# US 12,110,629 B1 · Dryer lint exhaust cleaning apparatus and method for using > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,110,629 B1 - Document ID: US12110629B1 - Status: Granted - Kind: B1 - Application number: 17/408,996 - Filed: 2021-08-23 - Granted: 2024-10-08 - Earliest claimed: 2021-01-13 - Applicants: Kenneth Steve Ramsey - Inventors: Kenneth Steve Ramsey - Web page: https://patentgrep.com/patent/US12110629B1 ## CPC - D06F 58/22: Lint collecting arrangements - B08B 5/02: Cleaning by the force of jets, e.g. blowing-out cavities {(airguns or nozzles per se B05B1/005)} - B08B 9/0328: {by purging the pipe with a gas or a mixture of gas and liquid} - B08B 2209/032: by the mechanical action of a moving fluid - D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES - B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL ## Abstract A duct cleaning appliance is adapted for cleaning a ventilation system of a clothes dryer. The duct cleaning appliance includes a hollow duct cleaning tool operatively connected at an open proximal end to a portable airstream appliance adapted for generating a pressurized airflow. An open distal end of the duct cleaning tool is placed over a screen housing opening of the clothes dryer, such that the distal end closely engages the clothes dryer to operatively air-seal the screen housing opening. The portable airstream appliance is then activated to direct the pressurized airflow through the duct cleaning tool, lint exhaust and ventilation system of the clothes dryer, thereby evacuating lint and debris collected inside the ductwork of the ventilation system. ## Claims ### Claim 1 A duct cleaning appliance adapted for cleaning a ventilation system of a clothes dryer, the ventilation system comprising ductwork communicating with a lint exhaust of the clothes dryer and extending to a remote discharge location, said duct cleaning appliance comprising: a portable handheld blower comprising an elongated hollow appliance tube, and a motor configured to generate a positive airflow outwardly through said hollow appliance tube; a hollow duct cleaning tool comprising an open proximal end and an open distal end, the open proximal end configured to removably connect said duct cleaning tool to said hollow appliance tube of said blower, and the open distal end configured to cover and operatively air-seal an entrance of a screen housing opening at the lint exhaust of the clothes dryer without inserting into the screen housing opening; whereby upon locating and operatively air-sealing the open distal end of said duct cleaning tool over the screen housing entrance opening of the clothes dryer and activating said blower, pressurized airflow is generated and directed through said duct cleaning tool and lint exhaust of the clothes dryer, thereby evacuating lint and debris collected inside the ductwork of the ventilation system. ### Claim 2 (depends on 1) The duct cleaning appliance according to claim 1, and comprising an adapter located at the proximal end of said duct cleaning tool and configured to removably attach said duct cleaning tool to said appliance tube of said blower. ### Claim 3 (depends on 1) The duct cleaning appliance according to claim 1, wherein said duct cleaning tool comprises an elongated hollow air transfer tube extending between said blower and the open distal end of said duct cleaning tool. ### Claim 4 (depends on 3) The duct cleaning appliance according to claim 3, wherein the distal end of said duct cleaning tool is arcuately turned relative to a longitudinal axis of said air transfer tube. ### Claim 5 (depends on 1) The duct cleaning appliance according to claim 1, and comprising an exchangeable dryer interface located at the distal end of said duct cleaning tool. ### Claim 6 (depends on 1) The duct cleaning appliance according to claim 1, wherein said blower is configured to generate a flow rate greater than 500 CFM. ### Claim 7 A duct cleaning tool configured for use in combination with a portable airstream appliance to clean a ventilation system of a clothes dryer, the ventilation system comprising ductwork communicating with a lint exhaust of the clothes dryer and extending to a remote discharge location, said duct cleaning tool comprising open proximal and distal ends and an elongated hollow air transfer tube extending between the open proximal and distal ends, and the open proximal end configured to removably connect said duct cleaning tool to the portable airstream appliance, and the open distal end of said duct cleaning tool configured to cover and operatively air-seal an entrance of a screen housing opening at the lint exhaust of the clothes dryer without inserting into the screen housing opening; whereby upon connecting said duct cleaning tool to the portable airstream appliance, locating and operatively air-sealing the open distal end of said duct cleaning tool over the screen housing entrance opening of the clothes dryer, and activating the portable airstream appliance, pressurized airflow is generated and directed through said duct cleaning tool, lint exhaust and ventilation system of the clothes dryer, thereby evacuating lint and debris collected inside the ductwork of the ventilation system. ### Claim 8 (depends on 7) The duct cleaning tool according to claim 7, and comprising an exchangeable dryer interface located at the distal end of said duct cleaning tool. ### Claim 9 (depends on 7) The duct cleaning tool according to claim 7, wherein the distal end of said duct cleaning tool is arcuately turned relative to a longitudinal axis of said air transfer tube. ### Claim 10 (depends on 7) The duct cleaning tool according to claim 7, and comprising an adapter located at the proximal end of said duct cleaning tool and configured to removably attach said duct cleaning tool to the portable airstream appliance.