Patent ID: 9402523
Filing Date: 2016-08-02
CPC Classification: A47L

Claim Text:
1. A rotary surface cleaning machine, comprising: a rotary surface cleaning tool coupled for high speed rotary motion relative to a frame member and further comprising a substantially circular operational surface; a high speed rotary driving means coupled for driving a high speed rotary motion of the rotary surface cleaning tool; a plurality of individual arrays of cleaning solution delivery spray nozzles being substantially uniformly angularly distributed across the operational surface of the rotary surface cleaning tool, the arrays of spray nozzles being coupled in fluid communication with a pressurized flow of cleaning fluid through a plurality of individual liquid cleaning fluid distribution channels of a cleaning fluid distribution manifold portion of the rotary surface cleaning tool; and a plurality of suction extraction shoes being substantially uniformly angularly distributed across the operational surface of the rotary surface cleaning tool alternately between the arrays of cleaning solution delivery spray nozzles and being projected from the operational surface of the rotary surface cleaning tool by a biasing means structured for individually biasing each suction extraction shoe outwardly relative to bottom operational surface of the rotary surface cleaning tool, and each of the suction extraction shoes further comprising a fluid extraction passage presented adjacent to the operational surface of the rotary surface cleaning tool and oriented substantially radially of the operational surface of the rotary surface cleaning tool, each of the fluid extraction passages communicating through one of a plurality of plenum branch passages with a vacuum plenum that is in fluid communication with a vacuum suction source, and wherein an operational surface of each suction extraction shoe further comprises a plurality of suction relief grooves formed thereacross and oriented crosswise of the fluid extraction passage thereof.