US3422993A - Foam dispensing device and package - Google Patents

Foam dispensing device and package Download PDF

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Publication number
US3422993A
US3422993A US3422993DA US3422993A US 3422993 A US3422993 A US 3422993A US 3422993D A US3422993D A US 3422993DA US 3422993 A US3422993 A US 3422993A
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Prior art keywords
container
foam
package
material
deformable
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Expired - Lifetime
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George L Boehm
Stephen R Horvath Jr
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S C Johnson and Son Inc
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S C Johnson and Son Inc
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    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; MANICURING OR OTHER COSMETIC TREATMENT
    • A45D27/00Shaving accessories
    • A45D27/02Lathering the body; Producing lather
    • 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
    • B05B11/04Single-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 deformation of container for liquid or other fluent material
    • B05B11/042Single-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 deformation of container for liquid or other fluent material the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube
    • B05B11/043Single-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 deformation of container for liquid or other fluent material the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube designed for spraying a liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018Spraying 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
    • B05B7/0025Spraying 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
    • B05B7/0031Spraying 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 with disturbing means promoting mixing, e.g. balls, crowns
    • B05B7/0037Spraying 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 with disturbing means promoting mixing, e.g. balls, crowns including sieves, porous members or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00Closures with filling and discharging, or with discharging, devices
    • B65D47/04Closures with discharging devices other than pumps
    • B65D47/06Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages

Description

Jan.

G. 1.. BOEHM ET AL 3,422,993

FOAM DISPENSING DEVIGE AND PACKAGE Original Filed May 5, 1965 sheet of 2 K An.

F/a Z '1 IL K 321,1969 LBOEQM ETAL 3,422,993

FOAM DISPENSING DEVICE AND PACKAGE Original Filed May 5, 1965 Sheet 2 of 2 INVENTORS United States Patent ()fiice 3,422,993 Patented Jan. 21, 1969 3,422,993 FOAM DISPENSING DEVICE AND PACKAGE George L. Boehm and Stephen R. Horvath, Jr., Racine, Wis, assignors to S. C. Johnson & Son, Inc., Racine, Wis.

Continuation of application Ser. No. 453,256, May 5, 1965. This application July 26, 1967, Ser. No. 656,293 U.S. Cl. 222-190 3 Claims Int. Cl. B65d 37/00 ABSTRACT OF THE DISCLOSURE A package for dispensing fluid contained therein as a foam is described. The package comprises an outer deformable housing, rigid container within the deformable housing and a cellular material within the rigid container. The elements are constructed and arranged in order that a fluid being dispensed from the deformable housing and air are required to simultaneously pass into the cellular element where they are admixed prior to being dispensed as a foam.

This application is a continuation of application Ser. No. 453,256 filed May 5, 1965, now abandoned.

This invention relates to a foam producing device and package. More particularly, the invention embraces a package containing a normally liquid material which is dispensed from the container as a uniform foam of controllable characteristics.

Foams are essentially colloidal systems comprising a gas phase dispersed in a liquid phase. These systems are most commonly prepared by agitating a liquid with a gas, or by whipping a gas into a liquid medium. Gas bubbles surrounded by a film of liquid are formed in large numbers, and if the surface forces of the liquid are of the proper magnitude, the foam will persist. The most stable foams are obtained when the enclosing liquid is viscous; whereas when the enclosing liquid is highly fluid, the foams formed will be of only short duration. Although foams are most often not desired in commercial processes, they are eminently suitable for other applications, since minor amounts of the enclosing liquid will cover a relatively large surface area. Moreover, if the foam is stable, the enclosing liquid can be applied to an absorbent surface such as fabric, with only limited wetting of the surface occurring. Therefore, it is often desirable to package cleaners, lotions, polishes, and the like in order that they will be dispensed from the package as foams.

In the prior art, numerous products such as upholstery cleaners, shaving creams, and polishes are packaged and sold in the so-called aerosol containers, for dispensing as foams. In these systems, the material to be dispensed is packaged in a container along with a liquefied propellant, or under pressure with an inert gas such as nitrogen and carbon dioxide. The product is dispensed through a suitable valve mechanism in order that when the mixture leaves the container, the liquid propellant or the inert gas rapidly expands, converting the dispensed material into a foam. Although these products have been highly successful on the consumer market, there are disadvantages to such packages. Thus, the charging of the aerosol containers require special pressurizing equipment and special valves of close tolerances. Moreover, it is necessary to employ containers which will withstand relatively high pressures, particularly in the event an inert gas is used. Since the containers cannot be re-used, the packaging costs are often prohibitive for normally low-cost items such as household cleaners, lotions, and the like. Additionally, with the aerosol containers, there is at least a minimum amount of danger as a result of explosive or fire hazards brought about by the pressurized container and expandable gas. Furthermore, some liquids such as acids cannot be packaged in the conventional tin aerosol container.

In an effort to avoid the problems encountered with aerosol containers, packages have been suggested which comprise a foam producing and dispensing device comprising, in combination, a closed deformable container having an opening means therein, and a compressible spongelike element in the container which does not completely fill the container and which is spaced from the opening means. When a foamable substance is introduced into the deformable container in the nonfoamy state, it is adsorbed and temporarily retained by the spongelike element and will, when the container is deformed in such a manner that the sponge element is compressed, eject the foamable substance from the container in the foamy state. These devices suggested by the prior art, while solving in some respects the problems of the aerosol container, are cumbersome and not completely practical.

Accordingly, it is the primary object of this invention to provide a dispensing device and package which is simple in construction but which permits the dispensing of a normally liquid material as a foam.

It is another object of the invention to provide a foamdispensing device and package which is capable of continuous reuse.

These and other objects of the invention will be more readily apparent from the following detailed description with particular emphasis being placed upon the drawing.

The objects of the present invention are accomplished by loading the dispensable material in a package comprising, in combination, a first deformable elongated container having an opening at one end of the container; a second container which is substantially completely rigid which is positioned in the opening of the deformable container; a porous cellular or spongelike material which is placed in the rigid container, and a closure having a foam ejecting nozzle which is in engagement with the first deformable container. The rigid container is of shorter height than the deformable container and contains breather openings therein. In operation, when the deformable container is inverted for dispensing the material and pressure is applied to the deformable container, air and the material to be dispensed are forced into and through the cellular material entrapping gas bubbles within the enclosing liquid. The material is ejected from the container as a foam. Depending upon the dispensable liquid, particularly its viscosity and other foam-forming characteristics, and the nature of the cellular element, the foam dispensed will vary from a wet, relatively nonstable foam to a dry, stable foam.

As a secondary and preferred embodiment of the invention, a dip tube is attached to the bottom of the rigid container, which tube extends to substantially the bottom of the deformable container. In this embodiment when the container is inverted for dispensing the fluid contained therein, and pressure applied to the deformable container,'air is drawn through the dip tube into the cellular structure. When employing a dip tube, the dimensions of the rigid compartment can be substantially lessened, as well as the amount of cellular material contained therein. Other modifications can be made in the presently disclosed structure which will be apparent to one skilled in the art.

In the accompanying drawing, forming a material part of the application, and wherein like numerals are employed to designate like parts throughout the specification:

FIGURE 1 is a partially broken away cross-sectional view of one embodiment of the present invention;

FIGURE 2 is an exploded cross-sectional view of the package shown in FIGURE 1;

FIGURE 3 is a cross-sectional front view of a secnd embodiment of the invention utilizing a dip tube;

FIGURE 4 is a cross-sectional front view of the rigid container employed in the modification shown in FIG- URE 3; and

FIGURE shows the completed assembly of FIGURE 3 containing a dispensable material in the inverted, foam ejecting position.

More specifically, referring to FIGURE 1 of the drawing, rigid container 2 is positioned in opening 1.1 of deformable housing 1. A porous cellular material 3 substantially fills container 2. Closure 4 having a foam ejecting nozzle 4.2 and an elongated inner sleeve 4.1, which is threadably engaged with container 1, functions to direct the flow of the packaged dispensable liquid and to retain container 2 and cellular material 3 in their proper position. Thus, lip 2.3 of container 2 extends over the edge of shoulder 1.2 of opening 1.1 of deformable container 1. When the container is inverted and container 1 depressed, the dispensable fluid within the container is drawn into rigid container 2 through breather openings 2.1. Air which is drawn in through nozzle 4.2 and the dispensable fluid are admixed in the cellular material and ejected from the container through nozzle 4.2 as a foam.

Although the modification shown in FIGURE 1 is highly efficient, superior foaming with smaller amounts of cellular material can be obtained by using a dip tube 2.3 positioned in opening 2.2 of container 2 as seen in FIGURE 3. When the container is inverted for dispensing the material, as seen in FIGURE 5 dip tube 2.3 will be out of contact with the fluid to be dispensed and will draw air into the cellular material as the container is depressed. When employing the embodiment shown in FIGURE 3, openings 2.1 are preferably located on the bottom of the container 2 rather than on the upper side as shown in FIGURE 1.

According to the invention, container 1 is preferably a flexible plastic such as linear polyethylene, polytetrafiuoroethylene, polyvinylchloride, and the like, or it can be a lightweight metal capable of being deformed. Container 2 and closure 4 which are non-deformable, or substantially so, can be glass, a lightweight metal, or a relatively rigid plastic body. Because of economic considerations and its non-breakability, rigid plastic materials such as linear polyethylene are preferred. The dip tube, again because of economic considerations, is preferably plastic; however, glass dip tubes can be employed.

The cellular material which is to be employed herein and retained in container 2 can be any porous material which is liquid adsorbing or absorbing. Exemplary materials are the natural sponges and the synthetic spongelike materials such as polyurethane, foam rubber, vinylite sponges, polyester sponges, and the like. The synthetic materials are preferred in that the irregular and tortuous paths extending from surface to surface of the materials are highly conducive to the production of a foam. In addition to the above spongelike material, expanded metals, porous ceramics, and the like, can be selected. Again, it is only essential that the material be porous and have an irregular tortuous path extending from surface to surface thereof.

The materials which are to be packaged and dispensed according to the present invention include the common household products for cleaning sinks, fabrics, ovens, and the like, as well as personal products such as lotions, antiseptics, and bactericides. Inasmuch as the containers can be refilled and reused, it is possible to extend the use of foamed materials into areas Where heretofore, because of the increased expense of packaging a foam product, it was impossible to do so. Moreover, the foam ejecting packages of the present invention do not employ liquefied gases, or gases under pressure, and are safe for use in any environment.

As will be apparent to one skilled in the art, the detailed description and the drawing are only set forth as illustrative embodiments of the invention. However, the invention is not to be construed as limited thereby. It is possible to produce still other embodiments without departing from the inventive concept herein described and such embodiments are within the ability of one skilled in the art.

We claim:

1. A foam dispensing device and package comprising in combination:

(1) a deformable elongated housing having an opening at one extremity thereof for retaining a fluid to be dispensed as a foam;

(2) a rigid container or shorter longitudinal height than said elongated housing positioned within said elongated housing; said rigid container having a top and bottom end, said top end having an opening which is in operable association with, and in axial alignment with said opening in said elongated housing, an opening in said bottom end for receiving a dip tube, and an air passage for receiving air into the interior of said rigid container;

(3) a cellular material within and substantially filling said rigid container, said cellular material obstructing said opening for receiving said clip tube;

(4) a dip tube in fluid communication with said opening for receiving a dip tube in said bottom of said rigid container and extending from below and being obstructed by said cellular material within said rigid container; and

(5) a closure for said elongated housing having a foam ejecting nozzle;

said dip tube, rigid container, cellular material, and housing being constructed and arranged such that fluid being dispensed from said elongated housing and air entering said rigid container through said air passage within said rigid container pass into said rigid container and into and through said cellular material prior to being dispensed from said foam ejecting nozzle.

2. The foam dispensing device and package of claim 1 wherein the deformable elongated housing is polyethylene and the cellular material is a polyvinylchloride foam.

3. The foam dispensing device and package of claim 2 wherein the elongated container contains a neck portion and said rigid container is of substantially the same height but of lesser diameter than said neck portion.

References Cited UNITED STATES PATENTS 2,980,342 4/1961 Armour 222-211 X 3,010,613 11/1961 Stossel 222 207 X STANLEY H. TOLLBERG, Primary Examiner.

US. Cl. X.R.

US3422993A 1967-07-26 1967-07-26 Foam dispensing device and package Expired - Lifetime US3422993A (en)

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Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622049A (en) * 1969-05-05 1971-11-23 Schering Corp Dispensing system
US3622290A (en) * 1968-11-04 1971-11-23 Owens Corning Fiberglass Corp Method of making, supplying and applying chemical treatment to glass fibers
US3709437A (en) * 1968-09-23 1973-01-09 Hershel Earl Wright Method and device for producing foam
US3937364A (en) * 1975-04-03 1976-02-10 Hershel Earl Wright Foam dispensing device
US3985271A (en) * 1975-06-06 1976-10-12 Glasrock Products, Inc. Foam generating and dispensing device
DE2610129A1 (en) * 1975-04-03 1976-10-14 Hershel Earl Wright foam generator
US4022351A (en) * 1975-04-03 1977-05-10 Hershel Earl Wright Foam dispenser
US4027789A (en) * 1975-09-10 1977-06-07 Glasrock Products, Inc. Foaming device for high solids content foamable liquids
US4531660A (en) * 1981-12-14 1985-07-30 Hershel Earl Wright Foam dispensing device
US4596343A (en) * 1985-04-12 1986-06-24 Ballard Medical Products Foam dispensing device
US4836422A (en) * 1987-02-11 1989-06-06 Henkel Kommanditgesellschaft Auf Aktien Propellantless foam dispenser
US4846376A (en) * 1988-02-25 1989-07-11 Ballard Medical Products Inversion foamer
US4957218A (en) * 1986-07-28 1990-09-18 Ballard Medical Products Foamer and method
USRE33564E (en) * 1981-12-14 1991-04-02 Ballard Medical Products Foam dispensing device
US5037006A (en) * 1990-03-27 1991-08-06 The Procter & Gamble Company Squeeze bottle foam dispenser with threshold pressure valve
US5056689A (en) * 1990-01-08 1991-10-15 Ciba-Geigy Corporation Apparatus for removing components from solutions
US5064103A (en) * 1990-05-23 1991-11-12 Rjs Industries, Inc. Foam dispenser having a plurality of sieves
US5080800A (en) * 1990-01-08 1992-01-14 Ciba-Geigy Corporation Process for removing components from solutions
US5139666A (en) * 1991-01-04 1992-08-18 Domotechnica Canada, Inc. Bottle and filter
US5238155A (en) * 1991-02-11 1993-08-24 Jack W. Kaufman Foam generating device
US5339988A (en) * 1992-10-19 1994-08-23 Ballard Medical Products Disposable tray sump foamer, assembly and methods
US5445288A (en) * 1994-04-05 1995-08-29 Sprintvest Corporation Nv Liquid dispenser for dispensing foam
US5496471A (en) * 1990-01-08 1996-03-05 Ciba-Geigy Corporation Apparatus for removing components from solutions
US5665332A (en) * 1994-03-28 1997-09-09 Oralcare Systems, Inc. System for delivering foams containing medicaments
US5725129A (en) * 1995-06-06 1998-03-10 American Sterilizer Company Dual-container foam dispenser
US5803315A (en) * 1997-01-06 1998-09-08 Kaufman Products Inc. Dispenser having removable container
US5884817A (en) * 1997-01-30 1999-03-23 Kaufman Products Inc. Tilt dispenser
US5894961A (en) * 1997-01-24 1999-04-20 Kaufman Products Inc. Dispenser with resilient reservoir structure
US5904272A (en) * 1997-11-12 1999-05-18 Kaufman Products Inc. Dispenser for liquids
WO1999049769A1 (en) 1998-03-30 1999-10-07 Sprintvest Corporation N.V. Improved liquid dispenser for dispensing foam
US5984146A (en) * 1996-09-27 1999-11-16 Kaufman; John G. Dispenser having foamed output
US6010683A (en) * 1997-11-05 2000-01-04 Ultradent Products, Inc. Compositions and methods for reducing the quantity but not the concentration of active ingredients delivered by a dentifrice
US6371332B1 (en) 1999-07-13 2002-04-16 Albert H. Fox Apparatus for producing foam from liquid mixture
US6394315B1 (en) 2000-05-08 2002-05-28 Deb Ip Limited Squeeze operated foam dispenser
EP1213229A1 (en) * 2000-12-08 2002-06-12 Valois Sa Fluid product dispenser
WO2003043743A1 (en) * 2001-11-21 2003-05-30 Unilever Plc A foam or mist dispenser
EP1340688A1 (en) * 2000-11-16 2003-09-03 Kanebo Limited Foam delivering container and method for charging contents into the same
EP1428580A1 (en) * 2002-12-11 2004-06-16 Unilever N.V. Foam or mist dispenser
US20040161447A1 (en) * 2000-02-17 2004-08-19 Leonard Paul Liquid foam producing compositions and dispensing system therefor
US20040229963A1 (en) * 2003-02-28 2004-11-18 The Procter & Gamble Company Foam-generating kit containing a foam-generating dispenser and a composition containing a high level of surfactant
US20050257317A1 (en) * 2004-05-24 2005-11-24 Francisco Guerra Apparatus and method for producing foam
WO2006103117A2 (en) * 2005-03-31 2006-10-05 Bean Stephan D Protective device for vessels
US20060229227A1 (en) * 2003-02-28 2006-10-12 Goldman Stephen A Foam-generating kit containing a foam-generating dispenser and a composition containing a high level of surfactant
US20060237483A1 (en) * 2005-04-22 2006-10-26 Heiner Ophardt Bellows dispenser
US20060249538A1 (en) * 2005-04-22 2006-11-09 Heiner Ophardt Foam pump with spring
US20060273114A1 (en) * 2005-04-22 2006-12-07 Heiner Ophardt Stepped pump foam dispenser
US20130175306A1 (en) * 2011-07-12 2013-07-11 Him First, Llc Valves for creating a foam material
US8814005B2 (en) 2012-04-27 2014-08-26 Pibed Limited Foam dispenser
GB2505799B (en) * 2011-05-05 2017-03-15 Bruce Alexander Foam dispenser
US9718069B2 (en) 2014-05-12 2017-08-01 Deb Ip Limited Foam pump
US20170216857A1 (en) * 2014-08-05 2017-08-03 Goizper, S.Coop. Spray for cleaning products

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980342A (en) * 1957-09-05 1961-04-18 Plax Corp Liquid spray dispenser
US3010613A (en) * 1957-05-03 1961-11-28 Stossel Ernest Foam producing and dispensing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3010613A (en) * 1957-05-03 1961-11-28 Stossel Ernest Foam producing and dispensing device
US2980342A (en) * 1957-09-05 1961-04-18 Plax Corp Liquid spray dispenser

Cited By (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709437A (en) * 1968-09-23 1973-01-09 Hershel Earl Wright Method and device for producing foam
US3622290A (en) * 1968-11-04 1971-11-23 Owens Corning Fiberglass Corp Method of making, supplying and applying chemical treatment to glass fibers
US3622049A (en) * 1969-05-05 1971-11-23 Schering Corp Dispensing system
US3937364A (en) * 1975-04-03 1976-02-10 Hershel Earl Wright Foam dispensing device
DE2610129A1 (en) * 1975-04-03 1976-10-14 Hershel Earl Wright foam generator
US4022351A (en) * 1975-04-03 1977-05-10 Hershel Earl Wright Foam dispenser
US3985271A (en) * 1975-06-06 1976-10-12 Glasrock Products, Inc. Foam generating and dispensing device
US4027789A (en) * 1975-09-10 1977-06-07 Glasrock Products, Inc. Foaming device for high solids content foamable liquids
US4531660A (en) * 1981-12-14 1985-07-30 Hershel Earl Wright Foam dispensing device
USRE33564E (en) * 1981-12-14 1991-04-02 Ballard Medical Products Foam dispensing device
US4596343A (en) * 1985-04-12 1986-06-24 Ballard Medical Products Foam dispensing device
US4640440A (en) * 1985-04-12 1987-02-03 Ballard Medical Products Foam dispensing device
US4957218A (en) * 1986-07-28 1990-09-18 Ballard Medical Products Foamer and method
US4836422A (en) * 1987-02-11 1989-06-06 Henkel Kommanditgesellschaft Auf Aktien Propellantless foam dispenser
US4846376A (en) * 1988-02-25 1989-07-11 Ballard Medical Products Inversion foamer
US5080800A (en) * 1990-01-08 1992-01-14 Ciba-Geigy Corporation Process for removing components from solutions
US5612361A (en) * 1990-01-08 1997-03-18 Ciba-Geigy Corporation Apparatus for removing components from solutions
US5639378A (en) * 1990-01-08 1997-06-17 Ciba-Geigy Corporation Method for removing components from solutions
US5496471A (en) * 1990-01-08 1996-03-05 Ciba-Geigy Corporation Apparatus for removing components from solutions
US5056689A (en) * 1990-01-08 1991-10-15 Ciba-Geigy Corporation Apparatus for removing components from solutions
US5037006A (en) * 1990-03-27 1991-08-06 The Procter & Gamble Company Squeeze bottle foam dispenser with threshold pressure valve
WO1991014648A1 (en) * 1990-03-27 1991-10-03 The Procter & Gamble Company Squeeze bottle foam dispenser with threshold pressure valve
US5064103A (en) * 1990-05-23 1991-11-12 Rjs Industries, Inc. Foam dispenser having a plurality of sieves
US5139666A (en) * 1991-01-04 1992-08-18 Domotechnica Canada, Inc. Bottle and filter
US5238155A (en) * 1991-02-11 1993-08-24 Jack W. Kaufman Foam generating device
US5452823A (en) * 1992-10-19 1995-09-26 Ballard Medical Products Disposable tray sump foamer, assembly and methods
US5372281A (en) * 1992-10-19 1994-12-13 Ballard Medical Products Disposable tray sump foamer, assembly and methods
US5339988A (en) * 1992-10-19 1994-08-23 Ballard Medical Products Disposable tray sump foamer, assembly and methods
US5665332A (en) * 1994-03-28 1997-09-09 Oralcare Systems, Inc. System for delivering foams containing medicaments
US5445288A (en) * 1994-04-05 1995-08-29 Sprintvest Corporation Nv Liquid dispenser for dispensing foam
US5725129A (en) * 1995-06-06 1998-03-10 American Sterilizer Company Dual-container foam dispenser
US5984146A (en) * 1996-09-27 1999-11-16 Kaufman; John G. Dispenser having foamed output
US5803315A (en) * 1997-01-06 1998-09-08 Kaufman Products Inc. Dispenser having removable container
US5894961A (en) * 1997-01-24 1999-04-20 Kaufman Products Inc. Dispenser with resilient reservoir structure
US5884817A (en) * 1997-01-30 1999-03-23 Kaufman Products Inc. Tilt dispenser
US6139820A (en) * 1997-11-05 2000-10-31 Ultradent Products, Inc. Delivery system for dental agents
US6010683A (en) * 1997-11-05 2000-01-04 Ultradent Products, Inc. Compositions and methods for reducing the quantity but not the concentration of active ingredients delivered by a dentifrice
US5904272A (en) * 1997-11-12 1999-05-18 Kaufman Products Inc. Dispenser for liquids
US6082586A (en) * 1998-03-30 2000-07-04 Deb Ip Limited Liquid dispenser for dispensing foam
WO1999049769A1 (en) 1998-03-30 1999-10-07 Sprintvest Corporation N.V. Improved liquid dispenser for dispensing foam
US6371332B1 (en) 1999-07-13 2002-04-16 Albert H. Fox Apparatus for producing foam from liquid mixture
US20040161447A1 (en) * 2000-02-17 2004-08-19 Leonard Paul Liquid foam producing compositions and dispensing system therefor
US6394315B1 (en) 2000-05-08 2002-05-28 Deb Ip Limited Squeeze operated foam dispenser
EP1340688A4 (en) * 2000-11-16 2005-03-30 Kanebo Cosmetics Inc Foam delivering container and method for charging contents into the same
EP1340688A1 (en) * 2000-11-16 2003-09-03 Kanebo Limited Foam delivering container and method for charging contents into the same
US20040004087A1 (en) * 2000-11-16 2004-01-08 Hisao Iwamoto Foam delivering container and method for charging contents into the same
US6581852B2 (en) 2000-12-08 2003-06-24 Valois S. A. Fluid dispenser
EP1213229A1 (en) * 2000-12-08 2002-06-12 Valois Sa Fluid product dispenser
WO2003043743A1 (en) * 2001-11-21 2003-05-30 Unilever Plc A foam or mist dispenser
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