# US 10,441,115 B2 · High quality non-aerosol hand sanitizing foam > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,441,115 B2 - Document ID: US10441115B2 - Status: Granted - Kind: B2 - Application number: 15/429,389 - Filed: 2017-02-10 - Published: 2017-08-17 - Granted: 2019-10-15 - Earliest claimed: 2016-02-11 - Assignees: GOJO Industries, Inc. - Applicants: GOJO Industries, Inc. - Inventors: Nick E. Ciavarella - Web page: https://patentgrep.com/patent/US10441115B2 ## CPC - A47K 5/14: Foam or lather making devices - A61K 9/122: {Foams; Dry foams (edible foams A61K9/0056)} - A61K 31/045: Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates - B05B 7/0416: {with arrangements for mixing one gas and one liquid} - B05B 7/2402: {Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device (B05B7/0012 takes precedence)} - F04B 13/02: of two or more fluids at the same time - F04B 19/06: Pumps for delivery of both liquid and elastic fluids at the same time (wet gas pumps F04B37/20) - F04B 23/02: having reservoirs - F04B 23/06: the pumps being all of reciprocating positive-displacement type - F04B 43/026: {each plate-like pumping flexible member working in its own pumping chamber} - F04B 43/04: Pumps having electric drive - F04B 45/043: {two or more plate-like pumping flexible members in parallel} - F04B 45/047: Pumps having electric drive - F04B 49/06: Control using electricity (regulating by means of floats actuating electric switches F04B49/04) - A47K: SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES - A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D) - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) ## Abstract High quality non-aerosol foam sanitizers include a liquid mixture that includes an alcohol, water and a surfactant mixed with and entrapping air to form a plurality of foam bubbles. Wherein more than about 50 percent of the foam bubbles have a size of between about 50 μm and about 250 μm. ## Claims ### Claim 1 A non-aerosol foam sanitizer comprising: a liquid mixture that includes c1-c8 alcohol in an amount of between 40% and 85% by weight, water and a surfactant mixed with and entrapping ambient air sourced from the atmosphere to form a plurality of foam bubbles; wherein more than about 50 percent of the foam bubbles have a diameter of between about 50 μm and about 250 μm; wherein the foam bubbles are generated using a liquid pump portion for pumping the liquid mixture that includes c1-c8 alcohol, water and a surfactant and two or more air pump portions for pumping atmospheric air into a mixing chamber for mixing the foamable the liquid mixture with the atmospheric air to form the bubbles having the above size as the bubbles are dispensed; and wherein the liquid pump portion and the two or more air pump portions are activated sequentially. ### Claim 2 (depends on 1) The non-aerosol foam sanitizer of claim 1 wherein the foam bubbles have a density of greater than about 0.10 grams/millimeter. ### Claim 3 (depends on 1) The non-aerosol foam sanitizer of claim 1 wherein the surfactant comprises a compound containing silicone. ### Claim 4 (depends on 1) The non-aerosol foam sanitizer of claim 1 wherein the surfactant comprises silane. ### Claim 5 (depends on 1) The non-aerosol foam sanitizer of claim 1 wherein the surfactant comprises dimethicone. ### Claim 6 (depends on 1) The non-aerosol foam sanitizer of claim 1 wherein the alcohol by volume greater than about 60%. ### Claim 7 A non-aerosol foam sanitizer comprising: a liquid mixture that includes at least about 40% of a c1-c8 alcohol, water and a surfactant mixed with and entrapping ambient air sourced from the atmosphere to form a plurality of foam bubbles; wherein when the liquid mixture is passed through an non-aerosol foam pump, the average diameter of the foam bubbles are less than about 190 μm; wherein the non-aerosol foam pump comprises a liquid pump portion for pumping the liquid mixture that includes c1-c8 alcohol, water and a surfactant and two or more air pump portions for pumping atmospheric air into a mixing chamber for mixing the foamable the liquid mixture with the atmospheric air to form the bubbles having the above size as the bubbles are dispensed; and wherein the liquid pump portion and the two or more air pump portions are activated sequentially. ### Claim 8 (depends on 7) The high quality non-aerosol foam sanitizer of claim 7 wherein the average diameter of the foam bubbles are between about 160 μm and 190 μm. ### Claim 9 (depends on 7) The non-aerosol foam sanitizer of claim 7 wherein the average diameter of the foam bubbles is about 180 μm. ### Claim 10 (depends on 7) The non-aerosol foam sanitizer of claim 7 wherein the foam bubbles have a density of greater than about 0.10 grams/millimeter. ### Claim 11 (depends on 7) The non-aerosol foam sanitizer of claim 7 wherein the surfactant comprises a compound containing silicone. ### Claim 12 (depends on 7) The non-aerosol foam sanitizer of claim 7 wherein the alcohol by volume greater than about 70%. ### Claim 13 (depends on 7) The non-aerosol foam sanitizer of claim 7 wherein the alcohol by volume greater than about 60%. ### Claim 14 A non-aerosol foam pump for producing foam sanitizer comprising: a liquid pump portion for pumping a foamable sanitizer containing c1-c8 alcohol, water and a surfactant; two or more air pump portions for pumping atmospheric air; a mixing chamber for mixing the foamable sanitizer with the atmospheric air to form a foam having foam bubbles that is dispensed from the pump; wherein more than about 50 percent of the dispensed foam bubbles have a diameter of less than about 250 μm; wherein the liquid pump portion and the two or more air pump portions are activated sequentially. ### Claim 15 (depends on 14) The non-aerosol foam pump for producing foam sanitizer of claim 14 wherein more than about 50 percent of the dispensed foam bubbles have a diameter of between about 50 μm and about 250 μm. ### Claim 16 (depends on 14) The non-aerosol foam pump for producing foam sanitizer of claim 14 wherein the liquid pump portion and air pump portions are diaphragms. ### Claim 17 (depends on 14) The non-aerosol foam pump for producing foam sanitizer of claim 14 further comprising a foam cartridge that includes a plurality of sponges, wherein at least two sponges have different properties. ### Claim 18 (depends on 17) The non-aerosol foam pump of for producing foam sanitizer claim 17 wherein the different properties are firmness properties.