CN109270993A - A kind of concealed pull handle arrangement of pluggable mould group - Google Patents

A kind of concealed pull handle arrangement of pluggable mould group Download PDF

Info

Publication number
CN109270993A
CN109270993A CN201810971331.8A CN201810971331A CN109270993A CN 109270993 A CN109270993 A CN 109270993A CN 201810971331 A CN201810971331 A CN 201810971331A CN 109270993 A CN109270993 A CN 109270993A
Authority
CN
China
Prior art keywords
knob
power supply
connect
unlock piece
collet
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
Application number
CN201810971331.8A
Other languages
Chinese (zh)
Other versions
CN109270993B (en
Inventor
杨杰
曹真才
李小政
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.)
Zhengzhou Yunhai Information Technology Co Ltd
Original Assignee
Zhengzhou Yunhai Information Technology 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 Zhengzhou Yunhai Information Technology Co Ltd filed Critical Zhengzhou Yunhai Information Technology Co Ltd
Priority to CN201810971331.8A priority Critical patent/CN109270993B/en
Publication of CN109270993A publication Critical patent/CN109270993A/en
Application granted granted Critical
Publication of CN109270993B publication Critical patent/CN109270993B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/18Packaging or power distribution
    • G06F1/183Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
    • G06F1/188Mounting of power supply units
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Casings For Electric Apparatus (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a kind of concealed pull handle arrangement of pluggable mould group, including cabinet, power supply, power pack and BBU;The power supply and BBU is separately positioned in power pack, and power supply knob and power supply Elastic buckle are provided on the outside of the power supply;The lower part of the power pack is provided with handle component, preceding collet and rear collet;The handle component includes knob ontology, knob unlock piece, reset spring and elastic slice, the knob ontology is hinged by pin and preceding collet, the knob unlock piece front end is connect with knob ontology, rear end is connect with rear collet, described reset spring one end is connect with knob unlock piece, the other end is connect with rear collet, and the elastic slice rear end is connected to the bottom of power pack, and front end is connect with knob ontology.The present invention not only effectively saves chassis space, but also avoids the generation of maloperation, simplifies the operation interface of user, and the user experience is improved, improves the reliability of product.

Description

A kind of concealed pull handle arrangement of pluggable mould group
Technical field
The present invention relates to server apparatus technical field more particularly to a kind of concealed pull handle arrangement of pluggable mould group.
Background technique
Server, memory product have many modular designs, modular to design the maintenance behaviour for facilitating complete machine Make.With the complication of product, individual module (mould group) tends to complicate, occur include in single module, it is nested another The case where a mould group.And there is the demand for extracting cabinet maintenance in every part of this nested type mould group, if the knob of every part Unlocking mechanism is all exposed on the outside of mould group, and user is difficult the first reaction and judgement when operating to mould group and goes out which is operated Knob can unlock corresponding mould group, it may appear that the situation of trial and error causes user experience bad, such as power supply (PSU) and reserce cell (BBU) mould group, it is also exposed outside mould group with knob and shell fragment buckle structure, the knob unlocking structure of entire mould group on power supply Side.On the other hand, nested type mould group is limited by installation space, and knob can not be arranged in nested groups, thus cause It is not easy to plug, brings many troubles to daily maintenance.
Summary of the invention
In order to overcome disadvantages mentioned above of the existing technology, the present invention proposes a kind of concealed knob knot of pluggable mould group Structure, power supply knob is located on the outside of cabinet in this configuration, and the knob of entire mould group is using concealed, only meeting on user interface See a knob operating position, can only once be unlocked operation to a knob;If wanting to extract power supply, direct operation power On power supply knob and power supply Elastic buckle;If wanting to extract BBU, needs first to extract power supply, can just see concealed knob, Then it is operated;The present invention not only effectively saves chassis space, but also avoids the generation of maloperation, simplifies the behaviour of user Make interface, the user experience is improved, improves the reliability of product.
The technical scheme adopted by the invention to solve the technical problem is that:
A kind of concealed pull handle arrangement of pluggable mould group, including cabinet, power supply, power pack and BBU;The power supply and BBU is separately positioned in power pack, and power supply knob and power supply Elastic buckle, the power supply bullet are provided on the outside of the power supply Property buckle one end and stretch out on the outside of power supply, the other end and power pack the power pack lower part that fastens are provided with handle component;Institute The handle component stated is set in power pack, and power pack is connect by handle component with cabinet;The lower part of the power pack is also Preceding collet and rear collet are installed;The handle component includes knob ontology, knob unlock piece, reset spring and elastic slice, institute The knob ontology stated is hinged by pin and preceding collet, and the knob unlock piece front end is connect with knob ontology, and rear end is with after Collet connection, described reset spring one end are connect with knob unlock piece, and the other end is connect with rear collet, the elastic slice rear end It is connected to the bottom of power pack, front end is connect with knob ontology.
The knob ontology includes knob portion, holding section, and the front end in knob portion is provided with card slot, the left side in knob portion with The preceding curved connection of collet left folding, knob portion right side and the preceding curved connection of collet right folding;The front bottom end of the cabinet is provided with cabinet and inserts Hole, the holding section and cabinet jack cooperate.
Curved, the curved and rear bending of right folding equipped with left folding of the front end of the rear collet, the curved and described knob unlock piece of left folding Left side cooperation, right folding is curved to be cooperated with knob unlock piece right side, and knob unlock piece is curved along left folding, right folding is curved slides back and forth, described Spring receiving hole is provided in bending afterwards to connect with the reset spring.
The T-shaped structure of knob unlock piece, knob unlock piece front end are provided with claw, and claw is matched with the card slot Conjunction, knob unlock piece rear end sides are equipped with left scotch, right scotch, left scotch and the curved connection of left folding, right scotch and the right side Bending connection, knob are equipped with pillar in the middle part of unlock piece rear end, and pillar is connect with the reset spring.
Described elastic slice one end is provided with elastic cantilever, and elastic cantilever is connect with the knob portion.
The beneficial effects of the present invention are:
1. power supply knob is located on the outside of cabinet, the handle component of entire mould group is using concealed, on user interface only It can be appreciated that a knob operating position, can only once be unlocked operation to a knob;If wanting to extract power supply, directly operation is electric Power supply knob and power supply Elastic buckle on source;If wanting to extract BBU, needs first to extract power supply, can just see handle component, Then it is operated, the present invention not only effectively saves chassis space, but also avoids the generation of maloperation, simplifies the behaviour of user Make interface, the user experience is improved, improves the reliability of product.
2. knob ontology includes knob portion and holding section, wherein knob portion front end is provided with card slot, under normal operating conditions, The claw clamping of card slot and unlock piece, holding section are caught in cabinet jack;When needing to safeguard, claw and card slot are unlocked, and knob turns Dynamic, cabinet jack is produced in holding section, this kind design focuses on multiple functions on one part, reduces amount of parts and cooperation Relationship improves the globality and reliability of structure.
3. noseplate and rear bottom plate all use integrally formed bending structure, structural integrity is good, can once be punched bending Molding, production cost are low.
4. knob unlock piece only passes through pressing front end, knob unlock piece is slided backward relative to rear collet, makes claw and card Slot unlock, while the elastic slice of power pack both ends setting has elastic cantilever, help shakes hands to bounce automatically;After attended operation, Rotation knob ontology, while knob unlock piece is pressed, when the card slot for ontology of shaking hands is located at below claw, unclamp knob unlock Part, unlock piece of shaking hands at this time reset under the action of reset spring, and claw engages with card slot;Unlock and it is sealed it is ingenious in design, make Valence is cheap, easy to use, effectively increases working efficiency and experience that user plugs mould group.
Detailed description of the invention
Fig. 1 is pluggable mould group and cabinet installation diagram;
Fig. 2 is the partial view of pluggable mould group and cabinet assembly;
Fig. 3 is pluggable mould group installation diagram;
Fig. 4 is the pluggable mould group perspective view after the removal of power supply mould group;
Fig. 5 is concealed pull handle arrangement perspective view one;
Fig. 6 is concealed pull handle arrangement perspective view two;
Fig. 7 is the concealed pull handle arrangement perspective view under unlocked state;
In figure, 1- cabinet;11- cabinet jack;2- power supply;21- power supply knob;22- power supply Elastic buckle;3- power pack; Collet before 31-;Collet after 32-;321- left folding is curved;322- right folding is curved;Bending after 323-;324- spring receiving hole;4-BBU;5- Handle component;51- knob ontology;511- knob portion;The holding section 512-;513- card slot;52- knob unlock piece;521- claw; The left scotch of 522-;The right scotch of 523-;524- pillar;53- reset spring;54- elastic slice;541- elastic cantilever;55- pin.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation Example is only a part of the embodiment of the present invention, instead of all the embodiments.
As shown in figs. 1-7, a kind of concealed pull handle arrangement of pluggable mould group, including cabinet 1, power supply 2, power pack 3 and BBU4;The power supply 2 and BBU4 are separately positioned in power pack 3, and power supply knob 21 and electricity are provided on the outside of the power supply 2 2 outside of power supply is stretched out in source Elastic buckle 22,22 one end of power supply Elastic buckle, and the other end fastens with power pack 3;The power supply 3 lower part of box is provided with handle component 5, and the handle component 5 is hidden in power pack 3, power pack 3 by handle component 5 with Cabinet 1 connects;The lower part of the power pack 3 is also equipped with preceding collet 31 and rear collet 32;The handle component 5 includes drawing Hand ontology 51, knob unlock piece 52, reset spring 53 and elastic slice 54, the knob ontology 51 pass through pin 55 and preceding collet 31 Hingedly, 52 front end of knob unlock piece is connect with knob ontology 51, and the rear end for unlock piece of shaking hands is connect with rear collet 32, institute 53 one end of reset spring stated is socketed on knob unlock piece 52, and the other end is connect with rear collet 32,54 rear end of elastic slice It is connected to the bottom of power pack 3,54 front end of elastic slice is connect with knob ontology 51.
Power supply knob 21 is located at 1 outside of cabinet, and the use of handle component 5 of entire mould group is concealed, on user interface It will only see a knob operating position, can only once be unlocked operation to a knob;If wanting to extract power supply 2, directly grasp Make power supply knob 21 and the power supply Elastic buckle 22 on power supply 2;If wanting to extract BBU4, needs first to extract power supply 2, can just see It to handle component 5, is then operated, the present invention not only effectively saves chassis space, but also avoids the generation of maloperation, letter The operation interface of user is changed, the user experience is improved, improves the reliability of product.
The knob ontology 51 includes knob portion 511, holding section 512, and the front end in knob portion 511 is provided with card slot 513, The left side in knob portion 511 and the curved connection of preceding 31 left folding of collet, 511 right side of knob portion and the curved connection of preceding 31 right folding of collet;The machine The front bottom end of case 1 is provided with cabinet jack 11, and the holding section 512 and cabinet jack 11 cooperate.Under normal operating conditions, Card slot 513 is caught in cabinet jack 11 by 52 clamping of knob unlock piece, holding section 512;When needing to safeguard, card slot 513 is unlocked, Cabinet jack is produced in 51 rotation of knob, holding section 512, this kind design focuses on multiple functions on one part, reduces zero Number of packages amount and matching relationship improve the globality and reliability of structure.
The front end of the rear collet 32 is equipped with left folding curved 321, right folding curved 322 and rear bending 323, left folding curved 321 and institute Cooperate on the left of the knob unlock piece 52 stated, cooperates on the right side of right folding curved 322 and knob unlock piece 52, knob unlock piece 52 is curved along left folding 321, right folding curved 322 slides back and forth, and spring receiving hole 324 is provided in the rear bending 523 and the reset spring 53 connects It connects.
Noseplate 31 and rear bottom plate 32 are all made of integrally formed bending structure, and structural integrity is good, can once be punched curved Foldable type, production cost are low.
The T-shaped structure of knob unlock piece 52, knob 52 front end of unlock piece are provided with claw 521, claw 521 and institute The card slot 513 stated cooperates, and knob 52 rear end side of unlock piece is equipped with left scotch 522, right scotch 523, left scotch 522 with Curved 321 connection of left folding, right scotch 523 connect with right folding curved 322, equipped with pillar 524 in the middle part of rear end, pillar 524 with it is described Reset spring 53 connects.
Described 54 one end of elastic slice is provided with elastic cantilever 541, and elastic cantilever 541 is connect with the knob portion 511.
Unlock piece 52 shake hands only by pressing front end, slides backward knob unlock piece 52 relative to rear collet 32, makes card Pawl 521 is unlocked with card slot 513, while the elastic slice 54 of 3 both ends of power pack setting has elastic cantilever 541, and help shakes hands 51 automatically It bounces;After attended operation, rotation knob ontology 51, while knob unlock piece 52 is pressed, when the card slot 513 of knob ontology 51 When positioned at 521 lower section of claw, knob unlock piece 52 is unclamped, unlock piece 52 of shaking hands at this time resets under the effect of reset spring 53, blocks Pawl 521 engages with card slot 513;It unlocks and sealed ingenious in design, cheap, easy to use, effectively increases user and plug mould The working efficiency of group and experience.
A kind of concealed pull handle arrangement maintenance process of pluggable mould group is as follows:
In the outer surface of total, only power supply knob 21 and power supply Elastic buckle 22 protrudes from 1 outside of cabinet, can grasp Make.And the handle component 5 of entire mould group is hidden in cabinet, cannot be directly unlocked and pulling operation.Power supply mould group 2 As a submodule group of entire pluggable mould group, plug operation can be individually carried out.Power supply Elastic buckle 22 is sticked in electricity when flat With fixed power source 2 in source capsule 3, when needing to safeguard, power supply Elastic buckle 22 is lifted, finger pulls power supply knob 21 can be by power supply 2 extract.Power pack 3 is sticked in the cabinet jack 11 of cabinet lower part by holding section 512 of shaking hands, and after power supply 2 is extracted, can be seen To handle assembly 5, pressing knob unlock piece 52, knob unlock piece 52 is slided backward relative to rear collet 32, makes claw 521 and card Slot 513 unlocks, while the elastic slice 54 of 3 both ends of power pack setting has elastic cantilever 541, and help ontology 51 of shaking hands bounces automatically, Cabinet jack 11 is produced in holding section 512, and finger pulls knob ontology 51 that can pull out entire mould group from cabinet 1.
After the completion of attended operation, push knob ontology 51 that entire mould group is pushed into cabinet 1, rotation knob ontology 51, together When pressing knob unlock piece 52, knob unlock piece 52 slided backward relative to rear collet 32, until shake hands ontology 51 card slot 513 When positioned at 521 lower section of claw, knob unlock piece 52 is unclamped, unlock piece 52 of shaking hands at this time resets under the action of reset spring, blocks Pawl 521 engages with card slot 513, and holding section 512 is inserted into cabinet jack 11, and entire mould group engages with cabinet 1;Push power supply knob 21 are pushed into power supply 2 in power pack 3, depress power supply Elastic buckle 22, are sticked in power supply 2 in power pack 3.
This kind of structure not only effectively saves chassis space, but also avoids the generation of maloperation, simplifies the operation of user Interface, the user experience is improved, improves the reliability of product.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work The every other embodiment obtained, should fall within the scope of the present invention.

Claims (5)

1. a kind of concealed pull handle arrangement of pluggable mould group, including cabinet, power supply, power pack and BBU;The power supply and BBU is separately positioned in power pack, and power supply knob and power supply Elastic buckle, the power supply bullet are provided on the outside of the power supply Property buckle one end and stretch out on the outside of power supply, the other end fastens with power pack;The power pack lower part is provided with handle component, electricity Source capsule is connect by handle component with cabinet, it is characterised in that: the power pack lower part is additionally provided with preceding collet and rear collet; The handle component includes knob ontology, knob unlock piece, reset spring and elastic slice, the knob ontology by pin with Preceding collet is hinged, and the knob unlock piece front end is connect with knob ontology, and knob unlock piece rear end is connect with rear collet, described Reset spring one end with knob unlock piece connect, the other end is connect with rear collet, and the elastic slice rear end is connected to power pack Bottom, elastic slice front end with knob ontology connect.
2. a kind of concealed pull handle arrangement of pluggable mould group as described in claim 1, which is characterized in that the knob sheet Body includes knob portion, holding section, and the front end in knob portion is provided with card slot, the left side in knob portion and the preceding curved connection of collet left folding, is drawn Hand right side and the preceding curved connection of collet right folding;The front bottom end of the cabinet is provided with cabinet jack, the holding section and machine The cooperation of case jack.
3. a kind of concealed pull handle arrangement of pluggable mould group as described in claim 1, which is characterized in that the rear collet Front end be equipped with that left folding is curved, the curved and rear bending of right folding, left folding it is curved with cooperate on the left of the knob unlock piece, right folding is curved with knob Cooperation on the right side of unlock piece, knob unlock piece is curved along left folding, right folding is curved slides back and forth, and is provided with spring receiving hole in the rear bending It is connect with the reset spring.
4. a kind of concealed pull handle arrangement of pluggable mould group as claimed in claim 2 or claim 3, which is characterized in that the drawing The T-shaped structure of hand unlock piece, knob unlock piece front end are provided with claw, and claw and the card slot cooperate, after unlock piece of shaking hands Two sides are held to be equipped with left scotch, right scotch, left scotch and the curved connection of left folding, right scotch and the curved connection of right folding, knob solution Pillar is equipped in the middle part of latch fitting rear end, pillar is connect with the reset spring.
5. a kind of concealed pull handle arrangement of pluggable mould group as claimed in claim 1 or 2, which is characterized in that the bullet Piece one end is provided with elastic cantilever, and elastic cantilever is connect with the knob portion.
CN201810971331.8A 2018-08-24 2018-08-24 Concealed handle structure of pluggable module Active CN109270993B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810971331.8A CN109270993B (en) 2018-08-24 2018-08-24 Concealed handle structure of pluggable module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810971331.8A CN109270993B (en) 2018-08-24 2018-08-24 Concealed handle structure of pluggable module

Publications (2)

Publication Number Publication Date
CN109270993A true CN109270993A (en) 2019-01-25
CN109270993B CN109270993B (en) 2021-11-02

Family

ID=65154571

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810971331.8A Active CN109270993B (en) 2018-08-24 2018-08-24 Concealed handle structure of pluggable module

Country Status (1)

Country Link
CN (1) CN109270993B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109933158A (en) * 2019-03-19 2019-06-25 苏州浪潮智能科技有限公司 A kind of machine box for server and its slidingtype power delivery structure
CN114737831A (en) * 2022-04-20 2022-07-12 苏州浪潮智能科技有限公司 Tool-free handle lock for server node and server

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5741055A (en) * 1996-10-15 1998-04-21 Chen; Teng-Chun Drawer for a hard disk drive
US20060044776A1 (en) * 2004-08-27 2006-03-02 Hon Hai Precision Industry Co., Ltd. Fixing mechanism for printed circuit board
CN105353845A (en) * 2015-11-24 2016-02-24 英业达科技有限公司 Tray module
CN206258793U (en) * 2016-12-13 2017-06-16 郑州云海信息技术有限公司 A kind of machine box for server for being provided with hiding handle
CN107801344A (en) * 2017-10-20 2018-03-13 郑州云海信息技术有限公司 A kind of pluggable module
CN207369485U (en) * 2017-11-10 2018-05-15 郑州云海信息技术有限公司 It is a kind of that there is the concealed power supply module for helping plug handle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5741055A (en) * 1996-10-15 1998-04-21 Chen; Teng-Chun Drawer for a hard disk drive
US20060044776A1 (en) * 2004-08-27 2006-03-02 Hon Hai Precision Industry Co., Ltd. Fixing mechanism for printed circuit board
CN105353845A (en) * 2015-11-24 2016-02-24 英业达科技有限公司 Tray module
CN206258793U (en) * 2016-12-13 2017-06-16 郑州云海信息技术有限公司 A kind of machine box for server for being provided with hiding handle
CN107801344A (en) * 2017-10-20 2018-03-13 郑州云海信息技术有限公司 A kind of pluggable module
CN207369485U (en) * 2017-11-10 2018-05-15 郑州云海信息技术有限公司 It is a kind of that there is the concealed power supply module for helping plug handle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109933158A (en) * 2019-03-19 2019-06-25 苏州浪潮智能科技有限公司 A kind of machine box for server and its slidingtype power delivery structure
CN114737831A (en) * 2022-04-20 2022-07-12 苏州浪潮智能科技有限公司 Tool-free handle lock for server node and server

Also Published As

Publication number Publication date
CN109270993B (en) 2021-11-02

Similar Documents

Publication Publication Date Title
CN208797273U (en) A kind of drawstring unlocking type wire and cable connector and connector assembly
CN100568637C (en) A kind of adaptor for plug and socket
CN109270993A (en) A kind of concealed pull handle arrangement of pluggable mould group
CN104300305B (en) Electronic card tray, electronic card connecting device and electronic device
CN205918256U (en) Electric control lock and intelligent locker with emergent function of unblanking
CN203493385U (en) Electric cooker
CN107801344A (en) A kind of pluggable module
CN109209060A (en) A kind of chassis cover locking device with assist function
CN203941960U (en) A kind of drawer-type battery box structure
CN106948671A (en) A kind of intelligent case and bag fingerprint electronic lock
TW201413435A (en) Electronic device, electronic system and power unit and hot-swap thereof
CN106532353A (en) Novel connector button two-stage unlocking mechanism
CN201498775U (en) Mis-insertion preventing connector and connector system
CN218415217U (en) Secondary locking high-voltage connector
CN207967629U (en) Assemble type electric power cabinet
CN206864698U (en) A kind of plug of power connector of four cores rectangle fast insert-pull
CN215589028U (en) Extraction tool and communication equipment
CN208096667U (en) A kind of folding handle
CN209487876U (en) A kind of connector side surface locking structure
CN208923388U (en) A kind of adapter
CN112790509A (en) Combined office table with file cabinet
CN212186328U (en) Multifunctional tissue box
CN213126710U (en) Remote controller convenient to dismantle and overhaul
CN219069770U (en) Safety cabinet combined structure with anti-theft function
CN201078128Y (en) Electronic lock panel slip cover locking mechanism

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
GR01 Patent grant
GR01 Patent grant