A system for cleaning solar panels, the system comprising: a mobile assembly for cleaning solar panels, where the mobile assembly is movable over cover surface of the solar panels, a stationary assembly for moving the mobile assembly, where the stationary assembly is fixed relative the solar panels; a water feeding assembly for feeding water to the mobile assembly, the water feeding assembly connects to and is in fluid communication with the mobile assembly; and a control and command cabinet for controlling operation of the mobile assembly, stationary assembly and water feeding assembly, where the stationary assembly connects mechanically to the mobile assembly and is configured to travel the mobile assembly over the cover surface of the solar panels according to commands delivered from the control and command cabinet.

In accordance with the present invention, a panel cleaning method is provided. In one aspect, the panel cleaning system includes a storage tank containing pressurized air, first and second linear actuators, and a panel-cleaning device wherein the pressurized air contained in the storage tank operates the first and second actuators and the panel-cleaning device to clean PV panels. A further aspect includes sensors associated with the first and second actuators and panel-cleaning device and configured to scan and detect fluid and debris on the PV panels to be removed. Another aspect provides sensors associated with a panel cleaning system and a programmable controller or processor configured to execute instructions stored in a nontransitory computer-readable medium.

Methods, systems, and apparatus for a biofouling removal tool. The tool can include a body having a top surface, a bottom surface, and multiple sections. The tool can also include a plurality of recesses formed in the body. In some implementations, the plurality of recesses include a first set of one or more recesses formed in a first section of the body of the tool and a second set of one or more recesses formed in a second section of the body tool. At least one of the plurality of recesses spans a height of the body. Each of the plurality of recesses is configured to accept an outer surface of a cylindrical object. Each of the plurality of recesses includes one or more edges configured to scrape an outer surface of a cylindrical object.

A slurry iron remover includes a tank body configured to contain slurry; a magnetic bar disposed in the tank body, where the magnetic bar is configured to absorb iron particles in the slurry; and a cleaning column ring disposed in the tank body and surrounding the magnetic bar, where the cleaning column ring is fitted to an outer surface of the magnetic bar and an inner surface of the tank body respectively, and the cleaning column ring is configured to move along an axial direction of the magnetic bar after the slurry is discharged from the tank body to clean the tank body and the magnetic bar.

A slurry iron remover includes a tank body configured to contain slurry; a magnetic bar disposed in the tank body, where the magnetic bar is configured to absorb iron particles in the slurry; and a cleaning column ring disposed in the tank body and surrounding the magnetic bar, where the cleaning column ring is fitted to an outer surface of the magnetic bar and an inner surface of the tank body respectively, and the cleaning column ring is configured to move along an axial direction of the magnetic bar after the slurry is discharged from the tank body to clean the tank body and the magnetic bar.

Devices and methods are provided for removing wax from surfaces, such as the exterior surfaces of surfboards. The devices are configured to be sufficiently stiff remove hardened wax, while being soft and pliable enough to avoid scratching or otherwise damaging the underlying surfaces, and to permit the devices to conform to contours and curves on the surfaces.

A cleaning unit for a sensor with a sensor housing and a drive shaft comprises a holding element which extends along an axis and is suitable for being mounted on the drive shaft so that the cleaning unit can be moved by the drive shaft and a wiper element which is fastened to the holding element and has a ring which axially surrounds the holding element, so that the ring is in contact with the sensor housing of the sensor when the holding element is mounted on the drive shaft, wherein the ring has at least one tooth which extends radially to the axis.

A connector cleaner having an elongate portion of material extending from a first end portion to a second end portion; a first paddle element extending from the first end portion, and wherein at least a portion of a first side surface of the first paddle element includes an abrasive element or portion; a second paddle element extending from the first end portion, wherein at least a portion of a first side surface of the second paddle element includes an abrasive element or portion, and wherein the first side surface of the first paddle element is positioned adjacent the first side surface of the second paddle element; and a singular paddle element extending from the second end portion of the elongate portion of material, and wherein at least a portion of a first side surface of the singular paddle element includes an abrasive element or portion.

A system for cleaning a media transport device includes a cleaning substrate sized and configured to fit within at least a portion of a media travel pathway of the transport device. The cleaning substrate includes scarifying holes that scrape debris from media conveyors (belts and/or rollers) of the transport device. Cleaning the transport device may include positioning the cleaning substrate in the section while operating the transport device, or moving the substrate so that the scarifying holes contact the cleaning substrate and clean the belts and/or rollers.