US2563231A - Perfume atomizer nozzle - Google Patents

Description

iPatented ug. 7, i

'e assazsr .Charles A. Fortin, Montreal, Quebec, Canada, as'`Y Y signor toV Institution Catholique des: Soumise.,

Muetspour la 4Province de Quebec, Montreal;

Quebewanma Application December I7?, 1947,s'eria1No. 792,228

I Canada December 2, 1947 IntOzdlLCion Y This inventionf relates atomizers and' nore particularly to improvements in thenozzle struc'- ture;

The atomizer nozzle structures V` customarily w used vin small portable 'atomizersff forlgdispensing perfume or toilet'water. such as that'fdisclosed in United States Patent' Application, vSerial No. 684,426, filed July'j'181946, by AlbertJ. Bruneau, are prone to leakage, when carried in a pocket or purse,` this leakage 'sometimes loein'g caused by rapid changes of temperature or agitation caused by the normal movements of the person carrying the atomizer. Further. it has been found that in the above-noted structure the supply Qf liquid to the nozzle is at times restricted or stopped, due to the lack of suflicient return of air passing into the fluid reservoir to compensate for the liquid dispersed.

Objects i The present invention deals' fundamentally with'thes'e conditions, and its aim is to devise a thoroughly practical'solution for them, as well as to provide a superior atomizationof the fluid, at the Sametime preventing evaporizationfof the fluid when the atomizer is not use.

' The invention The invention, in its preferred form, consists of va new valve structure vembodied in the type of atomizer set forth in United States Patent Application, Serial No. 634,426, AlbertnJLBruneau, consisting of a thin substantially rectangular body having a pump chamber and a f'luidreservoir. A transversepassage, having connecting passages with both the pump chamber and the fluid reservoir, is adapted to house the atomizing valve structure. o The atomizingvalve, Which will be more fully explained later, comprises two parts, namely a primary body member and agsecondary insert. Borings and clearances within and between the primary and secondary'members:.provide an air passage anda fluid passage. which, in conjunctionwith a" piston workable inthe pump cylinder, dispenses perfume in atomized or spray form. I vA cap threadablyattached to the primary body. is adapted'to housea Lwasher, both washer and cap being bored'tov supply an air passage o o-axial with the air nozzle, saidnozzle being an Velongated tubehaving a reduced diameterwv projecting f1' 0mthe air.. DaSSagQfazThe .insideA Cil'cllmflence f .the can is of `s111330.ont :diameter to .encompass pianse (c1. 29o-fes) the clearance around the second body which con-A open position. .Y j

stitutes the-fluidrpassage, forms a chamber surroundingthe airnozzle, into which the fluid has free passage. iIn its closed position the Washer is forced againstthe opening of the fluid passage blocking it, thus preventing leakage and evap.- eration of the fluid. In its openLposition, the chamber formed by the withdrawal of the washer from the uid passage forms a turbulizing or mixing chamber.Y j; A, t On the intake or aspiration stroke .of the piston, air is drawnintothe pump cylinderand the mixingchamber,;the sharp intake ofV aircaus. ing a turbulizingeffecton the air and fluid in the chamber, thus breaking up the uid into airborne particles. v

On the exhaust orrexpirationstroke.of the pis,- ton thestream of airgforced outofthe air nozzle syphons ar portion of ',therair and iluidzmixture out of the chamberfand ejects it in .the form of a finely brokenupatomized spray. The drawing outof the mixture from the chamber allows fur,- ther fluid to flowinto the chamber from the resfervoir, and the airentering thechamber, on the intake stroke ofthe piston, replenishes the displaced volume of' fluid in the reservoir, by filtration.v r

The latter causes a free flow of fluid from the reservoir and the. former causes finer atomizael tion and more even mixture. L

Detailed' description Stil1 other features will be( apparent in the course uof the following detailedv description in which reference is made tothe accompanying drawing, wherein: 4 Y

Figure l is a sidesectional elevation taken substantially 'onu the center-line of the perfume, atomizennembodying the invention.i Y

Figure 2 is a cross section taken on the line 2-2, Figure 1. Y

Figure 3 is a front end elevation of the preferred structure. i i

Figure 4 is an exploded part sectional View of the air pump piston assembly. 1

VFigure 5 isan enlarged side section of the primary member of the atomizing nozzle, embodying the invention. Y

Figure 6 is an enlargedside section of the secondary member of the atomizing nozzle. Y.

Figure 7 is an enlarged side'section of the assembled atomizing nozzle embodying the invention in closed position.

Figure 8 is an enlarged part side section of the assembled nozzleas shown inFigure 7, b ut in the ing I2 constitutes'a fluid-chamber and the boring I4 a pump cylinder. These borings I2 and I4 are connected to a lateral boring I6 by means oi paseg--z sages I8 and 20. Forced into the opening of the,

chamber I2 and retained there bya dry fit, isa collar 22, this collar being threaded to receive a closure 24 which has a ilanged head 25. A washer 26 is adapted to providean air-tight seal to the chamber I2 by being compressed between the flanged head 25 and the collar A22 as the closure 24 is screwed home.

4 the passage |8 leading to the uid reservoir. The countersunk portion I of the hole |08, is adapted to provide a globular formation to the iluid as it clings to the opening |08 before passing through into the passage yI 04. f

The secondary insertconsIsts of the 1cylindrical member |02 having a stepped down outside diameter, that is, the portion I |2 is of a circumferenceadaptedto t into the circumference of the boring "|04 in a dry iit, thus sealing the boring.

. The diameter. of theportion I I4 is slightly smaller collar 22 provides for the egress of air from the Y uid chamber I2, which is displaced as the closure 24 is being screwed Ahome to a point of ultimately sealing the chamber. A ir may escape through the boring 28, up tothe time ofbeing 'sealed' by the Washer 26. `A groove 30, out transversely in the outside'face of the flanged head portion 26 of the closure-24, is provided to adapt the closure 24 to be screwed home or loosened-by the use of an ordinary-coin which is inserted in the transverse slot 30. Y

The piston which forms a movable part of the pumping mechanism comprises a solid stem 32 which is threaded at one end to receive a washer 34. This washer 34 forms a base for a sealing ring 36 of leather or other like material which has an upwardlyextendinglcollar, which is forced outwardly by a metal crown-like washer 38 having upwardly and outwardly extending spurs. A washer 40 and a nut 42 compl'etethe upper structure of thepiston. Aspiral spring 44 which is seated on the washer 40l-andv against the main body A`|0 provides resilient -outward action to the piston. A'collar member 46 provides a bushing for the motion of the stem 32. A rotatably mounted, thumb-engaging head consisting of a fluted Wheel member 48 is retained on the lower end of the stem 32 by a snapr ring 50 which is engaged in the detents 52 on the wheel and 54 on the stem 32. Protruding wing members 56 which are formed on alternative quarters of the circumference of the wheel member 48 are caught under the flanged head of aretaining screw 58 which is screwed into the, body I0. As will be understood, a quarter turn of the head 38 will release the wings 5,6 from contact with the retainer screw 58, thereby allowing the plunger to extend to an open position by force of-'the spring 44.

The apparatus described thus far in the detailed description is essentially that disclosed in United States Patent 2,543,829, granted on March 6, 1951, to Albert J Bruneau.

Atomizer valve assembly The atomizer valve assembly as illustrated consists of the primary body member |00 (Figure 5) and a secondary body member |02 (Figure 6). The primary body member |00 consists of a cylindrical body having a, central passage I 04 throughout the entire length of the member. One end of the outside periphery of this member |00 is threaded at |06, the balance of the periphery being of a size to t snugly within the larger portion of the transverse boring I6 in the body member |0. The threaded portion |06 extends outwardly free of the body |0. A countersunk hole |08 bored through the `body of this member |00, and is adapted to connect the passage |04 with than the diameterV of |04 or I I2 so that when the insert. |02-ls inserted into the boring. |04, the dif- A minute boring 28 in the |"2 by'fA the boring |8"and the hole |08 which are adapted to coincide. The nose or end portion of the'small diameter is ilat at |20. A central passage |22 in the secondary member |02 is decreased in diameter-at |24 `to form a nozzle for the passageIZZ. A, cylindrical s leeve |26 is xed in' thepassja'g'e |22at" |24 lt'oforln an'air nozzle extending beyond the flat face |20 of the secondary piece |02.

'A cap` member |30 is adapted to lengage the cyundricai jpnlnary member lnay'rhe preferred method consists of a threaded engagement 4as illustrated, but a snug slidiri'gf'fltf'is also adaptable, andthe sliding action of 'th'pap'ISU' on theV primary'member |00'could`be'controlled by a springurged ball catch. In the preferred 'embodiment'a cap member |30 is adapted to threadably engage the 'cylindrical primary member |00 by the threaded portion |06. Aicentral'boring |32 in the iaceportion of the cap |30 is adapted to 'coincide with the "sleeve member' |26 vleaving an annular clearance |34 between'the outside periphery of tlie'member |26 and the inside periphery of the boring |32. The length of the sleeve member |26 is such that it will atleast; enter the boring |32 but shall not extend beyond the limits of the borlng. A resilient washer |36"held into the cavity portion ofthe Acap by aclose'fitis provided with a central openingl |38 Vof sulcient diameter to clear the outside vperiphery of the nozzle or sleeve member"|26. 4The clearance between the sleeve member |26 and the washerfwhichls governed by the size of the openi ng 4 |38, is preferably larger than the clearance |34 between the cap and the sleeve. The screwed connection between the cap |30'and the primary member |00 is of-suflicient length to draw the washer |36 into sealing contact with the flat-face |20-, thus sealing or blocking-of the fluidchamber II6 is achieved clearance between thelwasher |36 and the sleeve member |26.

Operation; and advantagesl The atomizing action of the atomizer detailed, beingv universally understood, willnot be dealt with in any great length.uwith,the exception that the majority of atomizers utilizea separate air inlet yin order to replenish the air supply to theV pump on theintakev stroke. In the' applicants structure, the intake stroke o1' the pump piston draws air through the same opening |32 as it is forced out of in: the exhaust stroke. This has one feature of 'eliminating extra'structuref necessary to provide for the second air inlet to the pump piston. A further advantage is that the air being drawn back by the intake stroke of the pump piston causes a turbulent motion of the air within the chamber formed by the cap |36. This turbulence is instrumental in stirring up' and mixing air with the fluid which is in the chamber, thus providing better atomization as the current or" air is reversed by the exhaust stroke of the piston.

As the washer 136 is instrumental in blocking off the fluid passage to the orifice |32, it is also instrumental in governing' the amount of fluid, which is drawn by the air stream from the uid passage |94, by the degree of clearance between the washer 136 and the face |20. This clearance between the washer |36 and the face IZB is adjusted, by the user, by unscrewing the cap |36 to any degree desired.

The sub-titles used throughout the specification are merely to simplify reference thereto and should otherwise be disregarded.

I claim:

1. An atomizer nozzle, comprising, a tubular insert-piece adapted for insertion into an atomizer body, a tube within said insert-piece, said tube having a minor portion at its rear end of a size to iit snugly within said insert-piece and a major portion of a size to leave a clearance space constituting a perfume passage between its outside wall and the inside wall of the insertpiece, an opening of reduced size in the forward end' of the tube and a tubular tip inserted in said opening of reduced size, the insert-piece and the tube having forward ends extending to the same point, the internal bore of the tube extending from the rear thereof to the tip and adapted to constitute an air passage, the insertpiece having an opening in the side thereof leading to said perfume passage, a cap mounted on the insert-piece and having a cover portion and side liange portions overlapping the insert-piece, said cap being adapted for limited movement towards and from the insert-piece, a resilient washer in said cap and adapted to bear against the ends of said insert-piece and tube thereby to seal olf the end of said perfume passage, said cap and washer including a centrally disposed opening in register with said tube tip, whereby movement of the cap away from the ends of the insert-piece and tube is adapted to form a transverse passage leading from the perfume passage towards the opening in the cap so as to allow aspiration of the perfume from the perfume passage by the action of the air passing through said tip.

2. An atomizer for dispensing atomized liquid, comprising in combination, an external tube and an internal tube forming separate concentric passageways, the members terminating in coextensive ends, a cap mounted on the external tube for limited movement to and from said ends, a hole in said cap forming a dispensing opening registering with the end of the internal passageway, a resilient washer in said cap adapted to engage the ends of said tubes thereby to close the end of said external passageway completely,

the washer including an opening registering with the opening in the cap, the external tube being provided with an opening constituting a liquid inlet to said external passageway, the internal tube having an opening constituting an air inlet, and means between said inlets separating the said passageways.

3. An atomizer structure comprising a tubular passage forming member having a dispensing opening at one end; a tube mounted within said member with one end disposed in said opening and having a major portion of its length spaced from the interior of the member, to form a liquid passage leading into said opening, said tube having at its opposite end an enlarged portion fitting the interior of said member in sealing contact; a tip projecting beyond the rst mentioned end of said tube and having a restricted passage leading from the interior thereof; a centrally apertured cap mounted for axial movement on the first mentioned end of the passage forming meinber; a washer in said cap in axial alignment with the open end of said liquid passage and having a central opening registering with said tip and disposed in axial alignment with the aperture in said cap, whereby axial adjustment of the cap and washer Varies the clearance between the dispensing opening and the opening in the washer, to regulate the flow of liquid from said liquid passage; an inlet to the liquid passage; and an air inlet to the end of said tube remote from the dispensing opening.

C. A. FORTIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,219,309 Holland Mar. 13, 1917 1,493,150 Deming May 6, 1924 1,849,661 Custer Mar. 15, 1932 1,887,383 Vuillemenot Nov. 8, 1932 1,899,698 Klein Feb. 28, 1933 2,086,626 Lohse July 13, 1937 2,275,666 Wilson Mar. 10, 1942 FOREIGN PATENTS Number Country Date 820,280 France July 26, 1937 836,431 France Jan. 18, 1939 849,884 France Dec. 4, 1939

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