CN109499341A - A kind of air sterillization deodorizing device and method - Google Patents

A kind of air sterillization deodorizing device and method Download PDF

Info

Publication number
CN109499341A
CN109499341A CN201910009581.8A CN201910009581A CN109499341A CN 109499341 A CN109499341 A CN 109499341A CN 201910009581 A CN201910009581 A CN 201910009581A CN 109499341 A CN109499341 A CN 109499341A
Authority
CN
China
Prior art keywords
thimerosal
air
nozzle
shell
deodorizing device
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.)
Pending
Application number
CN201910009581.8A
Other languages
Chinese (zh)
Inventor
何健
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.)
Foshan Jingwei Environmental Protection Engineering Co Ltd
Original Assignee
Foshan Jingwei Environmental Protection Engineering 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 Foshan Jingwei Environmental Protection Engineering Co Ltd filed Critical Foshan Jingwei Environmental Protection Engineering Co Ltd
Priority to CN201910009581.8A priority Critical patent/CN109499341A/en
Publication of CN109499341A publication Critical patent/CN109499341A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/10Oxidants
    • B01D2251/108Halogens or halogen compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/06Polluted air

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

The embodiment of the invention discloses a kind of air sterillization deodorizing device, including shell, the spaced partition of bottom plate and bottom plate top is equipped in shell;Bottom plate is equipped with thimerosal storage bin and air compressor;Partition is equipped with thimerosal liquid pump, is additionally provided with controller above partition;Shell exterior is equipped with nozzle, wherein air compressor connects nozzle by gas piping, and thimerosal liquid pump is separately connected thimerosal storage bin and nozzle by liquid line;Air compressor and thimerosal liquid pump is electrically connected in controller, to spray after passing through the disinfectant liquid atomization that thimerosal liquid pump is transported in nozzle by the compressed gas generated in air compressor.The equipment of the embodiment of the present invention is to solve the problems, such as that existing thimerosal especially chlorine dioxide disinfection liquid is difficult to use in air environment disinfecting, deodorizing.The embodiment of the invention also provides the above-mentioned air sterillization deodorizing devices of application to carry out disinfection the method for deodorization to air.

Description

A kind of air sterillization deodorizing device and method
Technical field
The present invention relates to environmental protection technical fields, and in particular to a kind of air sterillization deodorizing device and method.
Background technique
Country produces volatile organic matter, the different smell gas of plant area and ambient enviroment and public place to all trades and professions at present The discharges of the pernicious gases such as body carries out real-time monitoring, carries forward vigorously the comprehensive treatment of volatile organic matter (VOCs), reduce VOCs, The total emission volumn requirement of different smell gas, the place such as garbage transfer station, slaughterhouse etc. that especially environment is produced bigger effect It is required that more stringent.
Chlorine dioxide (ClO2) it is to be known as safe and nontoxic green disinfectant in the world, external a large amount of experimental study It has been shown that, chlorine dioxide also do not occur without " three cause " effect (carcinogenic, teratogenesis, mutagenesis) in disinfecting process with organic matter Chlorination generates the organic chloride that can produce " three cause " effect or other toxic substances, thus due to be used as oxidant, Whens deodorant, biocide etc., has the characteristics that be safe from harm to human body and animal and do not cause secondary pollution to environment and standby By the favor of people.
Chlorine Dioxide Molecules are made of 1 chlorine atom and 2 oxygen atoms, combine 19 electronics altogether, and outer layer key is deposited on domain In not pairs of active free electron, there is very strong oxidation, and be based primarily upon titanium dioxide with chlorine dioxide deodorization The strong oxidizing property of chlorine.
(1) chlorine dioxide and sulfide react
Chlorine dioxide is in the section of pH value 5~9, quickly by hydrogen sulfide (H2S) it is oxidized to sulfate (SO4 2-);
Similarly, chlorine dioxide is in the section of pH value 5~9, quickly by sulfur dioxide (SO2) it is oxidized to sulfate (SO4 2), it is also similar for the reaction of methyl sulfide.
(2) chlorine dioxide and ammonia react
Chlorine dioxide can be indicated with reacting for ammonia with following formula:
6ClO2+NH3+OH-→6ClO2 -+N2+H2O。
(3) chlorine dioxide and methyl mercaptan react
Due to the strong oxidizing property of chlorine dioxide, not only moment can eliminate the stink of methyl mercaptan, but also can be by methyl mercaptan oxygen It is melted into disulphide even sulfonic acid or sulfonate, is reacted as follows:
2CH3SH+ClO2→CH3-S-S-CH3+2ClO2 -+2H+
2CH3SH+ClO2+2OH-→CH3SO3H+Cl-+H2O。
In addition, chlorine dioxide and propylene mercaptan, beneze methane thiol, ethyl mercaptan, to the oxidation reaction mechanism of benzyl mercaptan with The reaction of methyl mercaptan is similar.Similarly, the disulfide group in carbon disulfide can be oxidized to sulfonate ion by chlorine dioxide.
However, existing chlorine dioxide disinfection liquid is mainly used for water body disinfection, body surface sterilization etc., air is had not been used in The precedent that environment disinfected deodorization belongs to, therefore the requirement and specification of the air sterillization deodorization for current production environment and public place It is difficult to carry out.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of air sterillization deodorizing device, to solve existing thimerosal especially It is the problem of chlorine dioxide disinfection liquid is difficult to use in air environment disinfecting, deodorizing.The embodiment of the invention also provides apply above-mentioned sky Gas disinfecting, deodorizing equipment carries out disinfection the method for deodorization to air.
To achieve the above object, the embodiment of the present invention provides a kind of air sterillization deodorizing device, the air sterillization deodorization Equipment includes shell, and the spaced partition of bottom plate and bottom plate top is equipped in the shell;The bottom plate is equipped with thimerosal Storage bin and air compressor;The partition is equipped with thimerosal liquid pump, is additionally provided with controller above the partition;The shell Outside is equipped with nozzle, wherein
The air compressor connects the nozzle by gas piping, and the thimerosal liquid pump is distinguished by liquid line Connect the thimerosal storage bin and nozzle;The air compressor and thimerosal liquid pump is electrically connected in the controller, To be sprayed after passing through the disinfectant liquid atomization that thimerosal liquid pump is transported in nozzle by the compressed gas generated in air compressor.
Thimerosal especially chlorine dioxide disinfection liquid is realized the embodiment of the invention provides air sterillization deodorizing device to use In the purpose of air environment disinfecting, deodorizing, easy to use, significant effect, manufacture easy to produce.By the way that each components/devices are put In the shell, so as to avoid high pressure pump spraying bring equipment etching problem;By by air pressure pump and thimerosal liquid pump Layering setting, is avoided and is influenced each other between the two due to issuable resonance, being thus easy to produce failure and shortening makes The problem of with the service life.
Further, the thimerosal storage bin is additionally provided with liquidometer, with the usage amount for monitoring thimerosal.Work as disinfection When liquid deficiency, it can be prompted by the alarm equipment alarm being additionally arranged.
Further, at least two feed liquor snorkels are additionally provided at the top of the thimerosal storage bin, and the feed liquor is ventilated Pipe leads to the shell exterior.Described two feed liquor snorkels are used to supplement thimerosal and import/exhaust into thimerosal storage bin. When new equipment comes into operation or in thimerosal storage bin when thimerosal deficiency, is supplemented and sterilized by least one feed liquor snorkel Liquid, at least another feed liquor snorkel is used for the air being discharged in storage bin, to keep storage bin internal and external pressure balance;Work as disinfection When liquid liquid pump is started to work, since part thimerosal is sucked in liquid pump by liquid line, it is therefore desirable to pass through feed liquor snorkel Air is sucked, to keep storage bin internal and external pressure balance.
Certainly, multiple for example, at least three feed liquor snorkels can also be set at the top of the thimerosal storage bin, with for example Different thimerosal ingredients is input to inside storage bin by least two different feed liquor snorkels and is mixed.This In the case of, it is preferable that it is additionally provided with mixing plant in the thimerosal storage bin, to disperse for mixing heterogeneity, to obtain The thimerosal that must be can be used.
For example, a certain amount of Solid Chlorine Dioxide Disinfection Powder is added in thimerosal liquid case storage bin, add a certain proportion of Suitable water is added after sufficiently activating in style active agent of dioxide chlorine, disinfectant powder and activator, prepares the two of a certain concentration ratio Chlorine monoxid thimerosal.Chlorine dioxide disinfection liquid concentration can be prepared according to actual needs.
Further, the quantity of the nozzle is two or more.According to the difference of environment, the quantity of nozzle can be increased, And the liquid pump of corresponding circulation is thus matched, to increase the atomization quantity of thimerosal.Thus, it is possible to facilitate the air sterillization Deodorizing device is in the environment of different environment occasion and different disinfecting, deodorizing workloads.
Further, the controller on the shell power interface be electrically connected, with for the controller, Thimerosal liquid pump and air compressor power supply.
Further, the nozzle is arranged in outside a side of the shell, the controller and power interface setting At the shell side opposite with side locating for the nozzle;Shell side locating for the controller and power interface is described The part on partition top is provided with multiple heat dissipation ventilation holes, and multiple through-holes are arranged on the partition.
Nozzle is arranged in outside a side of the shell and thimerosal aerosol is convenient for surpass a direction injection.And it will control Nozzle opposite side, which is arranged in, in device and power interface can minimize the spraying damage to electrical component of thimerosal.In addition, control Heat dissipation ventilation hole is set at the shell of device and power interface processed, and one is easy for the heat dissipation of the original parts such as controller, second is that can be outside Airflow channel is formed inside shell, outside air is made to enter interior of shell via the heat dissipation ventilation hole of controller part, is passed through downwards Bulkhead through-hole enters air compressor, to make to form good heat dissipation circulation inside equipment.
The embodiment of the invention also provides a kind of air sterillization deodorizing methodss, and the method includes by using any of the above-described Air sterillization deodorizing device sprays the step of thimerosal aerosol into air.
Further, the thimerosal includes chlorine dioxide disinfection liquid;The material of the nozzle is PTFE or PVC.
The method for example may include following process: connection power supply starts controller, and thimerosal liquid pump is by chlorine dioxide Thimerosal is transported to nozzle, while air compressor delivers air to nozzle, and due to the strong oxidizing property of chlorine dioxide, nozzle is PTFE (perhaps PVC) material makes or by other materials being resistant to using thimerosal, passes through the gas-liquid separation of nozzle Chlorine dioxide disinfection liquid is atomized into the deodorization drop of nano sized particles, and chemistry occurs instead with the malodor molecules in air by function It answers, to achieve the purpose that disinfecting, deodorizing.
The embodiment of the present invention has the advantages that
1, by this equipment, it can be realized thimerosal especially chlorine dioxide disinfection liquid for air environment disinfecting, deodorizing Purpose, easy to use, significant effect;
2, by putting each components/devices in the shell, so as to avoid high pressure pump spraying bring equipment etching problem;
3, by avoiding between the two air pressure pump and the layering setting of thimerosal liquid pump due to issuable humorous It shakes and influences each other;
4, manufacture easy to produce is conveniently replaceable thimerosal, applied widely, is thus convenient for large-scale promotion.
Detailed description of the invention
Fig. 1 is air sterillization deodorizing device structural schematic diagram provided in an embodiment of the present invention.
Wherein appended drawing reference are as follows:
1, shell;2, partition;3, bottom plate;4, thimerosal storage bin;5, feed liquor snorkel;6, liquidometer;7, air compresses Machine;8, thimerosal liquid pump;9, nozzle;10, controller;11, power interface.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention Under the effect of can be generated and the purpose that can reach, it should all still fall in disclosed technology contents and obtain the model that can cover In enclosing.Meanwhile in this specification cited such as "upper", "lower", "left", "right", " centre " term, be merely convenient to chat That states is illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing skill without essence It is held in art, when being also considered as the enforceable scope of the present invention.
Embodiment 1
As shown in Figure 1, it is shown that the air sterillization deodorizing device structural schematic diagram provided in one embodiment of the invention. The air sterillization deodorizing device includes shell 1, is equipped with the spaced partition 2 of bottom plate 3 and top in shell 1;It is set on bottom plate 3 There are thimerosal storage bin 4 and air compressor 7;Partition 2 is equipped with thimerosal liquid pump 8, is additionally provided with controller 10 above partition 2; Controller 10 is electrically connected with the power interface 11 on shell 1, for compressing to controller 10, thimerosal liquid pump 8 and air Machine 7 is powered.Thimerosal storage bin 4 is additionally provided with liquidometer 6.Top is additionally provided with two feed liquor snorkels 5, and feed liquor snorkel 5 is logical To outside shell 1.
Nozzle 9 is equipped with outside shell 1, wherein air compressor 7 connects nozzle 9, thimerosal liquid pump 8 by gas piping Thimerosal storage bin 4 and nozzle 9 are separately connected by liquid line;Controller 10 is electrically connected air compressor 7 and disappears Venom liquid pump 8, the disinfection being transported to thimerosal liquid pump 8 to the compressed gas by generating in air compressor 7 in nozzle 9 It is sprayed after liquid mist.Nozzle 9 is arranged in outside a side of shell 1, controller 10 and power interface 11 setting with the side At opposite shell side;And this one side is provided with multiple heat dissipation ventilation holes (not shown), partition in the part on 2 top of partition Multiple through-hole (not shown) are set on 2, to form heat dissipation channel inside equipment.
Embodiment 2
On the basis of embodiment 1, the quantity of nozzle 9 is 10 to the present embodiment, and thus matches the liquid of corresponding circulation Pump, to increase the atomization quantity of thimerosal, it is bigger to enable adaptation to the disinfecting, deodorizing workload such as garbage transfer station, slaughterhouse Environment in.
Chlorine dioxide disinfection liquid is mainly used for water body disinfection, body surface sterilization, but is used for the less example of air deodorization.This Inventive embodiments technical solution realizes such as chlorine dioxide disinfection liquid and is used for the purpose of air sterillization deodorization, and solves use High pressure pump spraying bring equipment etching problem.Application place: garbage transfer station, public lavatory, sewage treatment plant, plant gas Deng.The deodorizations medicaments such as atomization vegetation water also can be used in this equipment, and can be convenient for changing medicament according to demand.
Present invention method is compared to more energy efficient environmental protection of existing deodorization technology such as ozone, UV light deodorizations.(ozone, UV are removed Smelly system power consumption is big, and to environment meeting secondary pollution, disinfection agent of chlorine dioxide is cheap for excess release), and compare active carbon deodorizing More efficient (activated carbon adsorption can be saturated).
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore, These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.

Claims (9)

1. a kind of air sterillization deodorizing device, which is characterized in that the air sterillization deodorizing device includes shell, in the shell Equipped with the spaced partition of bottom plate and bottom plate top;The bottom plate is equipped with thimerosal storage bin and air compressor;It is described Partition is equipped with thimerosal liquid pump, is additionally provided with controller above the partition;The shell exterior is equipped with nozzle, wherein
The air compressor connects the nozzle by gas piping, and the thimerosal liquid pump is separately connected by liquid line The thimerosal storage bin and nozzle;The air compressor and thimerosal liquid pump is electrically connected in the controller, to It is sprayed after the disinfectant liquid atomization that thimerosal liquid pump is transported in nozzle by the compressed gas generated in air compressor.
2. air sterillization deodorizing device according to claim 1, which is characterized in that the thimerosal storage bin is additionally provided with liquid Position meter.
3. air sterillization deodorizing device according to claim 2, which is characterized in that also set at the top of the thimerosal storage bin There are at least two feed liquor snorkels, and the feed liquor snorkel leads to the shell exterior.
4. air sterillization deodorizing device according to claim 3, which is characterized in that setting at the top of the thimerosal storage bin Different thimerosal ingredients is input to by at least three feed liquor snorkels by least two different feed liquor snorkels It is mixed inside storage bin.
5. air sterillization deodorizing device according to claim 1, which is characterized in that the quantity of the nozzle be two or with On.
6. air sterillization deodorizing device according to claim 1, which is characterized in that the controller is the same as on the shell Power interface is electrically connected, for powering to the controller, thimerosal liquid pump and air compressor.
7. air sterillization deodorizing device according to claim 6, which is characterized in that the shell is arranged in the nozzle Outside one side, the controller and power interface are arranged at the shell side opposite with side locating for the nozzle;It is described Shell side locating for controller and power interface is provided with multiple heat dissipation ventilation holes in the part on the partition top, and described Multiple through-holes are set on partition.
8. a kind of air sterillization deodorizing methods, which is characterized in that the method includes appointing by using according to claim 1-7 Air sterillization deodorizing device described in one sprays the step of thimerosal aerosol into air.
9. according to the method described in claim 8, it is characterized in that, the thimerosal includes chlorine dioxide disinfection liquid;The spray The material of mouth is PTFE or PVC.
CN201910009581.8A 2019-01-04 2019-01-04 A kind of air sterillization deodorizing device and method Pending CN109499341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910009581.8A CN109499341A (en) 2019-01-04 2019-01-04 A kind of air sterillization deodorizing device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910009581.8A CN109499341A (en) 2019-01-04 2019-01-04 A kind of air sterillization deodorizing device and method

Publications (1)

Publication Number Publication Date
CN109499341A true CN109499341A (en) 2019-03-22

Family

ID=65756480

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910009581.8A Pending CN109499341A (en) 2019-01-04 2019-01-04 A kind of air sterillization deodorizing device and method

Country Status (1)

Country Link
CN (1) CN109499341A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111457495A (en) * 2020-04-08 2020-07-28 宁波奥克斯电气股份有限公司 Indoor disinfection system, indoor disinfection method and air conditioner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103157366A (en) * 2013-03-13 2013-06-19 广西大学 Device and operation method for removing malodorous gas such as methyl mercaptan by chlorine dioxide
KR101553298B1 (en) * 2015-05-07 2015-09-15 김원중 Integrated Odor Removal System
CN108654345A (en) * 2018-03-16 2018-10-16 安徽科浦环保科技有限公司 The sterilizing equipment decontaminating apparatus and remove carbaldehyde Method that indoor formaldehyde is removed
CN208097780U (en) * 2017-12-20 2018-11-16 中山爱居环保科技有限公司 A kind of atomising device sterilized except aldehyde
CN209438363U (en) * 2019-01-04 2019-09-27 广东净威环保科技有限公司 A kind of air sterillization deodorizing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103157366A (en) * 2013-03-13 2013-06-19 广西大学 Device and operation method for removing malodorous gas such as methyl mercaptan by chlorine dioxide
KR101553298B1 (en) * 2015-05-07 2015-09-15 김원중 Integrated Odor Removal System
CN208097780U (en) * 2017-12-20 2018-11-16 中山爱居环保科技有限公司 A kind of atomising device sterilized except aldehyde
CN108654345A (en) * 2018-03-16 2018-10-16 安徽科浦环保科技有限公司 The sterilizing equipment decontaminating apparatus and remove carbaldehyde Method that indoor formaldehyde is removed
CN209438363U (en) * 2019-01-04 2019-09-27 广东净威环保科技有限公司 A kind of air sterillization deodorizing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111457495A (en) * 2020-04-08 2020-07-28 宁波奥克斯电气股份有限公司 Indoor disinfection system, indoor disinfection method and air conditioner

Similar Documents

Publication Publication Date Title
CN104174052B (en) Deodorant for treating sludge stink and deodoration method by using SRR deodorant
KR101916455B1 (en) Deodorizing apparatus for spraying oxidant complex mist and Deodorizing method thereof
CN206198982U (en) The innoxious Odor control integrated system of livestock and poultry
CN202078845U (en) Exhaust gas purification device and automatic exhaust gas purification system
CN206535406U (en) A kind of waste gas purification all-in-one
CN104190234A (en) Deodorant for waste transfer station and preparation method of deodorant
CN209438363U (en) A kind of air sterillization deodorizing device
CN107970760A (en) A kind of papermaking wastewater station waste gas treatment process
CN109499341A (en) A kind of air sterillization deodorizing device and method
CN112546849A (en) Livestock and poultry breeding house odor treatment process
CN208893969U (en) A kind of combined type deodorization system
CN215799937U (en) Intelligent control disinfection atomizing and oxygenation multipurpose machine
CN108392982B (en) Deodorant and preparation method and using method thereof
CN101703882B (en) Method for treating smelly gas generated by waste water of pharmaceutical industry
JP2001252521A (en) Air cleaner
CN217391222U (en) Compound intelligent disinfection and purification machine
CN216722564U (en) House deodorizing and purifying system
CN109970032A (en) A kind of method and device generating ozone
KR102329190B1 (en) A skin care apparatus and method using plasma discharge
CN101612413A (en) Superfine atomization and deodorization system
CN201537460U (en) TiO2 photolysis purifying treatment device
KR20110101700A (en) A deodorization apparatus for garbage extinction device
CN204768257U (en) Combination deodorization system
CN218924269U (en) Kitchen garbage odor treatment system
CN214715635U (en) Waste gas deodorization system

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190322