WO1999039845A1 - A method for removing a material from the surface of a product - Google Patents
A method for removing a material from the surface of a product Download PDFInfo
- Publication number
- WO1999039845A1 WO1999039845A1 PCT/NL1999/000058 NL9900058W WO9939845A1 WO 1999039845 A1 WO1999039845 A1 WO 1999039845A1 NL 9900058 W NL9900058 W NL 9900058W WO 9939845 A1 WO9939845 A1 WO 9939845A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- product
- dirt
- liquid medium
- atmospheric pressure
- present
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 235000013351 cheese Nutrition 0.000 claims description 24
- 238000005406 washing Methods 0.000 claims description 21
- 241000251468 Actinopterygii Species 0.000 claims description 15
- 235000013372 meat Nutrition 0.000 claims description 7
- 235000013311 vegetables Nutrition 0.000 claims description 7
- 235000019688 fish Nutrition 0.000 claims description 5
- 235000016068 Berberis vulgaris Nutrition 0.000 claims description 2
- 241000335053 Beta vulgaris Species 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 claims description 2
- 241000736199 Paeonia Species 0.000 claims description 2
- 235000006484 Paeonia officinalis Nutrition 0.000 claims description 2
- 244000061456 Solanum tuberosum Species 0.000 claims description 2
- 235000002595 Solanum tuberosum Nutrition 0.000 claims description 2
- 235000012015 potatoes Nutrition 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 19
- 239000011241 protective layer Substances 0.000 description 15
- 235000006770 Malva sylvestris Nutrition 0.000 description 10
- 240000002129 Malva sylvestris Species 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 7
- 235000021186 dishes Nutrition 0.000 description 7
- 238000010257 thawing Methods 0.000 description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000003599 detergent Substances 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 229940112822 chewing gum Drugs 0.000 description 2
- 235000015218 chewing gum Nutrition 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 235000013332 fish product Nutrition 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 244000038561 Modiola caroliniana Species 0.000 description 1
- 206010035148 Plague Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C19/00—Cheese; Cheese preparations; Making thereof
- A23C19/14—Treating cheese after having reached its definite form, e.g. ripening, smoking
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/57—Chemical peeling or cleaning of harvested fruits, vegetables or other foodstuffs
-
- 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
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/02—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket
- A47L15/10—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket by introducing compressed air or other gas into the liquid
-
- 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
- B08B3/102—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 with means for agitating the liquid
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/002—Arrangements for cleaning building facades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2220/00—Type of materials or objects being removed
- B08B2220/02—Chewing gum
-
- C11D2111/40—
Definitions
- the invention relates to a method for removing a material from the surface of a product, wherein said product is at least partially placed in a liquid medium.
- the invention furthermore relates to a device for carrying out said method.
- a method and a device of this kind are generally known.
- a soiled product is washed by immersing it in flowing water, whereby the dirt is washed off the product by the water.
- a cleaning agent is used thereby, for example a liquid detergent.
- the objective of the invention is to provide a method for removing a material which has adhered to the surface of a product, wherein the product is at least partially placed in a liquid medium, and in order to accomplish that objective, the invention is characterized in that a gas, in particular air, is extracted from the material. More in particular, said gas is extracted by using a sub-atmospheric pressure, in particular a vacuum.
- a gas in particular air
- said gas is extracted by using a sub-atmospheric pressure, in particular a vacuum.
- the invention is based on the insight that gas inclusions 2 are present in the material which is present on the surface of the product and also between said material and said surface, which gas inclusions "are released" when a sub-atmospheric pressure is applied. Generally, said gas is air.
- the material loses its adherence to the product surface, whereby the liquid medium has a soaking effect on the material and takes the place of the gas inclusions which are being released. Eventually, the material will crumble off completely from the product surface as the process progresses, or it can easily be removed afterwards. It is preferred to use a heated liquid medium in order for the process to take place more efficiently.
- an at least substantially stagnant liquid medium is used, in particular water.
- the product is immersed in a container which is filled with said liquid medium, and a sub-atmospheric pressure, in particular a vacuum, is applied above the liquid medium.
- the sub-atmospheric pressure will thus cause the aforesaid air inclusions to be released and bubble up to the surface of the liquid medium.
- the air inclusions may be carried off via a filter that may be provided.
- the extracted air inclusions cause the material, which frequently adheres firmly to the product surface, to break open. As a result of this, the material gradually loses its adherence to the product surface as the process progresses, and sinks to the bottom of the container in the form of detached parts, or it can be easily removed from the product surface afterwards. The latter takes place by squirting a liquid (water) onto the product for a short period, whereby the material is washed off the product .
- said sub-atmospheric pressure varies 3 between 0.01 and 17 bar, preferably between 0.1 bar and 0.2 bar (as an underpressure in comparison with the atmospheric pressure, which is generally approx. 1 bar) .
- the sub-atmospheric pressure is preferably controllable, in particular infinitely variably so.
- a cheese or a part thereof is selected as the product, from which a protective layer is removed.
- a protective layer of plastic material, which adheres firmly to the surface of the cheese.
- a container which is filled with a hydrogen peroxide solution (H 2 0 2 ) in which the cheese is immersed, is used for removing said protective layer from the cheese. After the cheese has remained in the container for a number of hours, the adherence of the plastic layer to the cheese is largely lost.
- tubers, bulbs, stalk products or parts thereof preferably potatoes, beets or bulbs, are selected as said product to be treated, from which dirt which is present thereon is removed.
- (perennial) plants or parts thereof, preferably peonies are selected as the product, from which dirt which is present thereon is removed.
- fibrous products in particular clothing and the like, are selected as said product, from which fibrous products dirt which is present thereon is removed .
- crockery, cutlery and the like are selected as said product, from which dirt which is present thereon is removed.
- a facade is selected as the product, from which dirt which is present thereon, in particular graffiti, is removed.
- an archeological object is selected as the product, from which dirt which is present thereon is removed. It has become apparent that in particular heavy clay can be easily removed in a short period of time.
- a floor in particular paving, is selected as the product, from which dirt such as chewing gum, sand, clay and/or mineral hydrocarbons, is removed. 5
- the invention also relates to a device for carrying out the method according to the invention, which device comprises a container, which is to be filled with a liquid medium, for the product to be placed therein, as well as means for generating a sub- atmospheric pressure, in particular a vacuum, above said liquid medium.
- the container comprises a supporting element for the product.
- means for supplying a gas, preferably air, to the liquid medium are provided. This makes it possible to prevent situations wherein for example the presence of ice, for example when fish are cleared of ice, causes the liquid medium (water) to freeze .
- the device is a washing machine or a dishwasher.
- it is a facade cleaner, more in particular a graffiti removing device.
- it is a floor (paving) cleaner.
- said cheese is immersed in a water-filled container, after which a vacuum, at least a sub- atmospheric pressure, is generated in the container, in the space above the water level.
- Gas inclusions are present between the actual cheese and the protective layer, whilst gas inclusions are furthermore present between sublayers of said 6 protective layer, which gas inclusions are released as a result of the presence of said sub-atmospheric pressure, and which bubble up to the surface.
- Water takes the place of the original gas inclusions, as a result of which the protective layer can subsequently be removed, that is, after about three hours, without any difficulty.
- this period can be shortened by heating the water, preferably to a temperature of about 50° C. Furthermore, the period of time within which the protective layer can be removed in accordance with the invention is reduced when the cheeses are placed in the container in such a manner that they do not touch each other. After said period, the protective layer can be simply removed by means of a spray-cleaning technique.
- a washing machine and a 7 dishwasher are used.
- the above products are placed into, respectively, the washing machine and the dishwasher, after which water is pumped into said machine for soaking the dirt which is present on the surface of said products.
- a sub-atmospheric pressure preferably a vacuum, is generated in the container, with the aforesaid effect in accordance with the invention.
- Figure 1 is a schematic, perspective view of a device for removing a protective layer from cheeses.
- Figures 2 - 5 are schematic, longitudinal vertical sections of devices for thawing fish, for cleaning a floor or a facade, for cleaning textile and for cleaning dishes, respectively.
- Figure 1 shows a container in the form of a steel vacuum tank 1, which is partially filled with hot water 2 having a temperature of 20 - 50° Celsius, preferably 25 - 40° Celsius.
- Hot water 2 having a temperature of 20 - 50° Celsius, preferably 25 - 40° Celsius.
- Cheeses which are provided with a usual protective layer are placed separately or in a number of packages 3 on a conveyor belt 5, which is driven by a driving pulley 5.
- the cheeses are present on stationary conveyor belt 4 in completely submerged condition, that is, below the water line 6.
- the protective layer has come "loose” from the cheese surface within a few hours, to such a degree that it can subsequently be removed therefrom without any difficulty, for example by spraying a jet of water (lightly) onto the cheeses.
- air is admitted into space 7, water 2 is pumped out, vacuum tank 1 is opened and the cheeses can be lifted off conveyor belt 4 at the end thereof by moving the conveyor belt in little steps, after which the protective layer can be removed completely by means of a spray cleaning technique.
- vacuum tank 1 will furthermore comprise an air inlet 8 with a perforated air baffle 9 to prevent the water from freezing.
- FIG 2 relates to the thawing of frozen fish products 10, which are placed in vacuum tank 1, whereby the ice usually causes the fish products to adhere to each other.
- Those parts of vacuum tank 1 that correspond with parts which are shown in Figure 1 are indicated by the same numerals.
- vacuum tank 1 is closed and partially filled with water 2, that is, up to line 6, whereby the fish parts 10 are 9 completely submerged.
- the filling of the tank with water 2 takes place by means of a liquid valve 11, which, when open, allows water 2 to flow into the vacuum tank 1 via jets 12. In the closed condition of liquid valve 11, the water flow to jets 12 is shut off.
- Air inlet 8 is actuated by a gas valve 19, which, when open, allows an air flow to air baffle 9, and which, when closed, shuts off the air flow to said air baffle.
- space 7 is filled with air again and water 2 is pumped out through a liquid pump/valve device 15, after which the thawed fish parts 10 can be removed one by one from vacuum tank 1 for further processing.
- Figure 3 refers to a, preferably portable, facade cleaner for removing in particular graffiti from facades and the like, and to a floor (paving) cleaner for cleaning floors and the like, whereby the removal of chewing gum, tar etc. may be considered.
- Parts which correspond with parts which are shown in Figures 1 and 2, are indicated by the same numerals.
- a surface (facade, floor) is indicated at 16, whilst numeral 17 indicates a seal between the surface 16 and the cleaner.
- the material to be removed from surface 16 10 is indicated at 18. Since the operation of cleaner 1 corresponds with that of vacuum tank 1 as shown in Figures 1 and 2, this operation will not be discussed now.
- FIG 4 shows a drum-type washing machine 19 comprising a housing 20, which is provided with a door 21.
- a vat 22 is present inside housing 20, in which a perforated rotary drum 23 is disposed.
- the inside of rotary drum 23 forms a washing space 24.
- Vat 22 and rotary drum 23 can contain water to a level which is sufficiently high for immersing the laundry which is present in drum 23.
- Rotary drum 23 is mounted on a rotary shaft 25, which is journalled in bearings 26 and which is provided with a pulley 27, by means of which said shaft can be driven.
- Rotary washer 19 furthermore comprises all the usual components, insofar as said components are not described as being different hereafter.
- Sprayers 28 are mounted inside the drum 23, which sprayers correspond with the sprayers 12 of Figures 2 and 3.
- Sprayers 28 are connected to a water pipe 29 via a pump (not shown) , whilst furthermore a liquid pump/valve device 30 is provided for pumping the washing water out of vat 22 after washing.
- the function of device 30 corresponds with that of device 15 of Figures 2 and 3.
- rotary washer 19 comprises a gas pump/valve device 31 for evacuating the space present above the water level in drum 23.
- FIG 5 shows a dishwasher 32, which comprises a 11 washing space 35 and a door 34, thus forming a washing space 35.
- Washing machine 32 comprises the usual components for such a machine, insofar as said components are not described as being different hereafter.
- Sprayers 36 are mounted at the top of washing space 35, which sprayers correspond with the sprayers 12 and 28 of Figures 2, 3 and 4. Said sprayers 36 are connected via a water pipe 37, in a manner already indicated above, to a water supply source.
- a liquid pump/valve device 38 is provided, which corresponds as regards its function with devices 15, 30 as shown in Figures 2, 3 and 4.
- Device 38 contains a screen (not shown) .
- the dishes to be cleaned are entirely immersed in washing space 35 by means of sprayers 36, after which a gas pump/valve device 39, which corresponds as regards its function and operation with device 13, 31 of Figures 2, 3 and 4, evacuates the space in washing space 35 above the water level . Gas inclusions in the dirt on the dishes and between the dirt and the dishes will bubble up, thus breaking open the dirt on the dishes, wherein loose dirt particles sink to the bottom, form where they are pumped out together with the water by means of the liquid pump/valve device 38. Perfectly cleaned dishes will remain in washing space 35. It stands to reason that said dishes cannot be removed one by one from the washing space before the vacuum has been released and the dirty washing water has been pumped out.
- vacuum and evacuation have been used in the above description of the figures, but that these terms are also meant to include, respectively, a sub-atmospheric pressure and the generation thereof.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99902937A EP1060034A1 (en) | 1998-02-06 | 1999-02-04 | A method for removing a material from the surface of a product |
CA002320281A CA2320281A1 (en) | 1998-02-06 | 1999-02-04 | A method for removing a material from the surface of a product |
AU23025/99A AU753983B2 (en) | 1998-02-06 | 1999-02-04 | A method for removing a material from the surface of a product |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1008219 | 1998-02-06 | ||
NL1008219 | 1998-02-06 | ||
NL1009388 | 1998-06-12 | ||
NL1009388A NL1009388C2 (en) | 1998-02-06 | 1998-06-12 | Method of depriving a product of a material on its surface. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999039845A1 true WO1999039845A1 (en) | 1999-08-12 |
Family
ID=26642743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1999/000058 WO1999039845A1 (en) | 1998-02-06 | 1999-02-04 | A method for removing a material from the surface of a product |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1060034A1 (en) |
AU (1) | AU753983B2 (en) |
CA (1) | CA2320281A1 (en) |
NL (1) | NL1009388C2 (en) |
WO (1) | WO1999039845A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1020680C2 (en) * | 2002-05-27 | 2003-12-08 | Archeologisch Diensten Ct Jws | Method is for sieving soil in archeological investigation and involves placing soil on sieve component fitted in closable tank, closure of tank, partial filing of tank with fluid and bringing tank to pressure less than that atmospheric |
GB2509499A (en) * | 2013-01-03 | 2014-07-09 | Tong Engineering Ltd | Cleaning root crops using reduced pressure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2457708A1 (en) * | 1974-12-06 | 1976-06-10 | Dynaclean Ltd | DEVICE FOR CLEANING SURFACES |
DE9217047U1 (en) * | 1991-12-20 | 1993-04-15 | Ruebig Ges.M.B.H. & Co. Kg, Wels, At | |
US5268036A (en) * | 1991-11-22 | 1993-12-07 | Aichelin Gmbh | Method and apparatus for cleaning metallic workpieces |
-
1998
- 1998-06-12 NL NL1009388A patent/NL1009388C2/en not_active IP Right Cessation
-
1999
- 1999-02-04 WO PCT/NL1999/000058 patent/WO1999039845A1/en not_active Application Discontinuation
- 1999-02-04 EP EP99902937A patent/EP1060034A1/en not_active Withdrawn
- 1999-02-04 CA CA002320281A patent/CA2320281A1/en not_active Abandoned
- 1999-02-04 AU AU23025/99A patent/AU753983B2/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2457708A1 (en) * | 1974-12-06 | 1976-06-10 | Dynaclean Ltd | DEVICE FOR CLEANING SURFACES |
US5268036A (en) * | 1991-11-22 | 1993-12-07 | Aichelin Gmbh | Method and apparatus for cleaning metallic workpieces |
US5268036B1 (en) * | 1991-11-22 | 1997-08-26 | Aichelin Gmbh | Method and apparatus for cleaning metallic workpieces |
DE9217047U1 (en) * | 1991-12-20 | 1993-04-15 | Ruebig Ges.M.B.H. & Co. Kg, Wels, At |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1020680C2 (en) * | 2002-05-27 | 2003-12-08 | Archeologisch Diensten Ct Jws | Method is for sieving soil in archeological investigation and involves placing soil on sieve component fitted in closable tank, closure of tank, partial filing of tank with fluid and bringing tank to pressure less than that atmospheric |
GB2509499A (en) * | 2013-01-03 | 2014-07-09 | Tong Engineering Ltd | Cleaning root crops using reduced pressure |
Also Published As
Publication number | Publication date |
---|---|
EP1060034A1 (en) | 2000-12-20 |
AU2302599A (en) | 1999-08-23 |
NL1009388C2 (en) | 1999-08-16 |
CA2320281A1 (en) | 1999-08-12 |
AU753983B2 (en) | 2002-10-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5536329A (en) | Method for washing produce | |
US5413131A (en) | Produce washer | |
US5879471A (en) | Method for repositioning produce during washing | |
US5218980A (en) | Ultrasonic dishwasher system | |
US4170241A (en) | Apparatus for cleaning containers | |
US4344448A (en) | Machine for cleaning receptacles | |
AU2009327568B2 (en) | Pre-rinsing of dishes | |
CN216123817U (en) | Washing tank for processing agricultural products | |
AU753983B2 (en) | A method for removing a material from the surface of a product | |
CN104438205A (en) | Tea cleaning device | |
CN210960340U (en) | Automatic fruit and vegetable cleaning processing production line | |
JP3507993B2 (en) | Continuous dishwashing method and apparatus | |
KR20010077130A (en) | dish-washer having ultrasonic washing function | |
JPH1156735A (en) | Dish washer | |
US1018046A (en) | Method of cleaning bottles. | |
US952734A (en) | Fruit-washing machine. | |
EP1121894B1 (en) | A method for separating solid particles from a liquid in a dish-washer | |
KR200435919Y1 (en) | Ultrasonic cleaner for manufacturing red ginseng | |
JPH05281A (en) | Apparatus for washing bottle | |
JP2003023907A (en) | Apparatus for egg washing and method for washing the apparatus | |
KR200379422Y1 (en) | Ultrasonic cleaner | |
JP3273339B2 (en) | Degreasing cleaning method and apparatus | |
WO1994015694A1 (en) | Method and device for removing liquid on a gauze conveyor and hollow roll comprising a tube for use in such a device | |
CA2196099C (en) | Produce washer | |
EP0147018B1 (en) | A washing device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 23025/99 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1999902937 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2320281 Country of ref document: CA Ref country code: CA Ref document number: 2320281 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09632766 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: KR |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: 1999902937 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 23025/99 Country of ref document: AU |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1999902937 Country of ref document: EP |