US20040194237A1 - Underwater cleaning apparatus using suction grip - Google Patents
Underwater cleaning apparatus using suction grip Download PDFInfo
- Publication number
- US20040194237A1 US20040194237A1 US10/406,089 US40608903A US2004194237A1 US 20040194237 A1 US20040194237 A1 US 20040194237A1 US 40608903 A US40608903 A US 40608903A US 2004194237 A1 US2004194237 A1 US 2004194237A1
- Authority
- US
- United States
- Prior art keywords
- brush
- housing
- cleaning
- underwater surfaces
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/14—Parts, details or accessories not otherwise provided for
- E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
- E04H4/1654—Self-propelled cleaners
- E04H4/1663—Self-propelled cleaners the propulsion resulting from an intermittent interruption of the waterflow through the cleaner
Definitions
- the brush is housed within a bell shaped frame, the open end of which faces the surface to be cleaned.
- a tube Leading from the bell is a tube which connects to an exhaust pump.
- the exhaust pump pulls water from the bell and water enters the bell from near the surface to be cleaned. The effect is for the bell to move towards the surface.
- the pressure of the brush on the surface, needed for cleaning is provided by the suction action of the exhaust motor.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning In General (AREA)
Abstract
A rotating or oscillating brush is brought up against an underwater surface to be cleaned. The surface may be the hull of a boat or inside walls of an aquarium. While the brush moves, the apparatus is held against the surface by suction. There is a suction pump which pumps water from the apparatus to above ground or elsewhere. The suction creates force of the apparatus against the surface for good cleaning. It is ordinarily difficult to get good force against the surface since the water may be deep and there is nothing for the operator or the apparatus to push against. Debris from cleaning is drawn away from the cleaning area. Wheels or pads or a rubber skirt are used to avoid damaging the surface from too much force. A flexible skirt minimizes water leakage past the apparatus and allows conformation to rounded shapes such as boat hull. The motor to drive the brush may be electric, or may be hydraulic, or may use the suction pressure as a source of energy. The suction pump may be separate or may be driven by the same motor driving the brush.
Description
- A rotating or oscillating brush is brought up against an underwater surface to be cleaned. The surface may be the hull of a boat or inside walls of an aquariurm While the brush moves, the apparatus is held against the surface by suction. There is a suction pump which pumps water from the apparatus to above ground or elsewhere. The suction creates force of the apparatus against the surface for good cleaning. It is ordinarily difficult to get good force against the surface since the water may be deep and there is nothing for the operator or the apparatus to push against. Debris from cleaning is drawn away from the cleaning area. Wheels or pads or a rubber skirt are used to avoid damaging the surface from too much force. A flexible skirt minimizes water leakage past the apparatus and allows conformation to rounded shapes such as boat hull The motor to drive the brush may be electric, or may be hydraulic, or may use the suction pressure as a source of energy. The suction pump may be separate or may be driven by the same motor driving the brush.
- Further, the subject system cleans underwater objects such as the bottoms of boats and the sides of aquariums. There is a rotating brush, powered by a motor. Both may rotate on the same shaft, or there may be an intervening gear box to optimize the relative speeds of the two. The brush rotates against the surface to be cleaned, or as an alternative is an oscillating brush.
- The brush is housed within a bell shaped frame, the open end of which faces the surface to be cleaned. Leading from the bell is a tube which connects to an exhaust pump. The exhaust pump pulls water from the bell and water enters the bell from near the surface to be cleaned. The effect is for the bell to move towards the surface. Thus the pressure of the brush on the surface, needed for cleaning, is provided by the suction action of the exhaust motor.
- The motor driving the brush in one form is electrical and capable of operating under water. It may be of the type used for electric propulsion of small boats for fishing when doing what is known as trolling. The motor uses a safe low voltage, 12 volts or 24, so there is no shock hazard.
- In a convenient form, it is powered from a battery attached to the motor. An operator using the equipment underwater controls the motor brush and propeller speed through controls on the motor assembly, or by communication by either wire or radio to the above water power source. The motion of the cleaning brush may be rotary, or may be linear, with a reciprocating motion.
- To avoid excessive pressure of the apparatus against the surface, which hinders lateral motion, there are pressure release flaps on the sides of the bell.
- An alternative configuration is to use a roller rather than a circular brush, with an abrasive surface, resembling an upright vacuum cleaner.
- Underwater surfaces pick up a variety of undesired plant and animal growths, including barnacles. These growths slow down a boat, obscure viewing through aquarium windows, and cause water pollution. Some harbors have stringent pollution laws which prohibit debris from the surface of the boat hull from entering the harbor waters.
- Cleaning is most typically by mechanical scrubbing. Pressure against the surface plus scrubbing motion is needed. Pressure against an underwater surface is sometimes difficult because there is no convenient floor to push against. Pushing from the dock side is awkward and is necessarily done at the adverse end of a long lever arm.
- There have been many efforts to make easy underwater cleaning of boats, and cleaning of aquarium walls. See reference 2. Some have put brushes on long handles, with a bend in the handle to adapt to boat hull curvature. Other efforts have been to use a flow of water through a turbine or impeller to dive a rotating brush under water. The rotating brush provides some of the necessary scrubbing action. There is still a problem of applying adequate pressure. In another system a jet of water squirts or jets away from the surface, applying pressure towards the surface. One problem with this jet system is that, as the brush is moved to lower depths, perhaps four to ten feet down, the ambient water pressure increases, and there is back pressure, so that the brush rotates more slowly. The reactive jet water flow squirting pressure is reduced, frequently rendering the system unsatisfactory. Another way to get pressure towards the surface is to use a venturi effect to cause suction against the surface, but this is also unsatisfactory owing to the back pressure increasing with depth, and with flat surfaces, not cylindrical the venturi effect is very weak. Further, the jet action stirs the water, causing opacity of the water, and spreading the waste products.
- 1. Application Ser. No. 09/659,407 by Charles Walton, (Docket ID 146) for pond and aquarium underwater surfaces cleaning.
- 2. Patent references: There were 19 patents cited with regard to the above application, q.v. The list is attached.
- 3. Application Ser. No. 110/340774 (Docket ID151 by Charles Walton) shows a propeller system to provide pressure to bring together the surface and the rotating or moving brush.
- FIG. 1. Underwater cleaning system using an electric motor to drive the brush, with a separate suction pump to draw water from a bell shape housing surrounding the brush.
- FIG. 2. Cleaning system using an electric motor to drive the brush, and the same motor to drive a suction pump inside the unit, and provisions for moving the brush towards or away from the surface, and a speed change system.
- FIG. 3. Cleaning system in which the flow induced by a separate suction pump also powers the brush.
- FIG. 4. Underwater Cleaning system using an abrasive roller and a suction pump.
- Refer to FIG. 1. There is a bell, or yoke,10 with its open end brought against the
surface 12. Thesurface 12 carries some unwanted material 14, such as algae, barnacles, snails, or mud. Thebell 10 also supports abearing 16, withshaft 18 carryingbrush 20. The other end ofshaft 18 is driven bymotor 22. Onbrush 20 are multiple scrubbing bristles 24. Thebell 10 is held a short distance away fromsurface 12 bymultiple wheels 26, mounted on thelips 28 ofbell 10. In lieu ofwheels 26 thebell lips 28 may carry a non scratching protection, such as a rubber lip. Thelip 28 also supports askirt 32 or flange.Skirt 32 constrains the flow of water,described later, between thebell 10 andsurface 12 and maximizes the suction effect, to be described later. - There is an
external suction pump 38, which may be above or below the water level. Whensuction pump 38 is operating, water flows as follows. Water enters under theflexible skirt 32. It next flows under thebell tips 28, and through holes inbrush 20, and around the outside ofbrush 20. Water flows throughholes 34 in thebell 10 andtube 36.Tube 36 in turn is connected to thesuction pump 38. Whenpump 38 operates the flow is as described and water is drawn from the bell and is exited to another location fromnozzle 40, along with the debris 14 scrubbed free bybrush 20. - Refer next to FIG. 2. In this figure new members are introduced, namely a local (bell mounted)
suction impeller 82, a gearbox speed changer 78, and an axial slip drive allowing axial brush motion while still delivering rotating power to the brush The primary elements of FIG. 1 are repeated, namely thebrush 20, bristles 24,tips 28,skirt 32, andmotor 22. Thebell 50 carries more members thanbell 10. There is a fluidpermeable plate 52 which supportsshaft 18 withbearing 54.Bearing 54 supports the brush, and has the additional capability of allowing axial travel of the brush The purpose of axial travel is given later. -
Shaft 18 is driven rotationally from a power coupling unit formed ofhousing 56 andfollower 58.Housing 56 is driven byshaft 60, to be discussed later.Housing 56 drives the rotation offollower 58 in the following manner. There are matching slots in bothhousing 56 andfollower 58. Riding in the matching slots there are rectangular strips, known as splines, between thehousing 56 andfollower 58. The spline mechanism is known in the art and the splines are not shown. The result is one to one coupling in rotation, yetfollower 58 can move axially while this rotation occurs.Follower 58,shaft 18,brush 20, all move together axially, while being driven rotationally byhousing 56 andshaft 60. - To move the
brush 20 andfollower 58 axially, there is a dualwasher plate element 62, attached rigidly toshaft 18. Acontrol bar 64 fits between the washer plates. Thebar 64 applies pressure toelement 62 to move it axially, while still allowingshaft 18 to rotate. Thus the pressure ofbrush 20 againstsurface 12 is controlled.Spring 66, which has provisions for adjustable tension not shown, also applies force to bar 64, to control the brush pressure.Bar 64 pivots onpoint 68 so that pressure by an operator on the remote end ofbar 64 will also control pressure of thebrush 20 againstsurface 12. - Axial travel of the brush allows adjustment of the pressure of the brush against the
surface 12. This adjustment is important in several ways. The pressure need will vary according to the stubbornness of film 14, and according to wear of thebristles 24, and the degree of flex of theskirt 32. Further, if the operator wishes to break the pressure of the brush against the surface, added axial extension lifts theskirt 32 higher and the pressure towards the surface is brought to practically zero. - Brush pressure adjustment is convenient for situations where the apparatus is be moved from one working area to another. The operator applies sufficient brush pressure to lift the bell, fully releasing the suction, making movement easy. Further, when the apparatus is pointed in the direction of motion, the suction effect make propulsion to a new area more easy. Changes in brush pressure are also helpful and needed when dealing with curving portions of a boat hull.
- On the other end of
shaft 60 is a second support bearing 72.Bearing 72 is carried by a waterpermeable structure 74. Water passes freely through 74 viamultiple holes 76.Shaft 60 is also the output shaft ofspeed changer 78.Speed changer 78 is most typically of the form of a double gear pass, examples of which are found in swimming pool cleaners to drive the wheels, and is depicted in more detail in reference 1 of this application. - The input shaft of the
speed changer 78 isdrive shaft 80.Shaft 80 is driven by and supported by the output ofimpeller 82.Impeller 82 is the rotating part of a water pump formed ofimpeller 82,housing 50, andexit point 84. The input end ofimpeller 82 is supported byshaft 80 extending intobearing 86. The further extension ofshaft 80 is intodrive motor 22. Drivemotor 22 rotatesimpeller 82 which then pumps water frombell 50 tooutput pipe 88 and to theexhaust motor 90. - Water is thus drawn from the
underwater surface 12 into thebell 50 at its open end, passinglips 28, and exits viaexhaust pump 90 fromexhaust point 92. Water is moved in this direction from one or both pump 90 and the pump formed ofmotor 22 andimpeller 82. - The RPM of the pump formed of
motor 22 andimpeller 82 is relatively high for good pumping action, whereas scrubbing action typically needs less speed but more torque, hence thespeed changer 78 optimizes both speeds and torque. An alternative to speedchanger 78 is to use a separate motor for pumping and for brushing. - For the below water electric motor, power cables, not shown, are brought from above water and are attached to the exhaust hose, forming an umbilicus to the apparatus.
- Refer next to FIG. 3. This configuration has the advantage of not requiring an underwater electric motor. The primary elements of FIG. 1 repeat, namely the
brush 20,tips 28,skirt 32, and the same general flow of water fromskirts 32 to exhaust 92. - There is the same flow of water into the
bell 100 from thesurface 12. The source of rotary power is different. There is arotor 106 bearing panels or vanes similar to the vanes on a water wheel or water turbine. The rotor is supported bybearings shaft 18. The water passes throughbrush 20 as in the previous figures. As the water exits frombrush 20 it is constrained by surface 101 to flow throughguide pipes nozzles 110 and 112.Nozzles 110 and 112 drivevaned rotor 106, in the manner of a water turbine.Vaned rotor 106 drives thebrush 20 for the desired cleaning action. Fromrotor 106 the water exits viapipes pipe 88 andexhaust pump 90 andexhaust nozzle 92. - The
brush 20 in FIG. 3 has added vanes, giving it both a propeller type action and rotary pump action, both increasing the water flow from thesurface 12 and increasing debris 14 flow through thebrush 20 to theexhaust 92, and also increasing the suction pressure upon thesurface 12. - The rotary motion of the
brush 20 gives rotary direction to the water flow. To cooperate with this rotary action, theflow elements nozzles 110 and 112, are tilted in the direction of the rotary action of thebrush 20 androtor 106. With the tilt the water impinges upon thevaned rotor 106 with increased velocity, with consequent performance improvement. - Nozzle110 is oriented to drive the turbine blades on
turbine 106 toward the viewer, indicated by a circle with a dot inside, representing the front end of an arrow.Nozzle 112 is oriented to drive the turbine blades away from the viewer, indicated by a circle with a cross inside, representing the rear end of an arrow. -
Shaft 18 has freedom to move axially throughbearings brush 20 to surface 12 can be adjusted axially, and the pressure of the brush againstsurface 12 can be adjusted, typically by applying pressure to the external end ofshaft 18.Shaft 18 is moved axially in the manner shown in FIG. 2. This dual washer structure is not repeated in FIG. 3. Under certain conditions and proportions of brush area, horse power, impeller size, orifice size, and viscosity, the optimum RPM of the brush is not the same as the optimum RPM of the pumps or impellers. In such a case, the remedy is a speed changing gear box between the impeller and brush - Refer next to FIG. 4. In this system the
rotary brush 20 is replaced by aroller brush 124, in the form of a cylinder bearing bristles or similar abrasive surface. The power drive is amotor 122 using apower transfer belt 126. Thehousing 120 is rectangular in shape and is modified from bell shapedhousings - Variations
- 1. To accomplish brush to surface pressure adjustment, an alternative way is to mount the motor and shaft on bearings which slide axially, carrying the brush, towards or away from the surface.
- 2. A second way to adjust brush pressure against the surface, not shown, is to raise and lower the skirts or flange around the bell adjacent to the surface to be cleaned. A third way, not shown, is to raise and lower the wheels which position the bell height over the surface to be cleaned.
- 3. An alternative way to drive the brush while allowing axial motion is that, rather than a splined shaft, the last drive gear and its pinion, are made overly thick in the axial direction, so that torque is transmitted, even as the brush shaft moves axially. Axial movement allows achievement of various applications of surface pressure.
- 4. Not shown are mechanical provisions for driving an oscillating brush rather than a rotary brush. For back and forth oscillation, mechanical cranks or an offset cam will provide oscillating action, or other devices known to mechanical engineers skilled in the art. The oscillation action is preferred by some boat owners because residual cleaning streaks are all oriented in the direction of motion of the boat, and thus offer a slightly reduced drag over the surface.
- 5. Lateral motion of the entire apparatus, while cleaning a surface, can be accomplished by the operator tilting the bell, away from the desired direction of lateral motion. The tilt of the bell will cause the edge of the bell facing in the desired direction to lift, and there is then greater input flow from the lifted side than the low other side, and there will consequently be greater pull in the direction which has been lifted. Alternatively, lateral or sideways motion is accomplished by selectively opening valves in the sides of the bell, opening a valve in the side towards which motion is desired. The sideways suction aids sideways motion.
- 6. To adapt to curved boat hulls, the bell may be made into more than one solid piece. There will be multiple flaps on the side of the bell which can pull back from projection or curves, and return to normal when the underwater surface being cleaned is more regular. The bottom part of the bell is made of rubber, to conform to hull shapes.
- 7. The brush may be driven through a flexible shaft from a remote location. The motor may be powered by air, or powered by hydraulics.
- 8. Under certain combinations of surface quality, brush pressure, and water pressure, the pressure or suction toward the surface can become excessive, making lateral movement difficult. The unit will seem to bond to the surface. The remedies for this difficulty are several, one of which is to have release valves in the side of the bell. The internal suction is reduced when the relief valves are open. The opening of the valves is under manual control, or is spring operated, or other automatic control, related to pressure and lateral mobility. For example, if lateral motion is detected to be stiff, then by excess pressure required on the handle, the side valves will automatically open, or the bottom wheels will lift the assembly.
- 9. The skirt may be larger than shown, and the bottom (
surface 12 side) part of the bell may be highly flexible and extend upward (axial direction) to a large percentage of the bell sides. The bell will then more flexibly adapt to various boat hull shapes. - 10. The skirt may be formed of a large number of rubber fingers, also adaptable to boat bottom shapes, and passing water with some resistance to the bell.
- 11. The system can be configured in the manner of the classic upright vacuum cleaner, as described in FIG. 4. The brush scrubbing element is a roller, rather than a flat circular brush surface. The debris is collected while scrubbing and sent upwards to a large bag, which filters out the debris and exhausts the water. The scrub marks of such a system are parallel, rather than circular, and will aid the speed of a boat.
Claims (15)
1. A system for cleaning underwater surfaces, comprised of a power drive to an abrasive device, a housing for the device with an open end towards the surface to be cleaned, an exhaust pump connected to or external to the housing, said pump suctioning water from the underwater surface through the housing to the exhaust point, said water flow causing said housing to press against the surface to be cleaned.
2. A system for cleaning underwater surfaces as in claim 1 , in which the said moving abrasive device is in the shape of a flat circular disk, with an abrasive side facing the surface, and in which the said power drive is in the form of a shaft to the circular disk.
3. A system for cleaning underwater surfaces as in claim 1 , in which the said moving abrasive device is in the shape of a roller, with axis parallel to the said surface, with an abrasive exterior facing the said surface, and in which the said power drive is a belt drive to the said roller.
4. A system for cleaning underwater surfaces as in claim 1 , in which the said housing is in the form of a bell, the open end of the bell facing the underwater surface.
5. A system for cleaning underwater surfaces as in claim 1 in which said power drive causes oscillatory action of said abrasive device.
6. A system for cleaning underwater surfaces as in claim 1 in which power to said power drive is an electric motor.
7. A system for cleaning underwater surfaces as in claim 1 in which power to said power drive is an hydraulic motor.
8. A system for cleaning underwater surfaces as in claim 7 in which said hydraulic motor is driven by the water flow resulting from the suction of water by said exhaust pump.
9. A system for cleaning underwater surfaces as in claim 1 in which the said motor driving the said shaft moving the said brush also drives the rotor of a centrifugal pump, said centrifugal pump then acting as the said exhaust pump.
10. A system for cleaning underwater surfaces as in claim as in 1 in which the said suction water flow also removes debris to a remote location.
11. A system for cleaning underwater surfaces as in claim 1 in which the lips of the said housing are held a short distance away from the said surface by roller wheels.
12. A system for cleaning underwater surfaces as in claim 1 in which the said lips of the said housing are held away by a rubber bumper.
13. A system for cleaning underwater surfaces as in claim as in 1 in which the said open end of said housing is surrounded by a flexible skirt or flange which resists water flow under the housing perimeter tips, and thereby increases the pressure of the housing against the said surface.
14. A system for cleaning underwater surfaces as in claim 1 in which the said brush can be moved perpendicularly to said surface towards or away from said surface to allow adjustment of the pressure of said brush against said surface.
15. A system for cleaning underwater surfaces as in claim 1 , in which lateral motion across said surface can be accomplished by slight tipping of said housing, thereby unbalancing the flow under the said lips, and causing the housing to have a preferred lateral direction of motion across said surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/406,089 US20040194237A1 (en) | 2003-04-04 | 2003-04-04 | Underwater cleaning apparatus using suction grip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/406,089 US20040194237A1 (en) | 2003-04-04 | 2003-04-04 | Underwater cleaning apparatus using suction grip |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040194237A1 true US20040194237A1 (en) | 2004-10-07 |
Family
ID=33097246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/406,089 Abandoned US20040194237A1 (en) | 2003-04-04 | 2003-04-04 | Underwater cleaning apparatus using suction grip |
Country Status (1)
Country | Link |
---|---|
US (1) | US20040194237A1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060064825A1 (en) * | 2004-09-29 | 2006-03-30 | Robert Reed | Spa and pool step vacuum |
US20070142058A1 (en) * | 2005-09-29 | 2007-06-21 | Kyocera Corporation | Communication Terminal, Mobile Communication System, and Communication Control Method |
WO2010091812A2 (en) | 2009-02-13 | 2010-08-19 | Rolls-Royce Plc | A surface treatment device |
US20110162570A1 (en) * | 2010-01-06 | 2011-07-07 | Robert Moser | Boat Hull Washing Apparatus |
US20140237740A1 (en) * | 2013-02-28 | 2014-08-28 | Phillip Kauffman | Device and system for cleaning a surface in a marine environment |
WO2014199013A1 (en) | 2013-06-13 | 2014-12-18 | Dg-Diving Group Ltd. | Apparatus and method for treating an underwater surface |
ES2461862R1 (en) * | 2012-11-20 | 2015-02-17 | Aqua Products, Inc. | Cleaning vehicle for a pool or tank with a motorized brush |
US20150135450A1 (en) * | 2012-09-11 | 2015-05-21 | Maytronics Ltd. | Pool cleaning robot |
US9179653B1 (en) | 2014-04-30 | 2015-11-10 | Kyle D. Snyder | Automated fish tank cleaning assembly |
US9222275B2 (en) | 2012-09-11 | 2015-12-29 | Maytronics Ltd. | Pool cleaning robot having waterline movement capabilities |
US10124867B2 (en) | 2015-09-11 | 2018-11-13 | Adi Ringer | Flexible rotary brush hub |
WO2019012184A1 (en) | 2017-07-13 | 2019-01-17 | Dg-Diving Group Ltd. | Method and system for treatment of an underwater surface and material removed from it |
US10306872B2 (en) | 2017-01-10 | 2019-06-04 | Pier Aquarium, Inc. | Aquarium cleaning device |
US20210267180A1 (en) * | 2018-07-18 | 2021-09-02 | Abyssnaut | System for cleaning walls of aquatic basins |
US20220322646A1 (en) * | 2019-06-12 | 2022-10-13 | Abyssnaut | System for cleaning walls of aquatic basins with motorized traveller |
-
2003
- 2003-04-04 US US10/406,089 patent/US20040194237A1/en not_active Abandoned
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060064825A1 (en) * | 2004-09-29 | 2006-03-30 | Robert Reed | Spa and pool step vacuum |
US20070142058A1 (en) * | 2005-09-29 | 2007-06-21 | Kyocera Corporation | Communication Terminal, Mobile Communication System, and Communication Control Method |
WO2010091812A2 (en) | 2009-02-13 | 2010-08-19 | Rolls-Royce Plc | A surface treatment device |
WO2010091812A3 (en) * | 2009-02-13 | 2010-10-14 | Rolls-Royce Plc | A surface treatment device |
US8651921B2 (en) | 2009-02-13 | 2014-02-18 | Rolls-Royce Plc | Surface treatment device |
US20110162570A1 (en) * | 2010-01-06 | 2011-07-07 | Robert Moser | Boat Hull Washing Apparatus |
US9145699B2 (en) | 2012-09-11 | 2015-09-29 | Maytronics Ltd. | Pool cleaning robot |
US9410338B2 (en) * | 2012-09-11 | 2016-08-09 | Maytronics Ltd. | Pool cleaning robot |
US9222275B2 (en) | 2012-09-11 | 2015-12-29 | Maytronics Ltd. | Pool cleaning robot having waterline movement capabilities |
US20150135450A1 (en) * | 2012-09-11 | 2015-05-21 | Maytronics Ltd. | Pool cleaning robot |
ES2461862R1 (en) * | 2012-11-20 | 2015-02-17 | Aqua Products, Inc. | Cleaning vehicle for a pool or tank with a motorized brush |
US9073614B2 (en) * | 2013-02-28 | 2015-07-07 | Carl Nettleton | Device and system for cleaning a surface in a marine environment |
US20140237740A1 (en) * | 2013-02-28 | 2014-08-28 | Phillip Kauffman | Device and system for cleaning a surface in a marine environment |
WO2014199013A1 (en) | 2013-06-13 | 2014-12-18 | Dg-Diving Group Ltd. | Apparatus and method for treating an underwater surface |
US9179653B1 (en) | 2014-04-30 | 2015-11-10 | Kyle D. Snyder | Automated fish tank cleaning assembly |
US10124867B2 (en) | 2015-09-11 | 2018-11-13 | Adi Ringer | Flexible rotary brush hub |
US10858082B2 (en) | 2015-09-11 | 2020-12-08 | Adi Ringer | Flexible rotary brush hub |
US10306872B2 (en) | 2017-01-10 | 2019-06-04 | Pier Aquarium, Inc. | Aquarium cleaning device |
WO2019012184A1 (en) | 2017-07-13 | 2019-01-17 | Dg-Diving Group Ltd. | Method and system for treatment of an underwater surface and material removed from it |
US11542176B2 (en) | 2017-07-13 | 2023-01-03 | Dg-Diving Group Ltd. | Method and system for treatment of an underwater surface and material removed from it |
US20210267180A1 (en) * | 2018-07-18 | 2021-09-02 | Abyssnaut | System for cleaning walls of aquatic basins |
US11980173B2 (en) * | 2018-07-18 | 2024-05-14 | Abyssnaut | System for cleaning walls of aquatic basins |
US20220322646A1 (en) * | 2019-06-12 | 2022-10-13 | Abyssnaut | System for cleaning walls of aquatic basins with motorized traveller |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20040194237A1 (en) | Underwater cleaning apparatus using suction grip | |
USRE45852E1 (en) | Swimming pool cleaning device | |
US5933899A (en) | Low pressure automatic swimming pool cleaner | |
JPH0947735A (en) | Water tank purifier | |
US3936899A (en) | Automatic swimming pool cleaner | |
AU725207B2 (en) | Swimming pool cleaner | |
US4449265A (en) | Swimming pool sweep | |
US6782578B1 (en) | Swimming pool pressure cleaner with internal steering mechanism | |
US20120279001A1 (en) | Automatic cleaning machine driven by hydraulic power from bottom of swimming pool and hydraulic drive jaw type clutch impeller combination thereof | |
GB1584962A (en) | Cleaning implement for swimming pools | |
JP2017516935A5 (en) | ||
EP2275626A3 (en) | Suction powered pool cleaner | |
US20040133999A1 (en) | Underwater cleaning and scrubbing apparatus | |
CA2414101C (en) | Swimming pool pressure cleaner with internal steering mechanism | |
US20020073493A1 (en) | System for cleaning underwater surfaces, improvements and variations | |
CN205444273U (en) | Portable submarine soil pick -up car | |
CN112547585A (en) | Self-suction type side outlet underwater fishing net cleaning device | |
CN111838065A (en) | Fishpond cleaning robot and cleaning method thereof | |
CN218463835U (en) | Robot for cleaning hull surface | |
CN217399591U (en) | Water surface garbage cleaning device | |
KR102336546B1 (en) | Underwater cleaning robot for minimizes external scattering and suction volume | |
JP3226792B2 (en) | Underwater cleaning device | |
US20110162570A1 (en) | Boat Hull Washing Apparatus | |
JPH07328579A (en) | Water tank cleaning machine | |
CN220410849U (en) | Ship bottom cleaning robot |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |