CN108152894A - A kind of optical cable docking adapter - Google Patents
A kind of optical cable docking adapter Download PDFInfo
- Publication number
- CN108152894A CN108152894A CN201810076211.1A CN201810076211A CN108152894A CN 108152894 A CN108152894 A CN 108152894A CN 201810076211 A CN201810076211 A CN 201810076211A CN 108152894 A CN108152894 A CN 108152894A
- Authority
- CN
- China
- Prior art keywords
- optical cable
- main body
- clamping device
- importing part
- docking adapter
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 33
- 238000003032 molecular docking Methods 0.000 title claims abstract description 27
- 239000013307 optical fiber Substances 0.000 claims abstract description 23
- 230000008676 import Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000005194 fractionation Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3838—Means for centering or aligning the light guide within the ferrule using grooves for light guides
Abstract
The invention discloses a kind of optical cable docking adapters, it is related to technical field of optical fiber communication, it includes shell, main body and the tail sleeve with the main body butt and butt, the shell wraps the main body in an axial direction, the main body is hollow and equipped with embedded clamping device, the clamping device both ends are equipped with and are embedded in main body and can be along the importing part of the reciprocal sliding motion of main body length direction, the clamping device have the importing part be inserted into along its length in clamping device be softened the first state that enters for optical cable and the importing part exit clamping device after tightly clamp the second state of optical cable, it is installed with to be revealed in outside the shell on the importing part and pushes away button.The present invention has the advantages of simplifying user's operation, superior product quality, life of product is long, extended products use environment.
Description
Technical field
The present invention relates to technical field of optical fiber communication, and in particular to a kind of optical cable docking adapter.
Background technology
Under the driving of FTTB and FTTH, during the last one kilometer of incoming terminal user, the docking of two optical fiber or optical cable
Usage amount increases severely year by year, and in the case where ensureing joint quality, cost and convenience become domestic and international major operator and apply
Industrial and commercial focus.The docking mode in this field is divided into two kinds：Welding and cold joint.Welding mode of high cost and to operating personnel
Technical ability dexterity it is more demanding, but cold joint formula just has great advantage, and the cost of raw material is low, use cost is low, shows to what is used
Field environmental requirement is not harsh and easy to operate.
The existing such product insider system in market is called " optical fiber cold joint ", and optical fiber method of clamping is typically all to use
The mode for clamping that aluminium flake doubling outer plastic claw clip is held or side is jumped a queue, optical cable method of clamping are with metal claw mode.But
There are following problems：
1. product is substantially imitated and plagiarizes, model is single, and structure and appearance homogeneity are serious.
2. existing product comparison welding mode is really simple very much, but according to patent inventor from the viewpoint of, simple journey
Degree is also far from enough or even cumbersome and inconvenient.For example all product is intended to open V with auxiliary tool when reusing
The retaining mechanism of type groove opens product, but such product is often used in interim docking or repairing scene just, to user
Cause many inconvenience.For another example its optical cable method of clamping, it appears that the metal claw side of being caught in using extremely difficult operation of all unified agreement
Formula, when onsite application, are very inconvenient, have to be completely forced by other tools, and such as not exclusively press-in will make
It is not up to standard into optical cable tensile.
The metal V slots of either imitated 3M or the plastics V slots of PEI materials currently on the market, hardness and optical fiber it is hard
Degree be not a magnitude, cause its be pressurized for a long time after material creep, V-groove gradually become U-type groove even circular groove, cause
Docking is not coaxial or even optical fiber retracts.
Invention content
In order to overcome the shortcomings of background technology, the present invention provides a kind of simplified user's operation, superior product quality, life of product
It is long, the optical cable docking adapter of extended products use environment.
The technical solution adopted in the present invention：A kind of optical cable docking adapter, including shell, main body and with the main body two
The tail sleeve of head docking, the shell wrap the main body in an axial direction, and the main body is hollow and equipped with embedded clamping device, institute
It states clamping device both ends and is equipped with and be embedded in main body and can be along the importing part of the reciprocal sliding motion of main body length direction, the clamping
Mechanism, which has to be inserted into along its length in clamping device in the importing part, is softened the first state entered for optical cable and institute
It states importing part and exits after clamping device the second state for tightly clamping optical cable, be installed on the importing part and be revealed in the shell
Outer pushes away button.
The clamping device includes the cover board that is oppositely arranged up and down and V slotwares and is wrapped circumferentially around residence stating cover board and V slots
The elastic component one of part, the cover board include the A cover boards and B cover boards of two overlapping settings, the V slotwares and cover board cooperation
The centre on surface is equipped with the V-groove set along its length.
The cross section of the elastic component one is U-shaped, and notch, institute are equipped at the position that overlaps of its corresponding A cover board and B cover boards
State the upper and lower surface that elastic component one wraps the cover board and V slotwares.
Each importing part is designed with bolt, the cover board and V slotwares cooperation shape close to one end of the clamping device
Into pin hole corresponding with the bolt.
The bolt is in coniform, the tapered slot of pin hole, and the size both ends diameter of the pin hole is respectively less than described insert
Sell corresponding size both ends diameter.
It is described import part both sides be equipped with supply described in pushes away the mounting groove of button installation, the button that pushes away includes several mutually phases end to end
Installed part even, the installed part wrap the importing part around the mounting groove.
The main body is equipped with to fasten the buckle for importing part anticreep.
It is additionally provided on the importing part and the elastic component two for importing part and resetting pretightning force is provided, the buckle is matched with main body
The counterbore formed for the elastic component two placement is closed, the elastic component two wraps up the importing part along its length and both ends are distinguished
Button and counterbore are pushed away described in conflict.
The importing part center is equipped with optical fiber entrance hole, and entrance is in horn-like.
The beneficial effects of the invention are as follows：By using the pin structure with spring, user does not need to open docking adapter,
An action pushed away is done under the factory default state of docking adapter, you can complete the opening and locking function of optical fiber clamping device, come
The insertion for completing two optical fiber locks and repeats to dock.
It has the following advantages：1. being conveniently operated, easily reuse.It does not need to by any tool, it is only necessary to a letter
Optical fiber locking can be completed in single operation, and optical fiber locking mode is simpler more stable；2. improving optical property, life of product is improved.V
It is enduringly wrapped for a long time by shell and main body outside slotware and cover board, dust can be effectively prevent to enter, for a long time repeatedly severe
Environment uses, and simplifies user's operation, and improved products quality extends life of product, extended products use environment.
Description of the drawings
Fig. 1 is the structure diagram of optical cable docking adapter of the embodiment of the present invention.
Fig. 2 is that optical cable of embodiment of the present invention docking adapter removes the structure diagram after shell and tail sleeve.
Fig. 3 is clamping device and the structure diagram for importing part.
Fig. 4 is the structure diagram of clamping device.
Fig. 5 is the fractionation structural representation of clamping device.
Fig. 6 is the fractionation structural representation for importing part.
Fractionation structural representation based on Fig. 7.
Specific embodiment
Embodiments of the present invention is further illustrated below in conjunction with the accompanying drawings：
As shown in the figure, a kind of optical cable docking adapter, including shell 1, main body 2 and tail sleeve 3 with 2 butt and butt of main body,
The shell 1 wraps the main body 2 in an axial direction, and the main body 2 is hollow and equipped with embedded clamping device 4, the clamping machine
4 both ends of structure are equipped with and are embedded in main body 2 and can be along the importing part 5 of the reciprocal sliding motion of 2 length direction of main body, the clamping device
4 have to be inserted into along its length in clamping device 4 in the importing part 5 and are softened the first state that enters for optical cable and described
It imports part 5 and exits after clamping device 4 the second state for tightly clamping optical cable, be installed with and be revealed in outside described on the importing part 5
Button 7 is pushed away outside shell 1, by using the pin structure with spring, user does not need to open docking adapter, writes from memory in the manufacture of docking adapter
Recognize under state and do an action pushed away, you can the opening and locking function of optical fiber clamping device are completed, to complete two optical fiber
It is inserted into locking and repeats to dock, has the following advantages：1. being conveniently operated, easily reuse.It does not need to by any tool,
Need a simple operations that optical fiber locking can be completed, optical fiber locking mode is simpler more stable；2. improving optical property, improve
Life of product.It is enduringly wrapped for a long time by shell and main body outside V slotwares and cover board, dust can be effectively prevent to enter, for a long time
It is repeatedly used in adverse circumstances, simplifies user's operation, improved products quality extends life of product, extended products use environment.
The clamping device 4 includes the cover board that is oppositely arranged up and down and V slotwares 41 and is wrapped circumferentially around residence stating cover board and V
The elastic component 1 of slotware 41, the cover board include two overlapping A cover boards 43 set and B cover boards 44, the V slotwares 41 and institute
The centre for stating the surface of cover board cooperation is equipped with the V-groove 411 set along its length, this clamping device is docked for double-fiber,
It needs to penetrate by end when optical fiber penetrates, so clamping device will be opened by end.Therefore cover board is divided into A cover boards and B cover boards, A cover boards are beaten
B cover boards is driven to open together by being connected platform when opening, optical fiber is by penetrating B cover boards after A cover boards, after rear two section lids plate is fallen simultaneously
Pressed fiber.Second segment optical fiber is penetrated from B cover boards and is docked under B cover boards with first segment afterwards, and B cover boards fall rear V slots unitary closed,
The holding action of two optical fiber is completed, cover board uses sectional design, and centre is connected with linking platform, to complete band when left side is lifted
It plays right side to lift simultaneously, but the function of not influencing left side is lifted on right side.
The cross section of the elastic component 1 is U-shaped, and is equipped at the overlapping position of its corresponding A cover board 43 and B cover boards 44
Notch 421, the elastic component 1 wrap the upper and lower surface of the cover board and V slotwares 41, and elastic component one provides cover board and V slots
The restoring force that part closes up.
Each importing part 5 is designed with bolt 51, the cover board and V slotwares 41 close to one end of the clamping device 4
Cooperatively form with the 51 corresponding pin hole 52 of bolt, the bolt 51 be in coniform, the 52 tapered slot of pin hole, the pin
The size both ends diameter in hole 52 is respectively less than the 51 corresponding size both ends diameter of bolt, and bolt is by importing the sliding motion of part
Pin hole is passed in and out, since pin hole size is less than bolt, bolt can gradually strut pin hole during entrance, make V slotwares and cover board point
From.
It is described import part 5 both sides be equipped with supply described in push away the mounting grooves 53 of 7 installation of button, the button 7 that pushes away includes several mutually
Installed part 71 from beginning to end, the installed part 71 wrap the importing part 5 around the mounting groove 53, and the main body 2 is set
It is useful for fastening the buckle 21 for importing 5 anticreep of part, it, will after the injecting glue of glue position after being coordinated in factory-assembled with concave-convex tooth
Buckle is bonded with main body, and described import is additionally provided with the offer elastic component 2 54 for importing part 5 and resetting pretightning force on part 5, described
Buckle 21 cooperatively forms the counterbore for the elastic component 2 54 placement with main body 2, and the elastic component 2 54 wraps up along its length
The importing part 5 and both ends contradict described push away and detain 7 and counterbore respectively, are being intended to penetrate and detained outside product pushing away before drawn optical fiber
Do pin can be completed in an action for pushing away and unclamping insertion and disengaging.
5 center of the importing part is equipped with optical fiber entrance hole 55, and entrance is in horn-like, and optical cable is facilitated precisely to insert
Enter.
Embodiment is not construed as the limitation to invention, but any spiritual improvements introduced based on the present invention, all Ying Ben
Within the protection domain of invention.
Claims (9)
1. a kind of optical cable docking adapter, it is characterised in that：It includes shell（1）, main body（2）And with the main body（2）Both ends pair
The tail sleeve connect（3）, the shell（1）The main body is wrapped in an axial direction（2）, the main body（2）It is hollow and equipped with embedded folder
Hold mechanism（4）, the clamping device（4）Both ends are equipped with and are embedded in main body（2）In and can be along main body（2）Length direction is toward polyslip
The importing part of movement（5）, the clamping device（4）With in the importing part（5）It is inserted into clamping device along its length（4）In
It is softened the first state entered for optical cable and the importing part（5）Exit clamping device（4）The of optical cable is tightly clamped afterwards
Two-state, the importing part（5）On be installed with and be revealed in the shell（1）Outer pushes away button（7）.
2. optical cable docking adapter according to claim 1, it is characterised in that：The clamping device（4）It is set including opposite up and down
The cover board and V slotwares put（41）And it is wrapped circumferentially around residence and states cover board and V slotwares（41）Elastic component one（42）, the cover board packet
Include the A cover boards of two overlapping settings（43）With B cover boards（44）, the V slotwares（41）With the centre on the surface of cover board cooperation
Equipped with the V-groove set along its length（411）.
3. optical cable docking adapter according to claim 2, it is characterised in that：The elastic component one（42）Cross section it is U-shaped,
And its corresponding A cover board（43）With B cover boards（44）Notch is equipped at overlapping position（421）, the elastic component one（42）It wraps
The cover board and V slotwares（41）Upper and lower surface.
4. optical cable docking adapter according to claim 1, it is characterised in that：Each importing part（5）Close to the clamping
Mechanism（4）One end be designed with bolt（51）, the cover board and V slotwares（41）It cooperatively forms and the bolt（51）Corresponding pin
Hole（52）.
5. optical cable docking adapter according to claim 4, it is characterised in that：The bolt（51）In coniform, the pin hole
（52）Tapered slot, the pin hole（52）Size both ends diameter be respectively less than the bolt（51）Corresponding size both ends diameter.
6. optical cable docking adapter according to claim 1, it is characterised in that：The importing part（5）Both sides are equipped with described in confession and push away
Button（7）The mounting groove of installation（53）, it is described to push away button（7）Including several installed parts mutually from beginning to end（71）, the installation
Part（71）Around the mounting groove（53）Wrap the importing part（5）.
7. optical cable docking adapter according to claim 1, it is characterised in that：The main body（2）Equipped with for fastening described lead
Enter part（5）The buckle of anticreep（21）.
8. optical cable docking adapter according to claim 7, it is characterised in that：The importing part（5）On be additionally provided with described in offer
Import part（5）Reset the elastic component two of pretightning force（54）, the buckle（21）With main body（2）It cooperatively forms for the elastic component two
（54）The counterbore of placement, the elastic component two（54）The importing part is wrapped up along its length（5）And both ends contradict respectively it is described
Push away button（7）And counterbore.
9. optical cable docking adapter according to claim 1, it is characterised in that：The importing part（5）Center is equipped with optical fiber
Entrance hole（55）, entrance is in horn-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076211.1A CN108152894A (en) | 2018-01-26 | 2018-01-26 | A kind of optical cable docking adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076211.1A CN108152894A (en) | 2018-01-26 | 2018-01-26 | A kind of optical cable docking adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108152894A true CN108152894A (en) | 2018-06-12 |
Family
ID=62458950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810076211.1A Pending CN108152894A (en) | 2018-01-26 | 2018-01-26 | A kind of optical cable docking adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108152894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273159A (en) * | 2021-12-20 | 2022-04-05 | 江苏永鼎光电子技术有限公司 | Double-core tail fiber and auxiliary gluing tool thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4784456A (en) * | 1987-05-06 | 1988-11-15 | E. I. Du Pont De Nemours And Company | Fiber optic connector |
| US5550944A (en) * | 1994-05-04 | 1996-08-27 | The Whitaker Corporation | Fibre optic connector |
| JP2006184491A (en) * | 2004-12-27 | 2006-07-13 | Sanwa Denki Kogyo Co Ltd | Field assembly optical connector |
| US20080247710A1 (en) * | 2004-07-16 | 2008-10-09 | Tomoyasu Oike | Optical Connector and Optical Fiber Connecting System |
| JP2010169969A (en) * | 2009-01-23 | 2010-08-05 | Japan Recom Ltd | Closure for optical cable connection |
| KR20110004240A (en) * | 2009-07-07 | 2011-01-13 | 고려오트론(주) | Optical connector for assembling in the field |
| US20160223752A1 (en) * | 2015-01-30 | 2016-08-04 | Fujikura Ltd. | Optical fiber holding device |
| WO2017024992A1 (en) * | 2015-08-07 | 2017-02-16 | 爱德奇电讯国际贸易（上海）有限公司 | Optical fibre processing apparatus |
| CN207730994U (en) * | 2018-01-26 | 2018-08-14 | 中科光电集团有限公司 | A kind of optical cable docking adapter |
-
2018
- 2018-01-26 CN CN201810076211.1A patent/CN108152894A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4784456A (en) * | 1987-05-06 | 1988-11-15 | E. I. Du Pont De Nemours And Company | Fiber optic connector |
| US5550944A (en) * | 1994-05-04 | 1996-08-27 | The Whitaker Corporation | Fibre optic connector |
| US20080247710A1 (en) * | 2004-07-16 | 2008-10-09 | Tomoyasu Oike | Optical Connector and Optical Fiber Connecting System |
| JP2006184491A (en) * | 2004-12-27 | 2006-07-13 | Sanwa Denki Kogyo Co Ltd | Field assembly optical connector |
| JP2010169969A (en) * | 2009-01-23 | 2010-08-05 | Japan Recom Ltd | Closure for optical cable connection |
| KR20110004240A (en) * | 2009-07-07 | 2011-01-13 | 고려오트론(주) | Optical connector for assembling in the field |
| US20160223752A1 (en) * | 2015-01-30 | 2016-08-04 | Fujikura Ltd. | Optical fiber holding device |
| WO2017024992A1 (en) * | 2015-08-07 | 2017-02-16 | 爱德奇电讯国际贸易（上海）有限公司 | Optical fibre processing apparatus |
| CN207730994U (en) * | 2018-01-26 | 2018-08-14 | 中科光电集团有限公司 | A kind of optical cable docking adapter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273159A (en) * | 2021-12-20 | 2022-04-05 | 江苏永鼎光电子技术有限公司 | Double-core tail fiber and auxiliary gluing tool thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101083159B (en) | Double wire cord and portable audio device using the same | |
| US20140026717A1 (en) | Coating removal tool used for optical fiber and method of removing coating | |
| US20060018604A1 (en) | Optical fiber connector | |
| US20170363828A1 (en) | Qsfp+ module hot-pluggable unlocking structure | |
| US5155900A (en) | Hand tool for assembling a fiber optic connector | |
| CN207730994U (en) | A kind of optical cable docking adapter | |
| CN108152894A (en) | A kind of optical cable docking adapter | |
| JP2009104069A (en) | Optical connector fixing member and installation method of optical connector | |
| CN211086691U (en) | FSC quick connector | |
| CN202210167U (en) | Hot melt type on-site assembly optical fiber movable connector | |
| CN205620583U (en) | LC high density pair connector | |
| JP2006323067A (en) | Mechanical connection type optical connector and optical connector assembling tool | |
| US9250394B2 (en) | Connector for ribbon optical fiber | |
| KR200488389Y1 (en) | Wire fixing unit for wire follower | |
| CN202093208U (en) | Rubber-sheathed wire fiber connector | |
| CN213069271U (en) | Optical fiber capillary structure | |
| CN205562884U (en) | Multicore optical connector and multicore fiber optic plug who cooperates this multicore optical connector | |
| CN203732761U (en) | Field-mountable optical fiber splicing device | |
| CN210272899U (en) | USB connecting wire | |
| CN202401077U (en) | Punching pin clamping device of leather punching machine | |
| US6726369B1 (en) | Field repairable, breakaway housing for optical fiber connector | |
| CN211905774U (en) | SC type butterfly lead-in cable connector | |
| CN202815275U (en) | Fiber connector clamping structure | |
| CN208488582U (en) | A kind of optical cable clamp structure for being easily installed and dismantling | |
| JPH04347806A (en) | Optical multi-fiber connector plug |
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 | ||
| CB02 | Change of applicant information |
Address after: 325000 288 east two road, Nan bin street, Ruian, Wenzhou, Zhejiang. Applicant after: ZHONGKE PHOTOELECTRIC GROUP Co.,Ltd. Address before: 325000 288 east two road, Nan bin street, Ruian, Wenzhou, Zhejiang. Applicant before: Zhongke optoelectronic Co.,Ltd. Address after: 325000 288 east two road, Nan bin street, Ruian, Wenzhou, Zhejiang. Applicant after: Zhongke optoelectronic Co.,Ltd. Address before: 325000 288 east two road, Nan bin street, Ruian, Wenzhou, Zhejiang. Applicant before: ZHEJIANG ZHONGKE PHOTOELECTRIC CO.,LTD. |
|
| CB02 | Change of applicant information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200326 Address after: 518 Yunji Avenue, Hengnan County, Hengyang City, Hunan Province Applicant after: HUNAN ZHONGKE PHOTOELECTRIC Co.,Ltd. Address before: 325000 288 east two road, Nan bin street, Ruian, Wenzhou, Zhejiang. Applicant before: ZHONGKE PHOTOELECTRIC GROUP Co.,Ltd. |
|
| TA01 | Transfer of patent application right |