US3715774A - Automatic window washer - Google Patents

Automatic window washer Download PDF

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Publication number
US3715774A
US3715774A US00107957A US3715774DA US3715774A US 3715774 A US3715774 A US 3715774A US 00107957 A US00107957 A US 00107957A US 3715774D A US3715774D A US 3715774DA US 3715774 A US3715774 A US 3715774A
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module
window
span frame
cleaning
building
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Expired - Lifetime
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US00107957A
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English (en)
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R Fannon
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L1/00—Cleaning windows
    • A47L1/02—Power-driven machines or devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
    • A47L2201/06—Control of the cleaning action for autonomous devices; Automatic detection of the surface condition before, during or after cleaning

Definitions

  • An automatic window washer has a module riding in tracks on the face of the building and is controlled from a unit mounted on the roof of the building.
  • a module suspended from the roof of the building rides in tracks on each side of a vertical column of windows and has a washing brush, a drying roller and a squeegee in washing engagement with a curtain wall and windows.
  • a sensor actuates the squeegee at appropriate time and the brush and roller may be moved into and out of engagement with the windows.
  • the present invention may be classified as a machine for brushing, scrubbing and general cleaning with suction and with liquid cleaning material application to work and includes a roof unit running on tracks which may support a span frame moving in tracks on the face of the building with a cleaning module mounted for lateral movement in the span frame.
  • the cleaning module contains nozzles for spraying the surfaces to be cleaned with a cleaning fluid supplied from a reservoir in the module or in the span frame; a squeegee moved into and out of engagement with the surface to be cleaned; a vacuum head adjacent the squeegee removing collected residue to a sump in the module; means in the module for pressurizing the cleaningfluid; means in the module for supplying a vacuum to the head; means in the module for moving the squeegee into and out of operative position; and electric, pneumatic and hydraulic systems for sensing and for sequential operation of the cleaning cycle.
  • Motor means are provided for moving the module in the span frame and various electrically actuated safety features are provided in and from the roof unit.
  • the roof unit, the span frame and the module are so arranged that they may be stored as a unit in any suitable storage area on the building roof.
  • FIG. 1 is a side elevation of the :roof unit, span frame and cleaning module in position to engage the tracks in the face of the building at the beginning of a cleaning run;
  • FIG. 3 is a view from above of the span frame and cleaning module of FIG. 1 in window washingposition
  • FIG. 4 is a side view of the structure of FIG. 3;
  • FIG. 5 is an enlarged side view of the cleaning module and span frame showing certain of the components of the module
  • FIG. 6 is a block diagram of a suitable electric central circuit for the embodiment of FIG. 1;
  • FIG. 7 is a block diagram of a suitable fluidic control system for the cleaning cycle
  • FIG. 8 is a block diagram of a suitable pneumatic control system used in association with the control DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • a building 10 has roof 11 supporting spaced tracks 12 for a wheeled roof unit 13 driven along a track 12 by electric motor 14.
  • Roof unit 13 is of known type and includes a suitably and electrically driven cable drum 15; a boom arm 16 and a driven screw 17 and nut 18 for raising and lowering the boom through link 19.
  • Boom 16 has end sheave 20 rotatably mounted thereon over which cable 21 passes to drum 15.
  • a rack 13. may be provided on unit 13 to receive and support the cleaning module when not in use.
  • Parallel links 22 and 23 are pivoted at 24 and 25, respectively, to upright 26 of roof unit 13 and at their outer ends are pivoted at 27 and 28, respectively to track extensions 29 for span frame 30.
  • Track extensions 29 have removable stops 31 at the top thereof and cable 21 passes through guide 32 on span frame 30 and is secured to span frame 30 at compression spring 33.
  • Span frame 30 carries cleaning module 34.
  • One or more such modules may be used.
  • stops 31 stop further upward movement of the span frame and track extensions 29 then lift on links 22 and 23 and roof unit 13 may then be moved to the next column of windows and tracks or the entire unit may be supported on rack 13' and moved] to storage as in roof garage 35.
  • drum 15 When the span frame and module are in the position shown in FIG. 1, drum 15 may be actuated to unwind cable 21 and span frame 30 and module 34 then move downwardly and span frame 30 engages tracks 36 and 37 spaced horizontally by a plurality of columns of windows and extending vertically up the face of the building, shown in these figures as a curtain front building.
  • span frame 30 has parallel spaced hollow horizontal members 38 and 39 closed at their ends and connected by spaced hollow vertical frame members, the hollow span frame or portion thereof thus formed being ideally suited as a reservoir for the cleaning fluid supplied to module 34 through hose 34".
  • Tubular extensions 42, 43, 44 and 45 extend inwardly toward the building, respectively, from each comer of the span frame 30 and each ends in a clamp 46.
  • An extension 47 is slidably mounted in each of extensions 42-45 and is held in desired position by clamp 46.
  • Each tube 47 ends in hollow T extension slidably receiving support tube 49 which is adjustably mounted therein by through bolts 50.
  • a wheel frame 51 is clamped at 52 to support tube 49.
  • Frame 51 mounts opposed rollers 53 and 54 oppositely engaging the adjacent track 36 or 37.
  • Span frame 30 is therefore mounted at each of its corners on rollers engaging the tracks on the face of the building with adjustments provided to compensate for various horizontal spacings of the tracks and to provide suitable spacing of the span frame from the face of the building.
  • a track 55 is secured beneath and extends the length of member 38 and track 56 is secured above and extends the length of member 39.
  • Cleaning module 34 has oppositely disposed and horizontally spaced pairs of rollers 57 and 58 engaging track 55 and has horizontally spaced wheels 59 and 60 engaging track 56 to support module 34 for horizontal movement in span frame 30.
  • An electric motor 61 drives wheel 59 through belt or chain 62 to provide this movement.
  • cleaning module 34 may be moved in span frame 30 to clean adjacent vertically disposed columns of windows when the span frame spans a plurality of such columns of windows, adjacent windows 63 and 64 being seen in FIG. 3. It is to be understood that any other building surfaces may be cleaned and reference to windows herein is to be construed as including such other surfaces.
  • Cleaning module 34 has, extending therefrom toward the window, a spray hood 65 and a squeegee assembly 66 including an extensible vacuum duct 67 and a squeegee 68.
  • Squeegee assembly 66 and spray hood 65 with its nozzles may be of desired length to suit the widths of the windows being cleaned.
  • Cleaning hood 66 is readily removable from the unit at clamp nut 66' for replacement with a head of suitable size.
  • vacuum duct 67 is connected to sump 69 which receives the residue from squeegee 68.
  • Sump 69 has a removable cover 70 and is drained through valve 71. Vacuum is supplied to duct '67 by blower 72 as will be described more fully hereinafter in connection with the several control ders and pistons will be further discussed hereinafter.
  • a plurality of spaced nozzles 78 are disposed at the bottom of spray hood 65 and extend across module 34 to cover the width of the window with cleaning fluid when actuated. Cleaning fluid is supplied to nozzles 78 under suitable pressure from a reservoir either carried in module 34 or formed by the hollow members of span frame 30 by air pressure supplied by the high pressure compressor 102 to be described hereinafter.
  • squeegee 68 is capable of limited adjusting movements necessary for the cleaning of windows of a curtain wall building.
  • module 34 supports bearings 79' and 80 mounting hollow shaft 81 for rotation.
  • Two identical parallel support arms 131 and 132 support squeegee heads 84 at the outer ends thereof and heads 84 carry squeegees 68 as in the first embodiment, squeegees 68 may be removable for insertion of squeegees of desired length.
  • Vacuum is supplied to heads 84 beneath squeegees 68 through extensible ducts 82 and 83 by blower 85 driven by motor 86 and connected to sump 87 for the used residue.
  • Sump 87 is connected by pipe 88 through rotary joint 79 to hollow shaft 81 and thus to heads 84.
  • Shaft 81 is suitably rotated in counter-clockwise direction as seen in FIG. 10 when the presence of a window is sensed by the control system and squeegee 68 engages the upper edge of the window beneath the overhang and travels downwardly over the window with the downward movement of the module removing the residue from the windows.
  • Cleaning fluid supplied by nozzles 89 is supplied from tank 90 by air pressure supplied by high pressure compressor 91.
  • the control system causes rotation of shaft 81 through 90 in counter-clockwise direction lifting the squeegee off the window and bringing the opposed squeegee assembly into position for subsequent 90 rotation into cleaning position for the next lower window.
  • Module 34 of FIGS. 9 and 10 need not be mounted in a span frame and may have suitable means 34' to engage.
  • the automatic operation of the components of module 34 for window cleaning is controlled by three systems, electric, fluidic and pneumatic.
  • the control of the electric system is from the roof unit 13 through suitable electric cables, which may be incorporated in cable 21, to the module to energize the various motors and circuitry there as indicated in FIG. 6.
  • Low pressure air from a compressor in the module energizes the fluidic control system of FIG. 7 for sensing the position of the module and then sequentially operating valves inthe pneumatic control system of FIG. 8 for energizing in proper sequence the cleaning components in the module.
  • unit master key switch 92 which provides electric current to automatic or manual switch 93, usually set in position for automatic operation.
  • the cleaning cycle is then started by moving a rotary switch 94 to ready position until the module circuit breaker 95 holds.
  • Safety circuit 96 controls the holding of circuit breaker 95. When all conditions imposed by circuit 96 are met such as no over-,
  • rotary switch 94 is moved to down position and the window cleaning cycle is started.
  • Conventional up and down limit switches 97 and 98 associated with cable 21 limit the travel of module 34 in each direction and a control 99 is provided for any portion of the building facade not to be cleaned, here assumed to be the 16th floor where louvres and panels are present.
  • a safety switch is provided in the roof unit circuitry to stop operations in the event of slack in cables 21.
  • An overload switch may be mounted in conjunction with compression springs 33. In the event of overload during upward travel the springs compress abnormally activating the overload switch.
  • circuit breaker 95 When circuit breaker 95 is energized, current is supplied to motors 101 or 86 powering blowers 72 or 85, respectively, to provide vacuum to squeegee head 66 or 84 through duct 67 or 82, driving a high pressure air compressor 101 or 91 in the module supplying the pneumatic system of FIG. 8. Electric current is also supplied to transformer 103 and reduced voltage is then supplied through circuit breaker 104 to compressor and motor 105 supplying low pressure air to the fluidic control system of FIG. 7. Current from transformer 103 is also used for driving motor 61 for indexing module 34in span frame 30 and to actuate solenoid valve 106 which controls the fluidic signal from th start sensor 107.
  • the start and stop sensors 107 and 108 of FIG. 2 are of the opposed jet type and are located on the wheel frame of span frame. 30.
  • a counting or travel wheel 109 is driven over the face of the building as the module descends and actuates counter 110 to which start and stop sensors 107 and 108 are connected.
  • Compressor 105 is connected to and supplies low pres sure air to counter 110 and the other fluidic components.
  • Wheel 109 measures movement in onequarter inch or other desired intervals and furnishes impulses to counter 110 for start sequence counter, stop sequence counter and emergency reset.
  • start sensor 107 will determine the beginning of a window and will spray nozzles 78 to sense a continuous smooth surface such as a window. If the sensor indicates no window then counter 110 automatically resets or will not start counting.
  • counter 110-then provides a signal properly setting the 113/119 flip-flop circuit to furnish low pressure air through line A to pressure booster 114 in the pneumatic control system of FIG. 8 to open valve 115 and to supply cleaning fluid under pressure to nozzle 78. Nozzles 78 then cover the.
  • Counter continues to count and at preset time supplies a signal to properly set 116/120 flip-flop circuit to furnish low pressure air through line C and booster 117 (FIG. 8) opens cleaning head valve and energizes cylinder 73 to move squeegee 68 into window cleaning and engaging position just beneath the upper window seal, vacuum in head 67 removing residue collected by the squeegee.
  • Counter 110 stops counting and cleaning continues.
  • stop sensor 108 detects the starting mullion slot counting again begins and at a preset time provides a signal to reset the 113/119 flip-flop circuit thereby withdrawing the signal to spray booster 114 allowing the spring-loaded valve to close stopping the spray.
  • the counter provides a signal to reset the 116/120 flip-flop circuit thereby stopping the low pressure air to the cleaning head booster 117 allowing the spring-loaded valve 118 to return to its off position which furnishes high pressure air to the opposite side of piston 74 in cylinder 73 which retracts the cleaning head 66.
  • Resetting of the 1 16/120 flip-flop circuit automatically activates the reset circuit 121 which resets the counter 110 for cleaning of the next window.
  • All boosters are provided with high pressure air from compressor 102 as shown at left center of FIG. 8.
  • low pressure responsive device of safety circuit 96 energizes emergency stop 123 and outward movement of cleaning head 66 is stopped.
  • Pneumatic electric switch 124 is also actuated and through suitable electric cables either separate or incorporated in cables 21, line 15 opens circuit breaker 95. If the high pressure air for the pneumatic control system fails this failure is determined by pressure responsive device 125 which acts through emergency stop 123 to prevent outward movement of the cleaning head and through switch 124 to open circuit breaker 95
  • a lever or cam actuated window over travel valve 126 may also be provided in case cleaning head 66 is not withdrawn at appropriate time from the window.
  • Valve 126 then supplies low pressure air to valve 127 and through line G and booster 128 (FIG. 8) to emergency retract valve 129 which actuates cleaning head emergency retract cylinder 77 to retract cleaning head
  • Suitable pressure regulators and air filters may be provided in the systems of FIGS. 7 and 8 as required.
  • An automatic window washer for buildings having a mobile supporting unit on the roof of the building, at least one cleaning module, nozzles in said module for spraying cleaning fluid on the windows, means in said module for supplying cleaning fluid under pressure to said nozzles, a squeegee in said module above said nozzles, means in said module for moving said squeegee into and out of engagement with a window being cleaned, vacuum means in said module cooperating with said squeegee for removing residue therefrom, means in said module for supplying high pressure air, means in said module for supplying low pressure air, a span frame, means for moving said module laterally in said span frame, means on said span frame engaging vertical tracks on the building disposed adjacent the windows to be washed, resilient nomextensible means extending from said span frame to the roof unit for positioning said module adjacent a window to be washed, electric control means energized from the roof unit for energizing said means for supplying cleaning fluid, said vacuum means, said means for moving said module laterally in said span frame and
  • said fluidic control means including a counter having a start position connected to said means for supplying low pressure air, said start sensor starting said counter and connecting said means for supplying cleaning fluid to said nozzles, said counter after a predetermined interval actuating said pneumatic control means and moving said squeegee into engagement with a window.
  • An automatic window washer as described in claim 2 said counter including a wheel travelling on the face of the building and actuating said counter a predetermined linear distances on the face of the building.
  • said fluidic control means including a surface discriminator and a delay associated therewith, said surface discriminator preventing actuation of .said fluidic control means should said start sensor erroneously start said counter.
  • said fluidic control means including a cam actuated window over travel valve actuating said means for moving said squeegee out of window engagement when said squeegee at appropriate time is not otherwise moved out of window engagement.
  • An automatic window washer as described in claim 1 including parallel links pivoted on and extending from the roof unit and spaced parallel track extensions pivotally mounted on said links away from the roof unit, said track extensions forming extensions of the vertical tracks on the building and receiving said span frame and said module when said span frame is raised above the tracks on the building.
  • said electric control means including overload responsive means inactivating said electric control means upon overload of said resilient non-extensible means.
  • An automatic window cleaner for buildings having a mobile supporting unit on the roof of the building, at least one cleaning module, at least one means in said cleaning module for window cleaning, an open rectangular span frame, said module being capable of lateral movement in the opening of said span frame, means on said span frame engaging vertical tracks on the building disposed adjacent the windows to be cleaned, resilient non-extensible means extending from said span frame to the roof unit for positioning said span frame adjacent to at least one window to be cleaned and means for energizing said window cleaning means.
  • An automatic window cleaner for buildings having a mobile supporting unit on the roof of the building, at least one cleaning module, means in said cleaning module for window cleaning, an open rectangular span frame, said module being mounted in the opening of said span frame, means on said span frame engaging vertical tracks on the building disposed adjacent the windows to be cleaned, resilient non-extensible means extending from said span frame to the roof unit for positioning said span frame adjacent to at least one window to be cleaned and means energized from the roof unit for energizing said window cleaning means.
  • An automatic window cleaner for buildings having a mobile supporting unit on the roof of the building, at least one cleaning module, at least one means in said cleaning module for window cleaning, an open rectangular span frame, means for moving said module laterally in the opening of said span frame, means on said span frame engaging vertical tracks on the building disposed adjacent to the windows to be washed, resilient non-extensible means extending from said span frame to the roof unit for positioning said span frame and said module adjacent to at least one window to be cleaned and means for energizing said window cleaning means and said means for moving said module laterally in said span frame.
  • said means on said span frame engaging vertical tracks on the building including at least one corner of said span frame an adjustable support and guiding

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Wing Frames And Configurations (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
US00107957A 1971-01-20 1971-01-20 Automatic window washer Expired - Lifetime US3715774A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10795771A 1971-01-20 1971-01-20
US00256609A US3803656A (en) 1971-01-20 1972-05-24 Automatic window washer

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US3715774A true US3715774A (en) 1973-02-13

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US00107957A Expired - Lifetime US3715774A (en) 1971-01-20 1971-01-20 Automatic window washer
US00256609A Expired - Lifetime US3803656A (en) 1971-01-20 1972-05-24 Automatic window washer

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US00256609A Expired - Lifetime US3803656A (en) 1971-01-20 1972-05-24 Automatic window washer

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US (2) US3715774A (enExample)
AU (1) AU457984B2 (enExample)
BE (1) BE778283A (enExample)
DE (1) DE2202713C3 (enExample)
FR (1) FR2122452B1 (enExample)
GB (2) GB1382642A (enExample)
SE (2) SE383253B (enExample)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999242A (en) * 1974-02-27 1976-12-28 Mitsubishi Denki Kabushiki Kaisha Cleaning apparatus
EP0067536A1 (en) * 1981-05-20 1982-12-22 Monsanto Company Mass polymerization process for ABS polyblends
US5249326A (en) * 1989-04-05 1993-10-05 Jefferies James E Apparatus and method for washing exterior building surfaces
US5485645A (en) * 1993-10-20 1996-01-23 Nihon Biso Co., Ltd. Outer wall cleaning robot
US5594973A (en) * 1993-01-12 1997-01-21 Solvay (Societe Anonyme) Device for cleaning the wall of a silo
USRE36649E (en) * 1989-04-05 2000-04-11 Sky Robotics, Inc. Apparatus and method for washing exterior building surfaces
US7104220B1 (en) * 2004-06-04 2006-09-12 Jerome Mack Overhead livestock enclosure washing system
US20090266353A1 (en) * 2008-04-24 2009-10-29 Hon Hai Precision Industry Co., Ltd. Automatic cleaning system for solar panels and method thereof
KR101362182B1 (ko) * 2012-03-21 2014-02-13 한국건설기술연구원 연직한 연장레일을 구비한 크레인장치를 이용한 청소로봇 조립체의 요동방지 설치구조를 가지는 건물 외벽면 청소장치 및 이를 이용한 건물 외벽면의 청소방법
WO2017042729A1 (en) * 2016-06-24 2017-03-16 Universidad Tecnológica De Panamá Wall-painting machine
US10550591B2 (en) 2004-11-05 2020-02-04 Pachanga Holdings, Llc Method for cleaning surfaces

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2429838C3 (de) * 1974-06-21 1981-07-09 Maasberg, Wolfgang, 4224 Hünxe Vorrichtung zum Reinigen von Bordwänden, im wesentlichen vertikalen Behälterwänden o.dgl. Flächen aus ferromagnetischem Werkstoff
US4136419A (en) * 1977-05-02 1979-01-30 Alpana Aluminum Products, Inc. Apparatus for cleaning a column of windows and wall surfaces of a building
DE3229720A1 (de) * 1982-08-10 1984-02-16 Paul 4740 Oelde Hammelmann Hydrodynamische reinigungsvorrichtung vorzugsweise fuer schiffsaussenwaende
GB2145927A (en) * 1983-09-05 1985-04-11 Robert Maclean Automatic window cleaning machine
DE3439457A1 (de) * 1984-10-27 1986-05-07 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Hochdruckwasserreinigung
JPH0728838B2 (ja) * 1989-05-25 1995-04-05 日本ビソー株式会社 ガラス清掃装置及びその制御方法
IL101007A (en) * 1992-02-18 1997-08-14 Pharmos Ltd Dry stable compositions prepared by lyophilization
US5699576A (en) * 1995-04-07 1997-12-23 Robert S. Tomko Exterior window cleaning apparatus
US5890250A (en) * 1996-02-02 1999-04-06 Sky Robitics, Inc. Robotic washing apparatus
JP3641064B2 (ja) * 1996-03-25 2005-04-20 日本ビソー株式会社 建築物の外壁作業機の吊り下げ支持装置
JPH09256626A (ja) * 1996-03-25 1997-09-30 Nihon Bisoh Co Ltd 建築物の外壁作業機の吊り下げ支持装置
JPH09256627A (ja) * 1996-03-25 1997-09-30 Nihon Bisoh Co Ltd 揺動アーム機構におけるロープ部材の配索経路長調整機構及びそれを用いた建築物の外壁作業機の吊り下げ支持装置
US7895691B2 (en) * 2008-03-21 2011-03-01 Go Mama Go Designs Llc Individual crib bumper (rolley poleys)
DE102010014789A1 (de) * 2010-04-13 2011-10-13 Solar Power Group Gmbh Solaranlage mit Transporteinrichtung
CN104210499A (zh) * 2014-08-20 2014-12-17 平湖普英特高层设备有限公司 运行手动机构
CN112842124B (zh) * 2020-12-30 2022-02-08 美晟通科技(苏州)有限公司 一种用于玻璃幕墙的表面滚刷机构及其工作方法
CA3233126A1 (en) * 2021-09-24 2023-03-30 Marko LEPOVIC Cleaning system for an external surface of a building

Citations (4)

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US3218663A (en) * 1963-07-24 1965-11-23 Battista Joseph Automatic washing device
US3344454A (en) * 1966-02-18 1967-10-03 Mikalson Severine Albert Remote controlled window washer for high rise buildings
GB1165082A (en) * 1967-04-19 1969-09-24 William Banes Device for the Cleaning of Windows and the Outside of Buildings
US3497902A (en) * 1968-10-04 1970-03-03 John Hartigan Building cleaning apparatus

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US3604049A (en) * 1969-03-17 1971-09-14 Alpana Aluminum Prod Squeegee vacuum pickup unit for mobile window washer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3218663A (en) * 1963-07-24 1965-11-23 Battista Joseph Automatic washing device
US3344454A (en) * 1966-02-18 1967-10-03 Mikalson Severine Albert Remote controlled window washer for high rise buildings
GB1165082A (en) * 1967-04-19 1969-09-24 William Banes Device for the Cleaning of Windows and the Outside of Buildings
US3497902A (en) * 1968-10-04 1970-03-03 John Hartigan Building cleaning apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999242A (en) * 1974-02-27 1976-12-28 Mitsubishi Denki Kabushiki Kaisha Cleaning apparatus
EP0067536A1 (en) * 1981-05-20 1982-12-22 Monsanto Company Mass polymerization process for ABS polyblends
US5249326A (en) * 1989-04-05 1993-10-05 Jefferies James E Apparatus and method for washing exterior building surfaces
USRE36649E (en) * 1989-04-05 2000-04-11 Sky Robotics, Inc. Apparatus and method for washing exterior building surfaces
US5594973A (en) * 1993-01-12 1997-01-21 Solvay (Societe Anonyme) Device for cleaning the wall of a silo
US5485645A (en) * 1993-10-20 1996-01-23 Nihon Biso Co., Ltd. Outer wall cleaning robot
US7104220B1 (en) * 2004-06-04 2006-09-12 Jerome Mack Overhead livestock enclosure washing system
US10550591B2 (en) 2004-11-05 2020-02-04 Pachanga Holdings, Llc Method for cleaning surfaces
US20090266353A1 (en) * 2008-04-24 2009-10-29 Hon Hai Precision Industry Co., Ltd. Automatic cleaning system for solar panels and method thereof
US8323421B2 (en) * 2008-04-24 2012-12-04 Hon Hai Precision Industry Co., Ltd. Automatic cleaning system for solar panels and method thereof
KR101362182B1 (ko) * 2012-03-21 2014-02-13 한국건설기술연구원 연직한 연장레일을 구비한 크레인장치를 이용한 청소로봇 조립체의 요동방지 설치구조를 가지는 건물 외벽면 청소장치 및 이를 이용한 건물 외벽면의 청소방법
WO2017042729A1 (en) * 2016-06-24 2017-03-16 Universidad Tecnológica De Panamá Wall-painting machine

Also Published As

Publication number Publication date
DE2202713B2 (de) 1975-04-24
DE2202713C3 (de) 1975-12-11
FR2122452B1 (enExample) 1976-07-23
BE778283A (fr) 1972-05-16
AU457984B2 (en) 1975-02-13
AU3764972A (en) 1973-07-12
DE2202713A1 (de) 1972-08-03
SE7415265L (enExample) 1974-12-05
US3803656A (en) 1974-04-16
GB1382641A (en) 1975-02-05
SE383253B (sv) 1976-03-08
GB1382642A (en) 1975-02-05
FR2122452A1 (enExample) 1972-09-01

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