexity of the manufacturing process of the invention orifice members is reduced to accurately machining the V-shaped groove on the outer face. Controlling the depth of the groove, which in the instant case affects only the size of the orifice and not the configuration thereof, is a simple matter once the requirement of extremely close tolerances between several interrelated surfaces inherent in the prior art orifice members, is eliminated.
BRIEF DESCRIPTION OF THE DRAWING FIG. I is a plan view showing the outer face of the orifice member.
FIG. 2 is a sectional view taken approximately on line 22 in FIG. 1.
FIG. 3 is a sectional view taken approximately on line 33 in FIG. 1.
FIG. 4 is a plan view of another embodiment of the invention showing the outer face of the orifice member.
FIG. 5 is a sectional view taken approximately on line 55 in FIG. 4.
FIG. 6 is a sectional view taken approximately on line 66 in FIG. 4.
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2 and 3 illustrate one-embodiment of the invention. The orifice member 10 containing the elliptical spray orifice I2, is essentially disc shaped. In the outer face 14 of the orifice member 10 there is a V-shaped groove 16 having oppositely curved walls 18, said groove terminating in a curved bottom or apex 20. The inner surface of the orifice member 10 contains therein a slot 22, having essentially straight sidewalls 24 and straight bottom 26. There is a radius of curvature 28 where the straight bottom 26 meets the walls 24 of the slot 22. This particular configuration of slot 22 will result if the slot is cut with an end mill having a convex cutting surface. Ifthe end mill has a flat cutting surface, the slot will not have the radius 28, but will have essentially a right angle meeting of bottom and walls. The slot 22, in this particular embodiment, is contained well within the periphery of the inner face of the orifice member 10.
FIGS. 4, 5, and 6 exemplify a second embodiment of the invention. Here the disc-shaped orifice member contains an elliptical spray orifice 32, located in the approximate center thereof. In the outer face 34 of the orifice member 30 there is a V-shaped groove 36 having oppositely curved walls 38, said groove terminating in a curved bottom 40. The inner surface of the orifice member 30 contains therein a slot 42, having essentially straight sidewalls 44 and straight bottom 46. Here the straight bottom 46 and straight walls 44 meet to form an approximate right angle 48. The configuration of the slot 42 in this embodiment results from cutting said slot with an end mill having a flat cutting surface. Alternatively, an end mill having a convex cutting surface may be used which would result in a straight bottomed, straight walled slot with a radius of curvature such as shown in FIG. 3. In the orifice member 30 of FIGS. 4-6, the slot 42 traverses the entire diameter of the discshaped orifice member 30. The .same angular straight bottomed, straight walled slot may be cut so as to be contained well in from the periphery of disc-shaped orifice member 30, in a similar placement as the slot 22 in FIGS, l-3.
Either the slot or the V-shaped groove may be cut into a blank disc initially, followed by cutting of the other depression. It is preferred however, to cut the more complexly shaped groove first, then to form the slot to the proper predetermined depth intersecting the groove to form the elliptically shaped orifice of the desired size. The techniques and tools used to form the orifice members of the present invention are well known to the skilled machinist. Furthermore, the invention orifice members could be molded into a finished product, although molding does not lend itself to extreme accuracy of orifice size, if this be critical to a given spraying application.
The present orifice members can be fabricated from any machineable or moldable material. The prime consideration in material selection is its wear resistance to the substance to be sprayed and the ease with which the material can beformed. Among those materials which may be used are tungsten carbide, boron carbide, aluminum oxide, bauxite, steel, iron, bronze, copper, zinc, thermoset polymers like phenolaldehydes, epoxies, unsaturated polyesters, and moldable thermoplastic polymers, like polytetrafiuorethylene, polyethylene and polypropylene. Materials like boron carbide and tungsten carbide are, for most spraying applications, the most wear resistant. On the other hand orifice members fabricated from plastics may be advantageous from a chemical resistance point of view.
The foregoing illustrations of the invention are not to be construed as limiting. The essence of the present invention is the combination, in a spray orifice member, of a V-shaped groove having a concavely curved bottom intersecting a straight walled, straight bottomed slot to form an elliptical spray orifice, said combination resulting in an easily manufactured orifice'member which emits a flat fan shaped spray. Additional embodiments of the present orifice member may be apparent to those skilled in the art; said possible additional embodiments are intended to be included within the scope of the appended claims.
What is claimed is:
l. A spray nozzle orifice member, adaptable to be joined with a nozzle body and which produces a flat fan-shaped spray, said nozzle orifice member having an inner and outer face, said outer face containing therein a V-shaped groove having oppositely curved walls and a concavely curved bottom, said inner face containing therein a slot having essentially straight walls and a straight bottom, said groove and said slot being oriented at approximately right angles to each other and intersecting so as to form an elliptical orifice.
2. The spray nozzle orifice member of claim I wherein said straight bottom of said slot has a radius of curvature which meets said essentially straight walls of said slot.
3. The spray nozzle orifice member of claim I wherein said straight bottom of said slot meets said essentially straight sidewalls at an angle of approximately 4. The spray nozzle orifice member of claim I wherein said orifice member is disc shaped and fabricated of a material selected from the group consisting of tungsten carbide, boron carbide, aluminum oxide, bauxite, steel, iron, bronze, copper, zinc, phenol-aldehyde polymer, epoxy resin, unsaturated polyester resin, polytetrafluoroethylene, polyethylene, and polypropylene.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1151258 *||Jan 12, 1911||Aug 24, 1915||Schutte & Koerting Co||Oil-burner.|
|US3437274 *||Jul 26, 1966||Apr 8, 1969||Edward W Apri||Liquid spray apparatus|
|CA514734A *||Jul 19, 1955||Arthur E Broughton||Spray nozzles|
|GB665016A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4097000 *||Nov 8, 1976||Jun 27, 1978||Derr Bernard A||Spray nozzle|
|US4346849 *||Jul 19, 1976||Aug 31, 1982||Nordson Corporation||Airless spray nozzle and method of making it|
|US4380319 *||Mar 12, 1982||Apr 19, 1983||Edward A. Sokolski||Liquid spray nozzle|
|US4401271 *||Jul 10, 1981||Aug 30, 1983||Minnesota Mining And Manufacturing Company||Aerosal fan spray head|
|US4882107 *||Nov 23, 1988||Nov 21, 1989||Union Carbide Chemicals And Plastics Company Inc.||Mold release coating process and apparatus using a supercritical fluid|
|US5171613 *||Sep 21, 1990||Dec 15, 1992||Union Carbide Chemicals & Plastics Technology Corporation||Apparatus and methods for application of coatings with supercritical fluids as diluents by spraying from an orifice|
|US5464154 *||Sep 29, 1993||Nov 7, 1995||Union Carbide Chemicals & Plastics Technology Corporation||Methods for spraying polymeric compositions with compressed fluids and enhanced atomization|
|US5492277 *||Feb 16, 1994||Feb 20, 1996||Nippondenso Co., Ltd.||Fluid injection nozzle|
|US5514399 *||Jun 27, 1994||May 7, 1996||Nabisco, Inc.||Method of applying particulates to baked goods and snacks|
|US5520942 *||Feb 15, 1994||May 28, 1996||Nabisco, Inc.||Snack food coating using supercritical fluid spray|
|US5639025 *||Jul 7, 1995||Jun 17, 1997||The Procter & Gamble Company||High Viscosity pump sprayer utilizing fan spray nozzle|
|US5642860 *||Apr 1, 1996||Jul 1, 1997||The Procter & Gamble Company||Pump sprayer for viscous or solids laden liquids|
|US5655255 *||Jul 6, 1995||Aug 12, 1997||Bissell Inc.||Water extractor and nozzle therefor|
|US5698252 *||May 31, 1995||Dec 16, 1997||Nabisco Technology Company||Topical application of particulates for production of reduced fat, low fat, and no-fat baked goods and snacks|
|US5707448 *||Apr 30, 1996||Jan 13, 1998||Nabisco Technology Company||Apparatus for the application of particulates to baked goods and snacks|
|US5711695 *||May 1, 1995||Jan 27, 1998||Pitsco, Inc.||Gas-propelled toy with exhaust nozzle for gas cartridge|
|US5823447 *||Aug 27, 1996||Oct 20, 1998||Meritech, Inc.||Angled fan nozzle and unibody cylinder|
|US5846587 *||Nov 21, 1997||Dec 8, 1998||Nabisco Technology Company||Topical application of particulates for production of reduced fat, low fat, and no-fat baked goods and snacks|
|US5881958 *||Aug 16, 1996||Mar 16, 1999||Kyoritsu Gokin Mfg. Co., Ltd.||Fluid discharge nozzle|
|US5890655 *||Jan 6, 1997||Apr 6, 1999||The Procter & Gamble Company||Fan spray nozzles having elastomeric dome-shaped tips|
|US5964146 *||Oct 21, 1998||Oct 12, 1999||Nabisco Technology Company||Topical application of particulates for production of reduced fat, low fat and no-fat baked goods and snacks|
|US6234406 *||Nov 8, 1999||May 22, 2001||Jacques J. A. Thomas||Blasting nozzle with welded lance head for the agitation of baths|
|US7131598 *||Oct 4, 2004||Nov 7, 2006||Ratnik Industries, Inc.||Snow-gun|
|US7607442||Jul 27, 2007||Oct 27, 2009||Resurgent Health & Medical, Llc||Wash chamber for automated appendage-washing apparatus|
|US7607443||Jul 27, 2007||Oct 27, 2009||Resurgent Health & Medical, Llc||Wash chamber for automated appendage-washing apparatus|
|US7617830||Jul 27, 2007||Nov 17, 2009||Resurgent Health & Medical, Llc||Wash chamber for automated appendage-washing apparatus|
|US7641740||Jul 27, 2007||Jan 5, 2010||Resurgent Health & Medical, Llc||Wash chamber for automated appendage-washing apparatus|
|US7648087 *||Aug 1, 2007||Jan 19, 2010||Aerosol Inventions And Development S.A.||Spray nozzle assembly|
|US7659824||Dec 28, 2006||Feb 9, 2010||Resurgent Health & Medical, Llc||Sanitizer dispensers with compliance verification|
|US7682464||Dec 28, 2006||Mar 23, 2010||Resurgent Health & Medical, Llc||Automated washing system with compliance verification|
|US7698770||Mar 22, 2007||Apr 20, 2010||Resurgent Health & Medical, Llc||Automated appendage cleaning apparatus with brush|
|US7754021||Dec 30, 2008||Jul 13, 2010||Resurgent Health & Medical, Llc||Wash chamber for appendage-washing apparatus|
|US7754022||Dec 8, 2008||Jul 13, 2010||Resurgent Health & Medical, Llc||Wash chamber for appendage-washing method|
|US7757700||Jul 27, 2007||Jul 20, 2010||Resurgent Health & Medical, Llc||Wash chamber for automated appendage-washing apparatus|
|US7758701||Dec 9, 2008||Jul 20, 2010||Resurgent Health & Medical, Llc||Wash chamber for automated appendage-washing apparatus|
|US7789095||Dec 9, 2008||Sep 7, 2010||Resurgent Health & Medical, Llc||Wash chamber for automated appendage-washing apparatus|
|US7818083||Sep 7, 2007||Oct 19, 2010||Resurgent Health & Medical, Llc||Automated washing system with compliance verification and automated compliance monitoring reporting|
|US7883585||Dec 8, 2008||Feb 8, 2011||Resurgent Health & Medical, Llc||Wash chamber for appendage-washing method|
|US7901513||Dec 9, 2008||Mar 8, 2011||Resurgent Health & Medical, LLC.||Wash chamber for appendage-washing method|
|US7993471||Dec 8, 2008||Aug 9, 2011||Barnhill Paul R||Wash chamber for automated appendage-washing apparatus|
|US8066201 *||Jan 24, 2007||Nov 29, 2011||Kim Lui So||Method and apparatus for supplying a fluid|
|US8079534||May 14, 2008||Dec 20, 2011||Lechler Gmbh||Spray nozzle|
|US8085155||Dec 18, 2009||Dec 27, 2011||Resurgent Health & Medical, Llc||Sanitizer dispensers with compliance verification|
|US8110047||Dec 4, 2008||Feb 7, 2012||Resurgent Health & Medical, Llc||Automated washing system with compliance verification|
|US8146613||Apr 29, 2009||Apr 3, 2012||Resurgent Health & Medical, Llc||Wash chamber for surgical environment|
|US8294585||Apr 29, 2009||Oct 23, 2012||Resurgent Health & Medical, Llc||Complete hand care|
|US8377229||Apr 29, 2009||Feb 19, 2013||Resurgent Health & Medical, Llc||Ingress/egress system for hygiene compliance|
|US8400309||Apr 29, 2009||Mar 19, 2013||Resurgent Health & Medical, Llc||Hygiene compliance|
|US9057560||Oct 19, 2012||Jun 16, 2015||Dyson Technology Limited||Developments in or relating to a hand dryer|
|US20040195402 *||Feb 25, 2004||Oct 7, 2004||Mahendra Ladharam Joshi||Slotted injection nozzle and low NOx burner assembly|
|US20060071091 *||Oct 4, 2004||Apr 6, 2006||Ratnik H R||Snow-gun|
|US20060196970 *||Mar 7, 2005||Sep 7, 2006||Lear Corporation||Spray nozzle for spray forming a reactant mixture applied with a flat fan spray|
|US20070125879 *||Nov 21, 2005||Jun 7, 2007||Babek Khamenian||Adjustable spray nozzle|
|US20080029621 *||Aug 1, 2007||Feb 7, 2008||Lindal Ventil Gmbh||Spray nozzle assembly|
|US20080099043 *||Mar 22, 2007||May 1, 2008||Icon Systems, Llc||Automated appendage cleaning apparatus with brush|
|US20080099045 *||Dec 28, 2006||May 1, 2008||Icon Systems, Llc||Automated washing system with compliance verification|
|US20080099047 *||Jul 27, 2007||May 1, 2008||Icon Systems, Llc||Wash chamber for automated appendage-washing apparatus|
|US20080099048 *||Jul 27, 2007||May 1, 2008||Icon Systems, Llc||Wash chamber for automated appendage-washing apparatus|
|US20080099049 *||Jul 27, 2007||May 1, 2008||Icon Systems, Llc||Wash chamber for automated appendage-washing apparatus|
|US20080100441 *||Dec 28, 2006||May 1, 2008||Timothy Prodanovich||Sanitizer dispensers with compliance verification|
|US20080103636 *||Sep 7, 2007||May 1, 2008||James Glenn||Automated Washing System With Compliance Verification And Automated Compliance Monitoring Reporting|
|US20080290197 *||May 14, 2008||Nov 27, 2008||Albert Fecht||Spray nozzle|
|US20090083970 *||Dec 8, 2008||Apr 2, 2009||Barnhill Paul R||Wash chamber for automated appendage washing apparatus|
|US20090084407 *||Dec 4, 2008||Apr 2, 2009||James Glenn||Automated washing system with compliance verification|
|US20090084414 *||Dec 9, 2008||Apr 2, 2009||Barnhill Paul R||Wash chamber for automated appendage-washing apparatus|
|US20090084417 *||Dec 9, 2008||Apr 2, 2009||Barnhill Paul R||Wash chamber for automated appendage-washing apparatus|
|US20090090389 *||Dec 8, 2008||Apr 9, 2009||Barnhill Paul R||Wash chamber for automated appendage-washing apparatus|
|US20090267776 *||Apr 29, 2009||Oct 29, 2009||Meritech, Inc.||Hygiene compliance|
|US20090272405 *||Apr 29, 2009||Nov 5, 2009||Meritech, Inc.||Ingress/egress system for hygiene compliance|
|US20090273477 *||Apr 29, 2009||Nov 5, 2009||Meritech, Inc.||Hygiene compliance monitoring|
|US20090299787 *||Apr 29, 2009||Dec 3, 2009||Meritech, Inc.||Complete hand care|
|US20090301523 *||Apr 29, 2009||Dec 10, 2009||Meritech, Inc.||Wash Chamber for Surgical Environment|
|US20100001098 *||Jan 24, 2007||Jan 7, 2010||Kim Lui So||Method and apparatus for supplying a fluid|
|US20100097224 *||Dec 18, 2009||Apr 22, 2010||Resurgent Health & Medical, Llc||Sanitizer dispensers with compliance verification|
|US20100288270 *||Dec 5, 2008||Nov 18, 2010||Canon Kabushiki Kaisha||Liquid ejecting head|
|US20100313916 *||Aug 24, 2010||Dec 16, 2010||Resurgent Health & Medical, Llc||Wash chamber for appendage-washing apparatus|
|US20130319301 *||Jan 12, 2012||Dec 5, 2013||Babcock-Hitachi K.K.||Spray Nozzle, and Combustion Device Having Spray Nozzle|
|CN101306410B||May 15, 2008||Oct 10, 2012||莱希勒有限公司||Spray nozzle|
|CN103054502A *||Oct 22, 2012||Apr 24, 2013||戴森技术有限公司||Developments in or relating to a hand dryer|
|CN103054502B *||Oct 22, 2012||Jun 3, 2015||戴森技术有限公司||Hand dryer and method for manufacturing nozzle part of the hand dryer|
|DE2732314A1 *||Jul 16, 1977||Jan 26, 1978||Nordson Corp||Luftlose spruehduese und verfahren zu deren herstellung|
|DE102006036762A1 *||Aug 5, 2006||Feb 14, 2008||Lindal Ventil Gmbh||Sprühdüsenanordnung|
|EP1992414A3 *||Apr 23, 2008||Dec 16, 2009||Lechler GmbH||Spray nozzle|
|WO1997002896A1 *||May 3, 1996||Jan 30, 1997||The Procter & Gamble Company||Pump sprayer for viscous or solids laden liquids|
|WO1998030334A1 *||Dec 23, 1997||Jul 16, 1998||The Procter & Gamble Company||Fan spray nozzles having elastomeric dome-shaped tips|
|WO2013057476A1 *||Oct 5, 2012||Apr 25, 2013||Dyson Technology Limited||Method of manufacturing a nozzle part for a hand dryer|
|U.S. Classification||239/599, 239/601|
|Cooperative Classification||B05B1/042, B05B1/048|
|European Classification||B05B1/04J, B05B1/04D|