EP0384824A1 - Tragbarer Spender für gefährliche Flüssigkeiten - Google Patents

Tragbarer Spender für gefährliche Flüssigkeiten Download PDF

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Publication number
EP0384824A1
EP0384824A1 EP90400455A EP90400455A EP0384824A1 EP 0384824 A1 EP0384824 A1 EP 0384824A1 EP 90400455 A EP90400455 A EP 90400455A EP 90400455 A EP90400455 A EP 90400455A EP 0384824 A1 EP0384824 A1 EP 0384824A1
Authority
EP
European Patent Office
Prior art keywords
reservoir
outlet
dispenser
inlet
tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90400455A
Other languages
English (en)
French (fr)
Inventor
Christian Auguste Michel Robert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0384824A1 publication Critical patent/EP0384824A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/0013—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs dispensing by gravity or by shaking

Definitions

  • liquid distributors to which the invention refers are those which make it possible to deposit a small quantity of product on a support.
  • dispensers include a reservoir connected to an applicator.
  • the best known of the dispensers of this type is probably the fountain pen which includes a reservoir for liquid ink, the applicator being the nib itself.
  • the flow of ink is determined by the pen which is split and which provides a more or less large passage for the liquid depending on whether the pressure exerted by the user on the support more or less opens the slot in the pen, which passage is completely closed when the pen slot is closed.
  • a reservoir for liquids with moderately rapid drying, a reservoir is used which opens onto a solid and permeable applicator, for example made of bamboo, felt or foam; - for very fast-drying liquids (so-called "Chinese” ink for example), the reservoir is associated with an applicator constituted by a flow tube with a more or less extended passage section and containing a movable mandrel.
  • the dispenser When the dispenser is used, the user presses the tube against a support which is to receive the ink and, by this single pressing action, the mandrel is pushed back into the reservoir, which clears the outlet passage.
  • the tube is no longer resting against the support and the mandrel is brought back (by its own weight or by a spring) into the tube to occupy the outlet passage and, therefore, prevent ink when drying closes the tube.
  • the liquid is always in the immediate vicinity of the applicator and the actuation of the latter, even accidental, ipso facto causes the liquid to flow. This is how distracted or clumsy schoolchildren cause ink stains everywhere.
  • Document FR-A-2 324 468 describes a writing instrument such as a felt-tip pen comprising on the one hand a writing "core" composed of an ink-absorbing material such as felt and on the other hand, a set of nested cylinders forming an ink reservoir, an intermediate chamber and an outlet chamber.
  • the cylinder forming a reservoir can communicate with the intermediate chamber when the opening of the intermediate chamber is obtained by pressing on the bottom of a flexible bellows part situated at one end of the reservoir.
  • the flexible bellows part is not protected against involuntary pressures. It is therefore possible that the device is accidentally in an intermediate position in which the reservoir and the two chambers are in communication, which gives rise to a direct flow in the "core" of the ink contained in the reservoir. This accidental intermediate position is made possible insofar as it is only necessary to go through two positions to obtain a flow of the ink, that is to say that there is no real security.
  • Document DE-A-36 29627 describes a writing instrument comprising a large reservoir and a dosing chamber.
  • the chamber is constantly in communication with the large tank except during its emptying.
  • the entrance to the room is closed first to prevent the dose from being changed, then the exit is opened to collect only the dose.
  • a concrete case where one must spread a dangerous liquid on a support is that of the application of an acid on a metal part, in particular with a view to carrying out certain verifications.
  • the acid is so corrosive, that it is completely excluded to use conventional dispensers of which some examples have been given above: no feather, no applicator made of bamboo, felt or sponge can resist the acid attack.
  • the present invention provides a solution to this problem by allowing the use of a portable device, comprising a sealed reservoir from which the product cannot accidentally flow.
  • the subject of the invention is a portable dispenser of a flowable product, in particular a liquid, of the type comprising a main reservoir communicating with an empty space forming an intermediate reservoir of smaller dimensions, itself connected by an outlet to an applicator to be brought into contact with a support having to receive product, characterized in that the main tank is mounted movable relative to a shutter provided on a mouthpiece forming both an outlet of the main tank and an inlet of the intermediate tank, said shutter itself being combined with a shutter provided on the outlet of the intermediate tank, while means for moving the main tank and the two movable mounted shutters are placed outside the dispenser to be accessible to a user.
  • the two movable shutters are combined so that one of them is necessarily in a closed position when the other is in the open position; -
  • the inlet and outlet of the intermediate tank are aligned and the two shutters are integral with the same movable rod, the inlet of the intermediate tank being on a part which is itself mounted mobile;
  • the main tank is mounted movable relative to a body and is integral with a part in which is formed the inlet of the intermediate tank;
  • the rod is secured to a pin biased by a spring towards the closed position of the two shutters;
  • the main tank is secured to a pusher and is biased by a spring towards a position in which the inlet of the intermediate tank is closed by the corresponding shutter; -
  • the pusher is connected to a spring which biases the shutters towards their closed position;
  • the spring associated with the control means is located outside the tanks;
  • the device comprises means for entering air into the main tank; -
  • the air inlet means comprise at least one member which must oppose
  • a dispenser according to the invention comprises an oblong body 1, recalling the shape of a pen.
  • This body is more or less important according to the envisaged applications and according to the quantity of product which one wishes to have.
  • the body 1 comprises a substantially cylindrical middle part 2 secured to a base 3 and to a sleeve 4.
  • a removable tip 5 On the base 3 is screwed a removable tip 5 receiving an interchangeable applicator composed of a brush 6 whose frame 7 is cruciform and held in place by means of a ring 8 removably mounted because it is screwed on tip 5.
  • the brush 6 must be impregnated with product to be spread and it is assumed here that it is a dangerous product such as acid. Also, to avoid any accident, however small, which may occur as a result of unintentional contact with the brush 6, provision may be made for a cap 10 intended to be placed on the ring 8, either by simple pressing in, as shown, or by screwing or clipping, as is known per se.
  • the base 3 has a bottom 15 and a crown 16 serving as a seat for a seal 17 interposed between it and the bottom 18 of the end piece 5.
  • the bottom 15 is crossed by passages 19 and a central hole 20.
  • the bottom 18 of the end piece 5 also has a central passage 21 widening by a mouth 22 with a frustoconical circular wall constituting a seat for a shutter.
  • the base 3 has a central cylindrical space 25 in which a cylindrical reservoir 26 is driven movable in axial sliding.
  • the reservoir 26 is closed at its lower part by an annular piece 27 crossed by a central passage 28 widening by a mouth 29 with a frustoconical circular wall constituting a seat for a shutter.
  • An O-ring 30 placed in a groove in the space 25 seals between the outer wall of the reservoir 26 and the inner wall of the space 25.
  • a ring 31 is fixed to the upper part of the reservoir 26 and is supported on a spring 32 placed between the reservoir 26 and the middle part 2 of the distributor, spring 32 which rests on the base 3 or, more precisely, on a washer d sealing 33 interposed between the lower edge of the middle part 2 and an upper recess of the base 3.
  • the reservoir 26 is provided, at its upper part, with a nozzle 35 slidably mounted in the sleeve 4. This nozzle 35 is traversed by a central passage which has a circular shoulder 36 on which an O-ring 37 rests.
  • a pin 38 is engaged fixed by its free end to a rod 39 and provided with a crown 40 which must bear on the seal 37.
  • the pin 38 is biased by a spring 41 held by a screw 42 engaged in a threaded hole in the end piece 35.
  • the upper part 43 of the rod 39 has a larger diameter than that of the rod 39 proper and these two parts of different diameters are connected by a frustoconical intermediate portion constituting a shutter 44 which must cooperate with the seat 29.
  • the lower part of the rod 39 passes through the central hole 20 and extends beyond the bottom 15. It receives a frustoconical part constituting a shutter 45 which must cooperate with the seat 22.
  • the empty space 46 which remains between the underside of the annular part 27 and the bottom 18 of the nozzle 5 constitutes a reservoir of smaller capacity than that of the reservoir 26. As it is located between the main reservoir 26 and the applicator 6, it is also called "intermediate tank”.
  • the outlet from the main tank 26 is formed by the passage 28 which also constitutes the inlet to the intermediate tank 46.
  • the outlet from the intermediate tank 46 is formed by the central passage 21.
  • the bottom 15 of the base 3 essentially constitutes a guide for the rod 39 so that the shutter is suitably driven between its closed and erased positions.
  • the passages 19 provide continuity on either side of the bottom 15.
  • a pusher 50 mounted movable relative to the sleeve 4 and having a crown 51 located opposite a shoulder 52 that has the sleeve 4.
  • the crown 51 is in abutment against the shoulder 52 and maintains everything so that the spring 41 plays its role of element for biasing the spindle 38.
  • the distributor In the position of Figure 1, the distributor is said to be "at rest".
  • the reservoir 26 is more or less filled with a liquid product A such as acid.
  • the product A cannot therefore escape, even accidentally, since if inadvertently the brush 6 was placed against a hard body, pressing or not, the shutter 44 placed inside the dispenser is in the closed position and is inaccessible.
  • the shutter 45 is itself, in the erasing position, separated from the seat 22.
  • the reservoir 26 is forced to lower by compressing the spring 32.
  • the spring 41 remains taut and pushes in front of it the spindle 38 and the rod 39, the shutter 44 being in abutment on the seat 29.
  • the intermediate reservoir 46 is more or less filled depending on the time during which pressure is exerted on the pusher 50, but there can be no overflow or other accident if the pressure is kept unnecessarily long because of the shutter 45 which is in the active position (FIG. 3).
  • the last step ( Figure 5) consists in completely releasing the pressure on the pusher (50), which has the effect of bringing the distributor back into its original position called “rest”, the shutter 45 then being lifted away from the seat 22. This position allows the product A to leave the intermediate reservoir 46 by gravity, passing through the passage 21. It flows between the radial branches of the frame 7 and permeates the brush 6.
  • the intermediate tank 46 or not constitutes a metering device depending on the time during which the pusher is actuated.
  • a time less than that which is necessary for the product A to pass from the main tank 26 and to completely fill the intermediate tank 46, has the consequence that the quantity of product A available is unknown, the only certainty is that this quantity is less than the capacity of the intermediate reservoir 46. If it is desired to obtain a maximum dose, that is to say the totality of the capacity of the intermediate tank 46, it is necessary to keep the pusher 50 pressed for the time necessary for the transfer, time which can be assessed fairly quickly by habituation.
  • FIG. 6 there is shown an embodiment of the invention according to which an air inlet is provided in the main tank, in order to facilitate the outlet of liquid A.
  • liquid A When the liquid A is little or not dangerous, we can provide a fairly simple air intake while if the liquid A is dangerous (acid for example) it must be ensured that air can enter the tank without liquid A can escape.
  • the sleeve 4 is longer than that of the previous embodiment and the pusher is replaced by an assembly which will be described in detail below.
  • This assembly comprises a sliding part 59 in which there is a nozzle 60 which is supported on a shoulder 61 with the interposition of a sealing washer 62 and which is screwed into a thread 63.
  • the endpiece 60 is crossed by an axial passage which has an upper chamber 64, a median channel 65 and a lower chamber 66.
  • a sliding rod 67 provided with a crown 68 is engaged in the channel 65 by the chamber 64.
  • a ring 70 through a central passage 71 is screwed onto a thread 72 outside the end piece 60.
  • the rod 67 is provided with an O-ring seal 73 near its inner end so that it can function as a piston in channel 65, which then behaves like a cylinder.
  • a spring 74 is placed in the upper chamber 64 and extends from a lower shoulder 75 of the chamber 64 to the underside of the crown.
  • the rod 67 is biased outward and there remains a space beyond the inner end 68. of the rod 67.
  • the endpiece 60 is crossed by radial conduits 76 and 77 which communicate the channel 65, below the rod 67, and the space 78 which remains between the inside of the sleeve 4 and the outside tip 60.
  • Chamber 66 has a thread 78 for screwing the body 79 of a valve 80.
  • This contains a piston 81 having longitudinal passages near its periphery and provided with a seal 82 applied to a seat upper annular 83 by a spring 84 interposed between a shoulder 85 of the piston 81 and a lower shoulder 86 of the body 79.
  • the lower part 87 of the part 59 is equivalent to the end piece 35 visible in FIGS. 1 to 5.
  • the spring 41 held by a screw 90 which plays the role of the screw 42.
  • this screw has a thread which is coordinated with that of the corresponding thread so that there remains between them a continuous helical space.
  • the lowering of the rod 67 has the effect of closing the radial conduits 76 and 77 and therefore does indeed cause the compression of the fraction of air occluded in the channel 65.
  • the compression of the air has the effect of pushing the piston 81 and the seal 82 leaves its seat 83, the air then passing through the longitudinal passages to exit the valve 80 according to arrow F5 through a central passage 91 of the body 79 .
  • the air reaches the screw 90 and borrows the continuous helical space which remains between this screw 90 and the corresponding tapping.
  • this seal 37 is intended to oppose the accidental exit of liquid A and, with the embodiment of Figure 6, this exit is prevented by other means which will be described later.
  • the user acts automatically at the periphery of the upper end of the device according to arrows F7 and therefore causes the lowering of the endpiece 60 which, by pressing on the shoulder 61, drives downwards. all the elements integral with part 59.
  • liquid A cannot flow through the air inlet because, first of all, the continuous helical space which is at the periphery of the screw 90 is a capillary duct full of air and the liquid cannot pass.

Landscapes

  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Pens And Brushes (AREA)
EP90400455A 1989-02-20 1990-02-20 Tragbarer Spender für gefährliche Flüssigkeiten Withdrawn EP0384824A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8902192A FR2643290B1 (fr) 1989-02-20 1989-02-20 Distributeur portatif de liquide, notamment dangereux
FR8902192 1989-02-20

Publications (1)

Publication Number Publication Date
EP0384824A1 true EP0384824A1 (de) 1990-08-29

Family

ID=9378947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90400455A Withdrawn EP0384824A1 (de) 1989-02-20 1990-02-20 Tragbarer Spender für gefährliche Flüssigkeiten

Country Status (2)

Country Link
EP (1) EP0384824A1 (de)
FR (1) FR2643290B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0829431A1 (de) * 1996-03-27 1998-03-18 Pentel Kabushiki Kaisha Flüssigkeitsverteiler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2324468A1 (fr) * 1975-09-22 1977-04-15 Funahashi Takaji Instrument d'ecriture
DE3545876A1 (de) * 1985-02-20 1986-08-21 Mitsubishi Pencil Co. Ltd., Tokio/Tokyo Buerstenartiges schreibinstrument
WO1987000404A1 (en) * 1985-07-13 1987-01-29 A.W. Faber-Castell Unternehmensverwaltung Gmbh & C Fluid matter dispenser
DE3629627C1 (de) * 1986-08-30 1988-01-14 Faber Castell A W Stiftfoermige Vorrichtung zum Abgeben von fliessfaehigen Massen aus einem Vorratsbehaelter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2324468A1 (fr) * 1975-09-22 1977-04-15 Funahashi Takaji Instrument d'ecriture
DE3545876A1 (de) * 1985-02-20 1986-08-21 Mitsubishi Pencil Co. Ltd., Tokio/Tokyo Buerstenartiges schreibinstrument
WO1987000404A1 (en) * 1985-07-13 1987-01-29 A.W. Faber-Castell Unternehmensverwaltung Gmbh & C Fluid matter dispenser
DE3629627C1 (de) * 1986-08-30 1988-01-14 Faber Castell A W Stiftfoermige Vorrichtung zum Abgeben von fliessfaehigen Massen aus einem Vorratsbehaelter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0829431A1 (de) * 1996-03-27 1998-03-18 Pentel Kabushiki Kaisha Flüssigkeitsverteiler
EP0829431A4 (de) * 1996-03-27 2000-07-12 Pentel Kk Flüssigkeitsverteiler

Also Published As

Publication number Publication date
FR2643290B1 (fr) 1991-12-20
FR2643290A1 (fr) 1990-08-24

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