Classifications

• • A—HUMAN NECESSITIES
  • A45—HAND OR TRAVELLING ARTICLES
  • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
  • A45D27/00—Shaving accessories
  • A45D27/02—Lathering the body; Producing lather
  • A45D27/10—Lather-producing devices operated by compressed air or by swirling water
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
  • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
  • A47K5/14—Foam or lather making devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1087—Combination of liquid and air pumps
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1097—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle with means for sucking back the liquid or other fluent material in the nozzle after a dispensing stroke
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
  • B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
  • B05B7/0025—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply

Definitions

• the invention relates to a device for producing and dispensing foam, in particular soap foam.
• Such devices are installed at washing points in, for example, bathrooms and toilets, in order, for example, to produce and dispense a metered amount of soap foam for washing hands.
• a simple manual operation of the device is sufficient to produce a certain amount of foam and to distribute it at the same time.
• Devices of this type can be arranged as part of a foam dispenser installed permanently above or at the washing station or as an attachment directly on a liquid storage container.
• a soap foam dispenser which consists of a housing with a volume-adjustable, cylindrical air chamber and a device arranged coaxially there for the simultaneous delivery of foamable liquid from a container, the device consisting of a is formed in a suction-side immersion piston retractable with a check valve from the actuating element for air compression and both the air chamber and a chamber provided with the check valve are connected in the device to a foaming chamber to which the foam outlet channel connects.
• the housing part, which surrounds the air chamber serves as an actuating element for the air compression and its conveyance into the foaming chamber, which is arranged in a part of the foam outlet channel attached to the side of the housing.
• the foam expiration also stops, ie, both in the foaming chamber and in the foam outlet channel, the foam remains, runs out or crusts over time, especially if the device is left unused for a long period of time uses remains.
• the foam is not sucked back because the air chamber does not receive its air supply through the foam outlet channel, but rather through an opening in the wall of the air chamber.
• the object of the present invention is to create a foam dispenser which, with a simple construction, makes the subsequent blowing out unnecessary and prevents possible dripping of foam or foam that has become liquid again.
• the device consists of a housing with a volume-changeable, cylindrical air chamber and a device arranged coaxially thereon for the simultaneous delivery of foamable liquid from a container for air delivery, the device consisting of a valve with a non-return valve from the actuating element for the air compression retractable plunger is formed and both the air chamber and a chamber provided with the check valve are connected in the device to a foaming chamber to which the foam outlet channel connects.
• a piston with a central insert is arranged in the air chamber, which is firmly connected to the piston. The unit formed from the insert and the piston is supported by a spring against the bottom of the air chamber.
• an air duct is arranged, which - 3 - Connects the foam chamber, which is arranged centrally in the insert, to the air chamber.
• the open end of the plunger which is provided with a delivery channel and is displaceable in the device for conveying liquid, protrudes into the insert, directed towards the expansion chamber and firmly connected to it, and a foam suction valve is arranged in the air channel before it opens into the expansion chamber. that connects the air duct with the foam outlet duct.
• FIG. 1 shows a section through a preferred embodiment of the device.
• Fig. 2 shows the device of Figure 1 in side view.
• FIG. 3 separately and in section, the actuating element according to FIG. 1;
• FIG. 4 shows in section another embodiment for direct arrangement on a liquid storage container; 5 separately and in section the device for conveying liquid;
• FIG. 6 shows a section through the actuating element for the air and liquid delivery and the foam formation according to FIG. 4.
• the device according to the invention consists of a housing G with a volume-adjustable, cylindrical air chamber 1 and of a device 2 arranged coaxially thereon for the simultaneous conveyance of foamable liquid from a container V for the purpose of air delivery, the inlet ⁇ direction 2 (see also FIG. 5) is formed from a plunger 5 which can be inserted into a check valve 3 on the suction side by the actuating element 4 for air compression, and both the air chamber 1 and a chamber 6 provided with the check valve 3 in the device 2 are connected to a foaming chamber 8 to which the foam outlet channel 9 connects.
• a piston 10 with a central insert 11 is arranged, which is firmly connected to the piston 10.
• the unit formed from insert 11 and piston 10 is supported by a spring 12 against the bottom 13 of the air chamber 1.
• An air channel 14 is arranged in the insert 11, which connects the foaming chamber 8 arranged centrally in the insert 11 to the air chamber 1.
• the sleeve-shaped insert 11 forms one piece with the piston 10.
• the bottom 17 of the insert 11 has openings 14 * and a sleeve 18 which extends to both sides, the part 17 'which projects into the air chamber 1 receives the open end 7 of the plunger 5 and the inward part 17''of the inner one Wall of a part 14 "of the overall annular cylindrical air duct 14, which on the other hand is delimited by a further sleeve 19.
• This sleeve 19 contains openings 20 above the annular opening 15 for the air, the spaces 21 forming the foaming chamber 8, which is followed by a foaming element 8 'towards the foam outlet channel 9.
• a third sleeve 22 is arranged above the sleeve 19 and is also firmly seated in the insert 11.
• a plurality of openings 24 are arranged, which together with an elastic ring 25 form the foam suction valves 16.
• This hood 26 also has a recess 28 for a drawbar 29 which is adjusted in the direction of arrow P by a hand lever 30 when it rotates in the direction of arrow P 'about its axis 31 on the housing 1.
• the piston 10 is pressed into the air chamber 1 and compresses the air that passes through the openings 14 'into the air duct 14, 14 "and from there to the annular mouth 15 into the space 21 (premixing chamber), where the air with the When the entire unit consisting of piston 10 and insert 11 is pressed down, the plunger 5 (see FIG. 5) firmly connected to it is also pressed into the chamber 6.
• the delivery channel 5 becomes 'leading transverse bores 5 ", and the liquid displaced by the plunger rises in the delivery channel 5' upwards into the foaming chamber 8.
• the foam formed in this then emerges at the end of the foam outlet channel 9 and is taken over by the user's palm there.
• the lever 30 is released, the unit consisting of the piston 10, insert 11 and plunger 5 is reset by the spring 12.
• This reset process causes new liquid to enter the chamber 6 of the device 2 is sucked in that a negative pressure is created in the air chamber 1, which opens the foam return valves 16, so that the negative pressure via bore 27 can also take effect in the foam outlet channel and the residual foam located there in the cavities of the insert 11, ie in sucks back the expansive part of the air duct 14, from which the foam or any liquid which may have regressed is then carried away by the air the next time it is actuated.
• FIGS. 4 and 6 which is intended for a direct attachment to a liquid container V, works on the same principle. Corresponding parts of this embodiment are provided with corresponding reference numerals, so that a repeated description is unnecessary.
• the housing G in the embodiment according to FIG. 1 is here formed by the neck H of the liquid container V, into which the air chamber 1 is screwed.
• a stop 32 in the embodiment according to FIG. 1, which limits the stroke of the piston 10 with its insert 11, is formed in the embodiment according to FIG. 4 by a stop ring 34 screwed onto the wall 33 of the air chamber 1.
• FIGS. 1 and 5 show with regard to the devices 2, these are largely identical, apart from slightly different construction details.
• the plunger 5 slides in a stationary sealing sleeve 35, and the check valve 3 also has a spring 36, which likewise participates in the resetting process.
• the air inflow opening 14 ' represents an annular gap in the embodiment according to FIGS. 4 and 6, while in the embodiment according to FIGS. 1 and 3 it is formed from several such openings 14' which are in relation to one another the center axis 37 of the upper semicircle 38 are distributed, which in this embodiment ensures that foam which is sucked back cannot get into the air chamber 1. - 7 -
• the air chamber 1 with the unit consisting of piston 10 and insert 11 sits directly in the neck H of the liquid container V
• the liquid container V sits in a neck H of the housing G provided with a ventilation valve 39, in which, as shown, the device 2 with the air chamber 1 is arranged, ie in this case the foamable liquid is sucked out of the chamber 40 of the housing G.

Landscapes

• Public Health (AREA)
• Health & Medical Sciences (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Absorbent Articles And Supports Therefor (AREA)
• Percussion Or Vibration Massage (AREA)
• Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
• Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
• Devices For Dispensing Beverages (AREA)
• Medical Preparation Storing Or Oral Administration Devices (AREA)
• Closures For Containers (AREA)
• Detergent Compositions (AREA)
• Jellies, Jams, And Syrups (AREA)
• Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=6908052

Family Applications (1)

Country Status (15)

Families Citing this family (39)

Family Cites Families (13)

• 1994
  • 1994-05-02 DE DE9407178U patent/DE9407178U1/de not_active Expired - Lifetime
• 1995
  • 1995-04-24 CZ CZ19963181A patent/CZ288276B6/cs not_active IP Right Cessation
  • 1995-04-24 CA CA002189151A patent/CA2189151C/fr not_active Expired - Fee Related
  • 1995-04-24 NZ NZ284048A patent/NZ284048A/en unknown
  • 1995-04-24 AT AT95915809T patent/ATE167817T1/de not_active IP Right Cessation
  • 1995-04-24 DE DE59502691T patent/DE59502691D1/de not_active Expired - Fee Related
  • 1995-04-24 WO PCT/DE1995/000547 patent/WO1995029759A1/fr active IP Right Grant
  • 1995-04-24 US US08/732,434 patent/US5779104A/en not_active Expired - Lifetime
  • 1995-04-24 PL PL95317016A patent/PL175389B1/pl not_active IP Right Cessation
  • 1995-04-24 DK DK95915809T patent/DK0758270T3/da active
  • 1995-04-24 JP JP7527934A patent/JPH09512475A/ja active Pending
  • 1995-04-24 AU AU22545/95A patent/AU697302B2/en not_active Ceased
  • 1995-04-24 ES ES95915809T patent/ES2119425T3/es not_active Expired - Lifetime
  • 1995-04-24 EP EP95915809A patent/EP0758270B1/fr not_active Expired - Lifetime
  • 1995-04-24 HU HU9602996A patent/HU219116B/hu not_active IP Right Cessation
  • 1995-04-28 ZA ZA953449A patent/ZA953449B/xx unknown

Non-Patent Citations (1)

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