US3471064A - Foam generating and dispensing device - Google Patents

Foam generating and dispensing device Download PDF

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Publication number
US3471064A
US3471064A US735433A US3471064DA US3471064A US 3471064 A US3471064 A US 3471064A US 735433 A US735433 A US 735433A US 3471064D A US3471064D A US 3471064DA US 3471064 A US3471064 A US 3471064A
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United States
Prior art keywords
tube
foam
bottle
holes
foamable
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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.)
Expired - Lifetime
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US735433A
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English (en)
Inventor
Lewis A Micallef
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Leeds and Micallef
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Leeds and Micallef
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • 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
    • B05B11/04—Deformable containers producing the flow, e.g. squeeze bottles
    • B05B11/042—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube
    • B05B11/043—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube designed for spraying a liquid
    • 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
    • B05B7/0031—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 with disturbing means promoting mixing, e.g. balls, crowns
    • B05B7/0037—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 with disturbing means promoting mixing, e.g. balls, crowns including sieves, porous members or the like

Definitions

  • Foams may generally be defined as a dispersion or suspension of finely divided gas bubbles in a liquid.
  • the individual gas bubbles are separated from one another by a closed continuous thin film of the liquid.
  • a foam under these circumstances, will contain a relatively small but somewhat evenly distributed quantity of the liquid for a relatively large volume of foam. Under these circumstances, a relatively large surface area may be uniformly covered by foam so that a relatively small amount of the liquid is actually applied to this surface.
  • foams have many useful applications as a vehicle for industrial, household, cosmetic and other personal application fields.
  • foams or aerated products have experienced success as shaving creams, lotions, shampoos and detergents to mention a few.
  • the foam was generated and dispensed by means of an aerosol type of container in which the foamable product was packed under pressure along with a suitable propellant and thereafter released in its foamable state through a valve controlled opening.
  • valves which increase the cost of the pressure packed product.
  • the cost of the propellant a contributing factor but its chemical effect on the other constituents and container walls and valve must be taken into consideration.
  • Another object is to provide a foam generator of this type which While being capable of being refilled and reused, is sufficiently low in cost to render it disposable after the foamable material has been consumed.
  • a further object is to provide a foam generator of the above type which is capable of being filled and dispensed without requiring propellants, special filling equipment or valves and containers.
  • FIG. 1 is a longitudinal sectional view through the foam generator of this invention showing the manual generation of foam by means of the internally mounted perforated tube;
  • FIG. 2 is a similar longitudinal sectional view showing the foam generator after the squeezing operation has stopped and the Walls of the bottle or container have resumed their normal position showing the manner in which foam is thereby built up in the head space;
  • FIG. 3 is a cross-sectional view taken along the line 33 of FIG. 2.
  • a typical squeeze-type of bottle 10 is shown and may be formed of conventional materials such as polyethylene, cellulose acetate and other suitable materials which permits squeezing of the bottles side walls 12 on the application of manual pressure and return to its initial substantially cylindrical shape upon release of this pressure.
  • the top 14 of the bottle 10 is provided with an opening 16 into the container interior and across which a spout 18 is sealed and secured.
  • the spout 18 includes the usual dispensing outlet 20 which may be closed by means of a plug (not shown) during storage and shipping.
  • a protective overcap of suitable form and construction may also be provided for such purposes. All of the caps of this type are well known in the trade.
  • a foam generating perforated tube 20 is mounted interiorly of the bottle 10 and includes an opened upper end 22 fixedly mounted to a concentric substantially downwardly extending apron 24 of the spout 18. Under these circumstances, a direct conduit extends between the interior of the tube 20 and the outlet 20 substantially as shown in FIG. 1.
  • a plurality of holes or openings 26 is provided in the side walls of the tube 20 over a major portion of the upper part of the tube 20. These openings are relatively small in size and may assume a circular or other geometrical configuration formed by punching or other production techniques. Optimum results have been found to be achieved by closing the lower end 28 of the tube in a suitable fashion and by means of a plug or pinching and sealing as typified in the illustrated embodiment.
  • a successful commercial application of the present invention will include a filled bottle 10 with the selected foamable-material 30 to a level at which a predetermined amount of head space 32 is provided.
  • the perforated part of the tube 20 is adapted to be wetted with a relatively thin film of the foamable material 30.
  • This wetting may be accomplished by shaking or agitating the bottle 10 or merely tipping it to secure the desired wetting.
  • both the inner and outer face of the tube 20 will with repeated use contain a film of the foamable product 30.
  • the mere squeezing of the side walls of the bottle 10 will force the foamable liquid 30 upwardly to Wet a part of the tube 20.
  • the upper part of the tube 20 will be constantly wetted.
  • the unperforated part of the tube 20 which will have been wetted will serve as a reservoir or supply for liquid which because of the liquid surface tension and dripping as a result of gravity will close or extend across the perforated or pierced opening to permit once again the formation of more foam.
  • the bottle In actual use, the bottle is squeezed and released, foam is formed on both the inside and outside of the tube 20.
  • the light foam in the head space breaks down slowly and as it mixes with the new form that is created when the bottle is squeezed, upgrades the quality of the final product by producing a finer grained and drier foam.
  • the level of the product 30 will be raised, covering some of the perforations 26, this does not detract from the effectiveness of the generator since it is producing foam during the time the bottle is initially squeezed and by the time the liquid 30 reaches the level where it could effect the balance of air to liquid within the bottle 10, but at this juncture, the limit to which the bottle 10 can be squeezed has generally been reached.
  • cylindrical bottles are preferred because they have the maximum displacement potential; and in such cases, the bottles were filled to between two-thirds and three-quarters capacity.
  • optimum foam is meant the quality of the foam which should be dry and substantially long lasting, the need for minimum consumer instruction and the lessening of restrictions as to the type and size of squeeze bottles employed.
  • the internal diameter of the tube 20 should be in the order of one-quarter of an inch with a nominal diameter being of the order of five-sixteenths of an inch.
  • the controlling factor is the availability of enough surface area to accommodate the number of holes 26 which, when present, will produce the optimum foam.
  • the reduced size holes 26 permits the production of a venturi action which, together with the surface tension of the foamable liquid, results in the formation of quality foam.
  • a minimum of about 400 and a maximum of about 1,000 is suggested with a range of between 750 and 950 being preferred.
  • the arrangement of holes 26 it is found that in a convenient counter-balanced arrangement down the length of the tube to a depth of about one-half to three-quarters of the tubes total length as worked satisfactorily. In this connection, a balanced arrangement is intended to mean an even distribution of holes about the periphery of the tube 20. A greater concentration of holes in the upper end of the tube 20, will raise the ratio of air to product, a greater concentration of holes near the lower end of the perforated part of the tube will raise the ratio of product to air.
  • the diameter of the holes 26 should be from .005 inch to .0l5iinch with .010 inch being preferred. Holes of this magnitude with the foamable products contemplated tend to hold the film across the openings while cooperating to maintain a slight increase in the velocity of fluid movement which is felt in the form of a slight resistance as the bottle 10 is manually squeezed.
  • the number of holes 26 of a diameter of .010 inch does not noticeably improve the quality of the foam as the number is in creased above the maximum limit defined in the above.
  • the size of the openings 26, as aforenoted, should take advantage of the natural surface tension of the film of foamable product that is formed on the inner and outer surface of the tube 20. A lesser number of holes than the minimum mentioned in the above will produce a foam, but the problem created is in the ability of the bottle 10 to recover when squeezing and release of manual pressure has stopped.
  • the holes 26 will, in effect, operate as a brake offering resistance to the passage of air from the ambient back into the bottle head space.
  • the number of holes has a direct bearing on the speed at which the bottle recovers its shape after it has been squeezed.
  • a minimum of 400 holes permits the bottle to recover in an acceptable fashion.
  • the quality of the foam improves, at about 900 there is a levelling off until about 1,000 holes. At this point, the ratio of air to product begins to increase sufficiently so as to cause the quality of the foam to deteriorate.
  • the internal diameter of the tube 20 should define an internal cross-sectional area of the tube which approaches the aggregate open area provided by the openings 26.
  • the aggregate area of 800 holes 26- having a diameter of .010 is approximately .06 inch
  • a tube with a five-sixteenths inch internal bore has an area of about .08 inch which is well within the broad comparative analysis where velocity of product through the holes 26 and out through the spout opening 20 matches the aerating ability of the holes 26. This range has been found to be about 20 percent.
  • the tube 20 its wall thickness is important. It is preferred that this thickness be held at a minimum and a thickness of one thirty-second of an inch has been found to perform satisfactorily.
  • the least expensive and fastest way of making a large number of small diameter holes 26 is to execute a piercing operation. Since a clean cut hole is not essential, a sharp point of the proper diameter is all that is required. Punching these holes would require a male and female die with a greater risk of tool breakage and the problem of disposing of the punched out slugs.
  • a thin tube wall facilitates piercing with a needle or the like and, at the same time, permits the points to be kept relatively short thereby reducing the possibility of breakage.
  • a wick-like arrangement may extend around the perforated tube to insure wetting of the tube and offsetting the requirement for agitation in one form or another for purposes of wetting the tube.
  • an absorbent material may be employed for enclosing the tube within the bottle but which will permit passage of air therethrough.
  • This material may be in the form of a perforated paper cloth or the like capable of acting as a wick which constantly keeps the surface of the tube 20- damp or wet.
  • the pierced tube 20 of suitable resinous material and although preferred could be replaced by a fine mesh screen which could be rolled into a tube.
  • a limiting factor with the use of a fine mesh screen is that the number of holes in a given area will be fixed whereas with a tube of the type contemplated, the number of holes pierced can be varied according to the particular requirements and specifications.
  • a coating or laminate can be employed to close off that part of the screen that would be undesired or not necessary. With this approach, the cost of the finished product would necessarily be increased.
  • a coating of inert material will generally be required for the screen to prevent or minimize any interaction between the screen material and the foamable liquid 30. Flocking of one form or another can be employed for such purposes and one advantage of this is that it would serve as an absorbent for keeping the tube wet.
  • a binary or multiple tube arrangement is envisioned in which one or more of the tubes is pierced in accordance with the preferred embodiment and one or more of the other tub'es arranged in concentric relationship would serve as wicks or capillary channels for taking up and holding the foamable product 30 and, in this manner, keeping the pierced tubes wet for purposes of generating foam and minimizing the requirements for bottle agitation.
  • a device for producing and dispensing foam comprising in combination: a hollow container means adapted to contain a foamable liquid in a non-foaming state, said container means being of flexible material and capable of being compressed so as to have its volume reduced and capable of being self-expanding back to its original volume, said container means having an upper open end, a dispensing outlet means mounted on the upper open end of the container means for directing the foam to be dispensed to the selected location, a tube mounted interiorly of the container means and having an open upper end communicating with the dispensing means for passage of the foam from the tube into the dispensing means, the
  • tube having a longitudinally extending tubular side wall defining an internal bore extending to and communicating with the tube upper end, the tube side wall having a plurality of openings communicating with the interior of the container means and the bore of the tube, the openings in the tube side wall being capable of being covered by the foamable liquid in its non-foaming state whereupon compression of the container means generates foam in the tube bore which is adapted to be ultimately forced upwardly out through the tube upper opening into and eventually out of the dispensing means.
  • the container means is adapted to expand back to its original volume upon removal of the compressive forces whereupon foam is generated in the head space within the container means above the level of the foamable liquid to thereby maintain the upper surfaces of the tube side walls wet with the foamable liquid and provide for a reserve of the foam for dispensing upon subsequent compression of the container means.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
US735433A 1968-06-07 1968-06-07 Foam generating and dispensing device Expired - Lifetime US3471064A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73543368A 1968-06-07 1968-06-07
DE19691943111 DE1943111A1 (de) 1968-06-07 1969-08-25 Schaumerzeugungs- und Spruehgeraet

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Cited By (38)

* 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
US3710989A (en) * 1969-11-06 1973-01-16 Monsanto Co Spray dispensing cap and hinged closure
US3970219A (en) * 1975-03-03 1976-07-20 Spitzer Joseph G Aerosol containers for foaming and delivering aerosols and process
FR2306141A1 (fr) * 1975-04-03 1976-10-29 Wright Hershel Distributeur de mousse
US4019657A (en) * 1975-03-03 1977-04-26 Spitzer Joseph G Aerosol containers for foaming and delivering aerosols
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
US4047642A (en) * 1973-03-22 1977-09-13 Billy Nils Nilson Spraying device
US4087026A (en) * 1971-09-15 1978-05-02 Petterson Tor H Barrier package
USD249099S (en) * 1976-10-29 1978-08-29 Taylor Charles H Liquid cosmetic applicator
US4240482A (en) * 1978-03-17 1980-12-23 Duni Bila Ab Bag-like liquid containers, especially for medical treatment
US4414168A (en) * 1980-11-24 1983-11-08 Esb Incorporated Process for manufacturing a porous dip tube
US4510109A (en) * 1981-06-19 1985-04-09 Carella Richard F Method for making arrow fletching
US4524458A (en) * 1983-11-25 1985-06-18 Pongrass Robert G Moisture responsive stiffening members for flexible containers
FR2641202A1 (fr) * 1989-01-03 1990-07-06 Poizot Francis Dispositif de production de mousse
US4993599A (en) * 1989-01-11 1991-02-19 Gruenewald Frederick P Static pressure whipping dispenser of whipped products and process of operation
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
US5421824A (en) * 1988-02-10 1995-06-06 Boston Scientific Corporation Bladder evacuator
US5984146A (en) * 1996-09-27 1999-11-16 Kaufman; John G. Dispenser having foamed output
US6086278A (en) * 1994-04-19 2000-07-11 Keller; James Mcneel Foam dispensing bottle brush
US6371332B1 (en) 1999-07-13 2002-04-16 Albert H. Fox Apparatus for producing foam from liquid mixture
US20020117519A1 (en) * 2001-02-16 2002-08-29 L'oreal Spray container device
US20050054995A1 (en) * 2003-09-09 2005-03-10 Barzell Winston E. System and method for irrigation and tissue evacuation and collection
US20070045448A1 (en) * 2005-08-26 2007-03-01 L'oreal Device for a atomising a fluid product
US7690536B2 (en) * 2003-01-30 2010-04-06 The Sun Products Corporation Foam dispenser
US20100102085A1 (en) * 2008-10-23 2010-04-29 Kanfer Joseph S Handheld dispensers for personal use
WO2013009761A1 (en) * 2011-07-13 2013-01-17 The Foundry, Llc Methods and apparatus for delivering a therapeutic agent to nasopharyngeal mucosa targets
US8469924B2 (en) 2006-04-04 2013-06-25 Covidien Lp Method and apparatus for generating vascular treatment foam
US20130175306A1 (en) * 2011-07-12 2013-07-11 Him First, Llc Valves for creating a foam material
US20140008394A1 (en) * 2012-07-03 2014-01-09 Paulus Antonius Augustinus Höfte Foam Generating Dispenser
EP2759291A1 (de) 1999-05-26 2014-07-30 Btg International Limited Therapeutische Mikroschäume
US20150289711A1 (en) * 2014-04-14 2015-10-15 Marius Willie Pieter Venter Method for preparing a foamed beverage
US20170143946A1 (en) * 2014-07-21 2017-05-25 Roy J Martin Foam applicator for in-ear use
US20190126546A1 (en) * 2016-05-12 2019-05-02 Hewlett-Packard Development Company, L.P. Build material container
US20220016805A1 (en) * 2017-06-06 2022-01-20 Zeon Corporation Storage and delivery systems for colloidal dispersions
US11268268B2 (en) * 2017-11-06 2022-03-08 Lg Household & Health Care Ltd. Method for cleaning drain pipe of sink and cleaning container therefor
US11298514B2 (en) 2016-12-26 2022-04-12 Roy J. Martin Foam applicator for in-ear use

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1991720A (en) * 1934-03-26 1935-02-19 Julian C Barreda Liquid dispensing and compounding device
US3260421A (en) * 1961-10-18 1966-07-12 Precision Valve Corp Dispensing device for aerosol pressure containers
US3346146A (en) * 1966-02-25 1967-10-10 Schering Corp Combination dispenser
US3409181A (en) * 1966-07-18 1968-11-05 Lehmann Kenneth G Squeeze bottle dispenser

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1991720A (en) * 1934-03-26 1935-02-19 Julian C Barreda Liquid dispensing and compounding device
US3260421A (en) * 1961-10-18 1966-07-12 Precision Valve Corp Dispensing device for aerosol pressure containers
US3346146A (en) * 1966-02-25 1967-10-10 Schering Corp Combination dispenser
US3409181A (en) * 1966-07-18 1968-11-05 Lehmann Kenneth G Squeeze bottle dispenser

Cited By (53)

* 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
US3710989A (en) * 1969-11-06 1973-01-16 Monsanto Co Spray dispensing cap and hinged closure
US4087026A (en) * 1971-09-15 1978-05-02 Petterson Tor H Barrier package
US4047642A (en) * 1973-03-22 1977-09-13 Billy Nils Nilson Spraying device
US3970219A (en) * 1975-03-03 1976-07-20 Spitzer Joseph G Aerosol containers for foaming and delivering aerosols and process
US4019657A (en) * 1975-03-03 1977-04-26 Spitzer Joseph G Aerosol containers for foaming and delivering aerosols
FR2306141A1 (fr) * 1975-04-03 1976-10-29 Wright Hershel Distributeur de mousse
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
USD249099S (en) * 1976-10-29 1978-08-29 Taylor Charles H Liquid cosmetic applicator
US4240482A (en) * 1978-03-17 1980-12-23 Duni Bila Ab Bag-like liquid containers, especially for medical treatment
US4414168A (en) * 1980-11-24 1983-11-08 Esb Incorporated Process for manufacturing a porous dip tube
US4510109A (en) * 1981-06-19 1985-04-09 Carella Richard F Method for making arrow fletching
US4524458A (en) * 1983-11-25 1985-06-18 Pongrass Robert G Moisture responsive stiffening members for flexible containers
US5421824A (en) * 1988-02-10 1995-06-06 Boston Scientific Corporation Bladder evacuator
FR2641202A1 (fr) * 1989-01-03 1990-07-06 Poizot Francis Dispositif de production de mousse
EP0379818A1 (de) * 1989-01-03 1990-08-01 POIZOT, Francis Vorrichtung zur Erzeugung von Schaum
US4993599A (en) * 1989-01-11 1991-02-19 Gruenewald Frederick P Static pressure whipping dispenser of whipped products and process of operation
US5238155A (en) * 1991-02-11 1993-08-24 Jack W. Kaufman Foam generating device
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
US5452823A (en) * 1992-10-19 1995-09-26 Ballard Medical Products Disposable tray sump foamer, assembly and methods
US6086278A (en) * 1994-04-19 2000-07-11 Keller; James Mcneel Foam dispensing bottle brush
US5984146A (en) * 1996-09-27 1999-11-16 Kaufman; John G. Dispenser having foamed output
EP2759291A1 (de) 1999-05-26 2014-07-30 Btg International Limited Therapeutische Mikroschäume
US6371332B1 (en) 1999-07-13 2002-04-16 Albert H. Fox Apparatus for producing foam from liquid mixture
US6755357B2 (en) * 2001-02-16 2004-06-29 L'oreal Spray container device
US20020117519A1 (en) * 2001-02-16 2002-08-29 L'oreal Spray container device
US7690536B2 (en) * 2003-01-30 2010-04-06 The Sun Products Corporation Foam dispenser
US20050054995A1 (en) * 2003-09-09 2005-03-10 Barzell Winston E. System and method for irrigation and tissue evacuation and collection
US7172579B2 (en) 2003-09-09 2007-02-06 Civco Medical Instruments Co., Inc. System and method for irrigation and tissue evacuation and collection
US20070213666A1 (en) * 2003-09-09 2007-09-13 Civco Medical Instruments Co., Inc. System and method for irrigation and tissue evacuation and collection
US7780041B2 (en) * 2005-08-26 2010-08-24 L'oreal Device for atomising a fluid product
US20070045448A1 (en) * 2005-08-26 2007-03-01 L'oreal Device for a atomising a fluid product
US9855536B2 (en) 2006-04-04 2018-01-02 Covidien Lp Method and apparatus for generating vascular treatment foam
US8469924B2 (en) 2006-04-04 2013-06-25 Covidien Lp Method and apparatus for generating vascular treatment foam
US9327104B2 (en) 2008-05-18 2016-05-03 The Foundry, Llc Methods and apparatus for delivering a therapeutic agent to nasopharyngeal mucosa targets
US7984831B2 (en) * 2008-10-23 2011-07-26 Gojo Industries, Inc. Handheld dispensers for personal use
US20100102085A1 (en) * 2008-10-23 2010-04-29 Kanfer Joseph S Handheld dispensers for personal use
US20130175306A1 (en) * 2011-07-12 2013-07-11 Him First, Llc Valves for creating a foam material
US9403290B2 (en) * 2011-07-12 2016-08-02 Scott Frailey Valves for creating a foam material
WO2013009761A1 (en) * 2011-07-13 2013-01-17 The Foundry, Llc Methods and apparatus for delivering a therapeutic agent to nasopharyngeal mucosa targets
US10869913B2 (en) 2011-07-13 2020-12-22 The Foundry, Llc Methods and apparatus for delivering a therapeutic agent to nasopharyngeal mucosa targets
US10004789B2 (en) 2011-07-13 2018-06-26 The Foundry Llc Methods and apparatus for delivering a therapeutic agent to naspharyngeal mucosa targets
US20140008394A1 (en) * 2012-07-03 2014-01-09 Paulus Antonius Augustinus Höfte Foam Generating Dispenser
US9120108B2 (en) * 2012-07-03 2015-09-01 The Procter & Gamble Company Foam generating dispenser
US20150289711A1 (en) * 2014-04-14 2015-10-15 Marius Willie Pieter Venter Method for preparing a foamed beverage
US20170143946A1 (en) * 2014-07-21 2017-05-25 Roy J Martin Foam applicator for in-ear use
US20190126546A1 (en) * 2016-05-12 2019-05-02 Hewlett-Packard Development Company, L.P. Build material container
US10751941B2 (en) * 2016-05-12 2020-08-25 Hewlett-Packard Development Company, L.P. Build material container
US11298514B2 (en) 2016-12-26 2022-04-12 Roy J. Martin Foam applicator for in-ear use
US20220016805A1 (en) * 2017-06-06 2022-01-20 Zeon Corporation Storage and delivery systems for colloidal dispersions
US11268268B2 (en) * 2017-11-06 2022-03-08 Lg Household & Health Care Ltd. Method for cleaning drain pipe of sink and cleaning container therefor

Also Published As

Publication number Publication date
DE1943111A1 (de) 1971-03-04

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