CN109398947A - A kind of pre-packaged anti-flatulence preservation device of food - Google Patents

A kind of pre-packaged anti-flatulence preservation device of food Download PDF

Info

Publication number
CN109398947A
CN109398947A CN201811135140.4A CN201811135140A CN109398947A CN 109398947 A CN109398947 A CN 109398947A CN 201811135140 A CN201811135140 A CN 201811135140A CN 109398947 A CN109398947 A CN 109398947A
Authority
CN
China
Prior art keywords
threaded rod
food
threaded
far
slot
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
CN201811135140.4A
Other languages
Chinese (zh)
Inventor
董银剑
范欣
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.)
Liuzhou Qingxu Trade Co Ltd
Original Assignee
Liuzhou Qingxu Trade 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 Liuzhou Qingxu Trade Co Ltd filed Critical Liuzhou Qingxu Trade Co Ltd
Priority to CN201811135140.4A priority Critical patent/CN109398947A/en
Publication of CN109398947A publication Critical patent/CN109398947A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/20External fittings
    • B65D25/24External fittings for spacing bases of containers from supporting surfaces, e.g. legs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Abstract

The invention patent discloses a kind of pre-packaged anti-flatulence preservation device of food, including cabinet, the cabinet is the hollow structure of a side opening, upper end between two corresponding wall box positioned at bottom inner cavity is symmetrically fixedly connected with driving motor and bearing block, the output end of the driving motor is connected with threaded rod by shaft coupling, the threaded rod extends in bearing block far from one end of driving motor, and the fixed rotation connection of the inner ring of the threaded rod and bearing block, movable block is symmetrically threaded on the threaded rod, threaded hole is offered in two movable blocks, it is threaded with threaded rod jointly in two threaded holes, contrary screw thread is symmetrically arranged on the bar wall of the threaded rod, the upper end of two movable blocks is fixedly connected to clamping plate, two clamping plates are oppositely arranged, the invention patent is realized Different sizes and different types of food are processed, food of different shapes is processed in realization.

Description

A kind of pre-packaged anti-flatulence preservation device of food
Technical field
The invention patent relates to the pre-packaged anti-flatulence preservation devices of food preservative technology field more particularly to a kind of food.
Background technique
Prepackaged food refers to good through preparatory quantitative package or is fitted into container, the food directly provided to consumer.In advance The food that packaged food refers to preparatory quantitative package or is produced in packaging material and container, including preparatory quantitative package and pre- The food for being first quantitatively produced in packaging material and container and being identified in a certain amount of limit range with unified quality or volume Product.Prepackaged food is not the type of food, only to be distinguished with non-packed food.It is pre-packaged be " quantitative package " and " directly being provided to consumer ".Non-quantitation packaging, such as the transportation and packing of transportational process pollution or shop weigh pin in order to prevent Simple packaging fruit, vegetables, aquatic food, poultry, fowl, eggs, panned sweets, chocolate and instant fast-food lunch-box for selling etc. Deng.The existing pre-packaged anti-flatulence preservation device of food can not process different sizes and different types of food, Food of different shapes is not adapted to be processed.
Patent of invention content
The purpose of the invention patent is to solve in the prior art not carrying out different sizes and different types of food Processing, can not adapt to food of different shapes and be processed, and the pre-packaged anti-flatulence preservation device of a kind of food proposed.
To achieve the goals above, the invention patent adopts the technical scheme that
A kind of pre-packaged anti-flatulence preservation device of food, including cabinet, the cabinet are the hollow structure of a side opening, and two right Upper end between the wall box answered positioned at bottom inner cavity is symmetrically fixedly connected with driving motor and bearing block, the driving The output end of motor is connected with threaded rod by shaft coupling, and the threaded rod extends to bearing block far from one end of driving motor It is interior, and the fixed rotation connection of the inner ring of the threaded rod and bearing block, symmetrically it is threaded with movable block on the threaded rod, two Threaded hole is offered in a movable block, is threaded with threaded rod, the threaded rod in two threaded holes jointly Bar wall on be symmetrically arranged with contrary screw thread, the upper end of two movable blocks is fixedly connected to clamping plate, two institutes Clamping plate is stated to be oppositely arranged.
Preferably, the inner cavity top of the cabinet is fixedly connected with air pump, and the output end of the air pump is connected with gas point Flow tube, the drop-leg are connected with tracheae, tube wall of the tracheae far from drop-leg one end far from one end of air pump On valve is installed, the tracheae is fixedly connected with bellows far from drop-leg one end, two clamping plates it is opposite one Side offers air bag slot, and air bag is equipped in the air bag slot, and the bellows runs through the slot of air bag slot far from one end of tracheae Bottom simultaneously connects air bag setting.
Preferably, the positional symmetry of corresponding two movable blocks of the intracavity bottom of the cabinet offers limiting slot, two institutes State and slidably connect limited block in limiting slot, the limited block far from limiting slot slot bottom one end pass through limiting slot notch and to Outer extension, and be fixedly connected on corresponding movable block.
Preferably, the opening of the cabinet is hinged with cover board, and the cover board on the side wall of bottom far from being fixedly connected with Handle.
Preferably, the four corners of the bottom of box are mounted on universal wheel.
Preferably, the limited block offers ball grooves, the company of rolling in the ball grooves close to one end of limiting slot slot bottom Be connected to ball, the ball passes through the notch of ball grooves far from one end of ball grooves slot bottom and extends outwardly, and with limiting slot Slot bottom rolls connection.
Compared with prior art, the invention patent provides a kind of pre-packaged anti-flatulence preservation device of food, has following The utility model has the advantages that
1, the pre-packaged anti-flatulence preservation device of the food, by the way that driving motor, bearing block, threaded rod, movable block, screw thread is arranged Hole, threaded rod and clamping plate, driving motor work, threaded rod rotation, since threaded rod is threadedly coupled with movable block, movable block is in spiral shell It is moved on rasp bar, since movable block is connect with Boards wall, two movable blocks are mobile, and two clamping plates is driven to move to opposite direction It is dynamic, so that it may to change the distance of two clamping plates, and then realize and different sizes and different types of food are processed.
2, the pre-packaged anti-flatulence preservation device of the food, by the way that air pump, drop-leg, tracheae, valve, ripple is arranged Pipe, air bag slot and air bag, when clamping food, clamping plate movement, air pump works, and gas passes sequentially through drop-leg, tracheae and wave Line pipe, air bag inflation, so that air bag wraps up object, the use of grip objects, air bag can clamp irregular object, Food of different shapes is processed in realization.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, the invention patent Structure is simple, easy to operate, and different sizes and different types of food are processed in realization, and the use of air bag can clamp Food of different shapes is processed in irregular object, realization.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for the pre-packaged anti-flatulence preservation device of food that the invention patent proposes;
Fig. 2 is the enlarged drawing of part A in Fig. 1.
In figure: 1 cabinet, 2 driving motors, 3 bearing blocks, 4 threaded rods, 5 movable blocks, 6 threaded holes, 7 clamping plates, 8 air pumps, 9 gas Body isocon, 10 tracheaes, 11 valves, 12 bellowss, 13 air bag slots, 14 air bags, 15 limiting slots, 16 limited blocks, 17 cover boards, 18 Hand, 19 ball grooves, 20 balls.
Specific embodiment
Below in conjunction with the attached drawing in the invention patent embodiment, the technical solution in the invention patent embodiment is carried out Clearly and completely describing, it is clear that described embodiment is only the invention patent a part of the embodiment, rather than whole Embodiment.
In the description of the invention patent, it is to be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the invention patent and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the invention patent.
Referring to Fig.1-2, the pre-packaged anti-flatulence preservation device of a kind of food, including cabinet 1, cabinet 1 are in a side opening Hollow structure, the upper end that bottom inner cavity is located between two corresponding 1 side walls of cabinet are symmetrically fixedly connected with driving motor 2 and bearing Seat 3, the output end of driving motor 2 is connected with threaded rod 4 by shaft coupling, and threaded rod 4 is extended to far from one end of driving motor 2 In bearing block 3, and the inner ring of threaded rod 4 and bearing block 3 is fixed and is rotatablely connected, and is symmetrically threaded with movable block on threaded rod 4 5, threaded hole 6 is offered in two movable blocks 5, is threaded with threaded rod 4, the bar of threaded rod 4 in two threaded holes 6 jointly Contrary screw thread is symmetrically arranged on wall, the upper end of two movable blocks 5 is fixedly connected to clamping plate 7, and two clamping plates 7 are opposite Setting, may be implemented to process different sizes and different types of food.
The inner cavity top of cabinet 1 is fixedly connected with air pump 8, and the output end of air pump 8 is connected with drop-leg 9, gas point Flow tube 9 is connected with tracheae 10 far from one end of air pump 8, and tracheae 10 is equipped with valve on the tube wall far from 9 one end of drop-leg 11, tracheae 10 is fixedly connected with bellows 12 far from 9 one end of drop-leg, and two opposite sides of clamping plate 7 offer air bag Slot 13 is equipped with air bag 14, slot bottom and connection of the one end of bellows 12 far from tracheae 10 through air bag slot 13 in air bag slot 13 Air bag 14 is arranged, and the use of air bag 14 can clamp irregular object, and food of different shapes is processed in realization.
The positional symmetry of corresponding two movable blocks 5 of the intracavity bottom of cabinet 1 offers limiting slot 15, in two limiting slots 15 Slidably connect limited block 16, limited block 16 far from one end of 15 slot bottom of limiting slot passes through 15 notch of limiting slot and to extension It stretches, and is fixedly connected on corresponding movable block 5, avoid clamping plate 7 firmly excessive to food, impact.
The opening of cabinet 1 is hinged with cover board 17, and cover board 17 is far from handle 18 is fixedly connected on the side wall of bottom, conveniently The pick-and-place of food.
The four corners of 1 bottom of cabinet are mounted on universal wheel, convenient for the movement of the device.
Limited block 16 offers ball grooves 19 close to one end of 15 slot bottom of limiting slot, rolls in ball grooves 19 and is connected with ball 20, ball 20 passes through the notch of ball grooves 19 far from one end of 19 slot bottom of ball grooves and extends outwardly, and the slot with limiting slot 15 Bottom rolls connection, preferably slides in limiting slot 15 convenient for limited block 16.
In the invention patent, driving motor 2 works, and threaded rod 4 rotates, since threaded rod 4 is threadedly coupled with movable block 5, Movable block 5 moves on threaded rod 4, and since movable block 5 is fixedly connected with clamping plate 7, two movable blocks 5 are mobile, drives two folders Plate 7 is mobile to opposite direction, so that it may change the distance of two clamping plates 7, and then realize to different size and variety classes Food processed, when clamping food, clamping plate 7 is moved, and air pump 8 works, and gas passes sequentially through drop-leg 9, tracheae 10 With bellows 12, air bag 14 is inflated, so that air bag 14 wraps up object, the use of grip objects, air bag 14 can be clamped Food of different shapes is processed in irregular object, realization.
The preferable specific embodiment of the above, only the invention patent, but the scope of protection of the patent of the present invention is not It is confined to this, anyone skilled in the art is in the technical scope that the invention patent discloses, according to the present invention Technical solution and its patent of invention design of patent are subject to equivalent substitution or change, should all cover the protection model in the invention patent Within enclosing.

Claims (6)

1. a kind of pre-packaged anti-flatulence preservation device of food, including cabinet (1), which is characterized in that the cabinet (1) is opened for side Mouthful hollow structure, the upper end that bottom inner cavity is located between two corresponding cabinet (1) side walls is symmetrically fixedly connected with drive Dynamic motor (2) and bearing block (3), the output end of the driving motor (2) are connected with threaded rod (4), the spiral shell by shaft coupling Rasp bar (4) extends in bearing block (3) far from the one end of driving motor (2), and the threaded rod (4) and bearing block (3) is interior Circle is fixed to be rotatablely connected, and is symmetrically threaded with movable block (5) on the threaded rod (4), is opened in two movable blocks (5) Equipped with threaded hole (6), it is threaded with jointly threaded rod (4) in two threaded holes (6), the bar wall of the threaded rod (4) On be symmetrically arranged with contrary screw thread, the upper end of two movable blocks (5) is fixedly connected to clamping plate (7), two institutes Clamping plate (7) is stated to be oppositely arranged.
2. the pre-packaged anti-flatulence preservation device of a kind of food according to claim 1, which is characterized in that the cabinet (1) Inner cavity top be fixedly connected with air pump (8), the output end of the air pump (8) is connected with drop-leg (9), the gas point Flow tube (9) is connected with tracheae (10) far from the one end of air pump (8), pipe of the tracheae (10) far from drop-leg (9) one end It being equipped on wall valve (11), the tracheae (10) is fixedly connected with bellows (12) far from drop-leg (9) one end, and two The opposite side of the clamping plate (7) offers air bag slot (13), is equipped with air bag (14), the ripple in the air bag slot (13) Pipe (12) runs through the slot bottom of air bag slot (13) far from the one end of tracheae (10) and connects air bag (14) setting.
3. the pre-packaged anti-flatulence preservation device of a kind of food according to claim 1, which is characterized in that the cabinet (1) The positional symmetries of corresponding two movable blocks (5) of intracavity bottom offer limiting slot (15), in two limiting slots (15) It slidably connects limited block (16), the limited block (16) passes through limiting slot (15) notch far from one end of limiting slot (15) slot bottom And extend outwardly, and be fixedly connected on corresponding movable block (5).
4. the pre-packaged anti-flatulence preservation device of a kind of food according to claim 1, which is characterized in that the cabinet (1) Opening be hinged with cover board (17), the cover board (17) far from bottom side wall on be fixedly connected with handle (18).
5. the pre-packaged anti-flatulence preservation device of a kind of food according to claim 1, which is characterized in that the cabinet (1) The four corners of bottom are mounted on universal wheel.
6. the pre-packaged anti-flatulence preservation device of a kind of food according to claim 3, which is characterized in that the limited block (16) it is offered ball grooves (19) close to one end of limiting slot (15) slot bottom, is rolled in the ball grooves (19) and be connected with ball (20), the ball (20) passes through the notch of ball grooves (19) far from one end of ball grooves (19) slot bottom and extends outwardly, and with The slot bottom of limiting slot (15) rolls connection.
CN201811135140.4A 2018-09-28 2018-09-28 A kind of pre-packaged anti-flatulence preservation device of food Pending CN109398947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811135140.4A CN109398947A (en) 2018-09-28 2018-09-28 A kind of pre-packaged anti-flatulence preservation device of food

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811135140.4A CN109398947A (en) 2018-09-28 2018-09-28 A kind of pre-packaged anti-flatulence preservation device of food

Publications (1)

Publication Number Publication Date
CN109398947A true CN109398947A (en) 2019-03-01

Family

ID=65466437

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811135140.4A Pending CN109398947A (en) 2018-09-28 2018-09-28 A kind of pre-packaged anti-flatulence preservation device of food

Country Status (1)

Country Link
CN (1) CN109398947A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111671031A (en) * 2020-06-28 2020-09-18 广东亨盛维嘉食品工业有限公司 Nitrogen preservation device for food processing
CN112938148A (en) * 2021-01-26 2021-06-11 连云港海关综合技术中心 Enzyme-linked immunosorbent reagent device for detecting residual quantity of quinolone drugs in aquatic products
CN113148393A (en) * 2021-02-26 2021-07-23 邓文江 Prevent electrical apparatus thing flow box of static
CN113928696A (en) * 2021-10-27 2022-01-14 广州市流式生物科技有限公司 Insulation can that jolts is prevented in cold chain transportation
CN113998277A (en) * 2021-11-19 2022-02-01 河南中医药大学第三附属医院 Kit for detecting endocrine metabolic diseases
CN115056004A (en) * 2022-08-01 2022-09-16 江苏展志金属科技有限公司 Automatic fixed CNC frock tool

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600650A1 (en) * 1992-11-30 1994-06-08 Shippers Paper Products Co. Cargo airbag
JPH07179227A (en) * 1993-12-22 1995-07-18 Godai Shoji Kk Installing material between loaded cargo
CN205708086U (en) * 2016-05-11 2016-11-23 天津盛世嘉包装制品有限公司 A kind of industrial package products with damper
CN106578827A (en) * 2016-12-16 2017-04-26 彭泽县松源水产供销有限公司 Fresh-keeping system for food processing
CN206203076U (en) * 2016-11-30 2017-05-31 广州市辉乐医药科技有限公司 A kind of anti-flatulence preservation device of pre-packaged lactic acid bacteria fermented food
CN207208937U (en) * 2017-07-17 2018-04-10 诸暨搏远网络科技有限公司 A kind of electron plate transport protection case
CN108438471A (en) * 2018-05-18 2018-08-24 苏州莱锦机电自动化有限公司 A kind of robot special transport case
CN207773906U (en) * 2017-12-12 2018-08-28 王姗姗 A kind of medical instrument plastics holder

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600650A1 (en) * 1992-11-30 1994-06-08 Shippers Paper Products Co. Cargo airbag
JPH07179227A (en) * 1993-12-22 1995-07-18 Godai Shoji Kk Installing material between loaded cargo
CN205708086U (en) * 2016-05-11 2016-11-23 天津盛世嘉包装制品有限公司 A kind of industrial package products with damper
CN206203076U (en) * 2016-11-30 2017-05-31 广州市辉乐医药科技有限公司 A kind of anti-flatulence preservation device of pre-packaged lactic acid bacteria fermented food
CN106578827A (en) * 2016-12-16 2017-04-26 彭泽县松源水产供销有限公司 Fresh-keeping system for food processing
CN207208937U (en) * 2017-07-17 2018-04-10 诸暨搏远网络科技有限公司 A kind of electron plate transport protection case
CN207773906U (en) * 2017-12-12 2018-08-28 王姗姗 A kind of medical instrument plastics holder
CN108438471A (en) * 2018-05-18 2018-08-24 苏州莱锦机电自动化有限公司 A kind of robot special transport case

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111671031A (en) * 2020-06-28 2020-09-18 广东亨盛维嘉食品工业有限公司 Nitrogen preservation device for food processing
CN111671031B (en) * 2020-06-28 2023-04-14 广东亨盛维嘉食品工业有限公司 Nitrogen fresh-keeping device for food processing
CN112938148A (en) * 2021-01-26 2021-06-11 连云港海关综合技术中心 Enzyme-linked immunosorbent reagent device for detecting residual quantity of quinolone drugs in aquatic products
CN112938148B (en) * 2021-01-26 2022-03-04 连云港海关综合技术中心 Enzyme-linked immunosorbent reagent device for detecting residual quantity of quinolone drugs in aquatic products
CN113148393A (en) * 2021-02-26 2021-07-23 邓文江 Prevent electrical apparatus thing flow box of static
CN113928696A (en) * 2021-10-27 2022-01-14 广州市流式生物科技有限公司 Insulation can that jolts is prevented in cold chain transportation
CN113998277A (en) * 2021-11-19 2022-02-01 河南中医药大学第三附属医院 Kit for detecting endocrine metabolic diseases
CN115056004A (en) * 2022-08-01 2022-09-16 江苏展志金属科技有限公司 Automatic fixed CNC frock tool
CN115056004B (en) * 2022-08-01 2023-10-27 江苏展志金属科技有限公司 CNC tool fixture capable of being automatically fixed

Similar Documents

Publication Publication Date Title
CN109398947A (en) A kind of pre-packaged anti-flatulence preservation device of food
CN208716137U (en) One kind being packed for carton conveying device
CN207191536U (en) A kind of package mechanism for being used to produce nano-calcium carbonate
CN113200158A (en) Full-automatic vacuum packaging machine
CN112478254A (en) Bagging device capable of scanning and identifying fruit types
CN209533436U (en) A kind of pneumatic type industry mechanical arm
CN207417321U (en) Pollution-free food vacuum seal production line
CN209023244U (en) A kind of medical packaging bag opens a bag nozzle unit
CN207417226U (en) Packed bamboo shoot can vacuum sealer
CN212831155U (en) Tealeaves packing material loading edulcoration equipment
CN205470066U (en) A unpacking device for thin paper box
CN207482306U (en) A kind of bacterium spore sack filling machine
CN112389751A (en) Automatic continuous opening device of food package bag
CN111645936A (en) Food package bag open bagging apparatus
CN207033675U (en) A kind of inflatable air-breathing dual-purpose type holds air pump
CN221091476U (en) PE plastic bag automatic dispensing device
CN108516131A (en) A kind of efficiently sealing vacuum packing machine
CN221720465U (en) Tightening device for packaging bottle cap
CN216064371U (en) A removing devices for detecting packing gas tightness
CN219730496U (en) Multi-station vacuum cap screwing machine
CN114013726B (en) Bread shaping and packaging device
CN219427713U (en) Packaging printing processing equipment
CN216035353U (en) Safety device of sealing machine for food packaging
CN216510385U (en) Flexible container with theftproof function
CN213594563U (en) Automatic box packing and sealing machine for hexagonal paper boxes

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
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190301

WD01 Invention patent application deemed withdrawn after publication