US 12,011,129 B1
Extraction cleaner
Adam Udy, Eastbourne (GB); Chi Ho Hui, London (GB); Jian cheng Wang, Suzhou (CN); Kevin O'Malley, London (GB); Qiang Liu, Suzhou (CN); Yinhui Li, Suzhou (CN); Bin Yao, Suzhou (CN); Linqiang Feng, Suzhou (CN); Mingchun Zhu, Suzhou (CN); Mingliang Qin, Suzhou (CN); and Richard Marc Dahlgren, Plymouth, MA (US)
Assigned to SharkNinja Operating LLC, Needham, MA (US)
Filed by SHARKNINJA OPERATING LLC, Needham, MA (US)
Filed on Jun. 8, 2023, as Appl. No. 18/207,579.
Application 18/207,579 is a continuation of application No. PCT/CN2023/083670, filed on Mar. 24, 2023.
Claims priority of provisional application 63/440,250, filed on Jan. 20, 2023.
Int. Cl. A47L 11/40 (2006.01); A47L 5/22 (2006.01); A47L 9/24 (2006.01); A47L 11/30 (2006.01)
CPC A47L 11/4083 (2013.01) [A47L 5/225 (2013.01); A47L 11/4016 (2013.01); A47L 11/4088 (2013.01); A47L 9/242 (2013.01); A47L 11/302 (2013.01)] 25 Claims
OG exemplary drawing
 
1. An extraction cleaner comprising:
a base;
an upright body pivotally coupled to the base;
at least one base fluid dispensing nozzle coupled to the base, the at least one base fluid dispensing nozzle being configured for distributing a first fluid directly or indirectly onto a surface to be cleaned;
a flexible hose;
a cleaning tool coupled to the flexible hose;
at least one cleaning tool fluid dispensing nozzle coupled to the cleaning tool, the at least one cleaning tool fluid dispensing nozzle configured for distributing a second fluid directly or indirectly onto a target surface;
a supply tank for storing a first cleaning fluid;
an additive tank for storing a second cleaning fluid;
a mixing valve fluidly coupled to the supply tank and the additive tank to receive the first cleaning fluid from the supply tank and the second cleaning fluid from the additive tank; and
at least one fluid changeover valve fluidly coupled to the mixing valve to receive the first cleaning fluid and a mixture of the first cleaning fluid and the second cleaning fluid from the mixing valve, the at least one fluid changeover valve fluidly coupled to the at least one base fluid dispensing nozzle and the at least one cleaning tool fluid dispensing nozzle, the at least one fluid changeover valve having a base supply state wherein the first cleaning fluid is fluidly coupled to the at least one base fluid dispensing nozzle and a cleaning tool supply state wherein the mixture of the first cleaning fluid and the second cleaning fluid is fluidly coupled to the at least one cleaning tool fluid dispensing nozzle,
wherein when the fluid changeover valve is in the base supply state the fluid changeover valve is configured to provide the first cleaning fluid in fluid communication with the at least one base fluid dispensing nozzle and to block the mixture of the first cleaning fluid and the second cleaning fluid from fluid communication with the at least one cleaning tool fluid dispensing nozzle, and when the fluid changeover valve is in the cleaning tool supply state the fluid changeover valve is configured to provide the mixture of the first cleaning fluid and the second cleaning fluid in fluid communication with the at least one cleaning tool fluid dispensing nozzle and block the first cleaning fluid from fluid communication with the at least one base fluid dispensing nozzle.