CN207945378U - A kind of second conduit sealing structure - Google Patents
A kind of second conduit sealing structure Download PDFInfo
- Publication number
- CN207945378U CN207945378U CN201721608929.8U CN201721608929U CN207945378U CN 207945378 U CN207945378 U CN 207945378U CN 201721608929 U CN201721608929 U CN 201721608929U CN 207945378 U CN207945378 U CN 207945378U
- Authority
- CN
- China
- Prior art keywords
- conduit
- flange
- sealing structure
- sealing
- utility
- 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.)
- Active
Links
Abstract
The utility model provides a kind of second conduit sealing structure, belongs to conduit interconnection technique field.Second conduit sealing structure includes second flange and the second conduit, and the second conduit includes third end and the 4th end, and the second conduit is set in second flange and third end is located in second flange.This second conduit sealing structure will not keep sealing technique effect more preferable, avoid the generation of pipeline internal medium leakage and leakage accident to being caused stress at the sealing of pipeline.
Description
Technical field
The utility model is related to conduit interconnection technique fields, in particular to a kind of second conduit sealing structure.
Background technology
Long term distance conveys the anti-corrosion pipe of various media, and pipeline is connected by flanged joint technology, realizes and supplies
Draining, gas, a variety of different medium conveyings of oil, are widely used in production and construction and the living needs of multi-field conglomerate.
Anti-corrosion pipe flanged joint nozzle must carry the equivalent pressure of tube body, and this pressure is sealed by silicone gasket
(requiring be divided into low pressure, middle pressure, high pressure according to pipe laying flange technology), flanged joint nozzle pressure is close under external force
Encapsulation technique has limitation, can cause media leaks and leakage accident.
Utility model content
The purpose of this utility model is to provide a kind of second conduit sealing structures, will not be to causing to press at the sealing of pipeline
Power keeps sealing technique effect more preferable, avoids the generation of pipeline internal medium leakage and leakage accident.
The utility model is realized using following technical scheme:
A kind of second conduit sealing structure, including second flange and the second conduit, the second conduit include third end and the 4th
End, the second conduit is set in second flange and third end is located in second flange.
Further, in the utility model preferred embodiment, above-mentioned second conduit is steel pipe, and the second conduit is welded in
In second flange and third end is located in second flange.
Further, in the utility model preferred embodiment, above-mentioned second flange is cylindric, including inner surface,
Inner surface is located at the welding of the second conduit and third end in inner surface.
Further, in the utility model preferred embodiment, above-mentioned second conduit forms circular groove, circular groove with inner surface
Groove depth be 5-15mm.
Further, in the utility model preferred embodiment, above-mentioned second flange further includes in outer surface and connection
The distance of first joint face and the second joint face on surface and outer surface, the first joint face and the second joint face is 5-15mm.
Further, in the utility model preferred embodiment, multiple second through-holes are provided in above-mentioned second flange,
Each second through-hole runs through the first joint face and the second joint face.
Further, in the utility model preferred embodiment, the weld of above-mentioned inner surface and the second conduit is 60 °
Welding section.
Further, in the utility model preferred embodiment, the place contacted with inner surface at above-mentioned third end is set
It is equipped with Sealing shield ring.
Further, in the utility model preferred embodiment, the end set at above-mentioned third end has sealing ring.
Further, in the utility model preferred embodiment, above-mentioned second conduit is coated with anticorrosion internal layer and anti-corrosion
Lose outer layer.
The advantageous effect for the second conduit sealing structure that the preferred embodiment of the utility model provides is:Second conduit is arranged
It is located in second flange in second flange and third end, the end at the third end of the second conduit is located in second flange, makes
No pressure sealing structure is formd between two conduits and second flange, second flange directly can be to the third end of the second conduit
Nozzle coats, and will not be caused stress to the end at the third end of the second conduit, keep sealing technique effect more preferable, avoids being situated between in pipeline
Matter leaks and the generation of leakage accident, gives full play to advantage of the connection with preferable intensity and compactness of flange, suitable dimensions
The wide effect of range.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
The scope of protection of the utility model is also belonged to obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the attachment structure schematic diagram for the conduit no pressure sealing structure that the utility model embodiment provides;
Fig. 2 is the attachment structure schematic diagram for the first conduit sealing structure that the utility model embodiment provides;
Fig. 3 is the enlarged drawing at III in Fig. 2;
Fig. 4 is the enlarged drawing at IV in Fig. 2;
Fig. 5 is the attachment structure schematic diagram for the second conduit sealing structure that the utility model embodiment provides.
Icon:100- conduit no pressure sealing structures;130- the first conduit sealing structures;The second conduits of 140- sealing knot
Structure;200- first flanges;300- second flanges;The first conduits of 400-;The second conduits of 500-;110- gaskets;401- anticorrosions
Internal layer;402- anticorrosion outer layers;410- first ends;420- second ends;120- be connected by power connectors;210- inner ring surfaces;Outside 220-
Anchor ring;230- first sides;240- second sides;250- first through hole;The second welding sections 260-;The first welding sections 270-;
510- thirds end;The 4th ends 520-;310- inner surfaces;The outer surfaces 320-;The first joint faces of 330-;The second joint faces of 340-;
The second through-holes of 350-;360- thirds welding section;370- Sealing shield rings;380- sealing rings.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.Therefore, below to attached
The detailed description of the embodiments of the present invention provided in figure is not intended to limit claimed the scope of the utility model,
But it is merely representative of the selected embodiment of the utility model.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without creative efforts belongs to the model of the utility model protection
It encloses.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
Embodiment
Fig. 1 is the attachment structure schematic diagram of conduit no pressure sealing structure 100 provided in this embodiment.Referring to Fig. 1, this
In embodiment, conduit no pressure sealing structure 100 is used to seal the pipeline of two docking, causes to press at the sealing between pipeline
Power keeps sealing technique effect more preferable, avoids the generation of media leaks and leakage accident in steel pipe.
Conduit no pressure sealing structure 100 includes the first conduit sealing structure 130 and the second conduit sealing structure 140, the
One conduit sealing structure 130 includes the first conduit 400 and first flange 200, and the second conduit sealing structure 140 includes the second conduit
500 and second flange 300, the first conduit 400 and the docking of the second conduit 500, first flange 200 and second flange 300 are docked, the
One flange 200 is sheathed on 400 outer and the first conduit 400 the end docked with the second conduit 500 of the first conduit and stretches out the first method
Orchid 200, second flange 300 are sheathed on 500 outer and the second conduit 500 the end position docked with the first conduit 400 of the second conduit
In in second flange 300.
At the docking of first conduit 400 and the second conduit 500 place's mistake is docked with first flange 200 and second flange 300
It opens, makes to constitute no pressure sealing structure between the first conduit 400 and the second conduit 500, second flange 300 directly may be used
To dock the nozzle at place with the second conduit 500 to the first conduit 400 and the second conduit 500 docks place with the first conduit 400
Nozzle coats, and will not be caused stress to the end of the first conduit 400 and the end of the second conduit 500, make sealing technique effect more
It is good, the generation of pipeline internal medium leakage and leakage accident is avoided, the connection for giving full play to flange has preferable intensity and compactness
Advantage, the wide effect of suitable dimensions range.
Preferably, it is provided with gasket 110 at the docking of first flange 200 and second flange 300, keeps conduit no pressure close
The sealing effect of seal structure 100 is more preferable, can play secondary seepage, leakage protective effect.
In the present embodiment, the material of the first conduit 400 and the second conduit 500 can not be limited, as long as can carry out
This mode connects, such as:Steel pipe, plastic tube, iron pipe etc..Preferably, the first conduit 400 and the second conduit 500 are steel
It is commonplace to realize that the different medium of water supply, gas supply and fuel feeding carries out delivery application as anti-corrosion pipe for pipe, steel pipe.And steel
Connection between pipe and flange is even closer, easier for installation.
First conduit 400 is coated with anticorrosion internal layer 401 and anticorrosion outer layer 402, and the second conduit 500 is also coated in anticorrosion
Layer 401 and anticorrosion outer layer 402.Keep the anticorrosion ability of pipeline more preferable, disclosure satisfy that the transmission demand of various media.
Fig. 2 is the attachment structure schematic diagram for the first conduit sealing structure 130 that the utility model embodiment provides.Please together
Refering to fig. 1 and Fig. 2, in the present embodiment, the first conduit 400 includes first end 410 and second end 420,410 company of being provided with of first end
The be connected by power connector 120 for connecing actuating unit can when needing to be attached the first conduit 400 and the second conduit 500
By be connected by power connector 120, to connect actuating unit, the connection of auxiliary the first conduit 400 and the second conduit 500 is carried out.
First conduit 400 is set in first flange 200 and second end 420 stretches out first flange 200, the first conduit 400
Second end 420 end and the both ends of first flange 200 be staggered, make to be formed between the first conduit 400 and first flange 200
No pressure sealing structure, will not cause stress the end of the second end 420 of the first conduit 400, make sealing technique effect more
It is good, avoid the generation of pipeline internal medium leakage and leakage accident.
Preferably, the first conduit 400 is welded in first flange 200 and second end 420 stretches out first flange 200.Make
The connection of one conduit 400 and first flange 200 is more secured, also, avoids the generation of media leaks and leakage accident in conduit,
Welding procedure is simple and quick, saves work efficiency, so that whole pipe-line system is formed and is seamlessly connected nozzle, plays no pressure effect.
First flange 200 includes for annular shape, including inner ring surface 210, outer ring surface 220 and connection inner ring surface 210 and outer shroud
The first side 230 and second side 240 in face 220, are provided with multiple first through hole 250 in first flange 200, and each first
Through-hole 250 runs through first side 230 and second side 240, and the setting of first through hole 250 facilitates first flange 200 and second
Being fixedly connected between flange 300.
First conduit 400 is welded in first flange 200, inner ring surface 210 and the first conduit 400 welding and second end 420
Inner ring surface 210 is stretched out, the length of the stretching inner ring surface 210 of second end 420 is 5-15mm, first side 230 and second side 240
Distance be 5-15mm.
The length of the stretching inner ring surface 210 of second end 420 i.e. first method at a distance from first side 230 and second side 240
The thickness of orchid 200 is related, also related with the internal diameter of the first conduit 400.The internal diameter of first conduit 400 is bigger, then second end 420 is stretched
The length for going out inner ring surface 210 is longer, and the thickness of first flange 200 is thicker.The preferably inside radius and second end of the first conduit 400
420 stretch out the consistency of thickness of the length of inner ring surfaces 210 and first flange 200, make the first conduit 400 and first flange 200 with
And first conduit 400 and second flange 300 connection it is more secured.
Preferably, the weld of inner ring surface 210 and the first conduit 400 has close to the first welding section 270 of second end 420
With the second welding section 260 far from second end 420, the second welding section 260 is 60 ° of welding sections, and the first welding section 270 is 30 ° of welderings
Area is met, keeps its welding more secured.
Fig. 3 is the enlarged drawing at III in Fig. 2, Fig. 4 be IV in Fig. 2 at enlarged drawing.Also referring to Fig. 2-Fig. 4, this reality
It applies in example, the positioning electric welding of the second welding section 260 forms 60 ° of welding sections of bull nose, i.e. separate first conduit of the second welding section 260
400 and first flange 200 side be cancave cambered surface, radian be π/3rad, keep the welding of the second welding section 260 more secured.
First welding section, 270 face bonding forms 30 ° of welding sections of filleted corner, i.e. separate first conduit 400 and first of the first welding section 270
Flange 200 is followed successively by cambered surface, and radian is π/6rad, makes the first conduit 400 and first flange 200 in the first welding section 270
On the basis of stable connection, the connection of the first conduit 400 and the second conduit 500 is also more secured.
Second welding section 260 is arranged between the first conduit 400 and first flange 200, keeps its welding more secured.And the
One welding section 270 is arranged between first flange 200, second flange 300 and the first conduit 400, is arranged in 200 He of first flange
In second flange 300, so, it is 30 ° of welding sections, with the first conduit 400, the position of first flange 200 and second flange 300
Relationship matches, and connection is more secured.
Fig. 5 is the attachment structure schematic diagram of the second conduit sealing structure 140 provided in this embodiment.Also referring to Fig. 1
And Fig. 5, in the present embodiment, the second conduit 500 includes third end 510 and the 4th end 520, and the second conduit 500 is set to the second method
In orchid 300 and third end 510 is located in second flange 300, and the end at the third end 510 of the second conduit 500 is located at second flange
In 300, make to form no pressure sealing structure between the second conduit 500 and second flange 300, second flange 300 directly can be with
To the nozzle cladding at the third end 510 of the second conduit 500, the end at the third end 510 of the second conduit 500 will not be caused to press
Power keeps sealing technique effect more preferable, avoids the generation of pipeline internal medium leakage and leakage accident.
Preferably, the second conduit 500 is welded in second flange 300 and third end 510 is located in second flange 300, is made
Connection between second conduit 500 and second flange 300 is more secured.Welding procedure is simple and quick, saves work efficiency, makes whole
Pipe-line system, which is formed, is seamlessly connected nozzle, plays no pressure effect.
Second flange 300 includes that inner surface 310, outer surface 320 and connection inner surface 310 connect with the first of outer surface 320
Junction 330 and the second joint face 340, multiple second through-holes 350 are provided in second flange 300, and each second through-hole 350 is equal
Through the first joint face 330 and the second joint face 340, the setting of the second through-hole 350 facilitates first flange 200 and second flange
Being fixedly connected between 300.
Second flange 300 is cylindric, and first flange 200 is consistent with the structure of second flange 300 and shape, makes the first method
It can be docked between orchid 200 and second flange 300, the connection of conduit no pressure sealing structure 100 is more secured, also, shape
It is more beautiful.
Inner surface 310 is located at the welding of the second conduit 500 and third end 510 in inner surface 310,330 He of the first joint face
The distance of second joint face 340 is 5-15mm, and the second conduit 500 forms circular groove with inner surface 310, and the groove depth of circular groove is 5-
15mm。
The groove depth of circular groove is consistent with the stretching of second end 420 length of inner ring surface 210, keeps second end 420 and third end 510 right
Connect, to keep the connection of the first conduit 400 and the second conduit 500 more secured, the first conduit 400 and the second conduit 500 it is interior
Diameter is consistent, and with the consistency of thickness of second flange 300.
The weld of inner surface 310 and the second conduit 500 is third welding section 360, i.e. second flange 300 and third end
510 third welding section 360 is 60 ° of welding sections, keeps its welding more secured.The positioning electric welding of third welding section 360 forms outer circle
The side far from the second conduit 500 and second flange 300 of 60 ° of angle welding section, i.e. third welding section 360 is cancave cambered surface, arc
Degree is π/3rad, keeps the welding of third welding section 360 more secured.
The place contacted with inner surface 310 at third end 510 is provided with Sealing shield ring 370, avoids the anti-of the second conduit 500
Corrosion internal layer 401 is destroyed, also, keeps the second conduit 500 and the connection sealing of second flange 300 more preferable.
When between the first conduit 400, the second conduit 500, first flange 200 and second flange 300 connection formed conduit without
When pressure sealing structure 100, the first welding section 270 and third welding section 360 are contacted with the external world, and the second welding section 260
In inside, so it is respectively 60 ° of welding sections and 30 ° of welding sections.
The end set at third end 510 has sealing ring 380, close before the first conduit 400 is connect with the second conduit 500
Seal 380 is arranged in inner surface 310, so that the setting of sealing ring 380 is more stablized, when the first conduit 400 and the second conduit 500
When connection, the second end 420 of the first conduit 400 passes through sealing ring with the place of docking at the third end 510 of the second conduit 500
380 connections, make to be better able to form sealing structure between the first conduit 400 and the second conduit 500.Protect steel pipe inside and outside coating not
It is destroyed, the liquid in pipeline will not be by secondary pollution.
In the present embodiment, first through hole 250 is corresponding with the second through-hole 350, i.e., is provided with multiple first in first flange 200
Through-hole 250, is provided with multiple second through-holes 350 corresponding with first through hole 250 in second flange 300, and a screw rod passes through the
One through-hole 250 and corresponding second through-hole 350 are simultaneously fixed by nut.
First flange 200 is being set in outside the first conduit 400, second flange 300 is set in outside the second conduit 500, and
By be staggered with the place of docking of the first conduit 400 and the second conduit 500 at the docking of first flange 200 and second flange 300 when
It waits, will be fixed up between first flange 200 and second flange 300 by screw rod and nut, to make the first conduit 400 and the
Fixed effect between two conduits 500 is more preferable.
Preferably, first through hole 250 and second through-hole 350 corresponding with first through hole 250 coaxial arrangement, make screw rod and spiral shell
The installation of cap is all more convenient, also more laborsaving.
Second end 420 and third end 510 are docked, and second end 420 stretches out first flange 200 and in second flange 300,
Third end 510 is located in second flange 300, further illustrates the first conduit 400, the second conduit 500, first flange 200 and the
Link position relationship between two flanges 300 forms the sealed connection between the first conduit 400 and the second conduit 500.
Preferably, second end 420 is welded in first flange 200 and second flange 300, and third end 510 is welded in second
In flange 300.That is the second end 420 of the first conduit 400 is welded in first flange 200 and second flange 300, the first conduit
400 are welded in first flange 200 and second end 420 stretches out first flange 200, and the second end 420 for stretching out first flange 200 is set
It sets in second flange 300, the third end 510 of the second steel pipe is welded in second flange 300, makes setting in second flange 300
Interior second end 420 is docked with third end 510, and the third end 510 of the second end 420 of the first conduit 400 and the second conduit 500 is right
It connects, the position that second end 420 stretches out first flange 200 is fixed in second flange 300, to make second end 420 and third end
It is staggered with the place of docking of first flange 200 and second flange 300 at 510 docking, the first conduit 400 and the second conduit 500
It is staggered with the place of docking of first flange 200 and second flange 300 at docking, conduit no pressure sealing structure 100 will not be to pipeline
Sealing at cause stress, keep sealing technique effect more preferable, avoid pipeline internal medium leakage and leakage accident generation.
With good economic benefit and social benefit:Leakage accident, processing cost 1-5 occur for buried pipeline system
Wan Yuan increases considerably maintenance cost in case of multiple leakage accident, and leakage accident does not occur for no pressure conduit sealing technique,
Economic benefit is considerable.Meet user's anti-corrosion pipe it is buried it is water-tight do not repair, do not leak economic use value, life drink
With the requirement of water lines water quality non-secondary pollution green technology.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of second conduit sealing structure, which is characterized in that including second flange and the second conduit, second conduit includes
Third end and the 4th end, second conduit is set in the second flange and the third end is located at the second flange
Interior, the second flange is cylindric, including inner surface, and the inner surface is welded with second conduit and third end position
In in the inner surface, second conduit forms circular groove with the inner surface, and the groove depth of the circular groove is 5-15mm.
2. the second conduit sealing structure according to claim 1, which is characterized in that second conduit is steel pipe, described
Second conduit is welded in the second flange and the third end is located in the second flange.
3. the second conduit sealing structure according to claim 2, which is characterized in that the second flange further includes outer surface
With the first joint face and the second joint face for connecting the inner surface and the outer surface, first joint face and described the
The distance of two joint faces is 5-15mm.
4. the second conduit sealing structure according to claim 3, which is characterized in that be provided in the second flange multiple
Second through-hole, each second through-hole run through first joint face and second joint face.
5. the second conduit sealing structure according to claim 2, which is characterized in that the inner surface and second conduit
Third welding section be 60 ° of welding sections.
6. the second conduit sealing structure according to claim 2, which is characterized in that the third end with the inner surface
The place of contact is provided with Sealing shield ring.
7. the second conduit sealing structure according to claim 1, which is characterized in that the end set at the third end has close
Seal.
8. the second conduit sealing structure according to claim 2, which is characterized in that second conduit is coated in anticorrosion
Layer and anticorrosion outer layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721608929.8U CN207945378U (en) | 2017-11-27 | 2017-11-27 | A kind of second conduit sealing structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721608929.8U CN207945378U (en) | 2017-11-27 | 2017-11-27 | A kind of second conduit sealing structure |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207945378U true CN207945378U (en) | 2018-10-09 |
Family
ID=63703685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201721608929.8U Active CN207945378U (en) | 2017-11-27 | 2017-11-27 | A kind of second conduit sealing structure |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207945378U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110425355A (en) * | 2019-09-05 | 2019-11-08 | 南通睿智超临界科技发展有限公司 | A kind of extracting tube docking structure |
-
2017
- 2017-11-27 CN CN201721608929.8U patent/CN207945378U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110425355A (en) * | 2019-09-05 | 2019-11-08 | 南通睿智超临界科技发展有限公司 | A kind of extracting tube docking structure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN207945378U (en) | A kind of second conduit sealing structure | |
CN207945373U (en) | A kind of first conduit sealing structure | |
CN207555028U (en) | A kind of conduit no pressure sealing structure | |
CN204647619U (en) | Anticorrosion composite pipe connects special welding flanged joint | |
CN204493936U (en) | The joint connecting structure of anticorrosion composite pipe | |
CN202580486U (en) | Electric-welding connecting flare-type joint of small-bore plastic-coated steel pipe | |
CN2128332Y (en) | Lined insulation flange | |
CN208900892U (en) | A kind of corrosion resistant type petroleum pipeline | |
CN204729782U (en) | A kind of heavy caliber steel pipe fittings | |
CN205447060U (en) | Plastic -coated steel tube connects sealing connection pipe soon | |
CN204554199U (en) | Socket joint jointing type elbow | |
WO2019019269A1 (en) | Flange-type steam tracing pipe and method for mounting same | |
CN207715736U (en) | A kind of spliced rubber seal | |
CN107830280A (en) | A kind of conduit docking calculation | |
CN208687135U (en) | The connection structure of corrosion-proof pipe line | |
CN208564824U (en) | Diesel fuel injection system high-pressure oil pipe | |
CN203230984U (en) | Flange type lining pipeline connecting device | |
CN219413807U (en) | Disposable fashioned reducing pipe fitting | |
CN208900929U (en) | A kind of good straight pipe type steel modeling conversion interface structure of air-tightness | |
CN218152905U (en) | Boats and ships pipeline transformation drilling flange seal structure | |
CN217030254U (en) | Corrosion-resistant steel pipe | |
CN212537069U (en) | External pipeline of surface treatment line connects device soon | |
CN218818827U (en) | Three-way joint for pipeline | |
CN210566855U (en) | Water delivery pipe with socket type male and female connectors | |
CN217130732U (en) | Corrosion-resistant welded steel pipe |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |