Dri-eaz Products, Inc.

Sapphire Scientific, Inc.

Keith Studebaker

Brett Bartholmey

William Bruders

Roy Studebaker

Bill Elmer Richardson

Kevin J Miller

Dennis P Bruders

Sean Aldrich

Roof cleaning processes and associated systems are disclosed. A representative process includes dispensing a cleaning fluid on the roof, at least restricting the cleaning fluid from exiting the roof via a roof drain, and collecting the cleaning fluid from the roof and directing the cleaning fluid to a sanitary sewer. A representative system includes a pump coupleable to a source of water and configured to pressurize the water, a surface cleaner coupled to the pump with a water line to receive pressurized water, a vacuum source coupled to the surface cleaner with a vacuum line to remove wastewater produced by the surface cleaner, and a retainer configured to be removably attached to a building at least proximate to a roof of the building, the retainer being removably coupleable to the vacuum line and the water line to at least restrict movement of the vacuum line and the water line.

Roof cleaning processes and associated systems

A hard surface cleaner having a cleaning head with rotational assist. In one embodiment, the cleaning head includes a housing having a fluid-supply and vacuum inlets. The housing also includes at least one flow-control inlet arranged with the vacuum inlet to draw a flow of air into the housing through the flow-control inlet. The cleaning head further includes a spray assembly at least partially enclosed within the housing. The spray assembly includes a shaft, at least one spray nozzle operably coupled to the shaft, and a plurality of fins also operably coupled to the shaft. The spray nozzle is configured to receive a pressurized fluid from the fluid-supply inlet and to rotate about the shaft by delivering the pressurized fluid toward a floor surface. The fins are positioned at least partially within the flow of air through the flow control inlet to control the rotational speed of the spray assembly.

Hard surface cleaners having cleaning heads with rotational assist, and associated systems, apparatuses and methods

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Tumwater, WA, United States of America

Keith Studebaker