# US 11,027,034 B2 · Systems and methods for spraying of sanitizing or disinfecting compositions with improved compatibility > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,034 B2 - Document ID: US11027034B2 - Status: Granted - Kind: B2 - Application number: 15/986,687 - Filed: 2018-05-22 - Published: 2018-11-29 - Granted: 2021-06-08 - Earliest claimed: 2017-05-26 - Assignees: The Clorox Company - Applicants: The Clorox Company - Inventors: Barbara Ekerdt; William L. Smith; John Glauber - Web page: https://patentgrep.com/patent/US11027034B2 ## CPC - A61L 2/22: Phase substances, e.g. smokes or aerosols - B05B 1/14: with multiple outlet openings (B05B1/02, B05B1/26 take precedence); with strainers in or outside the outlet opening - B05B 9/042: {with peristaltic pumps} - B05B 5/16: Arrangements for supplying liquids or other fluent material - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - 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) ## Abstract This invention relates to systems, methods, and disinfecting compositions for spraying onto surfaces to be sanitized or disinfected. Methods may include providing an aqueous hypohalite disinfecting composition, and providing a spraying system that may include a hand-held spray nozzle through which the composition is sprayed during use, and a pump and associated tubing for conveying the composition to the hand-held spray nozzle. The tubing may be specifically selected to exhibit at least a 65% recovery (no more than 35% loss) of hypohalite after 24 hours of contact between the composition and the tubing. The method may further include conveying the composition from the reservoir to the spray nozzle, and spraying the composition through the nozzle, e.g., onto the target surface. A related system may include similar components. A dilute hypohalite disinfecting composition may be provided for use with the system and/or method. The system may allow interchangeable use of a quaternary amine disinfecting composition. ## Claims ### Claim 1 A method for dispensing a hypohalite sanitizing or disinfecting composition through a spraying system, the method comprising: (a) providing an aqueous hypohalite sanitizing or disinfecting composition wherein the concentration of hypohalite is from 85 ppm to 500 ppm and the pH is less than 8; (b) providing a spraying system including: (i) a hand-held spray nozzle through which the aqueous hypohalite sanitizing or disinfecting composition is sprayed during use; (ii) a reservoir containing the aqueous hypohalite sanitizing or disinfecting composition; (iii) a pump and associated tubing for conveying the aqueous hypohalite sanitizing or disinfecting composition from the reservoir to the hand-held spray nozzle, wherein the associated tubing exhibits at least a 65% recovery of hypohalite after 24 hours of contact between the hypohalite sanitizing or disinfecting composition and the associated tubing, wherein the associated tubing comprises one or more of TYGON SE-200 or TYGON 2001; (c) conveying the aqueous hypohalite sanitizing or disinfecting composition from the reservoir to the hand-held spray nozzle and spraying the aqueous hypohalite sanitizing or disinfecting composition through the hand-held spray nozzle onto a target surface to be sanitized or disinfected. ### Claim 2 (depends on 1) The method of claim 1, wherein the associated tubing exhibits at least a 70% recovery of hypohalite after 24 hours of contact between the hypohalite sanitizing or disinfecting composition and the associated tubing. ### Claim 3 (depends on 1) The method of claim 1, wherein the pump comprises a peristaltic pump. ### Claim 4 (depends on 1) The method of claim 1, wherein the associated tubing has a stiffness from 120 lbf/in to 135 lbf/in and/or a compression force to closure of from 20 lbf to 30 lbf. ### Claim 5 (depends on 1) The method of claim 1, wherein the aqueous hypohalite sanitizing or disinfecting composition has a concentration of hypohalite that is at least 85 ppm upon contact with the target surface being sanitized or disinfected. ### Claim 6 (depends on 5) The method of claim 5, wherein the aqueous hypohalite sanitizing or disinfecting composition has a concentration of hypohalite that is not more than 210 ppm upon contact with the target surface being sanitized or disinfected. ### Claim 7 (depends on 1) The method of claim 1, wherein the aqueous hypohalite sanitizing or disinfecting composition comprises one or more hypochlorites or hypochlorous acid. ### Claim 8 A method for dispensing a hypohalite sanitizing or disinfecting composition through a spraying system, the method comprising: (a) providing an aqueous hypohalite sanitizing or disinfecting composition wherein the concentration of hypohalite is from 85 to 500 ppm and the pH is less than 8; (b) providing an electrostatic spraying system including: (i) a hand-held electrostatic spray nozzle through which the aqueous hypohalite sanitizing or disinfecting composition is electrostatically sprayed during use; (ii) a reservoir containing the aqueous hypohalite sanitizing or disinfecting composition; (iii) a peristaltic pump and associated tubing for conveying the aqueous hypohalite sanitizing or disinfecting composition from the reservoir to the hand-held spray nozzle, wherein the associated tubing exhibits at least a 65% recovery of hypohalite after 24 hours of contact between the hypohalite sanitizing or disinfecting composition and the associated tubing, wherein the associated tubing has a stiffness from 120 lbf/in to 135 lbf/in and a compression force to closure of from 20 lbf to 30 lbf; (c) conveying the aqueous hypohalite sanitizing or disinfecting composition from the reservoir to the hand-held electrostatic spray nozzle and electrostatically spraying the aqueous hypohalite sanitizing or disinfecting composition through the hand-held electrostatic spray nozzle onto a target surface to be sanitized or disinfected; wherein the aqueous hypohalite sanitizing or disinfecting composition has a concentration of hypohalite that is at least 85 ppm upon contact with the target surface being sanitized or disinfected. ### Claim 9 (depends on 8) The method of claim 8, wherein the aqueous hypohalite sanitizing or disinfecting composition has a concentration of hypohalite that is from 85 ppm to 210 ppm upon contact with the target surface being sanitized or disinfected. ### Claim 10 (depends on 8) The method of claim 8, wherein the pH of the aqueous hypohalite sanitizing or disinfecting composition is from 5 to 7. ### Claim 11 (depends on 1) The method of claim 1, wherein the pH of the aqueous hypohalite sanitizing or disinfecting composition is from 5 to 7.