CA2149153A1 - An atomiser - Google Patents

An atomiser

Info

Publication number
CA2149153A1
CA2149153A1 CA002149153A CA2149153A CA2149153A1 CA 2149153 A1 CA2149153 A1 CA 2149153A1 CA 002149153 A CA002149153 A CA 002149153A CA 2149153 A CA2149153 A CA 2149153A CA 2149153 A1 CA2149153 A1 CA 2149153A1
Authority
CA
Canada
Prior art keywords
atomiser
filter
housing
pump
holder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002149153A
Other languages
French (fr)
Inventor
Maurice Mckenna
Aidan Clear
Angus Mcglynn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TEE Enterprises Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2149153A1 publication Critical patent/CA2149153A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0037Containers
    • B05B11/0039Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0037Containers
    • B05B11/0039Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00444Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means with provision for filtering or cleaning the air flow drawn into the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042Components or details
    • B05B11/1052Actuation means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042Components or details
    • B05B11/1052Actuation means
    • B05B11/1056Actuation means comprising rotatable or articulated levers

Abstract

An atomiser has a container for pure water. A pump is mounted on the container for dispensing water from the container as an atomised spray. The pump has an air vent passage to allow air into the container as water is discharged. A filter is mounted across the vent passage to purify air drawn into the container when water is discharged.

Description

wo 9~ 1S 214 ~ 1 ~ 3 PCT/IE93~000~4 ~An A~omiser~

This invent~ on relales to an atom-ser and in partic~lar an a~o~iser ~or pr~d~lcing a fine spray mis~ of water.
It is known ta pro~tide a spring water a~amise~ comprising a pressurised conr~ i ner of ~a~er which ~an be discharged S in a fine spray via gas dri~ren aerosol . Unt~ 1 recenlly a C~C gas was used for proFu~ sion ~ut now more en~ironmentall~ accepla~le gases are used in the aerosoL
A pressurised aerosol i5 not, ho~ever, suitable for all ages and ~or all environmenrs.

The presenl in~ention is direc~ed ~owards the ~ro~ision of a li~uid spray device ~hich o~ercomes this pro~lem.

A~cordlng ~o the invention there is proYided an atomiser com~rising a container for licuid, means ~ar dispensin~
liquid from ~he con~ainer as an atamised spray, a ~en~
pas~aae co~uni caling ~e~ween an in~erior and exlerior ol ~he container, and ~eans _o ouriry air drawn inlo .he con~ainer ~hrou~h the vent passage when li~ui~ is discharged ~r~m ~he con~ainer.

In a particularly pre~erred embodiment of the in~enlion the means to ourify air is ~ filter maun~ed across the ~ent passage ~hus, adYan~aoeously as ~ent air is drawn into the conr~in~r, it is purified to preven~
cont~ tion of the liquid wi~hin the cont~ i ~er .

In another em~odLmen~ the filter has openings for throuah passage o~ air, said op~nings being sized ~o blocX harmlul bac~e~La. Typically the ar~nings are of a size no grea~er than 0.~ microns. Thus, ad~anlageou~ly the filter ~ill trap any har~Iul bacteria ~ n the ~enl air drawn into the con~ainer. A~ the same time there is ~uf~ic~ent air WO 9~/1111~ 2 1 4 9 1 ~ 3 PCT~1~93J0~054 moYement ~hrough Ihe filter so tha~ the ~oray remains effec~ive and fine. ~he fllter should preferably ~e of a material ~hich is resistant _~ ~he liquid in Ihe con~ainer so i~ will nc~ disintegra~e or lose its effecti~eness a~er contact with ~he liquld in the canta~ner.

~n one mhodlment the f1}ter is mounted ~t an.in~er end of the ~en~ passage ~ilhin the container. Alte~nali~ely, t~e filter may be mounte~ at an ~uter end o~ Ihe ven~ passage.

In a particularly Dreferred em~odlmen~ the ~ilter is supported on a holder moun~ed across the vent passage.
Pre~era~ly ~he holder has a number of throuah holes across which ~he ~ilter is suppor~ed In a further embodiment the dispens ing mean5 is a pump .
Ideally the pump has a ~ouslng through w~ich t~e Yen~
1~ p~ssage passes, the ~older belng mounted on the pump housing across Ihe ~rent Dassage In a par~icu~arly D-elerrea ~mDodimen~ ~he OUmD has an inlet for c~mml-nica~on with a~ ~n~erlor of _he con~a~ner and an outlet with a spray nozzle for disch~ging liouid ~rom the conr~inP~ n a~omised spray, a sprln~-loaded plun~er slidably mounted within ~he housing a~d projectinq outwardly there~rom, operabie ~o deli~er liquid between the ~nlet and the ou~le~, a mounting flange projec~lng ou~wardly of ~he housing for engagemen~ ~ith a periphery 25 o~ an opening in the cont~in~ to mount the pump on the cont~iner, the filter ~older belng mounted be~ween the housing and the flange across ~he ven~ passage.

In another e~od~menl .he f il ter holder has a ~ubular bo~y which is a sleeved ~il on an ex~e~ior or Ihe houslng O ~enea~h the rlange, the boav havlng a flanged upper end wlth a number of ~paced-apar~ Yen~ holes acr~ss wAich the ~094/1~ 2 1 i 9 1 ~ 3 PCT~1~93/OOQ~4 -~ilter i5 mounted, an upslan~lng perlpheral rim on ~he ~langed end engagi~g ~he pulmp mountlng flange.

In a further em~odLmen~- the filter nolder has a ring-shaped body with a cen~ral thraugn hole for engagement around the pump housing, an air-tighl se~l ~eing pro~ided ~e~ween ~he ~ump housing and the ~ody, the ~ilter ~eing moun~ed on the body across a number or vent holes passlnc through t~e body, an upper face of ~he body engaging an underside of the pump ~oun~in~ flange-In another emDodiment the housing and the rlange are o~plaslics malerlal., the holde~ being ul~rasonically welded to the housing and the flange This grea~ly facilitales manufacture ena~ling the holder ~o be qulckly mounted on the housi~g ln an efficienl and econo~ic ~ r.

1~ In a fur~he~ ~m~odimen~ the filte- holder has a tubular body engaoa~le with an upper end of the pump housing, an UDper end wa~l o r the Dody ha~ng a cen~-al t~.-ough hoie ~or ~hroug~ ~assage ol the ~umD Dlunger, an air-~ight seal ~eing pro~iaed between t~e end wall and the plunger, .he ~O end wall haYi nq a num~er of ven~ holes across wh1ch ~he ~ilter is supoorted.

In ano~her em~od~en~ the filter halder has a tubular body which loa~ely engages arol~nd an ~oper end ~ the pump housing, an upper end wall or rhe body havlng a cen~ral Z5 through hole for ~hrough passage o~ ~he pum~ plunger, an a~r-tlght seal being pro~ided be~ween t~e end wall and the plunger, a flange ex~en~ i ng outwardly of the body tO
engage the pUmD mo~nt~ng flange, the ~ilter mounted on sald ~lan~e across ven~ holes ~n t~e flange.

WO 94/1111~ 214 915 3 PCT~IE93/0~

In another emDodiment the venl passage ls formed ~y a ~en~
plpe passina through the pump housing, the filter being mounted at an outer end of the vent pipe.

In another aspec~ the inven~ion pro~ides an atomiser as pre~iously described, said atomiser cont~i n i ng pure wa~er for discharge as an alamised spray In a further aspect of the ln~ention ~here i5 pro~ided a filler assemDly for an atomiser of thP type pre~iously descr~ed, the filter assembly c~mprislng a filter 10 supported on a holder hA~ing me~ns far mounting ~he holder on the atomiser across the air vent passage.

In a still further aspect of the in~ention there i~
prQ~lded an atomiser sys~em comprising an a~omiser of the type previously descri~ed in Com~inaliOn with an lS associated cerrier; the carrier comprising mean~ for receplion of the a~omiser and means for moun~n~ the 5UD~Cr~ on a suDpor- surlace.

In ano~her em~cdimen~ .he car--~ er has means _o demoun~ably secure the atomiser thereon.

20 In anather em~odiment the -arrier has a housing far recePtiOn o~ the atc~ i se~ w~ th a discharge opening throngh which the a~om sed spray is d~rected, and actuating means ~or operat~ ng the atomlser when it is moun~ed an the carrier.

In a p~rticularly prelerred embodL~ent slots are pro~ided in a rear wall of the hous-nc for recep~ion of moun~ing s~re~s t~ demounta~ly sec-~ e the carrier ~n an upright su~port surrace. Typ~cally ~he slots have an in~er~ed keyhole shape.

WO94/11115 214 915 3 PCT/IE93/~0054 The inven~ion will be more clearly unders~ood ~y the following ~escript~on of so~e em~odimen~s .~erec~, given ~y w~y of ex~mole oni~, ~wi~h referen~e to ~he accomDanying drawings, in which:-~ig. l 15 a persDec~ive view of an atomlser according to the in~ention;

Eig 2 is an elevalional, partially sectioned ~iew of a puwP por~ion of ohe atomiser;

Fig. 3 is a plan view of a fil~er portion of the atamiser;

Fig. 4 is a sec~ional elevational vie~ taken along theline I~-IV of Fig. 3;

Fig 5 is a de~a~l seco~.onal ~iew c~ por~ion of the ~ilter shown in ~g. 4;

- Fig. 6 is a Derspec-~ve ~iew o~ an alterna~ive .ype o ~ilter ,o_ use wl~:~ the a~omiser:

Fig. 7 i5 an ex~Loded ele~ational view of another filter assem~ly for the a~omiser;

Fig. 8 is a plan ~iew of portlon ~f the filter of Fig.
2~ 7;

Fig. 9 ~s a plan ~-iew of ano~her portion of the filte~
of Fig. 7i Fig. 10 is a seclional elevational view of the filter af Fi~. ~ shown mou~l~d on an atomis~r ~o~tle;

21~91~3 "'094~11115 pcrlIEs3/o~ns4 Fig. 11 is an exploaed, par-~lally sectional ~levational view of ano~her fil~er;

Fig. 12a is an e~e~a~ional ~iew por~ion of ~he fil~er of Fig. 11;

~ig. 12b is an uncernealh plan ~iew of ~he filter por~ion of ~ig. 12a;

~ig. 12c is a cop Dlan view of Ihe filter por~ion o~
~ig. 12a;

Fig. 13 is a plan view af portion of the fil~er of Fig;
11;

Fig. 14 is cn ele~a~onal view of the fil~er oorti~n o~
Fig. 13;

Fig. 15 is a de~ail ciagramma~ic sec~ional ~levational ~iew of anolner ar~~iser;

_S Fig. 16 is a seclional eleva~ional ~iew o~ ~ filter and fllter holder ~nrm;~ por~ian af the ato~iser of Fig.
15;

Fig 17 ls a detail secti nn~ I elev~tional ~iew showing ~ pump porlion of another atomiser;

2Q Fig. 18 iS an exoloded ~iew o~ a filter a~semhly ineorporated in t~e ~ump of Flg. 17;

Fig. 1~ ;s a delail sectional view si~ilar ~o Fig 17 of a pump Do_~ion or a~o~her atomiser incaroorating a dif~eren~ ~llter aSS~mhly;

~1~9153 ~94/lllI~ PCTJIEg3~000~S

Fig 20 ls a persDec~ive ~iew o~ Lhe pump ~or~ion shown in Fig. 1~;

~ig. 21 is a pe-cpecti~e ~iew of a ~ er ascembly incorporated in the atomiser of Fig. 19;

Fig 22 is a perspec~ive ~iew or port~on of ano~her atomiser;

~ig. 13 is a dela~ 1 sectional eleva~ianal view of ~he atomiser portion shown ln F~. 22;

~ig. 24 is a perspec~i~e view of a carrier for mo~n~i~g the atomiser an a supporl surf ace Fig. 2S is a rear ele~ational Yie~ of the carrier;

Fig. 26 is a perspective ~r~ e~ ~f another carr- er for the atomi~er Fig. 2 7 i s a ~ror~.. eleva.~ onal ~rie~ cl ~he carrier OL
Fis. 26 Fig. 28 is a side ele~ational ~iew of the carrier or Fig. 26;

Fig. 29 is a de~ai~ perspectiYe ~iew shawing por~ion of the carrier of Fig. 26;

ZO ~lg. ~0 is a siae el e~ra~;ional ~iew o~ ~he carrier portion shown in Flg. 29;

Fi~ 31 is a pers~ecti~e ~ie~ of another carrier for the atomiser:

W~9~J1111~ 2 1 4 9 1 5 3 PCT~1E93/000~4 Fig. 32 is a fronl ele~a~ional ~ie~ af ~he carrier with a front ~over of ~he carrier remo~ea;

Fig. 33 is a side sec~ionaL ele~~ational ~lew o~ ~he carrier port~on of Fig. 32;

Flg. 34 is a persDec-i~e vLe~ of ~he carrier portion of Fig . 3 2;

Fig. 35 is a DersDec~ive ~iew o~ ano~her carrler, and ~ig. 36 is a perspectrve ~iew of the carrier of ~ig 35 with a front co~er ,~oved.

1~ Referr-ng to the drawlngs, and inmtially to Figs. 1 IO S
thereof, there is illus~ra~ed a water atomiser accordiny to the i~ention indicated generally by the reference numeral 1. The water atomiser 1 has a.clear plastics con~ r 2 . A pump ~ is moun~ed on the c~nlainer 2 fo~
:_ dispensing warer _=~m the c~nrainer 2 ~s an a~omised 5pray- The ?umv ; incorpo_a~es an a~r vent passage Co~muniCalin~ ~e~ween an inte-icr and an exrerior or ~he con~ainer 2 to allo~ ai_ in~o the contaLner 2 as ~aler ~s discharged there~rom. Moun~ed on the pump 1 across Lhe ~ent passage is a filter 1 tO puri~y alr drawn into the container 2 ~hen wa~er is discharged from the conr~in~r 2.

The pUmD 3 has a cylindrical housLng 9 ~f plaslics mater~ al . ~ spring-loaded plunger 5 is sli~ably moun~ed wi~hin the housing 9 and projecls outwardly from an upper Z5 end of the housing 9. A pUmD inlet 6 a~ a lower end o~
the housing 4 has a feed ~uDe ~ ~ttached Ihereto and e~t~n~ing downwardly t~ a b~ m of the conr~i n~ 2. A
~ fluid passa~e throlgh the plunger 5 leads to a pump outlet 8. A nozzle 10 with a discharge opening ~1 is ~ounled at ~ 94/lllI~ 214 915 3 PCTJI~g3/0~54 the pU~D ou~le~ ~ ~o produce a fine a~om~ sed wa~er ~ist when ~he pumD ' is opera~ed.

A mounting rlange 14 pro~ec~5 outwardly of Ihe housing ~.
An outer edge 15 of .he fl~nge 14 is a sna~-fit into engagement witn a periphery of an open1~g ~t a ~op af the con~ ~ 2 for mounting the pump 3 on the cont~iner 2.
A ~ent passage passes Ihrough ~he housing 9 IO vent air into the conl=1ner 2 as the pump 3 is aperated. The filter 4 is mou~lea ~e~een the housing ~ and the ~1ange 14 across the vent passage to f11ter ~ir ~enled into the con~ 2 Referring now i~ part1cu1ar ~a Figs. ~ ~o S ~he filter 4 is shown in more de~ail T~e filler 4 comDrises a pl~s~ics ho1der 20 hav1ng a tu~ular body 21 which is a sleeved fit on an exterior of ~he housing 9. An annular ~1~nge 2Z i5 Droviàed at an uQDer end of the body 21 and has an upslanain~ periDheral ~im 23. ~ numner of spaced-aDar~ ~hroucn -~les 2~ ~orming ~ir ~en~ .~oies are pro~idea around the fiange ~2. These ~rough holes 2~ are co~ered 20 ~y an annular membrane _iller ~6 ha~ring a pore si~e o~ O .2 microns. It w~ e no~ed th~ an inwardly direc~ed lip 27 is pro~idea al a ~ower end o~ the ~ody Z1 to form an energy direc~or for ultrasonic we1ding of the holder 20 ~o an exterior of Ihe pump housing 9. Si ~ 1y ~n upper end o~ the rim 23 i5 Pro~ided wit~ a po~nted t1~ ~R forming an eneryy di~ec~or lor u1trasonic ~~eldiny of the rim 23 to an undeTside of the ~lange 14 of the pUmD 3.

In use, the conlainer ~ is f~11ed with pure waler. ~e pump 3 can be opera~ed by depressing and ~eleaslng the plunger 5 as desire~ to dlschar~e water in a fi~e a~o~ised spray Am~ien~ air i5 drawn in rh~ouah ~he ven~ passage as the pUmD ~ 15 o~era~ed and is filtered as it passes ~h~o~lgh th~ memD~n~ ~ll~er 26 ancl intn the conta~er 2~

~94/11115 214 915 3 PCVIE93/~05~

The filter pore size is such tha~ it 'crms a ~arrier to any bacteria thus ensuring the purity o~ the water within ~he contalner Z is main~ained durT n~ use . 'rhere LS, ho~ever, sufficient ai~ mo~e~ent throuah the filter so S ~hat the spray r~in~ effec~ive and 'ine. A ~yplcal Gurley air flow for the filter is rated at Z7.4 seconds/lO0 cc. The mem~rane i5 hydropho'oic with a wa~er ~re~kthrough at 32 psi The in~ention oro~ides a water atomiser which is ~O mechanically operated ~or deli~ery o~ a finely atomised mist of pure ~a~er. The ~ater i5 discharged as an aerated spray which gives a fine dlstr~ution of wa~er mist.
~dvanl~geo~sly ven~ ~ir drawn in~o the container during u~e is fiLtered IO prevent cont~inAIion af the water in lS ~he container. ~he filter constr~ction and m~eri~ls are chosen ~uch ~hat ~he fi1ter re~els water for good filtratlan wlthcul unduly restricting vent a~r flow through the fil~er which would ad~ersely affec~ spray ~orma~ion.

A chemical orese~atlve co~ld be a~ded ~o the waler in ~he cont~ in~ to neulralise an~ ~acteria, s~ores ar the like whic~ might enter the bottle from a ccn~aminated ~mnient air suDply. Howe~er, th-s would detract ~rcm Ihe puri~y of the wa~er and w~uld thus make it le~ a~tracti~e or ~n 2S Qome cases unacceplable to many people. ~y use of ~echanical filtr~tion advantageously the purity of t~e wa~er i5 maintained to provide a natural product ~hich is safe on all skins, includlng a young-ch~ld's skin, without the risk of allergies for exa~ole ~hich might arise with the use of a chemical preservati~e.

Referring now to Fig 6 there is illus~r~ed anolher ~ilter holder 30. This is slmilar to Ihe holder desc~i~ed previou~ly ~ith re~e~ence ~ F~ g~ 3 to 5 a~d llke parts '' 2149153 ~9~ PCT~IE93/000~

are ass~gned ~e same reference numerals In this case through holes ~i for through passage c~ ai~ a~e pro~ided where the body ~1 meels the flange 22.

ReferrT ng now _o Figs . t ro 10, ~n allerna~ e filter assem~ly for the atomlser is shown and indicated generally by the re~erence numer~l ~5 ~he ~ lter assem~ly 35 comprises an ourer housing 36 and a complemen~ary inner houslng 37 enqa~able ~ithin the ol~ter housing 36. T~e outer houslng 35 has a ~u~ulal bod~ 3~ definin~ a bore 39 for reception af the inner housing 3~ an~ through passage of the pump housing 9. A lower end 40 of ~he housing 3 has a stepped cen~ral ~hrough hole 41, an inner porlion 42 of ~hich rece~ ves an O-rLng seal 43 . An outwardly ex~ending flanae 44 at an llpper end of .he housing 38 has 1~ an upst~n~ing peripheral r-m 4S A n~m~er of spaced-apar~
Ihrough hole5 ~6 are pro~ided in the flange 44.
re~i n i ng ridae 47 is ~ro~ided on an ~ner side wall of the rim 45 , or -etention of the inner houslng 37 ~i~hin _he ou~er nous~-g 36. The ~nner h~si-.~ 37 nas a ~ubular ZO boay ~8 de~ .a a bo-e ~9 fo~ rece~lon OI ~he pum~
housiny 9. A Clanaed upper end 50 of .he inner housina ~ 7 has a nu~Der of through holes 51 associa~ed with ~he holes 46 in Ihe outer hous ~g 36 The l~ner hou~ing 37 is en~agable wi~hin the ouler housing 36 ~o securely engage 2S an annular ~ilter ring 52 be~ween the langes 44, 50 of Ihe housings 36, 3~. A botlom wall af the inner housing has a cenlral =qrough hole 53. Fig. lO shows the ~ilter assembly ~5 mounled within a neck 54 of the con~i n~ - 2 .
It will be noled thal an outer sur~ace ~5 o~ the rtm 45 oI
.he a~ler housirg ~6 sealingly engages an inner surface or the neck 5~ C ~ilter assembly 35 iS ~ push flt into engagemen~ with ~he neck 54 of rhe con~ainer 2. The pUmD
3 is mounled on the conlai ner 2 w- ~h ~he pUmD housing g passi ng do~nwardly th~ough the inner hou5ing 37 and ~rojecting through Ihe holes 41, 53 Wltn an air~igh~ se~l ~ -9~/1l11~ 2 1 4 9 1 5 ~

being made wi;h Ihe pu~p housing ~ at the ~ottom of ~he housings 36, 3~ by the o_ning seal 43 Venl air is t~us o~liged to pa~s ~hrough the filter ring 52 lnto the container 2.

5 Ref erring now .o ~igs 11 tc 14, there is shown another fllter assembly 160 for ~n atomiser of the type pre~iously described. In thi~ case, the filter assem~lv 16~
comprises a pair of filter support plates, namely, an upper filter su~ort pla~e 161 and a lower filter suppor~
plate 162 The u~per pla~e 161 has a cenlral ~hrough hole 163 with a number of radial slots 16~. These slots 164 all~n with assoclated ~hrough holes 1~ ln the lawer pl~e 162. The lower pla~e 162 has a cen~ral through hole 166.
An annuLar ~ilte~ sheet 167 is moun~ed ~e~ween the pla~s 161, 16Z. A ~ilter plate support 168 is mounled in the neck 54 o~ a conr~ in~r 2 as pre~iously shown in Fig. 10, a ~ubular ~ody i6g o~ the support 16~ ~ealingly engagln~
within the neck S~. The filter plates 161, 162 are received within a ~ore 170 of the su~ort 168. The pump ~0 housing g passes ~own Ihrough ~he filter plates 1~ 62 F1g. 14 shows rhe ~ilter plates 1~1, 162 ~hich can ~e integra11y moulded of plas~lcs ma~er~ al ~ith an nlerconnecting integral h~nge 172.

Reforring now to ~igs. lS a~d 16 there is illustra~ed 2~ por~ion of anather waler atomiser 6~ largely si~il~- ~o the water atomiser of Figs. 1 to 5 and liXe par~s are assigne~ the sa~e reference numerals. In this case ~he alomiser 60 has a f~lter holder 6} ln the form ~ an annular r~ ng having a central ~ore 62 for sliding engagement with the pump housing 9 An 0-ring 63 may op~ionally ~e pro~ided ~ithin the ~ore 62 to ensure an alr-~ight seal ~e~ween the holder 61 and Ihe pump housing 9 A numbe~ of spaced-aDart ~hrough holes 6~ are pro~ided a--o~sld ~he h<~ld~r 61 lrl 5;T1~ ash~on ~o the previously wo ~1111~ 214 91 S 3 PCT/IE93~000~

descri~ed holders. An annular filter sheet 65 is moun~ed on the holder 61 across the hoies 64. On an upper surface of the holde- 61 an unwaraly projec~ing ring 67 is provided adjacent a perip~ery of the holder 6i, the rinq ~o~ming an energy d~rec~or for ultrasonically welding the holder 61 to an underside of the flange 14 of the pump 3.

Re~errlng now tO ~ig5 17 and 18 ~here is ilI~sLra~ed por~ion or ano~her a~omiser 70 wh~ch is larsely similar to the atomiser of Figs. 1 IO 5 and like par~s are assigned 1~ the same reference numerals. In this case a filter assembly 11 is provided having a holder with a t~bular ~ody 72 engagable with an upper end of ~he pu~p housing 9.
An upper end wall 73 or the body 72 has a central through hole 74 for throu~h passage of the pump pl~nger 5. An alr-t~ght seal is pro~ided ~y an O-ring t6 mounted be~ween an inner face o~ the end wall 74 ~nd ~he plunger 5. A
spacer washer 77 is moun~ed between an underside of the O-ring 76 ana the u~per end 7B of the pump hous ing ~
This snacer w~sner 77 has a radial slol 79 which extends 0 ~utwardly o~ t.~e C-ri~g 76 to allow ven~ alr IO pass under ~e O-ring 76 and down thr~uch a venl passage formed be~ween an ex~erior of the pump plunger 5 and ~e associa~ed bore ~n the pump housing 9 within which the plunger 5 i5 mounted. An annular fi~ter ~hee~ B0 is 2~ mounted on the end wall 73 co~erlng a num~er o~ ~ent holes 8l passing t~rough the end ~all 1~.

In use, the a~o~~ser 70 is used Ln simil~ fashion ~ the atomi~er of Fias. 1 IO 5. As an a~ ight seal is formed between t~e body 72 of ~he filter holder and pump housing 9 and plunger 5, ~en~ air must tra~el ~hrough the ~llter sheet ~0, under the O-ring seal 76 and down~ardly along the olunger exlerlor inlo ~he contai~er. I~ ~ill be appreciated tha~ the ~ilter assem~ly ~1 can be readily eas- ly fit~ed on the a~3miser 70 and may either ~e ~ g~"~ 2 1 ~ 9 1 ~ 3 1~

provided Wit:~l t}le atomiser or a5 a separa~e unit ~or fitting on atomisers of this ~ype.

Referring now to rigS. 19 tc 21 ~here is illus~rated anothe~ ato~iser g a, again largely similar to the a~omiser 5 of Figs. 1 to 5 and like parts are asslgnecl the sa3ne reference numera}s. In this case ~he ato~iser 90 has a filter assembly 91 ha~ing a filter holder wi~h a tu~ular body 92 which loosel~ engages around an upper end g3 of the pump housing 9. An up~er end wall 94 of the body 9~
10 has a central ~hrough hole 95 ~or ~hrough passage of the pump plun~e~ 5. An 0-ring seal 96 is provi~ed at t~e hole 95 lo gi~e an air-light seal ~etwaen the end wall 9~ and the plunger 5. An outwardly ext ~n~ i ng flange 97 on the body ~2 is a snaD-~it in engagemenl with the outer edge 15 of the pump moun~ing flange 14. A f~lter sheet ~ is supported an the flange 91 across ~ent holes 99 in the flange g7.

The a~omi~er ~0 is used in simil~r fashion tv the prevlously described a~omlsers, vent ~ir passi~g ~hrough the filter shee~ 98 UD be~ween ~he ~ody g2 of ~he holder and the pump housing 9 passing between the plunger 5 and its a~sociated bore in the pump housin~ 9 for exit into the con~alner ~.

Refer~ing now to Figs. Z2 and 23 I~Lere i5 illustrated Z5 another atom~ser 1~0 generally sLmilar to the atomiser of Figs. 1 to 5 and l~ke par~s are assigne~ the same rererence nu~erals In ~his cas~ the ~ent pas~age 15 formed by a vent pipe lOl passing through the ~ount~ ng flange 14 of the pump housing g. A filter halder 102 is ~D moun~ed at an outer end of I he vent pipe 101 supporting a ~lter sheet 103 moun~ed acrD~ an ir~let end 104 of the ~en~; pi~e 101. The filte-- shee~ 103 i5 relained ~ehind a pro~ective co~er lûS having ~hrough holes 106 for fr~e WO94/11115 21~ 9 15 3 PCT/lEg3J0~54 flow o~ air -hrough ~he co~er ~Q5 The ato~iser lO0 is opera~ed in sImilar f ashion ;o the pre~ious~v descrlbed a~omisers.

~eferring no~ to Figs. ~4 and 25 there ls illustrated a carrier 260 for a water atomiser of the ~ype previously descri~ed. The carrier 26~ has a hausing 261 ~or reception of a water atomiser '. When mounled within the ~ousing 26~ ~he discharge opening ll of the noz21e lO of the a~omiser 1 aligns with an outle~ opening 26~ in a fron~ wall of the housing 26i. An operaling button 26~
mounted on a top of the housing 25l is opera~le to move the noz2le lD and hence the pump plunger IO discharge fine spray of waler f-om ~he alomiser l. Fig 25 sho~ a rear wall 265 of .he housins 261 which has a pair of spaced-apart in~erted keyhoie-shaped slo~s 266 ~or engagement wi~h screw heads to demountably secure the housing 261 on a suPDor~ sur-ace such as a w~ll or the like.

It will be aD~rec~a~ed Ihat =he ~arrler ~ may also 'oe 2Q used ~or olhe- Iypes of wa.e~ ~omiser in aadition to ~he one~ descrlbea herein.

Referrlng now ~o Figs. 26 to 30, t~ere is sho~n ano~her atomiser car-ier de~ice 120. The de~ice 120 has a ho~sing within which a~ ato~~ser 1 is mounted. ~he alomiser ~5 l is mounteà on a supp~rt 124 having a frame 12~ ~or receplion of an ato~iser l The _rame l~ ls supported on a pi~ot llnX 126 having incli~ed pi~ot ~rms 127 al eac~
side of the frame 12S lower ends of each pi~oL arm ~eing pi~otally moun~ed on ~he housing l~l. An operating b~t~Dn 12~ engaqes Ihe frame 125 through llnk arms 130 ~ U-shaDed guide 13l is prD~ided withln whlch the bu~on l~9 is slidable . UDon mo~i ng the l:~ut~on 12~ inwardly in ~he direc~ion o~ ~rrow X (Fi~. 30) -che a~ms 127, 130 mo~e ~he - ~g~J~ 214 915 3 PCT~IE~3/~4 frame lZ5 upwardly to engage ~h~ nozzle head 1~ a~ainst a s~op 135 thus deli~erinq an atomised spray of wa~er on ~m~n~ from ~he de~ice 120. A re~urn spring 136 connec~s be~ween a l~er end of ~he rame 1~5 and the housing ~o S re~urn the ~rame 125 to the lowered position when the button 129 is relea~ed.

~e~erring to Figs 31 to 34, another dispenser de~ice 140 is shown. ~he devlce 140 has a housing 141 within which is mounted a bo~le holder 142. As can be seen in Flg.
32, ~he atcmiser 1 is housed ~ithin ~he 'oo~tle holder 142 with the nozzle por~ion 10 rest~ng agains~ a stop 143 a~
a top o~ the ~ottle holder 14Z. A ~ottle raisin~ ca~ 145 is pi~otally moun~ed on a ~ase 14 6 of the bo~tle holder 142 by means o~ a pi~ot pin 147. Downwardly depending flanqes 149 at a bo~om of the bottle hol~er 142 slidably ~eceive an operating button 150 for actuation of t~e cam 145. Slot~ 151 ~n the ~u~on 150 slidahly enyage ~he ~langes 149 Upon depressi~g the ~u~ton 15Q, ~he cam 145 pivots to raise ~he bo~,le within the bo~le holder 142 thus operating the nozzle 10 to discharge a fine atomised mis~ of wa~er.

Referring no~ to Figs. 35 and 3b r there i5 illUslrated another carrier 180 comprising a ho~sing 1~1 within which an atomiser 1 is mounted ~he nozzle 1~ of the atomiser 1 is aligned ~ith an oulle~ hole lB8 on the housing 181.
An operating bu~on 184 is oper~ble ~o pi~ot ~n actuating cam 186 by means o~ a dri~e mo~or acting thraugh a gear train 187 ta operate the no2zl~ 10 for discharge ~f an atoml~ed spray of water from the atomiser 1 .

~O The invent~ on is not llmi~ed to the embo~i~n~s hereinbefore descrihed ~h~ch may- be varied in bor~
cons~ruc~ion and detail.

Claims (26)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:-
1. An atomiser, comprising a container for liquid, means for dispensing liquid from the container as an atomised spray, an air vent passage communicating between an interior and an exterior of the container, and means to purify air drawn into the container through the vent passage when liquid is discharged from the container.
2. An atomiser as claimed in claim 1 wherein the means to purify air is a filter mounted across the vent passage.
3 An atomiser as claimed in claim 2 wherein the filter has openings for through passage of air, said openings being sized to block harmful bacteria.
4. An atomiser as claimed in claim 3 wherein said opening are of a size no greater than 0.2 microns.
5. An atomiser as claimed in any or claims 2 to 4 wherein the filter is of a material which is resistant to the liquid in the container.
6. An atomiser as claimed in any preceding claim wherein the filter is mounted at an inner end of the vent passage within the container.
7. An atomiser as claimed in any of claims 1 to 5 wherein the filter is mounted at an outer end of the vent passage.
8. An atomiser as claimed in any of claims 2 to 7 wherein the filter is supported on a holder mounted across the vent passage.
9 An atomiser as claimed in claimed wherein the holder has a number of through holes across which the filter is supported.
10. An atomiser as claimed in any preceding claim wherein the dispensing means is a pump.
11. An atomiser as claimed in claim 10 wherein the pump has a housing through which the vent passage passes, the holder being mounted on the pump housing across the vent passage.
12. An atomiser as claimed in claim 11 wherein the pump has an inlet for communication with an interior of the container and an outlet with a spray nozzle for discharging liquid from the container in an atomised spray, a spring-loaded plunger slidably mounted within the housing and projecting outwardly therefrom, operable to deliver liquid between the inlet and the outlet, the housing having an outwardly projecting mounting flange for engagement with a periphery of an opening in the container to mount the pump on the container, the filter holder being mounted between the housing and the flange across the vent passage.
13. An atomiser as claimed in claim 12 wherein the filter holder has a tubular body which is a sleeved fit on an exterior of the housing beneath the flange, the body having a flanged upper end with a number of spaced-apart vent holes across which the filter is mounted, an upstanding peripheral rim of the upper end engaging the pump mounting flange.
14. An atomiser as claimed in claim 12 wherein the filter holder is ring-shaped with a central through hole for engagement around the pump housing, an air-tight seal being provided between the pump and the body, the filter mounted an the body across a number of vent holes passing through the body, an upper face of the body engaging an underside of the pump mounting flange.
15. An atomiser as claimed in any of claims 12 to 14 wherein the holder, the housing and the flange are of plastics material, the holder being ultrasonically welded to the housing and the flange.
16. An atomiser as claimed in claim 12 wherein the filter holder has a tubular body engagable with an upper end of the pump housing, an upper end wall of the body having a central through hole for through passage of the pump plunger, an air-tight seal being provided between the end wall and the plunger, the end wall having a number of vent holes across which the filter is supported.
17. An atomiser as claimed in claim 12 wherein the filter holder has a tubular body which loosely engages around an upper end of the pump housing, an upper end wall of the body having a central through hole for through passage of the pump plunger, an air-tight seal being provided between the end wall and the plunger, a flange extending outwardly of the body to engage the pump mounting flange, the filter mounted on said flange across vent holes in the flange.
18. An atomiser as claimed in any of claims 1 to 11 wherein the vent passage is formed by a vent pipe passing through the pump housing, the filter being mounted at an outer end of the vent pipe.
19. An atomiser substantially as hereinbefore described with reference to the accompanying drawings.
20. An atomiser as claimed in any preceding claim containing pure water for discharge as an atomised spray.
21. A filter assembly for an atomiser as claimed in any preceding claim, the filter assembly comprising a filter supported on a holder having means for mounting the holder on the atomiser across the air vent passage.
22. An atomiser system comprising an atomiser as claimed in any of claims 1 to 20 in combination with an associated carrier, the carrier comprising means for reception of the atomiser and means for mounting the carrier on a support surface.
23. A system as claimed in claim 22 wherein the carrier has means to demountably secure the atomiser thereon.
24. A system as claimed. in claim 22 or claim 23 wherein the carrier has a housing for reception of the atomiser with a discharge opening through which the atomised spray is directed, and actuating means for operating the atomiser when it is mounted on the carrier.
25. A system as claimed in any of claims 22 to 24 wherein slots are provided in a rear wall of the housing for reception of mounting screws to demauntably secure the carrier on an upright support surface.
26. A system for an atomiser substantially as hereinbefore described with reference to the accompanying drawings.
CA002149153A 1992-11-11 1993-11-11 An atomiser Abandoned CA2149153A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IE922807 1992-11-11
IE922807 1992-11-11

Publications (1)

Publication Number Publication Date
CA2149153A1 true CA2149153A1 (en) 1994-05-26

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ID=11039798

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CA002149153A Abandoned CA2149153A1 (en) 1992-11-11 1993-11-11 An atomiser

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US (2) US5727715A (en)
EP (2) EP0812625A3 (en)
AT (1) ATE163578T1 (en)
AU (1) AU5376294A (en)
CA (1) CA2149153A1 (en)
DE (1) DE69317310D1 (en)
WO (1) WO1994011115A1 (en)

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Also Published As

Publication number Publication date
EP0682568A1 (en) 1995-11-22
ATE163578T1 (en) 1998-03-15
US5727715A (en) 1998-03-17
WO1994011115A1 (en) 1994-05-26
EP0682568B1 (en) 1998-03-04
DE69317310D1 (en) 1998-04-09
US6082592A (en) 2000-07-04
EP0812625A3 (en) 1998-01-14
AU5376294A (en) 1994-06-08
EP0812625A2 (en) 1997-12-17

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued