CN110285222A - A kind of durable butterfly valve - Google Patents
A kind of durable butterfly valve Download PDFInfo
- Publication number
- CN110285222A CN110285222A CN201910555941.4A CN201910555941A CN110285222A CN 110285222 A CN110285222 A CN 110285222A CN 201910555941 A CN201910555941 A CN 201910555941A CN 110285222 A CN110285222 A CN 110285222A
- Authority
- CN
- China
- Prior art keywords
- valve
- disk
- valve casing
- rod
- piston
- 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.)
- Granted
Links
- 210000005239 tubule Anatomy 0.000 claims abstract description 18
- 239000002390 adhesive tape Substances 0.000 claims abstract description 13
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 11
- 235000005121 Sorbus torminalis Nutrition 0.000 claims description 3
- 244000152100 Sorbus torminalis Species 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of durable butterfly valves, including valve casing, the valve casing is internally provided with cylindrical channel, upper channel is offered on the valve casing, valve rod is rotatably connected in the upper channel, the side that the valve rod is located in valve casing is fixedly connected with disk, and the equal gluing in outer ring of the disk two sides has an adhesive tape, and each adhesive tape is close to the two sides of disk.In valve of the invention, the part-structures such as tubule and push rod are provided on disk, when butterfly valve is in the open state, piston in box body moves under the action of the spring, so that box body absorbs fluid and is stored from valve casing, when in valve closing process, the inner wall of push rod and valve casing, which offsets, drives piston motion, fluid in box body is squeezed out from tubule, flushing effect is generated to the junction of disk and valve casing, junction remaining is avoided to have spot, to avoid spot from squeezing generation damage on valve casing and disk, so that valve has preferable durability.
Description
Technical field
The present invention relates to valve technology field more particularly to a kind of durable butterfly valves.
Background technique
Valve is the most common mechanism in pipeline transportation, primarily serves the effect that control fluids within pipes circulation and disconnected,
Wherein butterfly valve is called flap valve, is a kind of simple regulating valve of structure, can be used for the butterfly valve of the switch control of low pressure pipeline medium
Refer to that closure member (flap or butterfly plate) is disk, a kind of valve of open and close is reached around valve shaft rotation.
It needs that butterfly plate is often driven to rotate in the use process of butterfly valve, if needing butterfly plate fine to playing with the inner cavity of valve body
Sealing effect, the inner wall for generally requiring butterfly plate and valve body tightly abuts against, in actual use, often will appear in valve body
Certain spot, if spot rests on the contact position of butterfly plate and valve body, butterfly plate is turned to when closely offseting with valve interior wall, pole
Easily occur for spot being extruded at the gap between butterfly plate and valve body, due to the presence of spot, so that butterfly plate can not be protected with valve body
The phenomenon that holding good airtightness and showing valve " close not tight ", in actual life often firmly turn valve, and this
When spot the more apparent scar under the inner wall stream of butterfly plate or valve body is then being easy under by extruding more energetically, for a long time,
Butterfly plate will thoroughly cannot achieve closed effect, so that the service life of butterfly valve is lower.
Summary of the invention
The purpose of the present invention is to solve the lower problems of the service life of butterfly valve in the prior art, and the one kind proposed
Durable butterfly valve.
To achieve the goals above, present invention employs following technical solutions:
A kind of durable butterfly valve, including valve casing, the valve casing are internally provided with cylindrical channel, offer on the valve casing
Upper channel is rotatably connected to valve rod in the upper channel, and the side that the valve rod is located in valve casing is fixedly connected with disk, described
The equal gluing in the outer ring of disk two sides has an adhesive tape, and each adhesive tape is close to the two sides of disk, the inside of the disk
A column chamber is offered, the side wall of the column chamber is communicated with multiple tubules, the tubule one end and valve far from column chamber
The one end of shell to connection, the tubule and far from column chamber is located between two adhesive tape, and the two sides of the column chamber are communicated with
One extra heavy pipe, each extra heavy pipe are communicated with a box body, and sealing slidably connects a piston, the work in the box body
It fills in one end far from extra heavy pipe and is welded with a push rod, the push rod runs through the side wall of disk and is slidably connected with disk, often
A piston is fixedly connected to a spring far from one end of push rod, and the spring is far from one end and box body of piston
Wall offsets；
Protecting cover is fixedly connected with outside the valve casing, the valve rod runs through protecting cover, and the valve rod and protecting cover are rotatablely connected, described
Valve rod is fixedly connected with a knob far from one end of disk, is provided with anti-skid chequer on the knob.
Preferably, the inner wall of the valve rod and upper channel is connected with multiple sealing rings jointly, and the sealing ring selects combination
Washer.
Preferably, the one end of the push rod far from piston is hemispherical structure.
Compared with prior art, the present invention has following advantages:
The part-structures such as tubule and push rod are provided in valve of the invention, on disk, when butterfly valve is in the open state,
Piston in box body moves under the action of the spring, so that box body absorbs fluid and stored from valve casing, when valve closing process
In, the inner wall of push rod and valve casing, which offsets, drives piston motion, the fluid in box body is squeezed out from tubule, to disk and valve casing
Junction generates flushing effect, and junction remaining is avoided to have spot, so that spot be avoided to squeeze generation damage on valve casing and disk
Wound, so that valve has preferable durability.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of durable butterfly valve proposed by the present invention；
Fig. 2 is the structural schematic diagram of disk part in a kind of durable butterfly valve proposed by the present invention；
Fig. 3 is the side view of disk part in a kind of durable butterfly valve proposed by the present invention；
Fig. 4 is the enlarged diagram of part A structure in Fig. 2.
In figure: 1 valve casing, 2 upper channels, 3 valve rods, 4 protecting covers, 5 sealing rings, 6 disks, 7 adhesive tape, 8 column chambers, 9 tubules, 10 boxes
Body, 11 pistons, 12 push rods, 13 springs, 14 extra heavy pipes, 15 knobs.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Referring to Fig.1~4, a kind of durable butterfly valve, including valve casing 1, the valve casing 1 are internally provided with cylindrical channel, institute
It states and offers upper channel 2 on valve casing 1, valve rod 3 is rotatably connected in the upper channel 2, the valve rod 3 is located at one in valve casing 1
Side is fixedly connected with disk 6, and the equal gluing in outer ring of 6 two sides of disk has an adhesive tape 7, and each adhesive tape 7 is close to dish
The two sides of piece 6, the inside of the disk 6 offer a column chamber 8, and the side wall of the column chamber 8 is communicated with multiple tubules
9, with valve casing 1 to being connected to, the tubule 9 is located at two with one end far from column chamber 8 for the one end of the tubule 9 far from column chamber 8
Between a adhesive tape 7, the two sides of the column chamber 8 are communicated with an extra heavy pipe 14, and each extra heavy pipe 14 is communicated with a box
Body 10, the interior sealing of the box body 10 slidably connect a piston 11, and the piston 11 is welded and fixed far from one end of extra heavy pipe 14
There is a push rod 12, the push rod 12 runs through the side wall of disk 6 and is slidably connected with disk 6, and each piston 11 is separate to be pushed away
One end of bar 12 is fixedly connected to a spring 13, the inner wall phase of the spring 13 one end far from piston 11 and box body 10
It supports.
The inner wall of the valve rod 3 and upper channel 2 is connected with multiple sealing rings 5 jointly, for avoiding occurring at upper channel 2
The case where leak；The sealing ring 5 selects bonded washer, and better waterproof performance realizes better obturation effect；The push rod
12 one end far from piston 11 are hemispherical structure, when push rod 12 and the inner wall of valve casing 1 offset, reduce friction damage between the two
Consumption.
Protecting cover 4 is fixedly connected with outside the valve casing 1, the valve rod 3 runs through protecting cover 4, and the valve rod 3 connects with the rotation of protecting cover 4
It connecing, protecting cover 4 can play the role of protecting 2 part-structure of upper channel, while valve rod 3 can also be made to remain its location status,
Valve rod 3 is avoided to have operation of the tendency influence disk 6 of swing in valve casing 1；The one end of the valve rod 3 far from disk 6 is fixed to be connected
It is connected to a knob 15, is provided with anti-skid chequer on the knob 15, the opening and closing of the present apparatus are operated convenient for user.
The present invention can illustrate its principle of work and power by following mode of operation:
In the present invention, user's rotation valve rod 3 can drive disk 6 to rotate, when disk 6 is vertical with the direction of valve casing 1, dish
Piece 6 and adhesive tape 7 jointly closely offset the inner wall of valve casing 1, realize the effect for closing valve, when rotation valve rod 3, disk 6
With its synchronous rotation, piston 11 is moved under the action of spring 13 to two sides at this time, so that push rod 12 is stretched from the two sides of disk 6
Out, suction function is generated in tubule 9 and box body 10 at this time from absorbing fluid in valve casing 1 and be stored in box body 10, in column chamber 8
Portion.
When needing to close valve, rotation valve rod 3 is until disk 6 is vertical with the inner wall of valve casing 1, during this, the beginning of push rod 12
It offsets eventually with the inner wall of valve casing 1, band piston 11 moves in box body 10, and the fluid in box body 10 is squeezed out from tubule 9, rushes
Disk 6 and 1 junction of valve casing are washed, product is avoided to have spot to scratch valve casing 1 or disk 6.So can high degree reduction disk 6
With the degree of injury of valve casing 1, increase the service life of valve.
It is worth noting that: it should be provided with strainer with the junction of valve casing 1 on tubule 9 in the present apparatus, tubule 9 is avoided to enter
Spot generates blocking.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of durable butterfly valve, including valve casing (1), which is characterized in that the valve casing (1) is internally provided with cylindrical channel,
It offers upper channel (2), is rotatably connected to valve rod (3) in the upper channel (2), the valve rod (3) is located on the valve casing (1)
Side in valve casing (1) is fixedly connected with disk (6), and the equal gluing in outer ring of disk (6) two sides has an adhesive tape (7), often
A adhesive tape (7) is close to the two sides of disk (6), and the inside of the disk (6) offers a column chamber (8), described
The side wall of column chamber (8) is communicated with multiple tubules (9), the tubule (9) one end and valve casing (1) Xiang Lian far from column chamber (8)
Logical, the tubule (9) and one end far from column chamber (8) are located between two adhesive tape (7), and the two sides of the column chamber (8) are equal
It is communicated with an extra heavy pipe (14), each extra heavy pipe (14) is communicated with a box body (10), and sealing is slided in the box body (10)
Dynamic to be connected with a piston (11), the piston (11) is welded with a push rod (12), institute far from the one end of extra heavy pipe (14)
Push rod (12) are stated through the side wall of disk (6) and are slidably connected with disk (6), each piston (11) is far from push rod (12)
One end is fixedly connected to a spring (13), the spring (13) one end and the inner wall phase of box body (10) far from piston (11)
It supports；
It is fixedly connected with protecting cover (4) outside the valve casing (1), the valve rod (3) runs through protecting cover (4), the valve rod (3) and protecting cover
(4) it is rotatablely connected, the valve rod (3) is fixedly connected with a knob (15) far from the one end of disk (6), on the knob (15)
It is provided with anti-skid chequer.
2. a kind of durable butterfly valve according to claim 1, which is characterized in that the inner wall of the valve rod (3) and upper channel (2)
It is connected with jointly multiple sealing rings (5), the sealing ring (5) selects bonded washer.
3. a kind of durable butterfly valve according to claim 1, which is characterized in that the one of the push rod (12) separate piston (11)
End is hemispherical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555941.4A CN110285222B (en) | 2019-06-25 | 2019-06-25 | Durable butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555941.4A CN110285222B (en) | 2019-06-25 | 2019-06-25 | Durable butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110285222A true CN110285222A (en) | 2019-09-27 |
| CN110285222B CN110285222B (en) | 2020-11-10 |
Family
ID=68005760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910555941.4A Active CN110285222B (en) | 2019-06-25 | 2019-06-25 | Durable butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110285222B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915354A (en) * | 2021-11-10 | 2022-01-11 | 夏方飞 | Butterfly valve and use method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4353388A (en) * | 1979-07-12 | 1982-10-12 | Kubota, Ltd. | Butterfly valve |
| CN201065948Y (en) * | 2007-06-20 | 2008-05-28 | 湖北洪城通用机械股份有限公司 | Slag-discharging type metal hard sealing butterfly valve |
| CN201155574Y (en) * | 2007-12-03 | 2008-11-26 | 江苏神通阀门股份有限公司 | Coal gas butterfly valve |
| KR101057480B1 (en) * | 2011-04-18 | 2011-08-17 | 양일호 | Cartridge type shaft bearing structure for butterfly valve |
| CN103671970A (en) * | 2013-12-02 | 2014-03-26 | 东正科技有限公司 | Cleaning type anti-mixing butterfly valve with single butterfly plate |
| CN203717961U (en) * | 2013-12-25 | 2014-07-16 | 秦皇岛中青冶金阀门有限公司 | Novel water-cooled high-temperature regulation butterfly valve |
| CN105736717A (en) * | 2016-04-18 | 2016-07-06 | 浙江联大阀门有限公司 | All-steam tracing butterfly valve |
| CN207297908U (en) * | 2017-08-16 | 2018-05-01 | 江苏大唐国际吕四港发电有限责任公司 | A kind of new sea water resistance electric butterfly valve |
| CN207316090U (en) * | 2017-10-24 | 2018-05-04 | 扬州伯瑞格机械有限公司 | A kind of electric butterfly valve of convenient cleaning |
| CN207864642U (en) * | 2018-01-18 | 2018-09-14 | 超一阀门有限公司 | A kind of butterfly valve with dedusting channel |
| CN208885999U (en) * | 2018-07-16 | 2019-05-21 | 天津市明川阀门有限公司 | A kind of electric butterfly valve easy to clean |
-
2019
- 2019-06-25 CN CN201910555941.4A patent/CN110285222B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4353388A (en) * | 1979-07-12 | 1982-10-12 | Kubota, Ltd. | Butterfly valve |
| CN201065948Y (en) * | 2007-06-20 | 2008-05-28 | 湖北洪城通用机械股份有限公司 | Slag-discharging type metal hard sealing butterfly valve |
| CN201155574Y (en) * | 2007-12-03 | 2008-11-26 | 江苏神通阀门股份有限公司 | Coal gas butterfly valve |
| KR101057480B1 (en) * | 2011-04-18 | 2011-08-17 | 양일호 | Cartridge type shaft bearing structure for butterfly valve |
| CN103671970A (en) * | 2013-12-02 | 2014-03-26 | 东正科技有限公司 | Cleaning type anti-mixing butterfly valve with single butterfly plate |
| CN203717961U (en) * | 2013-12-25 | 2014-07-16 | 秦皇岛中青冶金阀门有限公司 | Novel water-cooled high-temperature regulation butterfly valve |
| CN105736717A (en) * | 2016-04-18 | 2016-07-06 | 浙江联大阀门有限公司 | All-steam tracing butterfly valve |
| CN207297908U (en) * | 2017-08-16 | 2018-05-01 | 江苏大唐国际吕四港发电有限责任公司 | A kind of new sea water resistance electric butterfly valve |
| CN207316090U (en) * | 2017-10-24 | 2018-05-04 | 扬州伯瑞格机械有限公司 | A kind of electric butterfly valve of convenient cleaning |
| CN207864642U (en) * | 2018-01-18 | 2018-09-14 | 超一阀门有限公司 | A kind of butterfly valve with dedusting channel |
| CN208885999U (en) * | 2018-07-16 | 2019-05-21 | 天津市明川阀门有限公司 | A kind of electric butterfly valve easy to clean |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915354A (en) * | 2021-11-10 | 2022-01-11 | 夏方飞 | Butterfly valve and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110285222B (en) | 2020-11-10 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Jiajun Inventor after: Wu Wenzhong Inventor before: He Jiajun |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201014 Address after: 362000 hi tech Zone, Nanan, Fujian, Quanzhou (three issue) Applicant after: OUGUAN VALVE TECHNOLOGY Co.,Ltd. Address before: 322118 Shangxi 171, Nanshanghu Community, Hengdian Town, Dongyang City, Jinhua City, Zhejiang Province Applicant before: He Jiajun |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |