CN105597950A - Water saving shower head and assembling method thereof - Google Patents
Water saving shower head and assembling method thereof Download PDFInfo
- Publication number
- CN105597950A CN105597950A CN201610008563.4A CN201610008563A CN105597950A CN 105597950 A CN105597950 A CN 105597950A CN 201610008563 A CN201610008563 A CN 201610008563A CN 105597950 A CN105597950 A CN 105597950A
- Authority
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- China
- Prior art keywords
- water
- inlet end
- valve seat
- water inlet
- spring
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/18—Roses; Shower heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/18—Roses; Shower heads
- B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Bathtubs, Showers, And Their Attachments (AREA)
Abstract
The invention provides a water saving shower head which is mainly composed of a screw, a pressure relief spring, an adjusting valve, a constant flow valve seat, a pressure relief valve seat and the like. The water saving shower head replaces a traditional shower head, the purpose of saving flow is achieved through adjustment of the adjusting valve and self-control capacity, and when water pressure is excessively large, the amount of water flow is not large and instead maintains within a set range; the purpose of adjusting the amount of water flow according to requirements is achieved by adjusting the position of the shower head in an adjusting cavity so as to adjust the prestress of the adjusting spring.
Description
Technical field
The present invention relates to a kind of water-saving shower with control valve that can set as required max water yield, belong to the optimization skill of gondola water faucetArt.
Background technology
Most gondola water faucet does not possess the effect of adjust flux conventionally, is mostly adopt angle valve to realize switch and control water outletAmount. Because water yield can only decide by the degree of opening angle valve, cause water yield to be difficult to control and control inaccuracy, realWhen border water, no matter hydraulic pressure height, a lot of users are to open conveniently in order to save trouble, and in the time that hydraulic pressure is higher, often causeThe water yield exceedes its actual demand, causes a large amount of wastes. Particularly hotel, hotel, whether client more can not note water yieldExcessive, conventionally directly switch is got to max water yield, usually cause unnecessary waste; At the peak period of bathing, Hen DuorenSimultaneously when water, also can cause some gondola water faucet water outlet too much, and the very few phenomenon of some gondola water faucet water outlet.
China is lack of water big country, and the cost of water is more and more higher, therefore, need to find one water yield adjusting automatically,Make water yield be stabilized in the water-saving shower in certain limit.
Summary of the invention
The object of the invention is: one water yield adjusting is automatically provided, makes water yield be stabilized in the water saving in certain limitGondola water faucet.
Technical scheme of the present invention is: a kind of water-saving shower, and mainly by screw 1, pressure release spring 2, control valve 3, permanent flow valveSeat 4, pressure release valve seat 5, relief valve 6, regulating spring 7, filter core 8, shell 9, spray 10 compositions, control valve 3 is provided withCentral through hole, the outer wall 31 of control valve is taper surface, establishes bossed hollow support post 32 in the water side of control valve 3,The water side of support column 32 endoporus is provided with support 33; Constant current valve seat 4 hollows, the endoporus of constant current valve seat 4 is from water inlet end to water outletThe direction of end is provided with successively bellmouth 41, bracing frame 42, regulates chamber 43; Described bellmouth 41 and the outer wall of control valve 3Being negative and positive coordinates; On the wall that regulates chamber 43, be provided with screw thread; Pressure release valve seat 5 is provided with central through hole, its water side endoporus with let outThe outer wall construction of pressure valve 6 is negative and positive and coordinates; The valve rod of relief valve 6 is provided with endoporus, is provided with screw thread on inner hole wall; Regulate bulletSpring 7 is made up of column spring and turriform spring serial connection, and column spring is positioned at water inlet end, the tower top diameter of turriform spring and column bulletSpring is identical; Described shell 9 is for being provided with the column of central through hole; Spray 10 and be provided with external screw thread towards the outer wall of water inlet end,Be provided with intensive spray orifice towards the end face of water side; Before use, regulate max water yield.
The direction of the outer wall of constant current valve seat 4 from water inlet end to water side is divided into two parts of joining, near the part of water inlet endIt is the location bead 44 to outer process.
The direction of the endoporus of shell from water inlet end to water side is divided into two sections, and the diameter of first paragraph is greater than the diameter of second segment.
Before use, sealing ring is filled in to its endoporus from the water inlet end of shell 9, be pressed onto the water inlet end edge of constant current valve seat 4, soAfter be screwed on tap water outlet mouth.
Spray the position of head at the hybrid chamber of constant current valve seat by adjusting, control max water yield, spraying a past water inlet endDirection twist, the water inlet end that sprays head is pressed regulating spring to the direction of water inlet end, the prestressing force of regulating spring is strengthened, therebyStrengthen water yield, otherwise reduce water yield.
When assembling, control valve 3 is filled in to the bellmouth 41 of constant current valve seat 4, made the newel 32 of control valve 3 through bracing frame42 centre bore, then pressure release valve seat 5 is filled in to constant current valve seat 4 from water side to the direction of water inlet end, make its inner hole sleeve be connected on tuneOn the newel 32 of joint valve 3; Relief valve 6 inserts its endoporus from the water side of pressure release valve seat 5, and propping up through control valve 3Frame 33; Pressure release spring 2 is filled in to its central through hole from the water inlet end of control valve 3, then screw 1 from water inlet end to water sideDirection through pressure release spring 2, be screwed in the endoporus of relief valve 6 valve rods; The column spring section of regulating spring 7 from constant currentThe water side of valve seat 4 is filled in it and is regulated chamber 43 and be screwed on the outer wall thread of pressure release valve seat 5; Filter core 8 from constant current valve seat 4Water side put into its regulate chamber 43; Again constant current valve seat 4 is filled in to its inner chamber from the water inlet end of shell 9, then spraying head10 fill in from the water side of shell 9, make to spray an external thread rotary of water intake end outer wall and be screwed in the inwall in the adjusting chamber of constant current valve seatOn screw thread, the direction to water inlet end compresses filter core from water side to spray head, and filter core compresses regulating spring again.
Beneficial effect
1, substitute traditional gondola water faucet with water-saving shower, the adjusting by control valve and self-control reach the object of throttling,In the time that hydraulic pressure is excessive, water yield can't be excessive, but automatically remain in the scope of setting;
2, spray head by adjustment and play adjusting water outlet as required at the prestressing force that regulates the position adjustment regulating spring in chamberThe object of amount.
Brief description of the drawings
Fig. 1 is blast structural representation of the present invention;
Fig. 2 is cross-sectional view of the present invention.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of water-saving shower, mainly by screw 1, pressure release spring 2, control valve 3, constant current valve seat4, pressure release valve seat 5, relief valve 6, regulating spring 7, filter core 8, shell 9, spray 10 compositions.
Control valve 3 is provided with central through hole, and the outer wall 31 of control valve is taper surface, establishes bossed in the water side of control valve 3Hollow support post 32, is provided with support 33 in the water side of support column 32 endoporus.
Constant current valve seat 4 hollows, the direction of the endoporus of constant current valve seat 4 from water inlet end to water side is provided with successively bellmouth 41, props upSupport 42, adjusting chamber 43; Described bellmouth 41 is negative and positive with the outer wall of control valve 3 and coordinates; The outer wall of constant current valve seat 4 fromWater inlet end is divided into two parts of joining to the direction of water side, is the location bead 44 to outer process near the part of water inlet end,On the wall that regulates chamber 43, be provided with screw thread.
Pressure release valve seat 5 is provided with central through hole, and its water side endoporus is negative and positive with the outer wall construction of relief valve 6 and coordinates; Relief valve 6Valve rod be provided with endoporus, on inner hole wall, be provided with screw thread; Regulating spring 7 is made up of column spring and turriform spring serial connection, postShape spring is positioned at water inlet end, and the tower top diameter of turriform spring is identical with column spring.
Described shell 9 is for being provided with the column of central through hole, and the direction of its endoporus from water inlet end to water side is divided into two sections,The diameter of first paragraph is greater than the diameter of second segment; Spray 10 and be provided with external screw thread towards the outer wall of water inlet end, towards water sideEnd face is provided with intensive spray orifice.
When assembling, control valve 3 is filled in to the bellmouth 41 of constant current valve seat 4, made the newel 32 of control valve 3 through bracing frame42 centre bore, then pressure release valve seat 5 is filled in to constant current valve seat 4 from water side to the direction of water inlet end, make its inner hole sleeve be connected on tuneOn the newel 32 of joint valve 3; Relief valve 6 inserts its endoporus from the water side of pressure release valve seat 5, and propping up through control valve 3Frame 33; Pressure release spring 2 is filled in to its central through hole from the water inlet end of control valve 3, then screw 1 from water inlet end to water sideDirection through pressure release spring 2, be screwed in the endoporus of relief valve 6 valve rods; The column spring section of regulating spring 7 from constant currentThe water side of valve seat 4 is filled in it and is regulated chamber 43 and be screwed on the outer wall thread of pressure release valve seat 5; Filter core 8 from constant current valve seat 4Water side put into its regulate chamber 43; Again constant current valve seat 4 is filled in to its inner chamber from the water inlet end of shell 9, then spraying head10 fill in from the water side of shell 9, make to spray an external thread rotary of water intake end outer wall and be screwed in the inwall in the adjusting chamber of constant current valve seatOn screw thread, the direction to water inlet end compresses filter core from water side to spray head, and filter core compresses regulating spring again.
Before use, sealing ring is filled in to its endoporus from the water inlet end of shell 9, be pressed onto the water inlet end edge of constant current valve seat 4, soAfter be screwed on tap water outlet mouth. Spray head at the prestressing force that regulates the position adjustment regulating spring in chamber by screwing to adjust, fromControl the object of max water yield and play. The disposable max water yield that regulates before using, it is large that later hydraulic pressure becomes, and water yield is alsoCan not increase, play the effect of water saving. To the water supply network at water-saving shower place, the position water yield that hydraulic pressure is large has been subject to control,Accordingly, the originally less position of hydraulic pressure, hydraulic pressure also just can be improved, and water yield is corresponding to be increased to some extent.
When work, open switch, water enters into water-saving shower, and the water inlet end face of water impact control valve, due to regulating spring 7Pressure-acting, control valve 3 is in open mode, current flow into and regulate chamber 43 from the gap between control valve and constant current valve seat,Enter and spray head through filter core 8, then eject from spray the spray orifice of a water side.
When the hydraulic pressure of the control valve 3 of flowing through larger, while being enough to overcome the prestressing force of regulating spring 7, control valve and constant current valve seat itBetween gap will be just little, the water yield that flows through leading constant current faucet will reduce, as hydraulic pressure now reduces, at regulating springUnder effect, the gap between control valve and constant current valve seat can become again greatly, thereby plays the constant current effect of current stabilization flow control. If flowed throughThe hydraulic pressure of control valve is large especially, exceedes the prestressing force of regulating spring, and at this moment, the gap between control valve and constant current valve seat is by completeBlock, powerful hydraulic pressure will promote relief valve 6 by the central through hole of control valve, and relief valve overcomes the pressure of pressure release spring,Space between relief valve and pressure release valve seat is opened, and current just flow into and regulate chamber from the central through hole of control valve. Like this with regard to energyEnough prevent from the time that hydraulic pressure is especially big, occurring cutout phenomenon, and ensure suitable water yield.
In actual use, user can, according to the actual needs of self, spray the hybrid chamber of head at constant current valve seat by adjustingPosition, control max water yield. Spray a past water inlet end direction twist, spray head water inlet end regulating spring to enteringThe direction of water end (W.E.) is pressed, and the prestressing force of regulating spring is strengthened, thereby strengthen water yield. Otherwise will reduce water yield.
Water-saving shower can not produce harmful effect to current in the time that hydraulic pressure is low, only has in the time that hydraulic pressure is excessive, just plays a role, and makesWater yield can be not excessive and excessive because of hydraulic pressure, for the residing water system of water-saving shower, just can play equalization of dischargeThe effect of amount, therefore, not affecting the effect of playing throttling under the normal prerequisite using of user, can also play balance water supply network systemThe effect of the water yield of different delivery ports in system.
Above-described embodiment is only for interpretation purposes of the present invention, and is not limitation of the present invention, the artThose of ordinary skill, in essential scope of the present invention, make a variety of changes or substitute, also should belong to protection model of the present inventionFarmland.
Claims (6)
1. a water-saving shower, mainly by screw (1), pressure release spring (2), control valve (3), constant current valve seat (4),Pressure release valve seat (5), relief valve (6), regulating spring (7), filter core (8), shell (9), spray head (10)Composition, is characterized in that: control valve (3) is provided with central through hole, the outer wall (31) of control valve is taper surface,Establish bossed hollow support post (32) in the water side of control valve (3), in going out of support column (32) endoporusWater end (W.E.) is provided with support (33); Constant current valve seat (4) hollow, the endoporus of constant current valve seat (4) is from water inlet end to water outletThe direction of end is provided with successively bellmouth (41), bracing frame (42), regulates chamber (43); Described bellmouth (41)Being negative and positive with the outer wall of control valve (3) coordinates; On the wall that regulates chamber (43), be provided with screw thread; Pressure release valve seat (5)Be provided with central through hole, its water side endoporus is negative and positive with the outer wall construction of relief valve (6) and coordinates; Relief valve (6)Valve rod be provided with endoporus, on inner hole wall, be provided with screw thread; Regulating spring (7) is by column spring and turriform springSerial connection forms, and column spring is positioned at water inlet end, and the tower top diameter of turriform spring is identical with column spring; DescribedShell (9) is for being provided with the column of central through hole; Spray head (10) and be provided with external screw thread towards the outer wall of water inlet end,Be provided with intensive spray orifice towards the end face of water side; Before use, regulate max water yield.
2. water-saving shower according to claim 1, is characterized in that: the outer wall of constant current valve seat (4) from water inlet end toThe direction of water side is divided into two parts of joining, and is the location bead to outer process near the part of water inlet end(44)。
3. water-saving shower according to claim 1, is characterized in that: the endoporus of shell is from water inlet end to water sideDirection is divided into two sections, and the diameter of first paragraph is greater than the diameter of second segment.
4. water-saving shower according to claim 4, is characterized in that: before use, by sealing ring from shell (9)Water inlet end is filled in its endoporus, is pressed onto the water inlet end edge of constant current valve seat (4), is then screwed on tap water outlet mouth.
5. water-saving shower according to claim 1, is characterized in that: spray head mixing at constant current valve seat by adjustingClose the position in chamber, control max water yield, the direction that sprays a past water inlet end is twisted, spray the water inlet end of headRegulating spring is pressed to the direction of water inlet end, the prestressing force of regulating spring is strengthened, thereby strengthen water yield, anti-Minimizing water yield.
6. the assemble method of the water-saving shower described in claim 1-5 any one, is characterized in that: when assembling, regulatingValve (3) is filled in the bellmouth (41) of constant current valve seat (4), and the newel (32) of control valve (3) is passedThe centre bore of bracing frame (42), then pressure release valve seat (5) from water side the direction to water inlet end fill in permanent flow valveSeat (4), is connected on the newel (32) of control valve (3) its inner hole sleeve; Relief valve (6) is from relief valveIts endoporus is inserted in the water side of seat (5), and passes the support (33) of control valve (3); Pressure release spring (2)Fill in its central through hole from the water inlet end of control valve (3), then screw (1) side from water inlet end to water sideTo through pressure release spring (2), be screwed in the endoporus of relief valve (6) valve rod; The column of regulating spring (7)Spring section is filled in it and is regulated chamber (43) and be screwed in pressure release valve seat (5) from the water side of constant current valve seat (4)On outer wall thread; Filter core (8) is put into it from the water side of constant current valve seat (4) and regulated chamber (43); AgainConstant current valve seat (4) is filled in to its inner chamber from the water inlet end of shell (9), then spraying head (10) from shell (9)Water side fill in, make to spray an external thread rotary of water intake end outer wall and be screwed in the inwall spiral shell in the adjusting chamber of constant current valve seatOn line, the direction to water inlet end compresses filter core from water side to spray head, and filter core compresses regulating spring again.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310137378.1A CN104107765B (en) | 2013-04-19 | 2013-04-19 | Water-saving shower |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310137378.1A Division CN104107765B (en) | 2013-04-19 | 2013-04-19 | Water-saving shower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105597950A true CN105597950A (en) | 2016-05-25 |
Family
ID=51704868
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610008563.4A Pending CN105597950A (en) | 2013-04-19 | 2013-04-19 | Water saving shower head and assembling method thereof |
| CN201310137378.1A Expired - Fee Related CN104107765B (en) | 2013-04-19 | 2013-04-19 | Water-saving shower |
| CN201610008576.1A Pending CN105587908A (en) | 2013-04-19 | 2013-04-19 | Water-saving shower head with adjusting valve |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310137378.1A Expired - Fee Related CN104107765B (en) | 2013-04-19 | 2013-04-19 | Water-saving shower |
| CN201610008576.1A Pending CN105587908A (en) | 2013-04-19 | 2013-04-19 | Water-saving shower head with adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN105597950A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322254B (en) * | 2012-12-16 | 2015-08-26 | 长乐市丽智产品设计有限公司 | Constant flow shower |
| CN107930874A (en) * | 2017-12-06 | 2018-04-20 | 潘淑斐 | Water-saving shower nozzle |
| CN110843099B (en) * | 2019-12-07 | 2021-10-29 | 景德镇一牧堂陶瓷科技有限公司 | Glazing device for ceramic manufacturing process |
| CN111135966A (en) * | 2020-01-16 | 2020-05-12 | 福建欣宇卫浴科技股份有限公司 | Gondola water faucet stagnant water structure, gondola water faucet spare and gondola water faucet suit |
| CN111135965B (en) * | 2020-01-17 | 2024-07-02 | 福建欣宇卫浴科技股份有限公司 | Shower water stopping structure, shower part and shower suit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298290Y (en) * | 1994-10-25 | 1998-11-25 | 陈鑫生 | Multipurpose water saver |
| CN201636407U (en) * | 2010-04-17 | 2010-11-17 | 薛斌 | Water-saving valve internally arranged in shower head |
| CN202972078U (en) * | 2012-12-16 | 2013-06-05 | 中山市雅西环保科技有限公司 | Constant current shower |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100799457B1 (en) * | 2007-03-09 | 2008-02-01 | 김영조 | Wall shower of having water saving device is inner install |
| CN203264902U (en) * | 2013-04-19 | 2013-11-06 | 丽水市红点创意产品设计有限责任公司 | Water-saving sprinkler |
-
2013
- 2013-04-19 CN CN201610008563.4A patent/CN105597950A/en active Pending
- 2013-04-19 CN CN201310137378.1A patent/CN104107765B/en not_active Expired - Fee Related
- 2013-04-19 CN CN201610008576.1A patent/CN105587908A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298290Y (en) * | 1994-10-25 | 1998-11-25 | 陈鑫生 | Multipurpose water saver |
| CN201636407U (en) * | 2010-04-17 | 2010-11-17 | 薛斌 | Water-saving valve internally arranged in shower head |
| CN202972078U (en) * | 2012-12-16 | 2013-06-05 | 中山市雅西环保科技有限公司 | Constant current shower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104107765A (en) | 2014-10-22 |
| CN105587908A (en) | 2016-05-18 |
| CN104107765B (en) | 2016-03-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160525 |
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| WD01 | Invention patent application deemed withdrawn after publication |