Modular brush and ball head bottle

The brush bottle's innovative feed system with a compression spring and snap ring mechanism addresses the challenge of handling diverse liquids, ensuring smooth flow and preventing drying, enhancing usability and efficiency.

DE102023005222A1Pending Publication Date: 2025-06-18AHRENS JANET
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Patent Information

Application Number
DE102023005222
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-18
Publication Date
2025-06-18

AI Technical Summary

Technical Problem

Existing brush bottles are inadequate for handling both thin and viscous liquids, such as inks, cleaners, and adhesives, and often fail to prevent the brush from drying out when not in use.

Method used

A brush bottle with a specialized feed system featuring a compression spring and snap ring mechanism that automatically adjusts to allow smooth flow of thin liquids and manual adjustment for viscous ones, combined with a sealing mechanism to prevent drying when capped.

Benefits of technology

Enables efficient application of both thin and viscous liquids without clogging, while keeping the brush moist for extended periods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a modular brush and ball-head bottle for viscous paints, watercolors, fabric paints, adhesives, oil, cleaners, rust converters, and other liquids, with a brush made of hair, with a tip with a cushioned ball, or with felt, fibers, or foam. In an automatic version (A), in an adapter (1) that is screwed onto the container (40), an internal thread (2) that is short relative to the screw version (B) is formed exclusively in the area of ​​the outer side (3) of the adapter (1). Between the short internal thread (2) in the adapter (1) and its integrally formed valve cone (4) is a normal, smooth area (9) without an internal thread (2), in which the likewise short external thread (22) of the brush sleeve (20) can be moved back and forth.
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Description

The invention relates to a modular paintbrush and ball head bottle for viscous paints, aquarel paints, fabric paints, adhesive, oil, cleaner, rust converter and other liquids, with a paintbrush of hair, with a sprung ball tip or with a felt, with fibers or foam.The object of this invention is to provide a brush bottle with control which, like a filling brush, is suitable not only for inks but especially for viscous paints, oils, soldering water, rust converters, brumming agents and adhesives. It should have a special supply into the brush and also be suitable for thin aquarel paints and for low-viscosity cleaners for electronics and for furniture, leather and shoe care. This is also intended to include at least one version with an inner valve.The problem explained is solved according to claim 1 and the dependent claims:For this purpose, in an automatic version A, an internal thread which is short relative to screw version B is formed in an adapter which is screwed onto the container exclusively in the region of the outer side of the adapter. Between the short internal thread in the adapter and its valve cone formed thereon, a normal smooth region without internal thread is arranged, in which a likewise short external thread of the brush sleeve can be moved back and forth. The short threads serve to mount the brush sleeve easily and definedly via their snap connections into the adapter.Between a stop on the central bore of the adapter and a stop on the short external thread on the brush sleeve, a compression spring is mounted which is particularly important for the automatic function of these brush bottles. The compression spring ensures that the brush sleeve springs out almost automatically outside the threads in its freely movable region as far as the first stage after the cap has been unscrewed. As a result, the valve is opened in the first stage and relatively low viscosity agents, cleaners, fires and the like can already flow properly into the brush.Of course, there is a second stage of opening the inner valve. The following technique is provided for this:On the brush sleeve between its valve cone and the stop of the compression spring, an inner snap ring was formed, which in the assembled state is snapped behind an outer snap ring in the central bore in the adapter.Between the inner snap ring on the brush sleeve and its valve cone, either a raised fine sealing ring is formed or a separate O-ring is mounted, which can be moved back and forth in the bore in the adapter under prestress and in a sealing manner. After the brush sleeve has automatically been springed out until the first stop in the adapter, the brush sleeve can now be pulled out of the adapter a little with moderate force until it reaches an outer stop ring. This opens the valve even further and can thus convey viscous paints and adhesives into the brush.In order to stop the drying of a paint- or adhesive-filled brush for a few weeks, the following arrangement has been created: An inner sealing collar was formed in a screw cap with an internal thread, which sealing collar, in the screwed-in state, is sealingly screwed against a front sealing collar on the outer end of the brush sleeve and, in the process, has compressed the compression spring in the automatic version A.In the interior of the screwed-on cap, a hermetically sealed space is thus formed above the brush, in which space the brush does not dry for weeks.At least one transverse opening is formed through the valve cone, which opening, when the brush sleeve is sprung out, produces a connection via the valve bore from the interior of the bottle into the application element, for example centrally into the brush bore and further into the brush, to a ball tip or to a paint tip made of felt, fibers or foam.An adapter has been screwed or plugged onto an external thread or a bumper ring of the neck of a container, said adapter comprising the collar and the brush sleeve.At the outer end of the axially movable brush sleeve, a thicker grip ring is formed with a shoulder which is pressed inward in certain cases by the screwed-on cap.A valve cone was formed on the inside of this brush sleeve, which in the closed state is sealingly screwed against the conical valve bore, wherein it has closed one or two axial openings in the valve cone.A cap sealing the respective application element is screwed or plugged onto the outer side of the adapter, which cap in the closed state is pressed with its inner stop against a shoulder on the grip ring and which in the process has sprung the brush sleeve into the adapter, wherein the valve has been closed.The following setting of a second stage with more flow is provided: This is achieved after a further pull on the grip sleeve in an even further sprung state "maximum flow", where the snap ring on the brush sleeve is pulled against the outer snap ring in the central bore of the adapter and abuts there. Only with very strong tension on the brush sleeve can they be subsequently turned out and pulled. This may be required if for environmental reasons we only wish to change the lost brush or if we wish to install a different type of applicator, for example a different brush size or ball head.A simpler but not automatic openable version of these brush bottles is screw version B without compression spring, wherein the internal thread in the adapter is formed in the entire central bore. The brush sleeve is screwed fully on or off practically manually and the valve is thus opened continuously. So that the brush head does not break down when the cap is screwed in, if the brush sleeve is not screwed in completely by accident, the internal thread in the adapter is designed to be very flat and strongly rounded. As a result, the flanks of the thread on the rotating sleeve can be snapped into the adapter with force when the cap is turned closed and finally the valve can also be closed in this base version B with internal and external thread, after a leftward rotation of the brush sleeve the valve cone is slightly raised and liquid flows from the bottle via the open valve bore and via the transverse openings in the valve cone into the application element, for example into the brush bore.Various sizes and shapes of a round or flat brush are generally glued or pressed into a brush sleeve with an internally uniform diameter directly or by means of a mounting sleeve, wherein the brush sleeve itself is in turn movably fastened in the large receiving bore of the adapter.In addition to the most important applicator - the brush tip, we provide some other applicators which we describe below.After the work is completed with this brush head, a cap sealing the respective application element is screwed or plugged onto the outside of the adapter, which cap in the closed state is pressed with its inner stop against a shoulder on the grip ring and the latter in version A thereby is sprung into the adapter or in version latches or screws in and the valve has thereafter closed. This arrangement is called automatic cap mechanism.In spite of the automatic mechanism, it is sometimes desirable to rotate or pull the grip sleeve at this location in order to release dried adhesive or paints. For this purpose, pull grooves or rotation grooves are then provided on the brush sleeve. Or, as explained below, one wishes to trigger or more finely regulate a second stage of the color flow.A further possibility of opening the cone valve is provided as follows:In the inner contour of the cap, some axial webs can be formed which engage directly or after lateral pressure on the cap in the grooves of the grip ring on the brush sleeve and carry the same with it in a rotating manner. This can also be effected in a latching manner in the sense of a slip clutch.In a greatly simplified embodiment of this brush bottle, the brush sleeve is to be molded directly into the adapter in one piece. This saves individual parts, but does not require automatic capping or reliable valve technology. This single brush bottle is not transportable and can be stored practically only standing, i.e. in a workshop on the workbench.There are at least three to four embodiments of the application elements:For this purpose, in the first embodiment, a collar with adhesive is applied as a brush bottle to the underside of a brush, which collar has a bore in its axial center, which bore extends as far as into the brush fibers. In a second embodiment we have provided a mallet to the tip of which a ball and underneath a compression spring are attached. The compression spring is supported on the receiving bore of the sealing cone.Instead of a brush, in a third embodiment, a foamed tip or a fiber tip can also be used. The application tip or brush is glued at its collar into the front opening of an adapter either with an adhesive ring or pressed in there with a mounting sleeve.A fourth embodiment provides a support made of foam material. The replacement air for the painted paint can penetrate through the brush fibers or through air grooves in the foam material or through one or more axial grooves on the pin from the outside into the interior of the bottle. Otherwise, the reduced pressure in the bottle would be so high that the ink flow would be completely interrupted.Further embodiments of the present invention can be seen from FIGS. 1 to 21 and the descriptions thereof. Shown for this are: FIGS. 1 to 4 are four views of a brush pencil with a brush-mounted painthead with a brush, an adapter on a bottle and the screwed-on cap for this purpose in views and in section, FIGS. 5 to 9 are a view and two sections of a brush pencil with a cap with a rotatable brush sleeve with a compression spring, FIGS. 10 to 13 are a view and two sections of a automatic cap brush pencil with a flat brush, FIGS. 14 to 17 are a view and two sections of a ball-headed stud with cap-auto-caps of the B type, FIGS. 18 to 21 are a view and two sections of a pin with a tip of round foam with a cap automatic mechanism with compression spring,FIGS. 1 to 4 show four views of an open brush bottle 30 with different application elements 60, for example in FIG. 1 with a brush 61, brush sleeve 20, an adapter 1 on a bottle 40 and the cap 50 screwed thereto in views. In Fig. 2, we have drawn a flat brush 62. Of particular interest is the ball head 63 with a spring 65 spring loaded ball 64 and the applicator tube may be plastic for adhesive, and for a metal marking tool for rolling mills and steel trade we will employ stainless steel.In FIG. 4, the application element 60 is made of foam material or even of felt 66.The rotating ring 34 of the brush sleeve 10, which has been drawn here in the compressed state, is prominent.FIGS. 5 to 9 show the automatic version A with an adapter 1 which is screwed onto the container 40. Only in the area of the outer side 3 of the adapter 1 a short internal thread 2 relative to screw version B is formed. Between the short internal thread 2 in the adapter 1 and its valve cone 4 formed thereon, a normal smooth region 9 without internal thread 2 is arranged, in which a likewise short external thread 22 of the brush sleeve 20 can be moved back and forth. The short threads serve to mount the brush sleeve easily and in a defined manner via their snap connections into the adapter and on the other hand to prevent unintentional pulling out.Between a stop 8 on the central bore 6 of the adapter 1 and a stop 28 on the short external thread 22 on the brush sleeve 20, a compression spring 33 is mounted which is particularly important for the automatic function of these brush bottles. The compression spring 33 ensures that the brush sleeve springs out outside the threads in its freely movable region 9 virtually automatically and comfortably as far as the first stage after unscrewing of the cap 50. The user therefore has nothing to do for activation, i.e. to screw off the cap. As a result, the valve is opened in the first stage and relatively low viscosity agents, cleaners, fires and the like can already flow properly into the brush.Of course, there is a second stage of opening the inner valve. The following technique is provided for this:Formed on the brush sleeve 20 between its valve cone 24 and the stop 28 of the compression spring 33 was an inner snap ring 26 which, in the mounted state, is snapped behind an outer snap ring 10 in the central bore 6 in the adapter 1.Between the inner snap ring 26 on the brush sleeve 20 and its valve cone 24, either a raised fine sealing ring 27 is formed on or a separate O-ring 27', which can be moved back and forth in each case under radial prestress and sealingly in the bore 7 in the adapter 1. After the brush sleeve 20 has automatically been deflected up to the first stop 10 in the adapter 1, the brush sleeve 20 can now be pulled out of the adapter 1 a distance with moderate force up to an adjacent, outer stop ring 11 As a result, the valve 4, 24 is opened even further and thus higher-viscosity paints and adhesives can be conveyed into the brush 61.In order to stop paint or adhesive-filled paint brush 61 from drying for a few weeks, the following arrangement has been devised: An inner sealing collar 59 is formed in a screw cap 50 with an internal thread 51, which sealing collar, in the screwed-in state, is sealingly screwed against a front, likewise conical sealing collar 29 at the outer end of the brush sleeve 20 and in the process has compressed the compression spring 33 in the automatic version A.In the interior of the screwed-on cap 50, a hermetically sealed space is thus formed above the brush 61, in which space the brush 61 cannot dry for weeks.An adapter 50 has been screwed onto an external thread 45 of the neck 41 of a container 40, which adapter comprises the collar 2 and the brush sleeve 10.In Figures 10 to 13 there is shown a view and two cuts of a pin with a drilled felt tip 62 with cap 50 with cap automation and internally with a compression spring 33. The felt tip 62, which is flat here, can also be a flat brush 62. It has a central bore 67 which terminates a few millimetres below the writing surface. Due to the now meterable internal pressure in the container 40, viscous and pigmented paints can be applied by felt tip 62 or by flat brush 62. Hitherto, it has been possible to apply only weakly pigmented, thin inks in known fountain pens.The inner valve 4, 24 also acts extremely advantageously here: no ink or ink can run into it when the cap 50 is screwed shut. In the case of version B, when the brush sleeve 20 has not yet been screwed in manually, the stop 59 in the cap 50 is screwed against the sealing collar 29 on the brush sleeve 20, which has the result that the cap 50 perfectly and hermetically seals the flat brush 62 wetted with paint for a few weeks.Another version for screwing the brush sleeve 10 in and out is shown in FIGS. 14 to 17, In this version B, a long internal thread 2 is formed into the adapter 1 and a matching external thread 22 is formed on the brush sleeve 20, wherein the brush sleeve 20 has to be unscrewed in the direction of the applicator element 60 when the cap 50 is removed. The flow can be adjusted very finely.In a further version according to FIGS. 14 to 17, a ball tip 63 made of metal or plastic is provided, from the tip of which a ball 64 projects, a compression spring 65 being fitted underneath which is supported on the inside of the brush sleeve 20 or on the valve cone 24 of the latter. The great advantage of this ball head 63,64,65 is that when paint or white joints are applied between tiles, the inner valve 4,24 cannot be disturbed. This ensures, in comparison with simple pins with ball tips, that the ink flow is always interrupted when the cap 50 is screwed shut and nothing can leak into the interior of the cap 50. In spite of automatic capping, it is sometimes desirable to rotate or pull at this point on the grip ring 21 in order to release the dried-on colors. For this purpose, pull grooves or rotation grooves are then provided on the brush sleeve 20 on the outside.A valve cone 24 has been formed on the inside of this brush sleeve 20, which valve cone is sealingly screwed against the conical valve cone 4 in the adapter 1 in the closed state, wherein it has closed the axial opening or the openings 25 in the valve cone 24. Screwed onto the outside of the adapter 1 is a cap 50 which seals the respective application element 60, the brush 61 and which, in the closed state, is pressed with its inner sealing surface 59 against a shoulder 29 on the grip ring 14 and which has in the process sprung the brush sleeve 10 into the adapter 25, the valve 4, 24 having been closed.The following setting of a second stage with more flow rate is also provided. This is achieved after a further pull on the grip ring 21 in an even further sprung state "maximum flow", where the snap ring 26 on the brush sleeve 20 is pulled against the second snap element 11 arranged further outwards.Various sizes and shapes of a round or flat brush, 62 are generally glued or pressed into a brush sleeve 20 with an internally uniform diameter directly or by means of a mounting sleeve, wherein the brush sleeve 20 itself is in turn movably fastened in the large receiving bore 7 of the adapter 1 by stops 10, 11.Figures 18 to 21 show a view and two sections of a pin with a point of round foam 66 with automatic capping with valve parts 4 and 24 and with a compression spring 33. Since the foam material is very soft and flexible, the brush sleeve 20 does not spring in absolutely due to the pressure during operation.List of reference numbers:1 Adapter 2 Internal thread therein 3 External side of adapter 4 Valve cone in adapter 5 Feed bore to the valve cone, valve bore 6 Central bore after the valve, cone 7 External, large bore in adapter 8 Stop for the compression spring in adapter 9 Smooth region without thread 10 Internal snap ring in the central bore of adapter 11 External snap ring in the central bore of adapter 20 Brush sleeve, turning element 21 Grip ring 22 External thread on brush sleeve 24 Valve cone on brush sleeve 25 Transverse bore therein 26 Snap ring 27' Separate sealing ring or O-ring 28 Stop for the compression spring on turning sleeve 29 Front sealing collar on the brush sleeve, shoulder 30 Brush bottle 33 Compression spring 34 Turning ring 35 Thread for bottle 40 Bottle, Container 41 neck of the bottle 44 interior of the bottles 45 thread on the bottle 50 screw cap, cap 51 internal thread of the screw cap 52 sealing pin for ball seat 59 inner sealing collar in the screw cap 60 application element 61 brush, round brush 62 flat brush 63 application tube 64 sprung ball 65 compression spring for ball 66 sponge or felt head

Claims

Modular brush and ball head bottle for viscous paints, aquare paints, fabric paints, adhesive, for oil, cleaners, rust converters and other liquids, having an application element, for example having a brush, having a ball head with a sprung ball or having a felt, having fibres or having foam, characterized - in that, in an automatic version (A), in an adapter (1) which is screwed onto the container (40), a normal smooth region (9) without an internal thread (2) is formed exclusively in the region of the outer side (3) of the adapter (1), said internal thread being short relative to the screw version (B), - in that a normal smooth region (9) without an internal thread (2) is arranged between the short internal thread (2) in the adapter (1) and its valve cone (4) formed on there, in which the likewise short external thread (22) of the brush sleeve (20) can be moved back and forth, - a compression spring (33) is mounted between a stop (8) on the central bore (6) of the adapter (1) and a stop (28) on the short external thread (22) on the brush sleeve (20), - an inner snap ring (26) is formed on the brush sleeve (20) between its valve cone (24) and the stop (28) of the compression spring (33), which snap ring is snapped behind an outer snap ring (10) in the central bore (6) in the adapter (1) in the mounted state, - either a raised fine sealing ring (27) is formed on between the inner snap ring (26) on the brush sleeve (20) and its valve cone (24) or a separate O-ring (27') is mounted, A threaded cap (50) with internal thread (51) having an internal sealing collar (59) formed thereon which, in the screwed-in state, is sealingly screwed against a front sealing collar (29) at the outer end of the brush sleeve (20) and in the automatic version A) has compressed the compression spring (22), and in a screwed-in version B) without compression spring (33) the internal thread (2) in the adapter (1) is arranged in the entire central bore (6).Modular brush and ball bottle according to claim 1, characterised in that exclusively in automatic version (A) a compression spring (33) is mounted in the interior on a shoulder (8) of the adapter (1) which springs against a shoulder (28) on the axially movable brush sleeve (20), wherein the short internal thread (2) in the adapter (1) and the external thread (22) on the brush sleeve (20) are not engaged in a state in which it is snapped onto the adapter (1) or else in a state in which it is closed with the cap (50).Modular brush and ball head bottle according to claim 1, characterised in that for a screw version (B) without a compression spring (33), a maximum length of internal thread (2') is formed inside the adapter (1) from the outer side (3) to the beginning of the feed bore (5), in which the external thread (22) is rotatable on the brush sleeve (20).Modular brush and ball head bottle according to claims 1 and 5, characterized in that in a screw version B) the internal thread (2) in the adapter (1) and the external thread (22) on the brush sleeve (20) are permanently engaged and no compression spring (33) is mounted.Modular brush and ball head bottle according to one of the preceding claims, characterized in that the internal thread (2) in the adapter (1) has such a small flank height and / or a rounded portion that it only has a maximum 0.6 mm engagement in the external thread (22) on the brush sleeve (20) and can be easily snapped over when the cap (50) is screwed in under axial pressure.Modular brush and ball head bottle according to one of the preceding claims, characterized in that in version (A) the brush sleeve (20) is sprung out in the direction of one of the application elements (60,61,62,63,64,65) when the cap (50) is removed, and in that, in the closed state, a valve cone (24) on the brush sleeve (20) is screwed sealingly against the valve cone 84) in the adapter (1).Modular brush and ball head bottle according to one of the preceding claims, characterized in that in the screw version B) after a leftward rotation of the brush sleeve (10) the valve cone (24) is slightly raised and liquid flows from the bottle (40) via the now open valve bore (11) and via at least one transverse bore (25) in the valve cone (24) into an application element (60), for example via a brush bore (67) into the brush (61).The paintbrush bottle with valve according to any one of the preceding claims, characterized in that in a further version instead of a paintbrush () a ball tip (63) is provided, at the tip of which a ball (64) protrudes, wherein below it a compression spring (65) is attached, which is supported on the inside of the paintbrush sleeve (20) or the adapter (1).The paintbrush bottle with valve according to any one of the preceding claims, characterized in that as an alternative to a paintbrush (61, 62) with a bore (67) in its rear side, in further versions a felt tip (66), fiber tip (66) or foam (66) is inserted into the paintbrush sleeve (20).