CN112824624A - Bamboo fiber decorative board with ultralow water absorption rate - Google Patents

Bamboo fiber decorative board with ultralow water absorption rate Download PDF

Info

Publication number
CN112824624A
CN112824624A CN201911143934.XA CN201911143934A CN112824624A CN 112824624 A CN112824624 A CN 112824624A CN 201911143934 A CN201911143934 A CN 201911143934A CN 112824624 A CN112824624 A CN 112824624A
Authority
CN
China
Prior art keywords
decorative board
water absorption
decorative
wood fiber
ultra
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Withdrawn
Application number
CN201911143934.XA
Other languages
Chinese (zh)
Inventor
刘胜军
王桂章
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taojiang Xinsheng Bamboo Industry Co ltd
Original Assignee
Taojiang Xinsheng Bamboo Industry Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taojiang Xinsheng Bamboo Industry Co ltd filed Critical Taojiang Xinsheng Bamboo Industry Co ltd
Priority to CN201911143934.XA priority Critical patent/CN112824624A/en
Publication of CN112824624A publication Critical patent/CN112824624A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0866Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements composed of several layers, e.g. sandwich panels or layered panels
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0889Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0889Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • E04F13/0894Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with tongue and groove connections
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00Joining sheets or plates or panels
    • E04F2201/02Non-undercut connections, e.g. tongue and groove connections
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)

Abstract

The invention relates to the technical field of bamboo and wood fiber decorative plates, and discloses an ultra-low water absorption bamboo and wood fiber decorative plate which comprises a decorative plate body, wherein connecting blocks are integrally formed on the upper surface and the right side of the decorative plate body, connecting grooves are formed in the left side and the lower surface of the decorative plate body, the two connecting blocks and the two connecting grooves are both in a wedge-shaped structure, and the two connecting blocks and the two connecting grooves are in one-to-one correspondence; through being equipped with the connecting block on upper surface and right side to be equipped with the spread groove on left side and lower surface, when installing the decorative board, can splice polylith decorative board together at first, then install fixedly in the front, install more swiftly like this, and in the use in the future, when one of them decorative board is fixed insecure with the wall, through the joint support of decorative board all around, can avoid the decorative board to take place the condition that drops.

Description

Bamboo fiber decorative board with ultralow water absorption rate
Technical Field
The invention relates to the technical field of bamboo and wood fiber decorative plates, in particular to a bamboo and wood fiber decorative plate with ultralow water absorption rate.
Background
Bamboo fiber is cellulose fiber extracted from naturally growing bamboos, and is the fifth natural fiber after cotton, hemp, wool and silk, the bamboo fiber has the characteristics of good air permeability, instant water absorbability, strong wear resistance, good dyeing property and the like, and has the functions of natural antibiosis, bacteriostasis, mite removal, deodorization and ultraviolet resistance.
But current bamboo wood fiber decorative board is at the in-process that uses, need fix on the wall through nail or fixed glue one, and need align each panel when fixed, delay time like this, and current bamboo wood fiber decorative board is because it has the hydroscopicity, after the waterproof problem of appearance of house wall, bamboo wood fiber decorative board can absorb moisture, thereby lead to the decorative board to appear absorbing water and bulging's the condition easily, and then lead to the bamboo wood fiber decorative board to appear the condition of damaging easily.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a bamboo fiber decorative plate with ultralow water absorption rate, which solves the problems that the time is delayed in the installation and fixation process of the conventional bamboo fiber decorative plate, and the conventional bamboo fiber decorative plate is easy to absorb water and swell after the water resistance of the wall surface is failed, so that the conventional bamboo fiber decorative plate is damaged.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an ultralow water absorption rate bamboo wood fiber decorative board, includes the decorative board body, the integrated into one piece in upper surface and the right side of decorative board body has the connecting block, just the spread groove has all been seted up to the left side and the lower surface of decorative board body, two the connecting block is with two the spread groove is the wedge structure, and two the connecting block is with two the spread groove one-to-one.
Preferably, the outer surface of the connecting block and the inner surface of the connecting groove are both subjected to rough treatment, and the thickness and the length of the connecting block are matched with the depth and the length of the connecting groove.
Preferably, a protective layer is fixed on the front surface of the decorative plate body and comprises two shock absorption pads, and a buffer pad is fixed between the two shock absorption pads.
Preferably, the shock absorption pad is made of rubber, and the buffer pad is made of sponge.
Preferably, waterproof boards are fixed on the rear surface of the decorative board body and the front surface of the protective layer, and the waterproof boards are made of PTFE materials.
Preferably, the upper surface, the lower surface and the two sides of the two waterproof boards are respectively fixed with a sealing thin pad, and the sealing thin pads are made of soft rubber.
Preferably, the front surface of waterproof board is fixed with the pattern board, the pattern board is located the place ahead of decorative board body, and the outer surface coating of pattern board has oleophobic hydrophobic coating.
(III) advantageous effects
The invention provides an ultra-low water absorption bamboo fiber decorative board, which has the following beneficial effects:
(1) the decorative plate is provided with the connecting blocks on the upper surface and the right side, and the connecting grooves on the left side and the lower surface, so that a plurality of decorative plates can be firstly spliced together and then installed and fixed on the front surface when the decorative plates are installed, the installation is quicker, and in the use process in the future, when one decorative plate is not firmly fixed with the wall surface, the decorative plates can be prevented from falling off through the connecting supports of the decorative plates on the periphery.
(2) According to the invention, the waterproof plates are arranged on the front surface and the rear surface, so that the situation that the decorative plate body absorbs water and expands to cause damage after the wall surface is waterproof, and the thin sealing pads on the two waterproof plates are tightly attached together after the decorative plate is installed, so that the gap between the two decorative plates is sealed, and the situation that water vapor enters from the gap and is absorbed by the decorative plate body to cause water absorption of the decorative plate is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a protective layer according to the present invention;
fig. 3 is a schematic structural view of the waterproof sheet of the present invention.
In the figure: 1. a pattern plate; 2. connecting grooves; 3. connecting blocks; 4. a decorative plate body; 5. a protective layer; 501. a shock absorbing pad; 502. a cushion pad; 6. a waterproof sheet; 7. the thin pad is sealed.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, the present invention provides a technical solution: a bamboo-wood fiber decorative board with ultra-low water absorption rate comprises a decorative board body 4, connecting blocks 3 are integrally formed on the upper surface and the right side of the decorative board body 4, connecting grooves 2 are formed in the left side and the lower surface of the decorative board body 4, the two connecting blocks 3 and the two connecting grooves 2 are of wedge-shaped structures, the two connecting blocks 3 correspond to the two connecting grooves 2 one by one, when the decorative board is installed and fixed, a plurality of decorative board bodies 4 are firstly spliced and fixed together through the two connecting blocks 3 and the two connecting grooves 2, then the spliced decorative board bodies 4 are fixed on a wall surface, compared with the existing decorative board fixing mode, the mode is more rapid, after the installation is finished, in the using process in the future, after one decorative board is released and is infirm to the wall body, the decorative board can be connected and fixed through other decorative boards around, the situation that the decorative plate falls off is avoided.
Further, the surface of connecting block 3 and the internal surface of spread groove 2 all pass through rough treatment, and the thickness of connecting block 3 and the degree of depth and the length looks adaptation of length and spread groove 2, after a plurality of decorative board bodies 4 splice each other fixedly together, through the frictional force between connecting block 3 and spread groove 2, connecting block 3 can be firm fix in spread groove 2, avoid taking place the condition that breaks away from each other between a plurality of decorative board bodies 4.
Further, decorative board body 4's front surface is fixed with inoxidizing coating 5, inoxidizing coating 5 includes that two inhale and shake pad 501, two are inhaled and are fixed with blotter 502 between the pad 501, when decorative board body 4 is in the in-process of using, after the condition of being strikeed takes place, inhale and shake pad 501 through two in the inoxidizing coating 5, can absorb the produced vibrations of striking, and can cushion the striking through blotter 502, thereby can be very big protection decorative board body 4, avoid decorative board body 4 to appear the condition of damaging.
Further, the shock absorbing pad 501 is made of rubber, the cushion pad 502 is made of sponge, the shock absorbing pad 501 can absorb shock generated by impact, and the cushion pad 502 can cushion the impact.
Further, the rear surface of decorative board body 4 and the front surface of inoxidizing coating 5 all are fixed with waterproof board 6, and two waterproof boards 6 are the PTFE material, behind wall or indoor waterproof problem, through two waterproof boards 6, can avoid decorative board body 4 to appear absorbing water and sending out bloated to lead to decorative board body 4 to appear the condition of damaging.
Further, the upper surface and the lower surface and both sides of two waterproof boards 6 all are fixed with sealed thin pad 7, sealed thin pad 7 is the flexible glue material, simultaneously when 4 concatenations of a plurality of decorative board bodies are fixed together the back, sealed thin pad 7 on a plurality of waterproof boards 6 can inseparable laminating be in the same place to can seal up the clearance between a plurality of decorative board bodies 4, avoid external steam to pass through the clearance entering between the decorative board body 4, thereby lead to decorative board body 4 to take place to absorb water the condition of sending out bloated.
Further, the front surface of the waterproof plate 6 is fixed with the pattern plate 1, the pattern plate 1 is located in front of the decorative plate body 4, the outer surface of the pattern plate 1 is coated with the oleophobic and hydrophobic coating, and in the using process, after a child randomly coats a random picture on the decorative plate, the picture stain on the device plate can be removed through paper towels or cleaning cloth, so that the attractiveness of the device plate is ensured.
In conclusion, the working process of the invention is as follows: when the decorative plate is installed and fixed, firstly, a plurality of decorative plate bodies 4 are spliced and fixed together through two connecting blocks 3 and two connecting grooves 2, then, the spliced decorative plate bodies 4 are fixed on the wall surface, compared with the existing decorative plate fixing mode, the mode is more rapid, and after the installation is finished, in the use process in the future, after one decorative plate is released and is not firmly fixed with the wall body, the decorative plate can be connected and fixed through other decorative plates on the periphery, the decorative plate is prevented from falling off, and after the problem of water resistance of the wall surface or indoor occurs, the water absorption and expansion of the decorative plate bodies 4 can be avoided through two waterproof plates 6, so that the decorative plate bodies 4 are damaged, and simultaneously, after the decorative plate bodies 4 are spliced and fixed together, the sealed thin pad 7 on a plurality of waterproof boards 6 can be inseparable laminating be in the same place to can seal up the clearance between a plurality of decorative board bodies 4, avoid external steam to pass through the clearance entering between the decorative board body 4, thereby lead to decorative board body 4 to take place to absorb water and send out the condition of bloated.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an ultralow water absorption bamboo wood fiber decorative board, includes decorative board body (4), its characterized in that: the upper surface and the equal integrated into one piece in right side of decorative board body (4) have connecting block (3), just spread groove (2), two have all been seted up to the left side and the lower surface of decorative board body (4) connecting block (3) and two spread groove (2) are the wedge structure, and two connecting block (3) and two spread groove (2) one-to-one.
2. The ultra-low water absorption bamboo wood fiber decorative board of claim 1, which is characterized in that: the outer surface of connecting block (3) with the internal surface of spread groove (2) all passes through rough treatment, just the thickness and the length of connecting block (3) with the degree of depth and the length looks adaptation of spread groove (2).
3. The ultra-low water absorption bamboo wood fiber decorative board of claim 1, which is characterized in that: the front surface of decorative board body (4) is fixed with inoxidizing coating (5), inoxidizing coating (5) are including two inhale shake pad (501), two it is fixed with blotter (502) to inhale between shake pad (501).
4. The ultra-low water absorption bamboo wood fiber decorative plate of claim 3, which is characterized in that: the shock absorption pad (501) is made of rubber, and the buffer pad (502) is made of sponge.
5. The ultra-low water absorption bamboo wood fiber decorative board of claim 4, wherein: the rear surface of decorative board body (4) and the front surface of inoxidizing coating (5) all is fixed with waterproof board (6), two waterproof board (6) are the PTFE material.
6. The ultra-low water absorption bamboo wood fiber decorative plate of claim 5, which is characterized in that: the upper surface, the lower surface and the two sides of the two waterproof plates (6) are respectively fixed with a sealing thin pad (7), and the sealing thin pads (7) are made of soft rubber.
7. The ultra-low water absorption bamboo wood fiber decorative board of claim 6, wherein: the front surface of waterproof board (6) is fixed with pattern board (1), pattern board (1) is located the place ahead of decorative board body (4), just the surface coating of pattern board (1) has oleophobic hydrophobic coating.
CN201911143934.XA 2019-11-20 2019-11-20 Bamboo fiber decorative board with ultralow water absorption rate Withdrawn CN112824624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911143934.XA CN112824624A (en) 2019-11-20 2019-11-20 Bamboo fiber decorative board with ultralow water absorption rate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911143934.XA CN112824624A (en) 2019-11-20 2019-11-20 Bamboo fiber decorative board with ultralow water absorption rate

Publications (1)

Publication Number Publication Date
CN112824624A true CN112824624A (en) 2021-05-21

Family

ID=75907031

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911143934.XA Withdrawn CN112824624A (en) 2019-11-20 2019-11-20 Bamboo fiber decorative board with ultralow water absorption rate

Country Status (1)

Country Link
CN (1) CN112824624A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110847556A (en) * 2019-11-28 2020-02-28 湖南麓上住宅工业科技有限公司 Wood floor with anti-falling effect
CN115030433A (en) * 2022-07-01 2022-09-09 何其佳 Composite decorative plate and manufacturing method thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2109422U (en) * 1991-12-26 1992-07-08 湖南省长沙工艺竹品厂 Bamboo connecting board
CN2535489Y (en) * 2001-11-15 2003-02-12 东莞玮荣竹木制品有限公司 Connection structure of bamboo board
EP2957691A1 (en) * 2014-06-20 2015-12-23 Chinafloors Holding Limited Panel suitable for assembling a waterproof floor or wall covering, method of producing a panel
CN105421700A (en) * 2015-11-26 2016-03-23 重庆施福乐建材股份有限公司 Waterproof ceramic tile
CN106437067A (en) * 2016-11-25 2017-02-22 桂林永福龙港绿色环保建材有限公司 Novel external wall multifunctional insulation board
CN206070926U (en) * 2016-06-06 2017-04-05 新干县大友建材实业有限公司 A kind of bamboo and wood materials 3d stereoscopic picture plane decorative panels
CN206495448U (en) * 2017-01-20 2017-09-15 深圳市前海格锐建筑技术有限公司 A kind of water proof exterior wall plate
CN208072842U (en) * 2018-04-18 2018-11-09 陈思恩 A kind of bathroom wallboard with tumble impact protector function
CN208220051U (en) * 2018-03-06 2018-12-11 上海林音实业发展有限公司 A kind of plate with cushion performance

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2109422U (en) * 1991-12-26 1992-07-08 湖南省长沙工艺竹品厂 Bamboo connecting board
CN2535489Y (en) * 2001-11-15 2003-02-12 东莞玮荣竹木制品有限公司 Connection structure of bamboo board
EP2957691A1 (en) * 2014-06-20 2015-12-23 Chinafloors Holding Limited Panel suitable for assembling a waterproof floor or wall covering, method of producing a panel
CN105421700A (en) * 2015-11-26 2016-03-23 重庆施福乐建材股份有限公司 Waterproof ceramic tile
CN206070926U (en) * 2016-06-06 2017-04-05 新干县大友建材实业有限公司 A kind of bamboo and wood materials 3d stereoscopic picture plane decorative panels
CN106437067A (en) * 2016-11-25 2017-02-22 桂林永福龙港绿色环保建材有限公司 Novel external wall multifunctional insulation board
CN206495448U (en) * 2017-01-20 2017-09-15 深圳市前海格锐建筑技术有限公司 A kind of water proof exterior wall plate
CN208220051U (en) * 2018-03-06 2018-12-11 上海林音实业发展有限公司 A kind of plate with cushion performance
CN208072842U (en) * 2018-04-18 2018-11-09 陈思恩 A kind of bathroom wallboard with tumble impact protector function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110847556A (en) * 2019-11-28 2020-02-28 湖南麓上住宅工业科技有限公司 Wood floor with anti-falling effect
CN115030433A (en) * 2022-07-01 2022-09-09 何其佳 Composite decorative plate and manufacturing method thereof

Similar Documents

Publication Publication Date Title
CN112824624A (en) Bamboo fiber decorative board with ultralow water absorption rate
CN200997273Y (en) Sound-proof shield
JP2023093414A (en) Laminate panel
CN208347184U (en) A kind of spliced decoration panel convenient for assembling
CN106906918A (en) A kind of clad can broadband acoustic board
CN110116526A (en) A kind of acoustic board with overlay
CN207260479U (en) A kind of non-woven material acoustical absorption wall paper
KR20090084599A (en) Porous sound absorbing pannel using the bark of paper mulberry
CN213449259U (en) Sound-absorbing composite soft bag
CN212025248U (en) High-temperature-resistant flame-retardant protective film
CN106930495A (en) A kind of Novel building decoration plank
CN106761294A (en) A kind of sound insulation tide gate
CN205836143U (en) A kind of acoustic board
CN215948752U (en) Waterproof ventilative type wall paper
CN212582934U (en) Building energy-saving insulation board
RU2353423C1 (en) Protective temperature-compensating membrane material
CN219080649U (en) Wall body sound insulation shock-absorbing structure
CN209649656U (en) A kind of novel anticracking wall clothing structure
CN218437937U (en) Environment-friendly cloth art acoustic panel of making an uproar falls in fire prevention
CN214615165U (en) Rock wool and porous gypsum board composite decoration acoustic board and sound absorption furred ceiling
CN214462011U (en) Sound insulation board with moisture-proof effect for interior decoration
CN215442844U (en) Fast-assembling building decorative panel
CN216974021U (en) Composite veneer with sound absorption function
CN216428680U (en) Noise reduction structure for room partition
CN219099043U (en) Elastic laminated combined sound absorbing cotton

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: 20210521

WW01 Invention patent application withdrawn after publication