CN109287468A - A kind of non-circulating type hydroponic device - Google Patents
A kind of non-circulating type hydroponic device Download PDFInfo
- Publication number
- CN109287468A CN109287468A CN201811453782.9A CN201811453782A CN109287468A CN 109287468 A CN109287468 A CN 109287468A CN 201811453782 A CN201811453782 A CN 201811453782A CN 109287468 A CN109287468 A CN 109287468A
- Authority
- CN
- China
- Prior art keywords
- slot
- planting groove
- separate slot
- water level
- level controller
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The invention discloses a kind of non-circulating type hydroponic devices, it include: water level controller, planting groove, separate slot and the slot cover being removably fastened on planting groove, water level controller is set in planting groove, separate slot is placed in planting groove along planting groove length direction, it is formed between separate slot and plantation trough wall surface and send aquaporin, implantation hole is offered in slot cover, slot cover extends along planting groove length direction, water level controller water outlet is connected to aquaporin is sent, water level controller to after sending aquaporin to be sent into nutrient solution, flow out by gap of the nutrient solution between separate slot and planting groove.The tidal level controller of the gravity that the present invention uses and buoyancy-driven, constructs acyclic hydroponic device, thoroughly solves the problems, such as energy dependence, nutrient solution contamination；By the way that the separate slot of arch is arranged in plantation trench bottom, thoroughly solves the nutrient solution supply problem of plantation trench bottom, preferably improve ingredient unbalance.
Description
Technical field
The present invention relates to a kind of hydroponic device, in particular to a kind of non-circulating type hydroponic device.
Background technique
Solution culture facilities are generally divided into circular form and non-circulation type, and non-circulation type structure is simple, durable, low in cost, but because
To be difficult to carry out lasting monitoring, it is easy to appear anoxic, overnutrition and water waste, causes environmental pollution.Wherein circular form
Water planting is divided into ring type circulation and reciprocating circulation again.Circular form solution culture facilities structure is relative complex, though lasting prison can be carried out
Control, but the more unmanageable than non-circulation type, energy dependence, nutrient solution pollution, fluctuation of concentration, ingredient is unbalance is to perplex circular form water
Train the four major problem of facility.
Nutrient solution contamination: nutrient solution is sent to root system of plant by water supplying pipe, can carry out mass exchange, a side with root system
Nutrient and water-soluble oxygen are supplied in face, and the cell tissue and bacterium that another aspect root system falls off can also enter nutrient solution, if certain strain is planted
Object is caught an illness, and germ can enter nutrition liquid pool by return pipe, to make contamination.This is that the natural of circulating water cultivating scheme lacks
It falls into, is generally solved by filtering and Sterilization Facility.But the access of Sterilization Facility is in addition to increasing cost, the type and range of sterilization
Also there is certain limitation.
Ingredient is unbalance: mainly following 5 classes of the nutrient solution unbalance factor of circulating water cultivating: first is that nutrient solution prescription itself carries
Non-nutritive ingredient, such as the sodium ion in sodium nitrate；Second is that the ion that hard water water source is included；Third is that controlling soda acid in production process
The ion spent and added；Fourth is that the secretion and cast of root system of plant；Fifth is that the product of microbial metabolism and decomposition.
Circular form solution culture facilities have the characteristics that water-saving fertilizer-saving, data are controllable, environmental pollution is small, extremely have to Commercial Growers
Benefit.Wherein pipeline type solution culture facilities structure is very suitable for nutrition Pendular ring type circulation, becomes the mainstream of business water planting plantation, but manage
Channel type solution culture facilities are also faced with change of crops root system cleaning difficulty, sterilize difficult ask while being perplexed by above four problems
Topic.Ring type circular form water planting also causes root system of plant long period of soaking in water, is easy anoxic, does not meet plant drought and waterlogging and alternately give birth to
Long rule.Tidal type (reciprocating) circular form water planting scheme can preferably solve the problems, such as that drought and waterlogging are alternately sterilized with the change of crops, plant
Growth efficiency is higher, but the above-mentioned four major problem no one that circulating water cultivating scheme faces is resolved.
Summary of the invention
For the technical problems in the prior art, the object of the present invention is to provide a kind of non-circulating type hydroponic devices.
The purpose of the invention is achieved by the following technical solution: a kind of non-circulating type hydroponic device, comprising: water level control
Device, planting groove, separate slot and the slot cover being removably fastened on planting groove, water level controller are set in planting groove, separate slot
It is placed in planting groove along planting groove length direction, is formed between separate slot and plantation trough wall surface and send aquaporin, kind is offered in slot cover
Hole is planted, slot cover extends along planting groove length direction, and water level controller water outlet is connected to aquaporin is sent, and water level controller is to sending water
After nutrient solution is sent into channel, gap outflow of the nutrient solution between separate slot and planting groove.
Preferably, planting groove includes slot ontology and valve chamber, and slot ontology is connect with valve chamber, and the valve chamber offers and separate slot
The installation opening that shape matches, separate slot are connected in installation opening, and the water level controller is set in valve chamber, and water level controller is used
In providing nutrient solution to valve chamber, aquaporin is sent to be connected to valve chamber.
Preferably, slot ontology is strip structure, offers more than two installation openings, the quantity and dress of slot ontology on valve chamber
It is identical with mouth, docking section is provided at each installation opening, docking section connects one to one with slot ontology, sets in each slot ontology
It is equipped with a separate slot, installation opening connects one to one with separate slot.
Preferably, controller connector is extended on the bottom wall of valve chamber, controller connector is connected to water level controller
In snorkel, controller connector is T shape column, and T shape column is put in snorkel, and ventilation is formed between T shape column and the wall surface of snorkel
Channel.
Preferably, the separate slot is arc separate slot or U-shaped separate slot, the opening down and and slot of arc separate slot or U-shaped separate slot
The bottom wall of ontology is in contact.
Preferably, the end of the epitaxial end of slot ontology is provided with capping, and have in the capping makes to seal for the insertion of slot ontology
Cover the engaging groove on the end for the epitaxial end for being fixed on slot ontology.
Preferably, cover rim is extended with " U "-shaped external plywood, and capping is protruding with fin, external plywood with it is convex
The engaging groove is formed between rib.
Preferably, the position that the fin corresponds to separate slot has the assembly rib to match with separate slot shape, the end of separate slot
It is joined between assembly rib and external plywood；The bottom wall of slot ontology is protruding with water conservancy diversion convex ribs, and the water conservancy diversion convex ribs are along planting groove
Length direction extends.
Preferably, the slot cover two sides are extended with elasticity and fasten edge, and two elasticity fasten edge and are fastened on planting groove respectively
Notch two sides be thus connected on planting groove；
The elasticity, which fastens edge, has circular arc buckle section, has the arc cooperated with the circular arc buckle section on planting groove
Load segment.
Preferably, the separate slot is domed, and domed separate slot opening down is simultaneously in contact with the bottom wall of slot ontology.
The present invention has the following advantages and effects with respect to the prior art:
1, the tidal level controller of the gravity used and buoyancy-driven of the invention, constructs acyclic hydroponic device,
Thoroughly solve the problems, such as energy dependence, nutrient solution contamination；It is thorough by the way that the separate slot of arch is arranged in plantation trench bottom
Bottom solves the nutrient solution supply problem of plantation trench bottom, preferably improves ingredient unbalance.
2, non-circulating type hydroponic device of the invention, which makes the root system of wherein certain plant of plant catch an illness, only will limit individual
It in planting groove, will not spread, thus fundamentally solving the problems, such as nutrient solution contamination.
3, the present invention is non-circulating type hydroponic device, there is no need to adjust pH value, the ion not added additionally；Micro- life
Object and root system of plant residue are not easy to accumulate；It is just supplemented because each nutrient solution has blotted, salt accumulation problem and battalion is not present
Nutrient solution tail liquid emissions problem；The present invention can take the water source of pure water, thoroughly solve the problems, such as that water source carries salinity.Solution of the present invention
Determined 3 influenced in 5 class factor of nutrient solution nutrient balance, greatly improves the situation of nutrient solution nutrient imbalance.
4, slot cover can keep the sun off, and can reduce moisture evaporation to reduce the amplitude of nutrient solution concentration fluctuation improves battalion
The problem of nutrient solution fluctuation of concentration.Slot cover can be easy to open, therefore cleaning of changing crops is very convenient.
5, the present invention has preferably taken into account the relationship of capital investment, operation cost and environmental ecology, is energy conservation type, ring
The modern agriculture solution culture facilities of border friendly, labour intensive type, can energy-saving and emission-reduction, adapt to environmental improvement dynamics and constantly reinforce
Trend and the continuous downward trend of agricultural population.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the schematic diagram that two slot ontologies of the invention are connected to valve chamber two sides；
Fig. 3 is the schematic diagram that water level controller of the invention is installed in valve chamber；
Fig. 4 is the assembly relation schematic diagram of planting groove and separate slot of the present invention；
Fig. 5 is the structural schematic diagram of valve chamber of the invention；
Fig. 6 is the structural schematic diagram of capping of the invention；
Fig. 7 is the structural schematic diagram of separate slot of the invention；
Fig. 8 is the structural schematic diagram of slot cover of the invention；
Fig. 9 is the structural schematic diagram of slot ontology of the invention.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
A kind of non-circulating type hydroponic device, comprising: water level controller 1, planting groove, separate slot 2 and be removably fastened on
Slot cover 3 on planting groove, water level controller 1 are set in planting groove, and separate slot 2 is placed in planting groove along planting groove length direction
In, it is formed between separate slot 2 and plantation trough wall surface and send aquaporin-4, implantation hole 5 is offered in slot cover 3, slot cover 3 is along plantation slot length side
To extension, 1 water outlet of water level controller is connected to aquaporin-4 is sent, and water level controller 1 is sought to after sending aquaporin-4 to be sent into nutrient solution
Nutrient solution flows out between separate slot 2 and the gap of plantation groove bottom wall.It is molten with element needed for plant growth that the nutrient solution is water or water
Liquid etc..
The water level controller is the water level controller of number of patent application 201610414328.7.
Preferably, planting groove includes slot ontology 6 and valve chamber 7, and slot ontology 6 is connect with valve chamber 7, and the valve chamber 7 offers
The installation opening 8 to match with 2 shape of separate slot, separate slot 2 are connected in installation opening 8.The water level controller 1 is set in valve chamber 7,
Water level controller 1 is used to provide nutrient solution to valve chamber 7, and aquaporin-4 is sent to be connected to valve chamber 7.
Controller connector 16 is extended on the bottom wall of valve chamber, controller connector 16 is connected to the logical of water level controller 1
In tracheae, controller connector 16 is T shape column, and T shape column is put in snorkel, and ventilation is formed between T shape column and the wall surface of snorkel
Channel.
T shape column can fix water level controller 1, while also be able to maintain unobstructed, the air of the snorkel of water level controller 1
1 inner cavity of water level controller can be can smoothly enter into.
Preferably, slot ontology 6 is strip structure, offers more than two installation openings 8, the quantity of slot ontology 6 on valve chamber 7
It is identical as installation opening 8, docking section is provided at each installation opening 8, docking section connects one to one with slot ontology 6, each slot
A separate slot 2 is provided in ontology 6, installation opening 8 connects one to one with separate slot 2.
Such as: slot ontology 6 is set as two, and two bar groove ontologies 6 are installed on the opposite two sides of valve chamber 7, in each slot ontology 6
One separate slot 2 is set, and each separate slot 2 is docked with corresponding installation opening 8 respectively.To make the nutritious liquid supply of two bar groove ontologies 6.
Preferably, it is uniformly provided with implantation hole 5 along its length in slot cover 3.
Preferably, the separate slot 2 is arc separate slot 2 or U-shaped separate slot 2, arc separate slot 2 or U-shaped separate slot 2 it is opening down simultaneously
It is in contact with the bottom wall of slot ontology 6.
Preferably, the end of the epitaxial end 9 of slot ontology 6 is provided with capping 10, has in the capping 10 and inserts for slot ontology 6
Enter the engaging groove 11 on the end for the epitaxial end 9 for making capping 10 be fixed on slot ontology 6.
Preferably, 10 edges of capping are extended with " U "-shaped external plywood 12, and capping 10 is protruding with fin 13, external
The engaging groove 11 is formed between plywood 12 and fin 13.
Preferably, the position of the corresponding separate slot 2 of the fin 13 has the assembly rib 14 to match with 2 shape of separate slot, separate slot 2
End be joined to assembly rib 14 and external plywood 12 between, so that the end part seal of the epitaxial end 9 of slot ontology 6 be got up, keep away
Exempt from the leakage of nutrient solution.
Preferably, the bottom wall of slot ontology 6 is protruding with water conservancy diversion convex ribs 15, and the water conservancy diversion convex ribs 15 are along planting groove length direction
Extend.
Preferably, the separate slot is domed, and domed separate slot opening down is simultaneously in contact with the bottom wall of slot ontology.
The slot cover two sides are extended with elasticity and fasten edge 17, and two elasticity fasten the slot that edge 17 is fastened on planting groove respectively
Mouth two sides are thus connected on planting groove；
The elasticity, which fastens edge 17, has circular arc buckle section 18, has on planting groove and cooperates with the circular arc buckle section 18
Arc load segment 19.
When water level controller is sent into nutrient solution to valve chamber, nutrient solution is flowed into sending of being formed between separate slot and planting groove wall surface
In aquaporin, due to having gap between separate slot and planting groove wall surface, nutrient solution is sent in aquaporin flow process on edge,
It is flowed out from gap, so that the plant for different location provides the nutrient solution of same concentrations, avoids the plant close to nutrient solution source
Overnutrition and far from nutrient solution source plant lack nutrition the problem of occur.
Water level controller is responsible for controlling water level, and the nutrient solution in planting groove is allow to automatically derive supply, reduces artificial prison
It surveys, reduces labor intensity；Valve chamber is responsible for through the fixed water level controller 1 of controller connector 16 to reach rising for control water level
Begin height；By installation opening 8 and the cooperation of assembly rib 14 to which separate slot 2 be fixed up.As sending the separate slot of water negative to planting groove
Duty isolation root system, ensures nutrient solution supply；Planting groove is responsible for storing nutrient solution, provides plant root growth space, planting groove is also
Fixation bracket as slot cover；Slot cover is responsible for shading and fixed plant；Capping is responsible for from the fixed separate slot in separate slot one end and keeps planting
The water level in slot is planted, prevents from leaking.
The present invention solve the problems, such as power consumption, disease's spread, disinfection it is difficult simultaneously also with output stabilization, zero-emission, at
The advantages of this low, easy to clean and suitable drought and waterlogging is alternately planted.
Slot cover of the invention can be disassembled from planting groove, thus convenient sterilizing and cleaning plant undesirable root, slot cover disassembly
It after getting off, can make to obtain sunlight direct irradiation inside planting groove, therefore, reach disinfection and dry efficient effect rapidly.
Separate slot can smoothly feed nutrient solution in time, while be effectively isolated root system, and avoiding root system blocking planting groove causes
Nutrient solution overflow the problem of.
The present invention is that non-circulating type hydroponic device has the advantages that clean, sanitary, root diseases isolation effect is good.
The present invention uses slot type moulding, and utilization of area is high-efficient, low unit cost.
Water level controller is changed by the water level height of control nutrient solution, and root system of plant is made alternately to be exposed to air and nutrition
In liquid, the alternate environment of drought and waterlogging is formed in root zone, nutrient and oxygen supply are sufficient, and plant growth is rapid.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of non-circulating type hydroponic device, characterized by comprising: water level controller, planting groove, separate slot and removably
The slot cover being fastened on planting groove, water level controller are set in planting groove, and separate slot is placed in plantation along planting groove length direction
In slot, is formed between separate slot and plantation trough wall surface and send aquaporin, implantation hole is offered in slot cover, slot cover is prolonged along planting groove length direction
Stretch, water level controller water outlet is connected to aquaporin is sent, water level controller to send aquaporin be sent into nutrient solution after, nutrient solution every
Gap outflow between slot and planting groove.
2. non-circulating type hydroponic device according to claim 1, which is characterized in that planting groove includes slot ontology and valve
Chamber, slot ontology are connect with valve chamber, and the valve chamber offers the installation opening to match with separate slot shape, and separate slot is connected to installation opening
In, the water level controller is set in valve chamber, and water level controller is used to provide nutrient solution to valve chamber, and aquaporin and valve chamber is sent to connect
It is logical.
3. non-circulating type hydroponic device according to claim 2, which is characterized in that slot ontology is strip structure, on valve chamber
More than two installation openings are offered, the quantity of slot ontology is identical as installation opening, and docking section is provided at each installation opening, right
Socket part connects one to one with slot ontology, and a separate slot is provided in each slot ontology, and installation opening connects one to one with separate slot.
4. non-circulating type hydroponic device according to claim 2, which is characterized in that be extended with controller on the bottom wall of valve chamber
Connector, controller connector are connected in the snorkel of water level controller, and controller connector is T shape column, and T shape column puts in logical
In tracheae, venting channels are formed between T shape column and the wall surface of snorkel.
5. non-circulating type hydroponic device according to claim 3, which is characterized in that the separate slot is arc separate slot or U-shaped
Separate slot, arc separate slot or U-shaped separate slot opening down is simultaneously in contact with the bottom wall of slot ontology.
6. non-circulating type hydroponic device according to claim 3, which is characterized in that the end of the epitaxial end of slot ontology is arranged
There is capping, there is the engaging groove on the end for the epitaxial end for making capping be fixed on slot ontology for the insertion of slot ontology in the capping.
7. non-circulating type hydroponic device according to claim 6, which is characterized in that cover rim is extended with " U "-shaped
External plywood, capping are protruding with fin, form the engaging groove between external plywood and fin.
8. non-circulating type hydroponic device according to claim 7, which is characterized in that the fin corresponds to the position tool of separate slot
There is the assembly rib to match with separate slot shape, the end of separate slot is joined between assembly rib and external plywood；The bottom wall of slot ontology
Water conservancy diversion convex ribs are protruding with, the water conservancy diversion convex ribs extend along planting groove length direction.
9. non-circulating type hydroponic device according to claim 1, which is characterized in that the slot cover two sides are extended with elastic buckles
Edge is closed, the notch two sides that two elasticity fastening edges are fastened on planting groove respectively are thus connected on planting groove；
The elasticity, which fastens edge, has circular arc buckle section, and there is the arc cooperated with the circular arc buckle section to assemble on planting groove
Section.
10. non-circulating type hydroponic device according to claim 3, which is characterized in that the separate slot is domed, domed
Separate slot opening down is simultaneously in contact with the bottom wall of slot ontology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811453782.9A CN109287468A (en) | 2018-11-30 | 2018-11-30 | A kind of non-circulating type hydroponic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811453782.9A CN109287468A (en) | 2018-11-30 | 2018-11-30 | A kind of non-circulating type hydroponic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109287468A true CN109287468A (en) | 2019-02-01 |
Family
ID=65142107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811453782.9A Withdrawn CN109287468A (en) | 2018-11-30 | 2018-11-30 | A kind of non-circulating type hydroponic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109287468A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112106637A (en) * | 2020-10-09 | 2020-12-22 | 合肥创农生物科技有限公司 | Tide type water culture device |
| CN112806249A (en) * | 2021-02-01 | 2021-05-18 | 李正保 | Vegetable water culture device convenient to clean |
-
2018
- 2018-11-30 CN CN201811453782.9A patent/CN109287468A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112106637A (en) * | 2020-10-09 | 2020-12-22 | 合肥创农生物科技有限公司 | Tide type water culture device |
| CN112806249A (en) * | 2021-02-01 | 2021-05-18 | 李正保 | Vegetable water culture device convenient to clean |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202310799U (en) | Intelligent miniature plant domestic factory | |
| US20050244957A1 (en) | Regenerating tank | |
| CN108975614A (en) | The operational method of biogas slurry Ecological Disposal cultivating system | |
| CN208047731U (en) | A kind of duckling cultivating system | |
| CN107318621A (en) | Ecological water self-loopa fruits and vegetables and aquatic products integral type cultural method and special purpose device | |
| CN209170995U (en) | A kind of fish and vegetable symbiotic device | |
| CN109287468A (en) | A kind of non-circulating type hydroponic device | |
| CN110463627A (en) | A kind of annual artificial fecundation method of mandarin fish | |
| CN111567279A (en) | Seedling culture device for farming | |
| CN209251317U (en) | A kind of non-circulating type hydroponic device | |
| CN109699488A (en) | The production method and its hydroponic culture system of pure sprouting ginseng | |
| JP2017143801A (en) | Plant cultivation method | |
| KR20190128401A (en) | Ginseng water culture apparatus | |
| CN111567348A (en) | Flue-cured tobacco seedling raising control method, system and device and flue-cured tobacco seedling raising method | |
| CN205431387U (en) | Equipment of planting is tilld to vapour | |
| CN204762863U (en) | Aquaculture case | |
| CN209957772U (en) | A device for photosynthetic bacteria culture | |
| CN208462637U (en) | One kind purifies water with ecological circulation type water plant culture apparatus | |
| CN207626211U (en) | A kind of circulatory system between plantation and cultivation | |
| CN206923381U (en) | A kind of full-automatic vegetable planting machine | |
| CN104813952A (en) | Zero-emission ecological obstetric table for sow | |
| CN217160586U (en) | Small-size forage grass batch production device | |
| CN204796245U (en) | Domestic fungus breeding device | |
| CN207519354U (en) | A kind of peanut sprout culture apparatus | |
| CN1288967C (en) | Culture device and its application for culturing in crustacean copepod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190201 |
|
| WW01 | Invention patent application withdrawn after publication |