# US 2014/0150818 A1 · Automatic Photovoltaic Solar Panel Washer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0150818 A1 - Document ID: US20140150818A1 - Status: Published application - Kind: A1 - Application number: 13/914,591 - Filed: 2013-06-10 - Published: 2014-06-05 - Earliest claimed: 2005-06-14 - Assignees: Reuben Chow - Inventors: Reuben H. Chow - Web page: https://patentgrep.com/patent/US20140150818A1 ## CPC - H02S 40/10: Cleaning arrangements - B08B 1/14: Wipes; Absorbent members, e.g. swabs or sponges (with integrated means for dispensing fluids B08B1/40) - B08B 1/16: Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers - B08B 1/30: by movement of cleaning members over a surface - B08B 3/024: {Cleaning by means of spray elements moving over the surface to be cleaned} - B08B 5/02: Cleaning by the force of jets, e.g. blowing-out cavities {(airguns or nozzles per se B05B1/005)} - F24S 40/20: Cleaning; Removing snow - Y02E 10/40: Solar thermal energy, e.g. solar towers - Y02E 10/50: Photovoltaic [PV] energy - H02S: GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES (obtaining electrical energy from radioactive sources G21H1/12; light sensitive inorganic semiconductor devices H10F; light sensitive organic semiconductor devices H10K30/00; thermoelectric devices H10N10/00; pyroelectric devices H10N15/00) - B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL - F24S: SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS (for producing mechanical power from solar energy F03G6/00) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract An Automatic (Auto) Photovoltaic (PV) Solar Panel Washer comprising a main carrier joined by a connecting member to the main mast. A main hydraulic cylinder system comprising one or more hydraulic cylinders and connector arrangement on the main mast raises the main mast up or pushes it down, activating the connecting member, thereby raising or lowering the main carrier. The positioning hydraulic cylinder determines the angle of the main carrier by pushing one end down or bringing it up. A rotating device assembly rotates the main mast and main carrier clockwise or counterclockwise from rest position over its stationary post. The main carrier comprises a rigid frame with attachments including a cleaning assembly consisting of air cylinders with cleaning wiper systems, tracks for the air cylinder shafts, wash material pipes with spray devices attached, rinse material pipes with spray devices attached, and compressed air drying pipes with air spray devices. ## Claims ### Claim 1 An automatic (auto) photovoltaic (PV) solar panel washer comprising: a main carrier joined by a connecting member to a main mast; a main hydraulic cylinder system comprising one or more hydraulic cylinders and connector arrangement on the main mast which controls the raising and lowering of the main carrier; a positioning hydraulic cylinder which controls the angle of the main carrier; a rotating device assembly rotates the main mast and main carrier about the stationary post, from rest position to working position, clockwise or counterclockwise; said main carrier comprising a rigid frame with attachments including a cleaning assembly comprising air cylinders with attached cleaning wipers, tracks for the air cylinder shafts, wash material pipes with spray devices, rinse material pipes with spray devices and compressed air drying pipes with air spray devices. ### Claim 2 (depends on 1) The auto PV solar panel washer according to claim 1, wherein the main carrier has two (2) air cylinders oriented to move cleaning wiper assemblies attached to the ends of the shafts back and forth along the faces or active surfaces of the PV solar panels thereby cleaning the panels of dirt, dust, debris, snow or other material. ### Claim 3 (depends on 1) The auto PV solar panel washer according to claim 1, wherein a plurality of devices selected from wash material pipes, rinse material pipes, spray devices, the compressed air pipes or air spray devices provide washing, rinsing and blow drying of the solar panel surfaces during and after the cleaning cycles. ### Claim 4 (depends on 3) The auto PV solar panel washer according to claim 3, further comprising air pipes are activated for blow drying after cleaning when devices are selected for removal of snow or ice. ### Claim 5 (depends on 1) The auto PV solar panel washer according to claim 1, further comprising a rotating device assembly which rotates the main mast and configures the main carrier from rest position to working position, clockwise or counterclockwise to attain its working position above the tops of a plurality of row or arrays of PV solar panels. ### Claim 6 (depends on 5) The auto PV solar panel washer according to claim 5, wherein the rotating device assembly rotates the main mast and main carrier clockwise or counterclockwise from rest position over its stationary post. ### Claim 7 (depends on 1) The auto PV solar panel washer according to claim 1, wherein the main mast is pushed down or raised up approximately 12-24 inches by one or more hydraulic cylinders and connector arrangement for the main carrier to attain an appropriate distance above the tops of a plurality of rows or arrays of PV solar panels. ### Claim 8 (depends on 1) The auto PV solar panel washer according to claim 1, wherein the positioning of the hydraulic cylinder pushes one end of the main carrier down or raises it up to attain the desired angle of approximately 15-45 degrees above the tops of a plurality of rows or arrays of PV solar panels. ### Claim 9 (depends on 1) The auto PV solar panel washer according to claim 1 further comprising a control panel is positioned on the floor of a mobile wheeled device; said control panel performing automatic controls of the connected mechanisms and systems. ### Claim 10 (depends on 1) The auto PV solar panel washer according to claim 1, further comprising various equipments and prime mover devices which are positioned on the floor of a mobile wheeled device; said devices selected from a group consisting of the main mast, rotating device assembly and stationary post, two (2) water tanks, an electric generator, an air compressor, a hydraulic tank and pump system, a chemical mixing tank or combinations thereof. ### Claim 11 (depends on 1) The auto PV solar panel washer according to claim 1, wherein the main carrier is placed in its rest position on brackets in a pan along the bed of the mobile wheeled device for safety and security when travelling over roads or when the auto PV solar panel washer is not in use. ### Claim 12 (depends on 1) The auto PV solar panel washer according to claim 1, wherein the cleaning wiper system further comprises a mechanical device or assembly; wherein the wiper device is comprised of various materials selected from a group consisting of fabric, rubber, plastic, natural, manmade or a hybrid material, with soft surfaces or other materials whether the material condition is stiff or otherwise. ### Claim 13 (depends on 12) The auto PV solar panel washer according to claim 12 wherein the wiper system is attached at the end of an air cylinder. ### Claim 14 (depends on 10) The auto PV solar panel washer according to claim 10 wherein the materials are attached by various means or the materials are an integral part of the cleaning wiper system; said various means selected from bolting, clamping, cementing, plastic molding or combinations thereof as one piece or various other means. ### Claim 15 (depends on 10) The auto PV solar panel washer according to claim 10 wherein for a cleaning cycle, the device comprises clean water including de-ionized (DI) water and additives including bio-degradable materials for detergent and dust repellent action, through wash material pipes with spray devices attached and rinse material pipes with spray devices attached. ### Claim 16 (depends on 15) The auto PV solar panel washer according to claim 15 wherein cleaning cycle is supplied with compressed air for drying through piping with attached air spray devices. ### Claim 17 (depends on 1) The auto PV solar panel washer according to claim 1, further comprising a mobile wheeled device where the systems are installed; said device is self powered or directly connected to a powered vehicle or powered wheeled device. ### Claim 18 (depends on 16) The auto PV solar panel washer according to claim 16, wherein an operator of the powered wheeled device has a remote control device linked to the control panel for remote control of the equipment and prime mover systems on the mobile wheeled device. ### Claim 19 (depends on 16) The auto PV solar panel washer according to claim 16, wherein an operator has a vertical position laser guide and annunciator to indicate the position of the main carrier and a visual display to observe operations as seen from the movie camera mounted at the rear of the mobile wheeled device. ### Claim 20 A method of protecting auto PV solar panel comprising: spray washing an entire solar panel surface from wash material pipes with attached spray devices; stopping the spray washing after a short interval; activating the cleaning wiper system with each air cylinder working in opposite directions (out-in, out-in) cleaning the panel surfaces; optionally, spray washing the surface with water and a bio-degradable and dust repellent material while the cleaning wiper system is in action; stopping the wiper system after a few strokes by each cylinder with each cylinder fully retracted; spray rinsing the entire panel surface from spray material pipes with attached spray devices; stopping the spray rinsing after a short interval of approximately 4-6 seconds; air drying the panel surface by releasing compressed air from air pipes with air spray attached devices; stopping after a short interval of approximately 4-6 seconds; and applying a bio-degradable dust repellent material as required.