NZ550711A - Scavenging cleaning system - Google Patents
Scavenging cleaning systemInfo
- Publication number
- NZ550711A NZ550711A NZ550711A NZ55071106A NZ550711A NZ 550711 A NZ550711 A NZ 550711A NZ 550711 A NZ550711 A NZ 550711A NZ 55071106 A NZ55071106 A NZ 55071106A NZ 550711 A NZ550711 A NZ 550711A
- Authority
- NZ
- New Zealand
- Prior art keywords
- cleaning system
- liquid
- recovery
- vacuum pump
- delivery
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 111
- 230000002000 scavenging effect Effects 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 170
- 238000011084 recovery Methods 0.000 claims abstract description 85
- 238000004891 communication Methods 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims abstract 3
- 238000000926 separation method Methods 0.000 claims description 27
- 230000000694 effects Effects 0.000 claims description 9
- 239000013536 elastomeric material Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000004753 textile Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000356 contaminant Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
- A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
- A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
- A47L11/4022—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids with means for recycling the dirty liquid
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4044—Vacuuming or pick-up tools; Squeegees
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/408—Means for supplying cleaning or surface treating agents
- A47L11/4088—Supply pumps; Spraying devices; Supply conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/14—Removing waste, e.g. labels, from cleaning liquid; Regenerating cleaning liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S3/00—Vehicle cleaning apparatus not integral with vehicles
- B60S3/04—Vehicle cleaning apparatus not integral with vehicles for exteriors of land vehicles
- B60S3/045—Other hand-held cleaning arrangements, e.g. with sponges, brushes, scrapers or the like
- B60S3/047—Other hand-held cleaning arrangements, e.g. with sponges, brushes, scrapers or the like using liquid or gas distributing means
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
Claims (8)
- A scavenging cleaning system substantially for domestic use, said cleaner comprising in combination:<br><br> (a) a reservoir of liquid and a supply and recovery sub-system located in association with a cleaner body ;<br><br> (b) a vacuum pump arrangement located within said cleaner body;<br><br> (c) a flexible connecting hose system comprising a plurality of fluid conducting passages; said hose system extending from said body and connected at a first end to said cleaner and at a second end to a delivery/recovery head; said passages in fluid communication with said reservoir of liquid and a supply and recovery sub-system; at least one of said passages further in vacuum communication with said vacuum pump arrangement,<br><br> and wherein said delivery/recovery head is separated from the said body of the said cleaner by the said communicating hose system and wherein said delivery/recovery head is light and easily moved over surfaces to be cleaned, of any orientation from horizontal to vertical (such as a motor vehicle body) and wherein said delivery/recovery head includes a<br><br> - 34 -<br><br> delivery nozzle and at least one liquid recovery inlet orifice, whereby liquid from said reservoir of liquid and a supply and recovery sub-system is delivered at high-pressure to a target surface, and 5 wherein_substantially all said liquid so delivered is recovered and repeatedly reused by the cleaner.<br><br> 2. The cleaning system of claim 1 wherein said hose system includes separately a delivery passage for said<br><br> 10 liquid and at least one liquid recovery passage.<br><br> 3. The cleaning system of claim 1 or 2 wherein at least one swivel connection is located in said hose system.<br><br> 4. The cleaning system of claim 3 wherein said at least one swivel connection is located at either end or both<br><br> 15 ends of said hose system.<br><br> 5. The cleaning system of any one of claims 1 to 4 wherein said delivery/recovery head includes a brush assembly.<br><br> 6. The cleaning system of any previous claim wherein said<br><br> 20 liquid from said reservoir of liquid and a supply and recovery sub-system is delivered at a pressure up to 3000 psi.<br><br> 7. The cleaning system of any one of claims 1 to 6 wherein said pressure is in the range of 1000 psi to<br><br> 25 16 00 psi.<br><br> - 35 -<br><br> 8. The cleaning system of any one of claims 1 to 6 wherein said pressure is in the range of 2 psi to 100 psi.<br><br> 9. The cleaning system of any one of claims 1 to 8 5 wherein said reservoir of liquid and a supply and recovery sub-system incorporates at least one baffle; said at least one baffle adapted to prevent liquid surging within said cleaner; said at least one baffle further adapted to reduce amount of entrained liquid 10 droplets presenting to said vacuum pump arrangement.<br><br> 10. The cleaning system of any one of claims 1 to 9 wherein said cleaner further incorporates a liquid separation device whereby liquid returning to said cleaner is substantially separated from an air stream<br><br> 15 within which it is entrained.<br><br> 11. The cleaning system of claim 10 wherein said liquid separation device includes a cyclonic separator.<br><br> 12. The cleaning system of claim 10 wherein said liquid separation device includes a vane type separator; said<br><br> 20 vane type separator adapted to separate a liquid from an air stream by means of trapping entrained liquid behind vanes at points where said gas stream is forced to change direction by said vanes.<br><br> 13. The cleaning system of claim 12 wherein said separator 25 includes a coarse mesh filter or the like; said filter or the like located in front of said vane type<br><br> - 36 -<br><br> separator so as to prevent larger particulate matter entering into and becoming trapped in said vane type separator.<br><br> 14. The cleaning system of any one of claims 10 to 13 5 wherein said liquid separation device provides a physical separation between said air stream and said reservoir of liquid within said cleaner.<br><br> 15. The cleaning system of claim 14 wherein said physical separation is provided by means of a shallow upper<br><br> 10 cone placed one on top of a shallow inverted lower cone such that said upper cone is pointed upwards and provides a first liquid draining surface extending to a periphery of said liquid separation device.<br><br> 16. The cleaning system of claim 15 wherein said lower 15 cone forms a tundish; said lower cone truncated to form a central orifice such that liquid having drained from said periphery is captured by said lower cone; said lower cone providing a second draining surface extending to said central orifice.<br><br> 20 17. The cleaning system of any one of claims 10 to 16 wherein components of said liquid separation device are adapted for rapid disassembly so as to allow cleaning of said device.<br><br> 18. The cleaning system of any previous claim wherein said 25 cleaner body is supported on wheels, skids or the like whereby said cleaner can be urged and moved from a<br><br> - 37 -<br><br> first location to a second location without being lifted clear of the surface upon which it rests.<br><br> 19. The cleaning system of any one of claims 1 to 18 wherein said body is translucent so as to allow a user<br><br> 5 to observe the level, behaviour and clarity of said liquid.<br><br> 20. The cleaning system of any one of claims 1 to 18 wherein said body incorporates a transparent or translucent panel so as to allow a user to observe the<br><br> 10 level, behaviour and clarity of said liquid.<br><br> 21. The cleaning system of any one of claims 1 to 20 wherein said body incorporates a large bore drain valve.<br><br>
- 2-2. The cleaning system of any previous claim wherein said<br><br> 15 cleaner further incorporates at least one filter within said body; said at least one filter filtering liquid returned from said delivery nozzle and liquid recovery inlet orifice via said hose system.<br><br> 23. The cleaning system of claim 22 wherein said at least<br><br> 20 one filter includes a cyclone-type filter.<br><br> 24. The cleaning system of claim 22 wherein said at least one filter comprises a cartridge filter.<br><br> 25. The cleaning system of claim 22 wherein said at least one filter comprises a porous textile supported on a<br><br> 25 frame; said textile and said frame forming a filter<br><br> - 38 -<br><br> assembly within said reservoir of liquid, supply and recovery subsystem.<br><br> 26. The cleaning system of claim 25 wherein said textile incorporated in said filter assembly is adapted to<br><br> 5 have an affinity with selected contaminants returning to said cleaner body in said air stream and recovered liquid.<br><br> 27. The cleaning system of claim 26 wherein said selected contaminants include oil and like substances<br><br> 10 originating in from road film washed from a vehicle surface.<br><br> 28. The cleaning system of any one of claims 22 to 27 wherein said at least one filter within said body is positioned between the point of entry into said body<br><br> 15 of said liquid recovery passage and the surface of said liquid retained in said reservoir of liquid and a supply and recovery sub-system.<br><br> 29. The cleaning system of any one of claims 22 to 28 wherein said at least one filter within said cleaner<br><br> 20 body is enclosed within an enclosed filter housing such that the entire surface area of said at least one filter is utilised even at very low liquid levels within said cleaner reservoir.<br><br> 30. The cleaning system of claim 29 wherein said filter<br><br> 25 housing is comprised of an inverted, open container sealed but for a small gap at the bottom to allow said<br><br> - 39 -<br><br> liquid to pass through from said reservoir to said at least one filter.<br><br> 31. The cleaning system of any one of claims 1 to 30 wherein a
- 3-way-valve is located in a liquid conduit<br><br> 5 between said reservoir of liquid and said pressure pump. Said 3-way-valve connecting at a first port to said reservoir, at a second port to said pressure pump and having a third port available for connection to a supply hose.<br><br> 10 32. The cleaning system of claim 31 wherein said 3-way-valve can allow any two or all three of said ports to be interconnected.<br><br> 33. The cleaning system of claim 31 or 32 wherein said supply hose is used to fill said reservoir of liquid.<br><br> 15 34. The cleaning system of any one of claims 31 to 33 wherein said supply hose is used to prime said pressure pump.<br><br> 35. The cleaning system of any one of claims 1 to 34 wherein said delivery/recovery head comprises a hand-<br><br> 20 held housing and a head portion; said head portion incorporating said delivery nozzle and said at least one liquid recovery inlet orifice.<br><br> 36. The cleaning system of any one of claims 1 to 34 wherein said delivery/recovery head comprises a hand-<br><br> 25 held housing and a head portion separated by a rigid and strong connecting piece set at an angle to said<br><br> - 40 -<br><br> head portion and of sufficient length such that said hand piece is at a practical working distance from the face of the delivery/recovery head for the cleaning of solid surfaces such as walls and floors; said head<br><br> 5 portion incorporating said delivery nozzle and said at least one liquid recovery inlet orifice.<br><br> 37. The cleaning system of claim 36 wherein said angle is between 40 and 55 degrees.<br><br> 38. The cleaning system of claim 36 wherein said angle is<br><br> 10 45 degrees.<br><br> 39. The cleaning system of claim 36 wherein said practical working distance is between 700 and 1000mm.<br><br> 40. The cleaning system of claim 36 wherein said practical working distance is 800mm.<br><br> 15 41. The cleaning system of claim 1 or 40 wherein said delivery nozzle and said at least one recovery inlet orifice are fixed within said head portion.<br><br> 42. The cleaning system of any one of claims 36 to 41 wherein said delivery nozzle is controlled by a<br><br> 20 trigger assembly on said hand-held housing.<br><br> 43. The cleaning system of any one of claims 1 to 42 wherein said delivery nozzle is adjustable in height relative to a vehicle body or other surface over which it passes.<br><br> 25 44. The cleaning system of any one of claims 1 to 43 wherein said delivery nozzle is adapted to provide a<br><br> - 41 -<br><br> fan-shaped, vee-shaped or conically-shaped spray pattern.<br><br> 45. The cleaning system of claim 43 or 44 wherein said delivery nozzle is recessed within said brush 5 assembly; the bristles of said brush or like structure extending beyond said delivery nozzle so as to contact said vehicle body or other surface at a predetermined distance in advance of said delivery nozzle.<br><br> 46 . The cleaning system of claim 45 wherein said bristles 10 are arranged in a generally annular array; said delivery nozzle located centrally within said array; said array forming an enclosure when in contact with said surface; said enclosure adapted to substantially capture liquid emitted by said delivery nozzle for 15 return to said body via said at least one liquid recovery inlet orifice.<br><br> 47. The cleaning system of claim 46 wherein said at least one liquid recovery inlet orifice arranged at the periphery of said annular array.<br><br> 20 48. The cleaning system of claim 46 or 47 wherein a base portion of said head portion is provided with a flexible outer skirt of elastomeric material extending from a periphery of said base portion; said base portion further provided with a flexible inner skirt 25 of elastomeric material depending from a periphery of a generally annular array of bristles of said brush<br><br> - 42 -<br><br> assembly; said inner skirt substantially concentric with said outer skirt to form a generally annular space; the arrangement being such that liquid injected into an enclosure formed by said annular array of<br><br> 5 bristles and a surface of application, is forced outwardly past said bristles into said generally annular area formed between said inner skirt and said outer skirt; said liquid substantially drawn into at least one said liquid recovery inlet orifice<br><br> 10 communicating with said generally annular space.<br><br> 49. The cleaning system of claim 48 wherein said outer skirt and said inner skirt substantially maintain a seal with said surface of application; said inner skirt and said outer skirt forming a smooth walled<br><br> 15 enclosure adapted to facilitate capture of said liquid.<br><br> 50. The cleaning system of claim 48 or 49 wherein said base portion is provided with an outer generally annular array of bristles; said outer generally<br><br> 20 annular array complementing or replacing said outer skirt.<br><br> 51. The cleaning system of any one of claims 48 to 50 wherein said outer skirt is angled in towards said inner skirt such that when pressure is applied to said<br><br> 25 delivery/recovery head against said surface of application being cleaned, said outer skirt slidingly<br><br> - 43 -<br><br> folds inwards so as to substantially maintain integrity of said enclosure and said seal with said surface.<br><br> 52. The cleaning system of any one of claims 48 to 51<br><br> 5 wherein extension of said outer skirt from said base portion is greater than extension of said generally annular array of bristles; extension of said inner skirt being less than said extension of said generally annular array of bristles.<br><br> 10 53. The cleaning system of any one of claims 48 to 52 wherein said elastomeric material of said inner skirt and said outer skirt is a non-marking material.<br><br> 54. The cleaning system of any one of claims 48 to 53 wherein said elastomeric material is a silicone<br><br> 15 rubber.<br><br> 55. The cleaning system of any one of claims 48 to 54 wherein said inner skirt and said outer skirt are releasably attached to said base portion so as to be readily replaceable when worn or damaged.<br><br> 20 56. The cleaning system of any one of claims 1 to 55 wherein said reservoir of liquid and a supply and recovery sub-system includes a pressure pump.<br><br> 57. The cleaning system of claim 56 wherein said pressure pump is located at or near a base portion of said body<br><br> 25 thereby to keep the centre of gravity of said cleaner relatively low.<br><br> - 4
- 4 -<br><br> 58. The cleaning system of claim 56 or 57 wherein said pressure pump is provided with an over-pressure sensing switch adapted to detect when pressure supplied by said pump exceeds a predefined threshold. 5 59. The cleaning system of claim 58 wherein said overpressure switch acts to turn off said pump when flow from said pump is obstructed when said trigger is released to close said delivery nozzle while said delivery/recovery head is in contact with a said 10 surface of application.<br><br> 60. The cleaning system of any one of claims 56 to 59 wherein said pump is provided with an isolating switch adapted to isolate said pump from a power supply.<br><br> 61. The cleaning system pf any previous claim wherein said 15 vacuum pump arrangement incorporates a first switch and control for said reservoir of liquid and a supply and recovery sub-system; said first switch and control adapted to selectively switch said sub-system from an operational to a non-operational condition.<br><br> 20 62. The cleaning system of any one of claims 1 to 61 wherein said vacuum pump arrangement incorporates a switching mechanism thereby to move said vacuum pump arrangement from an operational to a non-operational condition.<br><br> 25 63. The cleaning system of any one of claims 1 to 62 wherein said vacuum pump arrangement and said<br><br> - 4
- 5 -<br><br> reservoir of liquid and said supply and recovery subsystem are selected so that maximum combined electric current draw at any one time is limited to domestic electric output capacity.<br><br> 5 64. The cleaning system of claim 63 wherein said output capacity is 10 amps.<br><br> 65. The cleaning system of any one of claims 1 to 64 wherein said vacuum pump assembly comprises a plurality of vacuum pumps fitted to a common vacuum 10 receiving chamber; each of said plurality of vacuum pumps individually controllable such that said vacuum pump arrangement exhibits a modulating effect and is capable of delivering a variable air flow and vacuum with a corresponding electrical current draw. 15 66. The cleaning system of claim 65 wherein said plurality of vacuum pumps comprises two vacuum pumps.<br><br> 67. The cleaning system of claim 65 or 66 wherein at least one vacuum pump discharges into a common exhaust manifold.<br><br> 20 68. The cleaning system of claim 67 wherein said common exhaust manifold is a source of pressurised air.<br><br> 69. The cleaning system of claim 67 or 68 wherein said common exhaust manifold is provided with a fitting at an exhaust port of said manifold; said exhaust port 25 adapted to accept connection of a blower hose to said<br><br> - 4
- 6 -<br><br> vacuum pump assembly to facilitate blowing down or drying of surfaces.<br><br> 70. The cleaning system of claim 66 wherein one vacuum pump of said two vacuum pumps has an electric current<br><br> 5 draw substantially equal to said one pressure pump.<br><br> 71. The cleaning system of claim 70 wherein said one vacuum pump is arranged to switch from off to on automatically as said pressure pump switches from on to off such that the operational states of said one<br><br> 10 vacuum pump and said pressure pump are mutually exclusive.<br><br> 72. The cleaning system of any one of claims 65 to 71 wherein each of said vacuum pumps is provided with a one-way valve adapted to prevent an operational vacuum<br><br> 15 pump drawing air through an adjacent non-operational vacuum pump, thereby to ensure substantially all air entering said vacuum pump assembly is drawn from said liquid separator device so as to maximise scavenging of liquid.<br><br> 20 7 3. The cleaning system of any one of claims 65 to 72 wherein said modulating effect of said vacuum pump assembly is effected by means of a single vacuum pump provided with a variable speed drive.<br><br> 74. The cleaning system of claim 31 wherein a modulating<br><br> 25 effect of said pressure pump is effected by means of a variable speed drive.<br><br> - 4
- 7 -<br><br> 75. The cleaning system of claim 74 wherein a modulating effect of said vacuum pump assembly and said pressure pump is effected by means of variable speed drives on each.<br><br> 5 76. The cleaning system of claim 75 wherein said variable speed drives are controlled by an electronic control in a complimentary manner such that as the pressure pump speeds up the vacuum pump assembly slows down.<br><br> 77. The cleaning system of claim 76 wherein said 10 electronic control maintains the total electric current draw for both said pressure pump and said vacuum pump assembly below a preset maximum.<br><br> 78. The cleaning system of claim 77 wherein said preset maximum electric current draw is the maximum allowable<br><br> 15 from a domestic power outlet.<br><br> 79. A method for the minimisation of liquid usage in a water-jet cleaning operation; said method including the steps of:<br><br> (a) supplying said liquid from a portable reservoir 20 of liquid and a supply and recovery sub-system via a first hose passage and a delivery nozzle of a delivery/recovery head,<br><br> - 4
- 8 -<br><br> (b) providing said delivery/recovery head with a projecting generally annular brush forming an enclosure when ends of bristles of said brush are in contact with a surface,<br><br> (c) supplying vacuum pressure via a second hose passage to said enclosure so as to substantially return liquid issuing from said delivery nozzle to said reservoir of liquid and a supply and recovery sub-system via said second hose passage.<br><br> 80. The method of claim 79 wherein said surface is the exterior of a motor vehicle.<br><br> 81. The method of claim 79 or 80 wherein said surface is a hard surface amenable to cleaning with a high pressure liquid jet.<br><br> 82. A scavenging cleaning system as herein described and with reference to the accompanying drawings.<br><br> DATED: 15 June 2007<br><br> END OF CLAIMS<br><br> JOHN CHARLES TURNER<br><br> </p> </div>
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2006/054374 WO2007063452A2 (en) | 2005-11-30 | 2006-11-21 | Scavenging cleaning system |
AU2006321235A AU2006321235B2 (en) | 2005-11-30 | 2006-11-21 | Scavenging cleaning system |
US12/156,020 US20080295864A1 (en) | 2005-11-30 | 2008-05-29 | Scavenging cleaning system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2005906693A AU2005906693A0 (en) | 2005-11-30 | Scavenging Cleaner System | |
AU2006905799A AU2006905799A0 (en) | 2006-10-19 | Scavenging Cleaning System |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ550711A true NZ550711A (en) | 2007-07-27 |
Family
ID=38283606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ550711A NZ550711A (en) | 2005-11-30 | 2006-10-24 | Scavenging cleaning system |
Country Status (1)
Country | Link |
---|---|
NZ (1) | NZ550711A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112009432A (en) * | 2020-08-06 | 2020-12-01 | 上海赋懂新能源科技有限公司 | New forms of energy carwash instrument |
WO2023221563A1 (en) * | 2022-05-20 | 2023-11-23 | 追觅创新科技(苏州)有限公司 | Liquid storage structure and cleaning apparatus |
-
2006
- 2006-10-24 NZ NZ550711A patent/NZ550711A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112009432A (en) * | 2020-08-06 | 2020-12-01 | 上海赋懂新能源科技有限公司 | New forms of energy carwash instrument |
WO2023221563A1 (en) * | 2022-05-20 | 2023-11-23 | 追觅创新科技(苏州)有限公司 | Liquid storage structure and cleaning apparatus |
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