US 11,744,427 B2
Floor cleaning machine with solid chemical delivery system
Jacob T. Weil, Toledo, OH (US); Thomas J. Quagliotto, Toledo, OH (US); Kyle S. Strait, Holland, MI (US); Keith W. Kennedy, Litchfield, OH (US); and Eric Calhoun, Wyandotte, MI (US)
Assigned to Betco Corporation, Bowling Green, OH (US)
Filed by Jacob T. Weil, Toledo, OH (US); Thomas J. Quagliotto, Toledo, OH (US); Kyle S. Strait, Holland, MI (US); Keith W. Kennedy, Litchfield, OH (US); and Eric Calhoun, Wyandotte, MI (US)
Filed on Nov. 4, 2020, as Appl. No. 17/88,668.
Claims priority of provisional application 62/930,691, filed on Nov. 5, 2019.
Prior Publication US 2021/0127937 A1, May 6, 2021
Int. Cl. A47L 11/40 (2006.01); B01D 19/02 (2006.01); A47L 11/30 (2006.01); A47L 11/28 (2006.01); B01F 21/00 (2022.01); B01F 21/20 (2022.01); B01F 101/00 (2022.01)
CPC A47L 11/4016 (2013.01) [A47L 11/28 (2013.01); A47L 11/30 (2013.01); A47L 11/4011 (2013.01); A47L 11/4083 (2013.01); A47L 11/4088 (2013.01); B01D 19/02 (2013.01); B01F 21/402 (2022.01); B01F 21/20 (2022.01); B01F 2101/4505 (2022.01)] 13 Claims
OG exemplary drawing
 
1. A floor cleaning machine comprising:
a cleaning head configured for cleaning a floor surface;
a solution tank configured as a reservoir for a cleaning solution;
a pre-canister sensor configured to receive the cleaning solution from the solution tank and further configured to measure a concentration of any dissolved solids within the cleaning solution, thereby creating a baseline measurement;
a canister assembly configured to receive a first portion of the cleaning solution from the pre-canister sensor and further configured to dissolve portions of a solid chemical form into the first portion of the cleaning solution thereby forming blended droplets, the canister assembly having a spray nozzle positioned vertically above the solid chemical form; and
a post-canister sensor configured to receive a mixture of a second portion of the cleaning solution from the pre-canister sensor and the blended droplets from the canister assembly, the post-canister sensor configured to measure the concentration of any dissolved solids within the mixture of the second portion of the cleaning solution from the pre-canister sensor and the blended droplets from the canister assembly;
wherein a comparison of a post-canister measurement from the post-canister sensor and the baseline measurement from the pre-canister sensor outside of a desired range results in replacement of the solid chemical form.