WO1998011995A1 - Outlet valve, especially for a hand pump, and the pump - Google Patents

Outlet valve, especially for a hand pump, and the pump

Info

Publication number
WO1998011995A1
WO1998011995A1 PCT/EP1997/002283 EP9702283W WO9811995A1 WO 1998011995 A1 WO1998011995 A1 WO 1998011995A1 EP 9702283 W EP9702283 W EP 9702283W WO 9811995 A1 WO9811995 A1 WO 9811995A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
outlet
position
element
closure
pump
Prior art date
Application number
PCT/EP1997/002283
Other languages
German (de)
French (fr)
Inventor
Fritz Meckenstock
Original Assignee
Fritz Meckenstock
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus
    • B05B11/30Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus the flow being effected by a pump
    • B05B11/3095Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus the flow being effected by a pump with movable suction side
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus
    • B05B11/30Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus the flow being effected by a pump
    • B05B11/3001Piston pumps
    • B05B11/3004Piston pumps comprising a movable cylinder and a stationary piston
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus
    • B05B11/30Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus the flow being effected by a pump
    • B05B11/3001Piston pumps
    • B05B11/3009Piston pumps actuated by a lever
    • B05B11/3011Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus
    • B05B11/30Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus the flow being effected by a pump
    • B05B11/3001Piston pumps
    • B05B11/3021Piston pumps having an outlet valve which is a gate valve
    • B05B11/3022Piston pumps having an outlet valve which is a gate valve actuated by pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus
    • B05B11/30Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus the flow being effected by a pump
    • B05B11/3038Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/304Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke

Abstract

Disclosed is an outlet valve provided with an obturator for an outlet from a chamber likely to be pressurized, including a pump chamber, which, once a set pressure level is reached, triggers the outlet opening. In order to enable 'pre-charging' using a simple assembly, the invention suggests that the obturator (8) shall be able to move in a straight line from an obturating position to an opening position, and that movement towards the opening position shall run against a force exerted by a spiral spring or a bellow-type spring.

Description

00001 outlet valve, in particular for a handbetäticrte 00002 pump and handbetäticrte pump 00003 00004 The invention relates to an outlet valve with a Ver00005 circuit member for closing a discharge port 00006 of a pressurizable chamber, in particular a 00007 pump chamber, which opens the 00008 outlet opening at a predetermined pressure and a hand-operated pump which is 00009 in particular suitable for an atomizing delivery of liquid 00010 media from a storage container and comprises a 00011 an inlet valve and an outlet valve having 00012 -Pumpenkammer. 00013 00014 Such exhaust valves and pumps are known in a number of variants Viel00015. In DE-A 44 11 031 00016 a hand-operated pump is disclosed, in which a pump chamber 00017 by a stationary piston and a comparable 00018 displaceable cylinder - is surrounded - with respect to a sheet fixed 00019 Pumpengehäuεe. Is the volume of 00020 versus each by shifting of the piston and cylinder 00021 vein reduced until 00023 en nozzle-side discharge valve is built up within the pump chamber 00022 corresponding to the volume reduction of a pressure on the way for beispielswei00024 se a liquid medium from the pump chamber releases. 00025 It has, however, shown that the response is not made 00,026 of these exhaust valves for some applications with 00,027 sufficient uniformity. 00028 00029 This raises the problem, the response of such 00030 exhaust valves, in particular for the above-mentioned 00,031 pumps in the simplest possible, however, to improve kon00032 structurally reliable construction. 00033 00034 This technical problem is firstly and handy in wesent00035 solved in the subject matter of claim 1, wherein the 00036 is based on the fact that the closure element

00037 linearly between a closed position and an open position

00038 position is movable, and that the movement of the disclosure m

00039 position against the force of a spring coil or a

00040 bellows done. It is envisaged that in a

00041 predetermined pressure, the closure element after a successful

00042 pressurization opens almost instantly. This may be the

00043 different ways to achieve. In an execution

this is 00044 approximate shape by the use of the bellows

00045 supports that after pressure build up almost

00046 can move suddenly into the open position. at

00047 another embodiment, and preferably also if necessary

00048 m combination with the bellows, this is a

00049 idle stroke of the valve piston published in a valve cylinder

00050 ranges, and only after passing through this idle stroke

00051 takes place the opening to the spray channel. accordingly

00052 fast will the pressurized contents m

00053 of the chamber, preferably a pumping chamber and released

00054, for example, can escape. Through a nozzle. If a spring

00055 is used bellows, the structure of the bellows

00056 this advantage. In comparison to a pressure spring

0 0 057 of the metal were, only two states having

00058 bellows, namely an unfolded and folded,

00059 may correspondingly quickly - possibly after a certain

Open 00060 "starting distance". A change of this effect

00061 tes could even after a large number of load cycles

not be determined 00,062th A afterwards with metallic

0 0 063 springs occurring change in Elastizitätsverhal-

00064 least could not be observed. such a

00065 behavior is particularly pumps be desired which

00066 m irregular intervals are used merely

be the 00,067th it is off to an advantageous further

00068 provides that the outlet valve of the Pumpenkaπ-mer linear run, up s in an outlet opening of a shutter 0007 0 0069 0 position against the force of a bellows in an open position 00071 displaceable closure element

00072 points. As a result of this training is over the

00073 known pumps an extremely compact design first

00074 achieved. Structurally simple, but high functional

00075 onssicherheit, is also the arrangement of the Verschlußele-

00076 mentes of the exhaust valve directly into the Auslaßöff-

00077 voltage of the pump chamber. The support of the Verschlußele-

00078 mentes is preferably carried out by a pressure-spring force

00079 of Federbalgeε through which the closure element in

00080 the closed position is held. For this purpose the spring

00081 bellows, for example, between the closure element and

00082 arranged the casing of a pump. Following a

00083 such an arrangement, in the open position of

00084 closure element tensioned bellows from which the

00085 pump chamber exiting medium flows around. After

00086 the pressure has degradation of the bellows may optionally

00087 in its expansion and the associated movement

00088 gen of the closure element in its closed position

absorb 00089, for example, liquid in its interior.

00090 Even thus is the spring characteristic of the spring

00091 bellows then also determined. In a tight connection

but 00,092 of the bellows to the housing can also be a

00093 other filling medium be provided or a compound

00094 to the surrounding outside air, the air then the inside

can communicate 00095 half of the bellows. this addressed

00096 rupted measures allow a wide influence on the

00097 behavior of the bellows and thus an adjustment

00098 of the opening characteristic of the closure element in

00099 the use of one and the same type of Federbai-

00100 tot. In further alternative embodiments of the

00101 pump is provided that the exhaust valve in a

00102 linear run an outlet port of the Ftmpenkammer,

00103 from a closed position against the force of a spring

00104 displaceable in an open position closure element

, Said movement hergestell- into the open position against the force of a 00106 in the plastic injection molding process 00105

00107 th spring, whereby the spring further from

00108 a central region two oppositely aligned,

00109 each spiral shaped spring arms eist.

00110 Erfindungsge AESS is recognized that such a

00111 spring with reliable spring property just in

00112 plastic injection molding process can be established.

00113 By the middle area comparable in terms of volume

00114 is the same as made large, is a key

00115 injection point for the oppositely extending

created 00116 spring arms. In further embodiments

00117 also envisioned that the central region annularly

is formed 00,118th Alternatively, the spring, the forthcoming

00119 Trains t of the closing element integrally molded

00120 is, substantially helically, spirally, or

00121 be formed of the same diameter, wherein in weite-

00122 rer preferred embodiment of a closed ring

00123 provided for the top side to support the point in the housing

hen is the 00,124th In a further development is appropriate for the

00125 closure element provided that said one vorste-

00126 Henden pin demonstration that m a to the pump

0 0 1 27 chamber adjoining the first portion of the Auslaßδff-

00 1 28 engaging voltage. This pin are two meanings

00 to 1 29. First, it serves to guide and optionally

00 1 30 centering of the closure element and on the other

00131 it reduces the earnings allocated to the chamber volume volume

00 1 32 men of the first portion of the outlet opening. This is

00 1 33 particularly advantageous when the volume of the

0 0134 pump chamber of a pump for the first time by the Einlaßven-

Til 00135 is filled to be contained in the chamber,

to keep 00136 compressible residual air as small as possible.

00137 purpose it is provided in a further development, that the pin

00138, the volume of the first portion of the outlet opening

00139 almost completely fills. Depending on the design of the

001 40 exhaust valve may extend into the eigentli- 00141 before Pu-tpenkarrimer also the pin. It is thought

00142 that over the entire axial extent of the first

00143 portion likewise extends the pin. In

00144 radial direction between the wall of Auslaßöff-

00145 voltage and the pin provided little play, so that

00146, the pin in the first section largely

can move without friction 00,147th A preferred means 00148 further provides that the pin up on the side of the closure element 00149 a Ouerschnittsverdickung

00150 points, which in the closed position the first exhaust

00151 of the outlet opening cut sealing closes. By

00152 This design of the closure element is a first

00153 measure for sealing the outlet opening and thus the

00154 given pump chamber. These preferably widens the

00155 outlet opening in its end portion conically, in WEL

00156 before expansion then with chamfered mating surfaces of the

00157 Ouerschnittsverdickung engages, whereby a funnel

00158 like nested, self-centering

00159 conditioning the Ouerschnittsverdickung and the wall of

00160 outlet port is given. With regard to the closure

00161 element refers to all embodiments described

00162 forms of importance that this in the outlet opening,

00163 in which the closure element is guided, at least

is guided stiff in a first path 00,164th These

00165 binding is preferably a Ü_.ermaß of

00166 Verεchlußelementes reached. If, for example. The Ausgangsöff-

00167 voltage internal dimensions of 7 mm, then the tolerance

00168 tolerance provided between 7 mm and 7 mm minus 1/10 mm,

00169 on the other hand, the closure member having an outer diameter

00170 7.1 min as a minimum and possibly to a tolerance

00171 up of further 10.1 to 10.2 mm. In a further advantage -

00172 example embodiment, the locking member and the

00173 bellows, or the entity specified in Kunststoffspritzverfah-

00174 ren spring made, with a continuous spiral

00175 or with two oppositely directed spring arms 00176 and, if appropriate, the pin einstuckig from Kunstsoff

00177 formed provided. For example, as an injection molding

00178 produces, thereby is a unit of individual

created 00179 components and thus a reduction of

00180 total components of such a pump through the Reduzie-

00181 tion of the components is also the Funktlonsεicherheit

increased 00182 arrangement again. In further embodiments

00183 provided that the closure element with plate-shaped

00184 formed radially outward peripheral lip abkragender

is 00185, which m the closure pitch in a dichten-

00186 the plant within a second portion of

00187 outlet opening is present, to the open position for a

00188 third section of widened cross-section Toggle

00189 includes, in which the peripheral lip with radial clearance

trapped 00,190th In this way, also arises with the inclusion

00191 Drawing the formation of a pin, a quasi

00192 funnel-shaped construction of the discharge port with eingesetz-

00193 tem closure element dai. Since, in particular at a

00194 emstuckigen training from the closure member and spring

00195 bellows already largely a linear guide of encryption

00 1 96 gegeπen locking element, since this to the

aioεtützen 00197 bellows over its circumference evenly

00198 can, is also at the outlet of the closure element from

00199 of the outlet opening, where a secure re-entry.

00200 In the exhaust port, the closure element is within

00201 of the second portion through the wall of the training

00202 laßöffnung adjacent edge lips gef hrt which here-

00203 are formed for resiliently In an alternative

00204 and prefer training is -jedoch provided that

00205, the closure element with a plate-shaped from the outer

00,206 rand projecting zylmderformigen sealing collar trained

is 00207 det which m closure position m a circumferential

00208 sided sealing engagement within a second waste

00209 section of the outlet opening is present this end, to-

00210 next important that by e ne such training 00211 fertil the closure element beispiels- technically simple

00212 example is run as an injection molding. A sealing

00213 conditioning of the sealing collar, for example, at a

00214 hergestell- of a comparatively soft plastic

00215 th closure element are already attained by

00216 that its outer diameter against the Innendurchmes-

00217 trained εer of the second portion with a T_rbermaß

det 00,218th Alternatively, also a ring on Dichtkra-

00219 be provided gen peripheral sealing lips. In a

00220 advantageous embodiment of the invention is also

00221 provided that the second portion has a radial

having 00222 Durchoruch, which in open position of the training

00223 laßventils released from the closure member, a

00224 spray conduit with the pump chamber via the outlet port

00225 combines. As a result of this measure, the Abströ- done

00226 men from the pump chamber is no longer axially with subse-

00227 ßender distraction, but the deflection is already

00228 within the second portion of the outlet opening. It

00229 is then advantageously the radial breakthrough

00230 directly with the nozzle having a spray conduit

00231 connected. So distractions are the emerging

00232 medium reduced to a minimum. This measure is

00233 m Verdi manure with a zylmderförmigen a Dichtkra-

00234 gen having closure element of particular

00235 advantageous if the axial height of the sealing collar greater

00236 than the axial length of the radial Durchbrucheε.

00237 This is a reliable guidance of Verschlußelemen-

00238 tes initially given. It is further provided that the

00239 Federoalg is guided within a tube, wherein

00240 more preferably, the tube in the extension of the second

00241 APscnnittes the outlet port is formed and the

00242 closure element bears sealingly in its open position in the tube 0024 ^, so the closure element is at the same

00244 sam a toggle to. In the closed position

00245 is concluded by the closure element, the Pu penkarπmer off 00246, whereas m in the open position of the

arranged bellows tube 00247 is completed. As a result

00248 of these measures the bellows will not be further from

00249 the effluent medium flows around. It can also

00250 for that reason outside the medium of the spring

00251 no longer bellows settle and for example,

00252 gumming impair the function of the bellows.

00253 It may Although this tube formed pupengehäusefest

However, to be 00254, it is preferred that de tube integrally

00255 is formed with the piston and that the tube ER,

00256 edge and the second portion by a Auslaßöffnimg

00257 trained the piston centrally penetrating Stufenbohjrung

00258 det s nd. This means that across the axial extent overall

00259 teaching approaches avoided and as a result a secure

00260 and sealing concerns of the closure element on the

where 00261 entire axial extent. It has also

00262, this arrangement a very small number -

00263 with a corresponding composition of the components -

00264 components only, namely the piston with

00265 tube and the bellows with sealing element and

00266 optionally cones. In a pump in particular with

00267 exhibiting one or more of the features described previously

00268 having exhaust valve, wherein said hand actuated the

00269 dei volume pump chamber for a pressure build-up reduziei-

00270 bar, it is further provided that the inlet valve

00271 and the exhaust valve is disposed opposite

00272 are, in particular on a common axis to the

00273 both valves also substantially rotationally symmetrical

Such a configuration prevents are formed 00274

00275 subsequent pressure losses m to the Pumpenkammei

00276 lines. Unimpeded entry and especially

00277 outlet of the stored in the reservoir flüssi-

00278 gen medium in the pump chamber or from the Pumpenkam-

00279 mer is in particular also present when the volume

00280 menreduzierung toeispielsweise by squeezing the pump 00281 Erik bunting along which the intake valve and the

00282 exhaust valve connecting axis. It is the

00283 valves as it were in the unchanging end faces

00284 of the pump chamber located centrally. such a

00285 volume reduction can be accomplished by Gegeneinanderverschie-

00286 ben of a piston and a cylinder are achieved.

00287 counter In such FΛimpen with nested,

00288 mutually displaceable on the push-in axis piston

00289 and cylinders which enclose the pump chamber,

further provided 00290 in that on the plug-in axis of the training

00291 laßöffnung reasonable in the extensive end of the cylinder piston

is arranged 00292 and that the closure element in the outlet

00293 orifice is used the pump chamber on the outside, which

00294 via the outlet opening lying on the opposite

00295 page arranged bellows pumpengehäusefeεt off

is based 00,296th In this way is a telescoped structure

00297, as it allows, in which the individual Funktionε-

00298 more elements in a direction inserted into each other

00299 are. In a row is extremely easy to install

reaches 00300 arrangement of the individual components. 00301

00302 of major importance and currently as Ausgestal-

00303 tung preferred over the above-described

00304 seal of the bellows or of the spring or of the room in

00305 wherein the bellows or the spring is arranged, by

00306, the closure element in its open position, is DER

00307 time, that this space communicates with the spray channel.

00308 This may be achieved by low splitting effect.

00309 It is essential that the process of the Verschlußelemen-

00310 tes into the closed position by moving up above

00311 side of the closure element in the space in which

00312 of the bellows or the spiral spring is disposed, a lower

00313 is negative pressure and thus a suction effect. this Saugef-

00314 fect drawn from the spray conduit fluid in this space a 00315. Herewith a possible drop will tilt the

00316 pump further reduced or excluded.

00317

00318 as the material for the sealing element and its

00319 preferably single piece spring or bellows is connected to the

00320 First POM in question. but more preferably is a

00321 soft polyester material. It has been shown that

00322 this material on the one hand insensitive prak¬

00323 shows all media conveyed with such a pump

00324, on the other hand also sufficient Federei¬

00325 genschaft and stability.

00326

00327 The invention is based on the drawings, in the ledig¬

00328 lich embodiments are illustrated in more detail erläu¬

00329 tert. In the drawing:

00330

00331 Fig. 1, a discharge valve in a erfindungsgeπiäßes

00332 hand lever-operated spray pump in his Ver¬

00333-circuit position,

00334

00335 Fig. 2 shows an enlarged detail of the exhaust valve

00336 of FIG. 1,

00337

00338 FIG. 3 at a pump according to Fig. 1 the outlet valve

00339 in its open position,

00340

00341 Fig. 4, the open position of the exhaust valve in vergrö¬

00342 ßertem scale

00343

00344 Fig. 5 is an enlarged illustration of a second

00345 Ausfülirungsbeispiels one exhaust valve in

00346 its closed position,

00347

00348 FIG. 6 shows the exhaust valve according to Fig. 5 in its Offen¬

00349 position and 00350 Fig. 7 shows an alternative embodiment bezüg00351 Lich of Fig. 5, in an open position 00352 of Fig. 6, 00353 00354 Fig. 8 shows a further alternative embodiment bezüg00355 Lich the formation of the spring, a 00356-sprayed in the form of spring with two oriented directions in entgegengesetz00357 th spring arms; 00358 00359 Fig. 9 is a detail view of a further alterna00360 tive closure element with molded-00361 coil spring. . 00362 00363 00364 Figure 1 shows a hand-operated pump, which at a 00365 nozzle of a reservoir - not shown - 00366 can be screwed. Upon actuation of the hand lever 00367 1 00368 3 of the cylinder is moved against the housing-fixed piston 4 upwardly through the second lever arm. 2 00369 result, the volume of the pump chamber 5 redu00370 is graced, see. Fig. 3, and will build up a pressure within this 00371. Against this pressure build a 00372 outlet port 6 of the pump chamber is closed by a Auslaßven00373 til 7. 5 For this purpose, the outlet valve 7 is a 00374 closure element 8, which is linearly movable between a closed position 00375 of FIG. 2 and an open position 00376 in FIG. 4. This movement takes place in the Offen00377 position against the force of the Verschlußele00378 element 8 supporting Federbalgeε 9. 5 has reached a certain value the pressure in the 00379 pump chamber, is 00380, the bellows 9 rapidly fold, approximately abruptly depending on the design 00381 and the ben way for 00382 the pressurized medium to a nozzle 10 freige00383. For a fine and uniform atomized Abga- 00384 be in particular should of liquid media this way

00385 be kept as short as possible.

00386

00387 The folding of the bellows 9 can hereby hin¬

00388 clear its temporal behavior by Wan¬

00389 are establ affected. It can counter

00390 above abrupt folding a

done 00391 continuous folding.

00392

00393 will After the pressure reduction in the pump chamber 5

00394, the force of the bellows 9, the closure element 8

00395 get back into the closed position and the Ausla߬

5 00396 complete opening 6 of the pump chamber sealing. Of the

00397 serving as a return spring for the lever 1 bellows

00398 12 causes movement of the cylinder 3 downwards

00399 and consequently again an increase in the volume

00400 of the pumping chamber 5, whereby a negative pressure is created.

00401 This vacuum the intake valve opens and 11

00402 is via the suction line 13 from the reservoir

00403, for example, liquid ange¬ in the ι? Umpenkammer 5

00404 sucks. At the same time, the hand lever 1 is again

00405 actuation position of FIG. 1 lacked. the Saug¬

00406, line 13, the inlet valve 11 and the exhaust valve 7

00407 are linearly one behind the other on a common

00408 axle 25 is formed. Pressure reducing Eckenui trömun-

00409 gen or the like are thus largely avoided.

00410

00411 Like the considerably enlarged illustrations according to

show 00412 Fig. 2 and 4, the closure element 8 in

00413 hole-like outlet aperture 6 is linearly displaceably

00414 out. A displacement from the closed position to

carried 00415 Fig. 2 in the open position of FIG. 4 thereby

00416 against the working manner of a compression spring Feder¬

00417 bellows 9. To this end, the bellows 9 is supported against the

00418 housing 14 of the pump. 00419 For an exact positioning jumps to the Gehäusem-

00420 nenwand 15, a pin 3 is present, on which the bellows

00421 9 is merely plugged. Accordingly, it may in the

00422 terminal region bellows 9-pin 23 to Undichtigkei-

00423 th come with the above described consequences. alternatives

00424 tiv can make a hole through the housing 14

00425 be provided, whereby the interior 16 of the Federbai-

00426 ges 9 directly mt ambient air koπ-cate

00427 can. 00428

00429 Next alternatively, but also from the

00430 Embodiments 5 to 7, to be aware provided that

00431 not only the exterior of the bellows 9 but also

00432 whose interior or in cross design

00433 also in terms of Fig. 8 and 9, the space above

00434 of the closure element, which then meters the helical

00435 or spiral spring is arranged with the spray channel 43

00436 communicates, in which case no connection to the outside

is given 00,437th This already beschriebe- to the above

00438 nen pumping or suction effect, for sucking back liquid from the 00439 ness sp_-00440 ühkanal locking element m to reach 43 during the movement of comparison the closed position. 00441

00442 The closure element 8 itself is dished trained

00443 det, wherein a peripheral lip 17 radially outwardly abkra-

is quietly provided 00444 As can be seen, this radial

00445 Abkragung achieved by a conical shape so

00446 that the edge of lip 17 is generally funnel-like with

00447 Lie a parallel direction of the longitudinal displacement zui

00448 constricting funnel axis extends. From the plate bottom 18

00449 of the closure element 8 protrudes a pin 19 in front of, WEL

00450 rather into a first portion 20 of the outlet port 6

00451 engages with radial play. The first portion 20

00452 6 of the outlet opening directly adjoins the pump

00453 chamber 5 at. carried out so far by the pin 19 and 00454, a volume reduction of the volume of Pufirtpei-kaπTmer

00455 5th 00456

00457 The pin 19 serves also to guide the comparison

00458 circuit element 8, as it also in the open position of

00459 exhaust valve 7 is usually the first still within the

00460 portion is trapped. By a further gradation

0 0461 in the longitudinal extent of the outlet port is a

0 0 4 62 second portion 21 is formed, whose cross-section

00463 to the requesting peripheral lip 17 is tuned,

00464 such that in the closed position of FIG. 2

00465 edge lip 17 in a sealing engagement within DIE

00466 ses second portion 21 abuts. A third waste

0 0 467-section 22 then has a cross section in which

00,468, the peripheral lip 17 in the open position of Verschlußelemen-

00469 tes is trapped 8 with radial play, so that between

00470 the wall of the outlet port 6 and the locking element 8

004 71 leakage of the pressurized medium from the

0 0 472 Purtirjenkammer 5 through the outlet opening 6 it passes OEG

0 0 473 light, see. Fig. 4. Due to the stepped cross

004 7 4-sections of the three sections 20, 21, 22 is as it were

0 04 75 a funnel-shaped inlet for the closure element 8

004 7 6 together. This is the example. Advantageous in view

00477 assembly. 00478

However, 0 0 479 Further preferred is that an outer diameter

00480 edge of the lip 17, down, on a larger area, with a

004 excluded Üjermaß 81 to the inner diameter of the outlet opening

00482 is formed. With regard to the embodiment of the

00483 Fig. 2 is in any case an excess to the portion 21

Optionally 0 048 4 of the outlet opening. In the above already

0 0 4 85 Maßverhältnisεe example. Mentioned referenced. From

00486 It is also important in further detail, that the

00487 edge lip 17 front edge, ie in the area of ​​their

00488 largest diameter is no sharp edges formed 00489, but rounded. The rounding can here very closely 00490 be formed, for example. With a radius of 10.1 mm 00491. It has, however, proved that these Einzelgestal00492 tung importance with regard to the long-term functioning of the 00493 pump. 00494 00495 journal 19, locking element 8 with the edge lip 17 and 00496 bellows 9 are switched in this embodiment, 00497 formed lumps. Thus, there is the exhaust valve 7 00498 consists of only one element, preferably a rule elasti00495 plastic, which interacts with the outlet port 6 of the pumping 00500 Erik Bunting 5, for which purpose it chamber externally plugged into the outlet opening 6 only pump 00501 is 00,502th 00503 00504 As shown in FIGS. 1 and 2, the cylinder 3 00505 and the piston 5 are inserted into each other according to the Pfeilrich00506 tung 26. The displacement of the cylinder 3 and piston 4 00507 is along the axis 25. Similarly, on this axis lying carried 00508 the displacement of the Verschlußele00509 mentes 8. in the insertion direction indicated by arrow 26 of 00510 piston 4 in the cylinder 3 and the plugging 00511 of the closure member 8 from 6. further arranged outside the pump chamber 5 00512 in the outlet opening on the axis 25 ange00513 takes place is the bellows 9 to the outlet opening of the 6 00514 opposing side of the closure element 8 ange00515 connected and supported as initially described at 00516 housing 14 of the pump. In consequence of this teleskoparti00517 gene structure, the pump can be assembled easily in total 00518 and is simple in the supply line to the nozzle 10 00515 applications. The bellows 9 will be imposed at this inserting 00520 due to its elasticity the pin 23 also easy 00,521th 00522 00523 Fig. 5 and 6 show a further preferred education

00524 guide for an exhaust valve in its Ge

00525 schlossen- and in its open position. The gezeig¬ there

00526 te piston 30 is correspondingly on the housing 31

set pump executed 00527 FIGS. 1 and 3 and

00528 forms a cylinder 33 from a pump chamber 32nd

00529 By axial displacement of the cylinder 33, see FIG. FIG.

00530 6, the pressure in the Puπipenkammer 32 is constructed,

00531 as long as the closure member 34 in the Ge

00532 closed position of FIG. 5 is located.

00533

00534 The closure member 34 is designed plate-shaped,

00535 wherein the outer edge 35, a cylindrical sealing collar

is formed 00536 36th In the embodiment shown in Fig. 5 comparison

00537 closing position is the sealing collar 36 in

00538 circumferentially sealing engagement within a second

00539 portion 37 of a stepped bore with a first

00540 section 38 and the second portion 37 formed

00541 outlet opening. 39

00542

00543 A pin 40 is the plate-shaped

00544 closure element 34 so formed before that the

00545 volume of the first portion 38 of the outlet port 39

is almost completely filled 00,546th With slight

00547 radial play within the first portion 38 is

00548 this ausge¬ fully over its axial extent

00549 fills. The volume of the discharge port 39 is thus

00550 almost completely with the initially described Vor¬

filled share 00,551th

00552

00553 on the side of the Verschlußeiementes 34 has the Zap¬

00554 fen 40 in a cross-sectional enlargement 41st With this

00555 Ouerschnittsverdickung 41 of the transition between

00556 to the first portion 38 and second portion 37

00557 sealed the outlet opening 39, to which the first section 00558 38 a funnel-like manner to splay outwards as

00559 while the annular shoulder of the cross-sectional enlargement 41

00560 is correspondingly tapered in opposite directions. is hereby

00561 a first sealing of the outlet opening 39 and the

00562 PutTpenkammer 32 reached. 00563

00564 The second portion 37 of the outlet port 39 has

00565 a radial opening 42. This one is special

00566 It benefits in also be sealed so that in DIE

00567 sem area in the closed position the Verschlußele-

00568 ent 34 by a plate-shaped configuration of the cross-

00569-section of the second portion 37 completely off

00570 fills. In the open position, see. 6 shows, this

00571 radial opening 42 of the closure member 34 free-

00572 given and thus there is a corresponding to the first

00573 embodiment of a nozzle having spray channel Direction

00574 43 via the outlet port 39 to the pump 32 Erik bunting

00575 directly can connect and there under pressure

00576 supernatant medium to be sprayed. The pressure buildup and

00577 pressure reduction is in this embodiment also

00578 by the constructive design of the Verschlußelemen-

00579 tes concomitantly influenced, since the axial height of the sealing collar

00580 is 36 greater than the axial length of the radial throughput

00581 bruches 42. In consequence, still remains at a comparable

00582 tively large initial compression of the

00583 bellows 44 in the pressure build radial breakthrough

00584 42 closed comparatively long until the bellows

00585 44 abruptly then occupies its folded position,

00586 and thus the radial opening 42 for pressure reduction

is released 00,587th 00588

00589 In this folding movement of the bellows 44 is within

00590 out of a tube 45, which is here integral with the

00591 piston 30 is formed and which on the Gehäu-

00592 s 31 of the pump is supported. Alternatively, the tube could 00593 45 also fixed to the housing walls or in combination

00594 fixed to the housing or piston-fixed portions formed

his 00,595th However, approaches would then of distress that the

00596 can cause a leakage problems and

00597 other a perfect sliding of the sealing collar

could prevent the 00,598th The inner dimensions of the tube

00599 45 are selected such that in the closed position

00600, the closure element 34 bears sealingly in the tube

00601 and thus the bellows 44 which from the medium,

00602 then exits through the outlet port 39, keeps free.

00603

00604 Such a configuration of the communication paths

00605 between an - not illustrated here - the nozzle and

00606 of the outlet opening 39 of the Pumper _ »_ aι-πmer 32 is the for

00607 connection required volume substantially reduced. In

00608 result of the present there for a spraying

00609 amount of medium to be sprayed it then bei¬

00610 game, also hardly be a dripping. This

00,611 at least not when in further detail how

00612 above and below still in further detail

00613 the suction effect of the space described above the

00614 closure element is added.

00615

00616 In particular, this outlet is in Verbin¬

00617 dung with the described pump for a Sprüh¬

00618 head operation. For example. in the form of a finger pump. Hier¬

00619 to is basically just a reversal of

00620 pistons and cylinders required and the training

00621 a manually operated spray head on now to verschie¬

00622 inputting piston.

00623

00624 The embodiment of Fig. 7 is linked to the Ausfüh¬

00625 approximate shape of FIG. 2. Here are three unterschiedli¬

to 00626 unter¬ surface portions 20, 21 and 22 of the outlet opening

divorce 00,627th It is essential that are formed 00628 inwardly projecting ribs 48 in the third section, 00629 whose inner surface 49 to a Innenflä00630 surface of the second portion 21 is formed approximately in alignment. The 00631 sealing lip 17, but which is cylindrical in this exemplary embodiment 00632 play (but nevertheless also 00633 corresponding to about the embodiment according to Fig. 2 trich00634 may be formed terförmig), is guided further in the course of 00635 opening operation by these ribs, 00636 if the path to the spray channel 43 is already open. 00637 This thus results in a much freer wear 00638 operation. In another advantageous embodiment, 00639 is in this case also be provided that the sealing lip 17 a 00640 one-sided, the spray facing Öffnungsaus- 00641 cut 50 on eist. The aperture segment 50 is adapted to the cross-section of the spray channel 43 about the 00,642th 00643 is essential here is also that the spray channel 43 has in 00644 a cross section perpendicular to the plane of an approximately 00645 semi-circular cross-section. 00646 00647 distributed over the circumference may be designed to 6 ribs 48 00648 about 4 hours. In height, they are limited in wesentli00649 chen on the third section. This has, moreover, a 00650 outwardly opening, in Quer00651 cut as seen circularly rounded profile to 00652 (in terms of the annular wall). In 00653 Furthermore, the extension of the sealing lip 17 is provided in its axial length 00654 so that even standing in Öffnungszu00655, as shown in Fig. 7, a guide remains by the ribs 48 00,656th 00657 00658 In the embodiment of FIG. 8, the Feder00659 bellows 9 is replaced by a coil spring 51. The Spiralfe00660 the 51 characterized by a central region 52 00661, which is plate-shaped or annular ausgebil00662 det. Starting from this central region 52 00663 two oppositely aligned, each spiral 00664 extending spring arms 53, 54 are provided. The spring arms 00665 taper upwards or downwards (with respect to 00666 the graphic representation) in its spiral on the central axis 25 toward 00667. The spring can be inserted as a single part 00668 or also be designed molded onto the Verschluß00669 element. Moreover, even 00670 may unilaterally, shell or the lower side, a spirally 00671 extending spring arm 53 may be formed 54th 00672 00673 In the embodiment of FIG. 9, only a 00674 Ver00675 is fragmentary and partially specific atic circuit element is integrally molded with the coil spring 55 darge00676. The coil spring has approximately VA 00677 on helical turns and terminates in a substantially planar to er00678 stretching closing ring 56. The closing ring is used for support on the Pupengehäuse 00679. 00680 00681 As will be seen, the closure element on a upper 00682, opening into the space 57 recess 58th The 00683 coil spring 55 has its one edge region 59 of the recess 58. The closure member 00684 with 00685 integrally molded helical spring 55 is molded from a soft poly 00686 εtyrolkunststof. 00687 00688 An outer diameter DA of the peripheral lip 17 (in the 00685 largest area) is larger in manufacturing chosen 00690 than an inside diameter DI of the outlet opening, in wel00691 cher the peripheral lip slides 17th As stated above 00692, the measure is, for example. Since being Lead with 7.1 mm and the measure DI 00693 with 7 mm. It is hereby a Schwergän- 00694 dependence of the closure element or the peripheral lip 17 in the exit port 00695, anyway reached through a first path section 00696. This supports a effektvol00697 le pressure point training ( "precompression"). 00698 All disclosed features are essential to the invention. In

00699 the disclosure of the application is hereby also

00700 disclosure content of the associated / accompanying priorities

vollinhalt- tätsunterlagen 00701 (copy of the prior application)

00702 lent involved, including for the purpose of incorporating features of these

00703 documents in claims of the present application

take 00,704th

Claims

00705 A nspr ü che
00706
00707 1. exhaust valve with a shutter member for Ver¬
00708 close an outlet of a druckbeaufschlagba¬
00709 ren chamber, in particular a pump chamber, which
00710 at a predetermined pressure, the outlet opening opens,
00711 characterized in that the closure element (8)
00712 linearly between a closed position and an Offen¬
00713 position is movable, and that the movement in the Offen¬
00714 position against the force of a spring coil or a
00715 bellows (9).
00716
00717 2. An exhaust valve according to the features of the preamble of
00718 claim 1 or in particular according thereto, characterized gekenn¬
00719 is characterized in that the closure element (8) linearly between
00720 a closed position and an open position beweg¬
00721 ​​bar and against the movement into the open position
00722 hergestell¬ the force of a plastic injection molding process in
carried 00723 th spring (51), said spring (51) starting
00724 from a central region (52) two oppositely ausge¬
00725 addresses, each spiral-shaped spring arms
00726 (53, 54).
00727
00728 3. vorherge¬ exhaust valve according to one or more of the
00729 claims or in particular according thereto, characterized
00730 in that the middle region (52) annularly
is formed 00,731th
00732
00,733th An exhaust valve according to the features of Oberbegri fes
00734 of claim 1 or in particular according thereto, characterized ge
00735 indicates that the closure element (8) linearly zwi¬
00736 rule a closed position and an open position
00737 movable and that the movement into the open position
00738 takes place against the force of a helical spring produced by plastics injection method 00739 (55), wherein the Wen00740 delfeder (55) having an upper end ring (56). 00741 00742 5. pump, in particular for an atomizing delivery of 00743 liquid media from a reservoir, with a 00744, an inlet valve and an outlet valve having 00745 pump chamber, characterized in that the Auslaßven00746 valve (7) in an outlet opening (6) of the Puirpenkammer 00747 (5) is linearly guided, having from a closed position against the force of a spring bellows 00748 (9) into an open position 00749 displaceable closure member. 3. Auslaß00750 valve according to the features of the preamble of An00751 entitlement 1 or in particular according thereto, characterized gekennzeich00752 net, that the closure element (8) linearly between a 00753 closed position and an open position movable and 00754 that the movement into the open position against the force of 00755 of the plastic injection molding process 00756 spring (55) is carried helical produced, wherein the coil spring (55) comprises a 00757 upper closure ring (56) on eist. 00758 00759 6. Pump according to claim 4 or in particular according thereto, 00760 characterized in that the outlet valve (7) in 00761 an outlet opening (6) of the pump chamber (5) linear 00762 run, from a closed position against the force of 00763 of the Kunstsoffεpritzverfahren spring prepared having 00764 (51) in an open position slidable Verschluß00765 element, wherein the spring (51) starting from a central region 00766 has two oppositely aligned, 00767 respectively spiral shaped spring arms. 00768 00769 7. Pump according to Claim 5 or in particular according thereto, 00770 characterized in that the outlet valve (7) linearly 00772 run produced a in 00771 an outlet opening (6) of the pump chamber (5), from a closed position against the force of 00773 of the plastic injection molding process spring 00774 (55) displaceable into an open position Verschlußele¬
having 00775 ment, said spring (55) as a helical spring
is formed 00,776th
00777
00778 8. vorherge¬ exhaust valve according to one or more of the
, 00779 ge claims or in particular according thereto characterized
00780, denotes that a pressure-spring force of the bellows
00781 (9) or the spring (51) or the spring (55) the Ver¬
00782-circuit element (8) in said closed position.
00783
00784 9. vorherge¬ exhaust valve according to one or more of the
00785 claims or in particular according thereto gekennzeich¬,
00786 net through a the closure element (8) above
00787 pin (19) which in a * penkarrrmer to the Puι (5)
00788 subsequent first portion (20) of the outlet opening
00789 (6).
00790
00791 10. An exhaust valve according to one or more of the vorhergeh-
, Gekenn¬ 00792 Eden claims or in particular characterized
00793 is characterized in that the pin (40) the volume of the first
00794 portion (38) of the outlet opening (39) almost vollstän¬
00795 dig fills.
00796
00797 11. An exhaust valve according to one or more of the vorherge¬
00798 claims or in particular according thereto, characterized ge ¬
00799, denotes that the pin (40) on the side of
00800 closure element (34) has a Ouerschnittsverdickung
00801 (41) which in the closed position the
00802 sealingly first portion (38) of the outlet opening (39)
00803 closes.
00804
00805 12. vorherge¬ exhaust valve according to one or more of the
00806 claims or insbeεondere according thereto, characterized ge
00807 indicates that the closure element (8) and the 00808 bellows (9) and optionally the pin (19) are in lumps formed of plastic ein00809. 00810 00811 13. An exhaust valve according to one or more of the vorherge00812 claims or in particular according thereto, characterized denotes ge00813 that the closure element (8) 00814 with a radially abkragenden outwardly peripheral lip (17) is plate-shaped 00815, which in the closed position in 00816 a abutting sealing engagement within a second Ab00817 section (21) of the outlet opening (6) connects to the 00818 for the open position, a third portion (22) of the 00819 outlet opening (6) of expanded cross section an00820 at which the edge lip (17) with radial clearance trapped 00,821th 00822 00823 14. discharge valve is formed 00827-shaped sealing collar (36) according to one or more of the vorherge00824 rising claims or in particular according thereto, characterized 00825, that the closure element (34) zylinderför- projecting tellerför00826 mig with the outer edge (35) which is in 00828 abuts the closed position in a circumferential sealing system 00829 within a second portion (37) of the 00830 outlet port (39). 00831 00832 15. An exhaust valve according to one or more of the vorherge00833 claims or in particular according thereto, characterized in 00834 that the second portion (37) comprises a 00835 radial opening (42) which in Offenstel00836 lung of the outlet valve, from the shutter member (34) released 00837, connects a Sprühkarial (43) with the pump chamber 00838 (32) via the outlet opening (39). 00839 00840 16. An exhaust valve according to one or more of the vorherge00841 budding. Claims or in particular according thereto, characterized overall 00842 indicates that the spray channel (43) immediately
00843 the radial opening (42) is connected.
00844
00845 17 vorherge¬ exhaust valve according to one or more of the
00846 claims or in particular according thereto, characterized
00847 in that the height of the cylindrical sealing
00848 collar (36) is greater than the axial length of the radial
00849 breakthrough (42).
00850
00851 18. An exhaust valve according to one or more of the vorherge¬
00852 claims or in particular according thereto, characterized
00853 in that the bellows (44) within a
00854 tube (45) is guided.
00855
00856 19 vorherge¬ exhaust valve according to one or more of the
00857 claims or in particular according thereto, characterized
00858 in that the tube (45) in extension of the
00859 ausge¬ second portion (37) of the outlet opening (39)
is 00860, and that the closure element (34) in its
00861 abuts open position in the tube (45) sealingly.
00862
00863 20 vorherge¬ exhaust valve according to one or more of the
00864 claims or in particular according thereto, characterized
00865 in that the tube (45) integral with the
00866 piston (30) is formed and that the tube (45),
00867 first and second sections (38, 39) of the outlet opening
00868 (39) passing through centrally by the pen (30)
00869 stepped bore is formed.
00870
00871 2. 1 Vorherge¬ exhaust valve according to one or more of the
00872 claims or in particular according thereto, characterized
00873 in that the third portion inwards
00874 projecting ribs (48), the inner surface
00875 (49) is approximately flush with an inner surface of the second
00876 portion (21) are formed.
00877 22. An exhaust valve according to one or more of the vorherge¬
00878 claims or in particular according thereto, characterized
00879 in that the sealing lip (17) has a einseiti¬
00880 gene, facing the spray channel (43) Offnungsausschnitt
having 00881 (50).
00882
00883 23. An exhaust valve according to one or more of the vorherge¬
00884 claims or in particular according thereto, characterized
00885 in that the Offnungsausschnitt (50) approximately at
00886 shows a cross section of the spray channel (43) is adapted.
00887
00888 24 A pump according to claim 3, in particular with an a
00889 or menrere of the preceding features having
00890 outlet valve or in particular according thereto, wherein handbetä¬
00891, the volume of the pump chamber Untitled for a pressure build-up
00892 is reduced, characterized in that the Einla߬
00893 valve (11) and the outlet valve (7) is gegenüberlie¬
are arranged 00894 quietly.
00895
00896 25. A pump according to one or more of the preceding
00897 Anεprucne or in particular according thereto, with interengaging
00898 plugged, gegenemader verse on the plug-in axis
00899 chieblichen piston and cylinder showing the Pumpenkam¬
mer enclose 00900, characterized in that on the
00901 Einstec axis (25) of the outlet opening (6) from the m
00902 Zylmαer (3) circumferentially piston (4) is arranged and
00903 that the closure element (8) in the outlet opening (6)
00904 puπ enκat-3meraußenseιtιg is used which via
opposite the 00905 on the outlet opening (6)
pump housing fixed 00906 page arranged bellows (9)
is truncated 00,907th
PCT/EP1997/002283 1995-10-31 1997-05-05 Outlet valve, especially for a hand pump, and the pump WO1998011995A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1996138602 DE19638602A1 (en) 1995-10-31 1996-09-20 Discharge valve for hand-operated pump
DE19638602.0 1996-09-20

Publications (1)

Publication Number Publication Date
WO1998011995A1 true true WO1998011995A1 (en) 1998-03-26

Family

ID=7806362

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/002283 WO1998011995A1 (en) 1995-10-31 1997-05-05 Outlet valve, especially for a hand pump, and the pump

Country Status (1)

Country Link
WO (1) WO1998011995A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046428A3 (en) * 1999-04-23 2002-10-30 Owens-Illinois Closure Inc., Pump dispenser having one-piece plastic spring and gasket
WO2004099029A2 (en) * 2003-05-05 2004-11-18 The Procter & Gamble Company Sprayer actuator, sprayer, and method of making the same
EP2743503A1 (en) * 2011-08-12 2014-06-18 Canyon Corporation Accumulated-pressure trigger sprayer and pressure accumulation valve therefor
WO2015162501A1 (en) 2014-04-23 2015-10-29 Guala Dispensing S.P.A. Dispensing head with pre-compression valve for a trigger dispenser device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2013774A (en) * 1978-02-01 1979-08-15 Canyon Corp Manually operated sprayer
FR2524348A1 (en) * 1982-03-30 1983-10-07 Ramis Michel Vaporising pump made with plastics parts - has spray orifice which closes automatically after vapourisation under plastics spring action
WO1986000830A1 (en) * 1984-07-27 1986-02-13 Aero Pump GmbH, Zerstäuberpumpen Device for spraying a liquid held in a container
GB2179406A (en) * 1985-07-24 1987-03-04 Monturas & Fornituras Sa Dispensing pump for a fluid contained in a container
EP0707894A1 (en) * 1994-10-19 1996-04-24 S O F A B Société Anonyme Miniature precompression pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2013774A (en) * 1978-02-01 1979-08-15 Canyon Corp Manually operated sprayer
FR2524348A1 (en) * 1982-03-30 1983-10-07 Ramis Michel Vaporising pump made with plastics parts - has spray orifice which closes automatically after vapourisation under plastics spring action
WO1986000830A1 (en) * 1984-07-27 1986-02-13 Aero Pump GmbH, Zerstäuberpumpen Device for spraying a liquid held in a container
GB2179406A (en) * 1985-07-24 1987-03-04 Monturas & Fornituras Sa Dispensing pump for a fluid contained in a container
EP0707894A1 (en) * 1994-10-19 1996-04-24 S O F A B Société Anonyme Miniature precompression pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046428A3 (en) * 1999-04-23 2002-10-30 Owens-Illinois Closure Inc., Pump dispenser having one-piece plastic spring and gasket
WO2004099029A2 (en) * 2003-05-05 2004-11-18 The Procter & Gamble Company Sprayer actuator, sprayer, and method of making the same
WO2004099029A3 (en) * 2003-05-05 2005-04-14 Christopher Eugene Bates Sprayer actuator, sprayer, and method of making the same
KR100775776B1 (en) * 2003-05-05 2007-11-12 더 프록터 앤드 갬블 캄파니 An aerosol ergonomic sprayer
EP2743503A1 (en) * 2011-08-12 2014-06-18 Canyon Corporation Accumulated-pressure trigger sprayer and pressure accumulation valve therefor
EP2743503A4 (en) * 2011-08-12 2015-04-15 Canyon Corp Accumulated-pressure trigger sprayer and pressure accumulation valve therefor
WO2015162501A1 (en) 2014-04-23 2015-10-29 Guala Dispensing S.P.A. Dispensing head with pre-compression valve for a trigger dispenser device
US9919325B2 (en) 2014-04-23 2018-03-20 Guala Dispensing S.P.A. Dispensing head with pre-compression valve for a trigger dispenser device

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