DE2306085A1 - REFILLABLE SPRAY DEVICE - Google Patents

Description

UT. Hans-Heinrich Willrath d- 62 Wiesbaden February 6, 1973

Dr. Dieter Weber Diploma Phys. Klaus Seiffert

PATENT LAWYERS

Thiokol Chemical Corporation. Bristol, Pennsylvania, USA

REFILLABLE SPRAY DEVICE

Priority from Ik, February 72 in USA, Serial No. 226.204

The present invention relates to a hand spray device, Their unique arrangement of features and parts enables atomized spraying, which is possible with the sprayers by aerosol type, which are enjoying an increasingly widespread uptake in the marketplace. Aerosol spray devices however, have the disadvantage that they must be filled before ge, usually with a propellant such as ζ · Β, freon or the like, and at relatively high pressures · Furthermore, such devices often retain a high residual pressure even when in the so-called "Empty" are, from which a significant A moment of danger arises when they are put out of use or thrown away

309835/0432

Postal check: Frankfurt / Main 6763 Bank: Dresdner Bank AG, Wiesbaden, account no. 276807

The atomizing device, which is now enjoying increasing popularity, is a manually operated sprayer according to US Pat. No. 3,471,065. As a result, one part of the tel® © is guided into the other like a copier, and works like a Pump® by compressing a spring and simultaneously measuring a liquid into a chamber, pushing a piston. Qa the piston is pressed against the liquid _? SaM = i © ß® ± n valve of the liquid in the chamber _{inlet 9} tarad di © liquid is held in it until it. von © iia © r

While jedocii the © big © Sps'ühvosTich'feraag ¥ ort © iJ, ® lia.-fe about the aerosol boasben UoUgXo ₀ 1st si © practically © »

affects uatgrwoarfea ^ as s ± © dae Dsraekkansraervoluarasn- _? since they

des Tsleske- ^ kerjsers ISmgas ¹ a ^ isgeflilart be κεα® ₉ eat-

or submission ₀ taad soait is the

Ss igt

© ine lastE ^ d® HaM activity _s wsa the fluidity ma.

daaa? © h Sastessi or condensing

and while these enjoy relatively continued use, they have the disadvantage of low spray rate control, low atomization and require a lot of physical strength from the user's point of view to operate

The invention overcomes the aforementioned disadvantages of the known devices, as described below will.

The invention relates to improvements in liquid spray devices and particularly relates to improvements in relatively small handheld devices, the Desirably produce sprays as fine as those produced by aerosol spray bombs and button devices, or finer

Bs is, therefore, to provide ₉ an effective and simple in operation and construction, refillable liquid-sigkeitssprühvordphtng object of the invention which is low in cost, and the average user is available with a refillable or disposable, d, h ₀ non-refillable, hand-operated sprayer for spraying many dirty current standard liquids to form a mist such as hair spray, perfume, toilet water, deodorants, insecticides, as well as for use in other fields, such as Z ₉ as in medicine, to provide a safe and reliable apparatus to provide, for the precisely controlled , sterile distribution of antibiotics, medical alcohol

309835/0432 " ^h "

and other medicines in hospital rooms and the like.

It is beneficial to have a refillable liquid spray device that can be easily held in the hand and when loaded in any position or posture by finger actuation of a button in the manner of a Push button operated kasizu

It is also advantageous that the spray device is complete What is certain is that no outside force iron and liquid are required distribute under high pressure in the form of a fine mist can, but the stored in the device Amount of liquid is only exposed to atmospheric pressure, thereby reducing the risk of explosion of the. hericlSmmlieheB. Aerosol spray

fixtures trermie the "sand _β "'-' -

gweeksaäßig and advantageous is @s © rfisudungs ^ sraiB -§f © it © rhin that the © to © m h®B & hx '± ©' bmn.® VoE-riohtraiag no g © saved »Bruekga® © des» other fs * siäd © md @ s propellant requires ^ thus avoiding the problems of the Venms'eiffligamg to -verteilenden liquid product s © wi © di © so, erssaminenhlrageiiden prob- learn using v @ n previously und'tinter pressure gesetsten devices avoided _e '-

Further advantages ₉ features and application elements of the present invention emerge from the following description in connection with the drawings Ea show

309 83 5/0432 - 5 -

1 shows a central longitudinal section of a device according to the invention showing how it is loaded with liquid, but not yet charged,

FIG. 2 is a view similar to FIG. 1, partly in section, showing the device in an intermediate state of loading or pressurization ₈

Fig. 3 is similar to that in Figs. 1 and 2, in part in section, showing fully loaded or pressurized, ready for the Operation,

Figure h is an isometric, exploded view of cap and piston parts of the invention, partially cut away to show certain guides or keyways and tongues used to ensure proper placement of those parts;

5 is an enlarged sectional view of a spray nozzle, push button and control valve actuated thereby and a typical safety lever ^{shown in the n} off position ⁿ , and FIG

6 shows an enlarged section of part of FIG.

in particular the middle right upper part showing the pressure chamber inlet shut-off valve and of the air inlet shut-off valve, together with a part

309835 / Ö432 " ⁶ "

a piston and a., J dispatch or pressure chamber.

Figures 1 to 3, a preferred AusflihrrasfjsiTorm tend Plüssigkeits a spreading device 10 of the invention, the ISTJ preferably carried out so that they are easily held in. The hand ₉ in ka3sn © ore ätail'icher way ± w & usual, present everywhere today Aerosol -Spruhvorrich— tiHigeiio In general, the Sprühwrichttamg 10 has a separable cylindrical container 11 ®u%? Stores a quantity of sprayed-out liquid 12 atxf and a cap or a spray housing 13 “welclaes on it” ₉ where the container 11 wa, over the Spg ^s ti3ig © Mtage 13 10 SIMD · ¥ ie iaan ersieht on deutlich®t © 3a from Figo 1 _8, the Ge-Mtuse 13 eisa © ssylindrisoli. © Auametemssag lh at ₉ _ © di top mach .isnt @ n runs _s zwr Aufnahm® ®inea ^ idas © ines Y®2? tension body © of claims © eMcös? p®rs 15 i ». der Siier darg © st © li-feen Fci ^ ra a spiral spring ₉ söwi © eiaisrAuslaSleittang .16 ₉ d ± e with · »· ■ fcig im der Ausnetaremg? ik arranged 'Man © rkeimi; - X © icht _$ that other forms of YorspannkSrpersE. for the 15th best will be k5ms. © n ₀ Ss köiMi © n '®o flacJie aacli kind of a B®llev ± ll © ° üat @ rl®gf ^> © d @ r © mtw © d @ r al® m © s Element © der sio, © ± a © s · lamgeai Vorspasiakett © ^ j® sia © lid @ m ₉ wag äor Faetaaaasi für.ajss ten lallt® Ifeiteriiim braiaslit der AnBpreeMcSs'sier 15 made of metal sä b © st © Iie2% da a lot of © Kssaatstoffe Meate siad ₈ di © © in. © relative h. @ L ® Biclit® iasid. © '± S3ie laer-

liabesig so that this aucii as

Called polyethylene and polypropylene

The outlet 16 ends in a central tube 38 »that in one
Piston 9 is formed _o The tube 38 is provided on its upper side (see Fig. 1) with a suitable liquid seal 39, in this embodiment an O-ring,
although numerous other suitable seals can be used _o Seal 39 is placed in tube 38
held back by a receiving body ^ O and creates
a seal against fluid leakage between tube 38
and the lower end of the outlet 16

At the top of the outlet 16 is an outlet valve 17 "and reference is now made to FIG. 5, in FIG
which the parts now described in better detail
are shown · The outlet valve 17 has a plunger or
a shaft 20 and a partially pretensioned spring 22, which is arranged in a space 23 in order to press the shaft 20 against a shoulder 6 at the entrance to the space 23 * The upper part of the shaft 20 ends sealingly in a push button 2h
with an outlet nozzle 19 The shaft 20 is formed with flow passages which are in flow connection at their upper end with an opening 8 and at their lower end with nozzles 19 A valve seal 21 next to the opening 8 seals against the flow of liquid until the Button 2h is pressed. The seal 21 is shown in the form of an O-ring; however, other seals also serve this purpose.

309836/0432

It is thus easy to see that valve 17 is a normally closed device. As mentioned above, when the pushbutton Zk is pressed down, the shaft 20 moves downwards into a second space 25 and exposes the opening 8.

A safety lever 26 is attached to the shaft 20 between the push button Zk and the valve 17. The lever 26 has two positions, in one position a plunger 27 engages with the underside of the pushbutton Zk and prevents the downward movement of the pushbutton when it is pressed Button Zk ₉ and normal movement of the push button Zk is enabled. The lever 26 thus provides the "on-off" option in the spray device JO in a simple but economical manner.

We will now refer back to Pig. 1 »Piston 9 has a central tube 38, which is formed at its upper end with grooves for adaptation to seal 39 and seal retainer kO . At the bottom; of the piston 9 is a sterile end 28, on the outer circumference of which a sealing groove for receiving a stamp end seal 18 is formed _9, one being shown as a preferred shape in the form of an O-ring, although other sealing devices also serve this purpose.

30 9 Ö3B / 0Λ 3 2

The container 11, the second of the two main sub-assemblies, has a space or container 31 for holding a quantity of liquid 12. An inlet conduit 32 is centrally located therein and extends down to a point immediately above the bottom wall or lid 7 of the container 11 _O. In the illustrated embodiment, the ¥ and 7 in a threaded fit k2 a removable filler plug 4i for filling the Take up reservoirs or container 31 with liquid 12 · The scope of the invention naturally also includes a non-refillable, prefilled container 11 which has been compressed by the manufacturer · The bottom wall or the cover 7 can be pressed open in order to form a good seal; However, other sealing methods such »B _e ultrasonic welding or heat sealing can be easily used to the cover 7 to close permanent ^, and such methods are within the invention framework.

The central inlet line 32 ends in an inlet shut-off valve h3 at the inlet of a liquid pressure chamber 33. Valve 43 is arranged in such a way that a flow into the chamber 33 is thereby enabled, but a flow in the opposite direction is prevented. A second valve, an air inlet shut-off valve kk, is arranged in the upper side of the container 11 and operates so that air can flow into the space 31 while a flow of liquid out is prevented. The valves hj and kh can be seen more precisely from FIG. 6, which shows an enlargement of part of FIG.

309835/0432

- 10 -

The container 11 is formed with a beveled rim 35 which engages a peripheral edge or ledge or collar in the cap or spray housing 13 and has a pair of cams or crouching surfaces 30 in cam recesses 34 "The cams 30 operationally touch a pair of cam followers 29 and serve as tools in the operation of the ET end _8, as will be explained in more detail below.

In .Fig * 4 a _bent apart representation is shown, where the cap 13 and the piston 9 show the position of these two bodies in the assembled state . deviated with hj -versehen ₀ with corresponding At ^ nehmpngen springs 48 k-6 on the peripheral edge 45 of the "-Kolbc-ns 9 are in engagement treteno Deutliclxer visible in Figo k - Umf angsrander ^ edges" or cuts, - 36 in the Bottom of the springs h-93 which come into engagement with "the beveled or grooved E _a ad 35 on the" container 11 ^ as will be described below

Piston 9 is brought together with cap 13, it is sliding " Bar in it via springs 49 "and keyways 47 open, f recess 48 and wedge 46 movable

In describing the spray device 10 and its individual Parts it is clear where the technical progress in distributing and spraying lies, namely the special and peculiar combination of elements and parts that are economical can be made as all parts are made of

'· ■■'. - 11 -

309835/0432

Can be plastic. In fact, one is special preferred plastic material polypropylene. The spray device 10 can easily be assembled by inexperienced persons and the various parts of the device can also be arranged in sub-assemblies, which are then assembled to produce the complete unit. For example, form the piston 9 »fit together with the seals 18 and 39,

Recording-

and dex · container 40 a sub-assembly · the inlet shut-off valve k3 and air inlet shut-off valve hk ₉ installed in suitable seats in the container 10, the bottom cover 7 with the filler plug 41 in the fitting k2 thereon form another sub-assembly. The previously assembled piston 9 can then be arranged in the container 11 by inserting its cylindrical punch end 28 into the chamber 33. The response body 15 can then be arranged on the piston 9 above the central tube 38 o

The cap 13 with the seal 21 in the recess 23 » Valve 17, spring 22, mounted on the seal 21, Shank 20 in recess 23 in spring 22 and seal 21 after pressing through the shoulder 6 in the opening on the top of the cap 13 form another Subassembly. The plunger 20 compresses the spring 22 somewhat and assumes the position shown in FIG the opening 8 is next to the seal 21 «The

- 12 -

309835/0432

Above the lower end of the shaft 20 attached safety lever 26, push button 24 with the nozzle 19, which presses over the upper end of the shaft 20 above the lever 26 and ensures that plug 2? is in a suitable position to allow a return movement of the lever 26 and a movement forwards around the shaft 20 into its position ( ¹ in "or" out " ₉ as desired, complete the sub-assembly of the cap 13»

The sub-assembly of the cap 13 is now ready to be connected to the sub-assembly of the container 11 protrude from the recess 37 of the response body around the tube and firmly pressed down, the response body 15 is compressed until the grooves or incisions 36 i * ¹ den. Snap space over the inclined edge 35 on the container 11 · The spray device is now completely assembled and can be filled with liquid, which can then be filled in and sprayed as desired.

During operation of the object according to the invention, the space 31 in the container 11 with the to be sprayed or closed spreading liquid filled, and the spray device 10 is loaded. For loading, the spray device 10 is gripped with the left hand on the cap 13 and

309835 / 0A32 - 13 -

23Ü6Ü85

held * Container 11 is then gripped with the right hand and rotated to the right (the arrows in FIGS is heard. The rotation of the container causes the cams 30 rotate ^ which can in turn increase the piston 9 nadi top of the cap 13 _s therein to wedges 46 and keyways 48 of the rim 55 slides ii ^ corresponding splines 47 and splines 49, and the right to the actuating body 15 compresses When piston 9 begins to rise, plunger end 38 leaves the bottom of chamber 33 and creates a small vacuum. Valves 4, 3 and 44 open, allowing liquid 12 to flow into chamber 33 and the river vozi liutt into the container 31 3 ¥ it the F £ g _s 2 sed.g-'fc _s Ι3®; ΪΓ1. £ ΗΪ © 1; si.oEi KoUsgzi 9 s ^ s Bsgi'in söisies Auf ^ ärtsiiTibsS | miä;? 2üsrigi: ^ it 12 iTüJLit the partially emptied Eaimaer 33 «Ι / βκη the mash d®s Eeliäl-fee ^ B at this point on Äortj remains oil a-elion · £»: ■ the Eas ^ er ¹ 33 is "

body / .: In ₅ tsiid diesel ¹¹ Brack lets the ßJbäpez ^ srr &Ti'bz.l's 43 tiüci 44 sch. "L ± s £ - ^ i: ·. imu the FJLiissAgiceit £: * Ε3θίΰίΰ £ οΐΐο iveiKi cli, e JirsinHig ds "container t I "; ieder · atiifg-SiaoiiJiiieEi is> eri-calibrated the piston 9 äie £ 21 Fi ^? ■ 3 posed Lfa.ga _D iKid csi® spray device- : Lst ^ ei; i% fc voil bescliickto S & ist -yerstäiiülicLj that the Sprüiryörricfe'tiiSig 10 asxf every intermediate position between the _{bearings i} der- Figo Ί υχιύ 3 are filled up krauis The one

3 0 9835/0432

um.interscii ± ed regarding the spraying, darixx ₈ ordered that the activity of the cam follower 29 is somewhat different in the event of an incident ₉ vi ± e in the following with respect to the spraying activity , explains "Wiyd. Unter der Anä2ah »E ₀ that the spray device 10 is now" fully · = constantly loaded XSt ₀ as shown in Fig. 3 g® shows ₈ the spraying activity can now begin _o you usually achieved "through the - At & f == bring the index finger". On the push button 24 and the application of a wait- and- see pressure against this eiio This activity leaves the stamp 20; downwards, in "occupy the recess 25 shown in ^{FIG. 5 and the:} opening 8 free Xegeno liquid 12 from the chamber 33o the central pipe 38 bath of the carrion duct 16 then flows 12m the end of the shaft 22 12nd occurs in-dis StrömuEigsdiirchgänge Daxin by -. the S Öffntang a xand through the nozzle 19 from the nozzle 19 ο the Fließdnrchgämge köHE2.en course be dimensioned -SO ₀ it comprises eixiesi ert-jisascSiib Feinest give SpSTUhsiebeX _o / _s is also foeabsichtigt -wzä aar Forderung- recommend the Fliissigkeitszerstätsbijng · su _ö - that "the various FlSssigkeitsdnrchgaags = oberfläciien '± n of the base; J? Bind iss the shank 20 ireniiadiangsar · = t introduction devices have ₀ the daria or formed on it. T siaäo Solciie aiciit shown devices cause a break-up of the liquid _a which led to finer spraying and feißesreji levering

-Of course- the spray device- "10 can be loaded by ■ turning the cap 13 ₈ while" the- container * -.

■ '309835/0432' '-

10 is held stationary since the upward movement of the piston 9 is the same.

When the liquid 12 is discharged from the nozzle 19, the plunger is pushed downwards into the canals 33 by the response body 15, the liquid being pushed upwards through the tube 38 void into the outlet conduit 16. The movement of the piston 9 is downwards along a straight path on the surface 29a of the cam follower 29 in sliding contact with the corresponding vertical surface 30a of the cam 30. When the spray device 10 has been fully discharged, it appears with its various working parts as shown in Fig. 1, the piston 9 and the punch end 28 occupy the chamber 33, the cam follower 29 resting on the cam 30 in the recess 3k on the floor. Of course, the level of the liquid 12 in the container 31 is somewhat lower j when the corresponding amount has been sprayed.

As mentioned above, the spray device 10 can be applied to any The intermediate layer can be loaded by simply stopping the rotation of the container 11. However, if you have liquid with the piston 9 in any position shortly before the complete When the charge is sprayed, the piston 9 moves the cam 30 down on the follower 29 until it returns to the position shown in FIG. 1 assumes the position shown.

- 16 -

309835 / 0A32

It is therefore unique and improved, made by hand operated spray device provided, which as a result of new features and the useful loading mechanism

the state of the art in terms of spraying is considerable enriched. It is therefore believed that those skilled in the art based on the description above, the operating mode and understands the arrangement of the device, with changes in mode of operation, manufacture and arrangement in the Within the scope of the invention are possible *

309835/0432

Claims (10)

Claims 1 »y liquid spray device, characterized by a rotatable container (11.) with a space (31) for receiving a quantity of liquid (12)» with a liquid pressure chamber (33) and an opening for filling the space (31) with the liquid, an inlet line (32) in the container (11) for guiding the liquid from the space (31) to the chamber (33) »a first fluid control device (43) in the container (11) for the flow of the liquid into the chamber ( 33) into it, a second fluid control device (44) in the container for the flow of air in the. Space (31) into it, a spray cap (13) »which is rotatably connected to the container (11), a movable piston (9) in the cap (13)» a loading device (30) in the container for operative contact with a part of the piston for moving the same in the cap, a spray nozzle (19) in the cap (13) for dispensing liquid from the container (11), an outlet line (16) for guiding the liquid from the chamber (33) to the spray nozzle (19 ) »A discharge device in the cap for controlling the outflow of the liquid from the chamber through the nozzle, an actuating device (15) in the spray device (1O), which is arranged in the cap (13) and located in the piston (9) in the Extending container into, and a spring means (49) on the - 18 - 309835/0432 Piston (9) and in the cap (13) for slidable movement of the piston in the cap " 2. Spray device according to claim 1, characterized in that that the actuating device is a pretensioning body (? 5) that touches the piston (9) and removes it from the cap (Ϊ3) moved 3. Spray device according to claim 1 _S, characterized by a device (26) under the spray nozzle (19) for switching off the nozzle in one of two positions and switching it on in the other position. h » Spray device according to claim I _9, characterized in that the loading device is a Nooke (30)» 5 · Spray device according to claim 1, characterized in that that the first fluid control device is a check valve (43) is. 6. Spray device according to claim 1, characterized in that the second Fließmittelsteuereinxichtung is a shut-off valve (kk) . 7 · Spray device according to claim 2, characterized in that that the Vorspannkörpar is a spring (15). - 19 - 309835/0432 8. Spray device according to claim 7, characterized in that « that the spring is a spiral spring 9 · Spray device according to claim 7, characterized in that that the spring is a flat spring. 10. Spray device according to one or more of the preceding Claims characterized in that the cam means (30) in the container (11) are in operative contact with part of the piston (9) to move the Piston in the cap (13) as a function of the rotation of the container is that the spray nozzle (19) is provided in the cap for dispensing the liquid (12) from the container ista that a dispensing valve in the outlet line to Control of the discharge of the liquid from the chamber through the nozzle is provided that a line (38) in the piston (9) in connection with the outlet line (16) and the pressure chamber (33) is for guiding the liquid from the chamber into the outlet line and to the spray nozzle, and that a response body (15) is provided in the cap (13) which contacts the piston (9) under bias, such that the piston is pushed away from the cap and into the pressure chamber (33) is pushed in, causing liquid therein to be displaced by the piston in the chamber and to flow is pushed into the conduit, namely into the outlet conduit and the spray nozzle to the outlet 309835/0432 Empty soap