CN215154355U - Vehicle-mounted navigator based on wireless connection of integrated circuit chip mobile phone - Google Patents

Vehicle-mounted navigator based on wireless connection of integrated circuit chip mobile phone Download PDF

Info

Publication number
CN215154355U
CN215154355U CN202121715724.6U CN202121715724U CN215154355U CN 215154355 U CN215154355 U CN 215154355U CN 202121715724 U CN202121715724 U CN 202121715724U CN 215154355 U CN215154355 U CN 215154355U
Authority
CN
China
Prior art keywords
block
display screen
fixed block
gear
connecting block
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
Application number
CN202121715724.6U
Other languages
Chinese (zh)
Inventor
全承太
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.)
Shenzhen Huagaojia Technology Co ltd
Original Assignee
Shenzhen Huagaojia 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 Shenzhen Huagaojia Technology Co ltd filed Critical Shenzhen Huagaojia Technology Co ltd
Priority to CN202121715724.6U priority Critical patent/CN215154355U/en
Application granted granted Critical
Publication of CN215154355U publication Critical patent/CN215154355U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

The utility model discloses a vehicle automatic navigator based on integrated circuit chip cell-phone wireless connection, including display screen and baffle, the baffle is located display screen one side and parallel arrangement, and the baffle is close to one side center department of display screen and installs hollow block, hollow block is close to one side center department of display screen and rotates there is the connecting block, and the display screen is close to one side center department of baffle and installs the fixed block, the fixed block is inside to be cavity, and is provided with the arc piece bottom the fixed block, arc piece top is passed the fixed block bottom and is slided inside the fixed block, and the inside coupling mechanism who is used for connecting the arc piece that is equipped with of fixed block, the connecting block is close to one side center department of display screen and sets up the first recess with fixed block looks adaptation, and the inside fixed establishment who is used for fixed arc piece that is equipped with of connecting block. The utility model discloses installation and dismantlement convenient and fast, and then improved the efficiency that this vehicle automatic navigator changed the display screen.

Description

Vehicle-mounted navigator based on wireless connection of integrated circuit chip mobile phone
Technical Field
The utility model relates to a vehicle automatic navigator technical field especially relates to a vehicle automatic navigator based on integrated circuit chip cell-phone wireless connection.
Background
A Car Navigation system (Car Navigation) is a driving assistance device of an instrument that can help a user accurately locate a current position, calculate a trip according to a given destination, and guide the user to travel to the destination through two modes, namely map display and voice prompt.
The current vehicle automatic navigator based on integrated circuit chip cell-phone wireless connection can not be to the rotatory function of display screen after the installation is accomplished for the user does not have the best visual angle of watching, and the current vehicle automatic navigator based on integrated circuit chip cell-phone wireless connection still is not convenient for install and dismantle the display screen in addition, leads to when needs maintenance or change display screen, and is extremely inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the vehicle automatic navigator based on integrated circuit chip cell-phone wireless connection who proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a vehicle-mounted navigator based on wireless connection of an integrated circuit chip mobile phone comprises a display screen and a baffle plate, wherein the baffle plate is positioned on one side of the display screen and arranged in parallel, and the center of one side of the baffle close to the display screen is provided with a hollow block, the center of one side of the hollow block close to the display screen is provided with a connecting block in a rotating way, and a fixed block is arranged at the center of one side of the display screen close to the baffle, the inside of the fixed block is hollow, and the bottom of the fixed block is provided with an arc-shaped block, the top of the arc-shaped block passes through the bottom of the fixed block and slides in the fixed block, a connecting mechanism for connecting the arc-shaped blocks is arranged inside the fixed block, a first groove matched with the fixed block is arranged at the center of one side of the connecting block close to the display screen, and the inside fixed establishment that is used for fixed arc piece that is equipped with of connecting block, the installation piece is installed to one side of baffle principle display screen, and the inside slewing mechanism who is used for rotating the connecting block that is equipped with of hollow block.
As a further scheme of the utility model, coupling mechanism includes first telescopic link, and the vertical top center department of installing in the fixed block of first telescopic link, the flexible end of first telescopic link is installed in arc piece top center department, and the flexible end surface of first telescopic link has cup jointed the spring.
As a further aspect of the present invention, the fixing mechanism includes a second groove and a pressing plate, and the second groove is provided inside the connecting block and communicates with the first groove, the second groove and the arc-shaped block are adapted to each other.
As a further scheme of the utility model, the clamp plate slides in the inside and level setting of second recess, and installs the lead screw bottom through the bearing housing, the connecting block bottom is rotated there is the carousel, and the lead screw end passes the connecting block bottom and installs in carousel top center department, lead screw and connecting block are inside to pass through threaded connection.
As a further scheme of the utility model, slewing mechanism includes first gear, and first gear rotates in the inside and vertical setting of hollow block, first gear one side fixedly connected with bull stick, and the bull stick top passes hollow block one side and installs in connecting block one side center department, the inside actuating mechanism who is used for driving first gear that is equipped with of hollow block.
As a further aspect of the utility model, actuating mechanism includes positive and negative motor, and positive and negative motor horizontal installation bottom in hollow block, the output shaft top of positive and negative motor is installed the second gear and is rotated inside hollow block, and first gear and the meshing of second gear.
As a further aspect of the utility model, actuating mechanism includes electric telescopic handle, and electric telescopic handle is vertical installs the bottom in hollow block, electric telescopic handle's output shaft top is installed the rack and is slided inside hollow block, and first gear and rack toothing.
The utility model has the advantages that:
1. the utility model discloses, when needs rotate the display screen, drive second gear revolve through positive and negative motor, second gear revolve can drive first gear revolve, first gear revolve can drive the bull stick rotation, the bull stick rotation can drive the connecting block rotation, the connecting block rotation can drive first recess rotation, first recess rotation can drive the fixed block rotation, the fixed block rotates and can drive the display screen rotation, thereby can rotate the display screen, it can not be rotatory to the display screen to have avoided present vehicle automatic navigator after the installation is accomplished, lead to making the user not have the condition emergence of the best viewing angle, and then improved this vehicle automatic navigator's result of use.
2. The utility model discloses, when needs are installed the display screen, only need aim at first recess to the fixed block and toward the inside removal of first recess to the fixed block, when the arc piece when with the contact of first recess, the arc piece can be toward the inside removal of fixed block and make the spring produce elasticity, when arc piece and second recess are located the coplanar, the elasticity that the spring produced can be gone into inside the second recess to the arc piece, thereby can fix the fixed block, further fix the display screen, when needs are dismantled the display screen, only need to rotate the carousel and drive the lead screw rotation, the lead screw rotates and can drive the clamp plate and remove, can impress the arc piece inside the fixed block, then can dismantle fixed block and display screen, and installation and dismantlement convenient and fast, and then improved the efficiency that this vehicle automatic navigator changed the display screen.
3. The utility model discloses, when needs rotate the display screen, it can drive the rack removal to rotate through electric telescopic handle, the rack removal can drive first gear revolve, first gear revolve can drive the bull stick and rotate, the bull stick rotates and can drive the connecting block and rotate, the connecting block rotates and can drive first recess and rotate, first recess rotates and can drive the fixed block and rotate, the fixed block rotates and can drive the display screen and rotate, thereby can rotate the display screen, it can not be rotatory to the display screen to have avoided present vehicle automatic navigator after the installation to accomplish, lead to making the user not have the condition emergence of the best viewing angle, and then improved this vehicle automatic navigator's result of use.
Drawings
Fig. 1 is a schematic diagram of a separated structure of a vehicle-mounted navigator based on wireless connection of an integrated circuit chip mobile phone according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a vehicle-mounted navigator based on wireless connection of an integrated circuit chip mobile phone according to embodiment 1 of the present invention;
fig. 3 is a cross-sectional view of a vehicle-mounted navigator based on wireless connection of an integrated circuit chip mobile phone according to embodiment 1 of the present invention;
fig. 4 is a cross-sectional view of an on-board navigator based on wireless connection of an integrated circuit chip mobile phone according to embodiment 2 of the present invention.
In the figure: 1. a display screen; 2. a baffle plate; 3. mounting blocks; 4. a hollow block; 5. connecting blocks; 6. a first groove; 7. a rotating rod; 8. a fixed block; 9. a spring; 10. an arc-shaped block; 11. a first telescopic rod; 12. a second groove; 13. pressing a plate; 14. a screw rod; 15. a first gear; 16. a second gear; 17. a positive and negative motor; 18. an electric telescopic rod; 19. a rack.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
Referring to fig. 1-3, a vehicle-mounted navigator based on wireless connection of an integrated circuit chip mobile phone comprises a display screen 1 and a baffle 2, wherein the baffle 2 is positioned on one side of the display screen 1 and arranged in parallel, a hollow block 4 is arranged at the position of the baffle 2 close to the center of one side of the display screen 1, a connecting block 5 is rotatably arranged at the position of the hollow block 4 close to the center of one side of the display screen 1, a fixed block 8 is arranged at the position of the display screen 1 close to the center of one side of the baffle 2, the inside of the fixed block 8 is hollow, an arc-shaped block 10 is arranged at the bottom of the fixed block 8, the top of the arc-shaped block 10 penetrates through the bottom of the fixed block 8 and slides inside the fixed block 8, a connecting mechanism for connecting the arc-shaped block 10 is arranged inside the fixed block 8, a first groove 6 matched with the fixed block 8 is arranged at the position of the connecting block 5 close to the center of one side of the display screen 1, and a fixing mechanism for fixing the arc-shaped block 10 is arranged inside the connecting block 5, the installation piece 3 is installed to 2 principle display screens 1's of baffle one side, and hollow block 4 inside is equipped with the slewing mechanism who is used for rotating connecting block 5.
In this embodiment, the connecting mechanism includes first telescopic link 11, and first telescopic link 11 is vertical to be installed in fixed block 8 top center department, and the flexible end of first telescopic link 11 is installed in 10 top center departments of arc, and the flexible end surface of first telescopic link 11 has cup jointed spring 9.
In this embodiment, the fixing mechanism includes a second groove 12 and a pressing plate 13, the second groove 12 is opened inside the connecting block 5 and communicated with the first groove 6, and the second groove 12 is matched with the arc-shaped block 10.
In this embodiment, the pressing plate 13 slides inside the second groove 12 and is horizontally arranged, the bottom of the pressing plate 13 is provided with the screw rod 14 through the bearing sleeve, the bottom of the connecting block 5 rotates to be provided with the turntable, the tail end of the screw rod 14 penetrates through the bottom of the connecting block 5 and is arranged at the center of the top of the turntable, and the screw rod 14 is connected with the inside of the connecting block 5 through threads.
In this embodiment, the rotating mechanism includes first gear 15, and first gear 15 rotates inside hollow block 4 and vertical setting, and first gear 15 one side fixedly connected with bull stick 7, and the bull stick 7 top passes hollow block 4 one side and installs in connecting block 5 one side center department, and hollow block 4 is inside to be equipped with the actuating mechanism who is used for driving first gear 15.
In this embodiment, the driving mechanism includes a positive and negative motor 17, and the positive and negative motor 17 is horizontally installed at the bottom inside the hollow block 4, and the second gear 16 is installed at the top end of the output shaft of the positive and negative motor 17 and rotates inside the hollow block 4, and the first gear 15 is meshed with the second gear 16.
The working principle of the embodiment is as follows: in practical use, when the display screen 1 needs to be rotated, the forward and reverse motor 17 drives the second gear 16 to rotate, the second gear 16 rotates to drive the first gear 15 to rotate, the first gear 15 rotates to drive the rotating rod 7 to rotate, the rotating rod 7 rotates to drive the connecting block 5 to rotate, the connecting block 5 rotates to drive the first groove 6 to rotate, the first groove 6 rotates to drive the fixing block 8 to rotate, the fixing block 8 rotates to drive the display screen 1 to rotate, so that the display screen 1 can be rotated, the situation that the current vehicle-mounted navigator cannot rotate the display screen 1 after the installation is completed, a user does not have the best viewing angle is avoided, the use effect of the vehicle-mounted navigator is improved, when the display screen 1 needs to be installed, the fixing block 8 only needs to be aligned with the first groove 6 and the fixing block 8 moves towards the inside of the first groove 6, when arc piece 10 when with the contact of first recess 6, arc piece 10 can be toward 8 inside removals of fixed block and make spring 9 produce elasticity, when arc piece 10 and second recess 12 are located the coplanar, the elasticity that spring 9 produced can be inside the arc piece 10 bullet income second recess 12, thereby can fix fixed block 8, further fix display screen 1, when needs are dismantled display screen 1, only need to rotate the carousel and drive lead screw 14 and rotate, lead screw 14 rotates and can drive clamp plate 13 and remove, can be inside the fixed block 8 of impressing arc piece 10, then can dismantle fixed block 8 and display screen 1, and installation and dismantlement convenient and fast, and then improved the efficiency that this vehicle automatic navigator changed display screen 1.
Example 2
Referring to fig. 1, 2 and 4, a vehicle-mounted navigator based on wireless connection of an integrated circuit chip mobile phone comprises a display screen 1 and a baffle 2, wherein the baffle 2 is positioned on one side of the display screen 1 and arranged in parallel, a hollow block 4 is arranged at the center of one side of the baffle 2 close to the display screen 1, a connecting block 5 is rotatably arranged at the center of one side of the hollow block 4 close to the display screen 1, a fixed block 8 is arranged at the center of one side of the display screen 1 close to the baffle 2, the inside of the fixed block 8 is hollow, an arc-shaped block 10 is arranged at the bottom of the fixed block 8, the top of the arc-shaped block 10 penetrates through the bottom of the fixed block 8 and slides inside the fixed block 8, a connecting mechanism for connecting the arc-shaped block 10 is arranged inside the fixed block 8, a first groove 6 matched with the fixed block 8 is arranged at the center of one side of the connecting block 5 close to the display screen 1, and a fixing mechanism for fixing the arc-shaped block 10 is arranged inside the connecting block 5, the installation piece 3 is installed to 2 principle display screens 1's of baffle one side, and hollow block 4 inside is equipped with the slewing mechanism who is used for rotating connecting block 5.
In this embodiment, the connecting mechanism includes first telescopic link 11, and first telescopic link 11 is vertical to be installed in fixed block 8 top center department, and the flexible end of first telescopic link 11 is installed in 10 top center departments of arc, and the flexible end surface of first telescopic link 11 has cup jointed spring 9.
In this embodiment, the fixing mechanism includes a second groove 12 and a pressing plate 13, the second groove 12 is opened inside the connecting block 5 and communicated with the first groove 6, and the second groove 12 is matched with the arc-shaped block 10.
In this embodiment, the pressing plate 13 slides inside the second groove 12 and is horizontally arranged, the bottom of the pressing plate 13 is provided with the screw rod 14 through the bearing sleeve, the bottom of the connecting block 5 rotates to be provided with the turntable, the tail end of the screw rod 14 penetrates through the bottom of the connecting block 5 and is arranged at the center of the top of the turntable, and the screw rod 14 is connected with the inside of the connecting block 5 through threads.
In this embodiment, the rotating mechanism includes first gear 15, and first gear 15 rotates inside hollow block 4 and vertical setting, and first gear 15 one side fixedly connected with bull stick 7, and the bull stick 7 top passes hollow block 4 one side and installs in connecting block 5 one side center department, and hollow block 4 is inside to be equipped with the actuating mechanism who is used for driving first gear 15.
In this embodiment, the driving mechanism includes an electric telescopic rod 18, and the electric telescopic rod 18 is vertically installed at the bottom inside the hollow block 4, and a rack 19 is installed at the top end of the output shaft of the electric telescopic rod 18 and slides inside the hollow block 4, and the first gear 15 and the rack 19 are engaged.
The working principle of the embodiment is as follows: in the time of in-service use, when needs rotate display screen 1, it can drive rack 19 through electric telescopic handle 18 rotation and remove, rack 19 removes and can drive first gear 15 and rotate, first gear 15 rotates and can drive bull stick 7 and rotate, bull stick 7 rotates and can drive connecting block 5 and rotate, connecting block 5 rotates and can drive first recess 6 and rotate, first recess 6 rotates and can drive fixed block 8 and rotate, fixed block 8 rotates and can drive display screen 1 and rotate, thereby can rotate display screen 1, it can not be rotatory to display screen 1 to have avoided present vehicle-mounted navigator to accomplish the installation after, lead to making the user not have the condition emergence of the best visual angle of watching, and then improved the result of use of this vehicle-mounted navigator.
Having shown and described the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof, and it is therefore intended that the embodiments be considered as exemplary and not limiting in any way, since the scope of the invention is defined by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein and are therefore not to be embraced therein by any reference numerals in the claims.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The utility model provides a vehicle automatic navigator based on integrated circuit chip cell-phone wireless connection, includes display screen (1) and baffle (2), its characterized in that, baffle (2) are located display screen (1) one side and parallel arrangement, and one side center department that baffle (2) are close to display screen (1) installs hollow block (4), one side center department that hollow block (4) are close to display screen (1) rotates there is connecting block (5), and one side center department that display screen (1) are close to baffle (2) installs fixed block (8), fixed block (8) are inside to be cavity, and fixed block (8) bottom is provided with arc piece (10), fixed block (8) bottom is passed at arc piece (10) top and slides inside fixed block (8), and fixed block (8) inside is equipped with the coupling mechanism who is used for connecting arc piece (10), one side center department that connecting block (5) are close to display screen (1) has seted up with fixed block (8) looks adaptation The novel connecting block structure comprises a first groove (6), a fixing mechanism used for fixing an arc-shaped block (10) is arranged inside a connecting block (5), an installation block (3) is installed on one side of a baffle (2) principle display screen (1), and a rotating mechanism used for rotating the connecting block (5) is arranged inside a hollow block (4).
2. The vehicle-mounted navigator based on wireless connection of an integrated circuit chip mobile phone according to claim 1, characterized in that the connection mechanism comprises a first telescopic rod (11), the first telescopic rod (11) is vertically installed at the center of the top in the fixed block (8), the telescopic end of the first telescopic rod (11) is installed at the center of the top of the arc-shaped block (10), and a spring (9) is sleeved on the surface of the telescopic end of the first telescopic rod (11).
3. The vehicle-mounted navigator based on wireless connection of an integrated circuit chip mobile phone according to claim 2 is characterized in that the fixing mechanism comprises a second groove (12) and a pressing plate (13), the second groove (12) is arranged inside the connecting block (5) and communicated with the first groove (6), and the second groove (12) is matched with the arc-shaped block (10).
4. The vehicle-mounted navigator based on wireless connection of an integrated circuit chip mobile phone according to claim 3, characterized in that the pressing plate (13) slides inside the second groove (12) and is horizontally arranged, a screw rod (14) is installed at the bottom of the pressing plate (13) through a bearing sleeve, a rotary disc is rotated at the bottom of the connecting block (5), the tail end of the screw rod (14) penetrates through the bottom of the connecting block (5) and is installed at the center of the top of the rotary disc, and the screw rod (14) and the connecting block (5) are internally connected through threads.
5. The vehicle-mounted navigator based on wireless connection of an integrated circuit chip mobile phone according to claim 4, characterized in that the rotating mechanism comprises a first gear (15), the first gear (15) rotates inside the hollow block (4) and is vertically arranged, a rotating rod (7) is fixedly connected to one side of the first gear (15), the top end of the rotating rod (7) penetrates through one side of the hollow block (4) and is installed at the center of one side of the connecting block (5), and a driving mechanism for driving the first gear (15) is arranged inside the hollow block (4).
6. The vehicle-mounted navigator based on the wireless connection of the integrated circuit chip mobile phone according to claim 5 is characterized in that the driving mechanism comprises a forward and reverse motor (17), the forward and reverse motor (17) is horizontally installed at the bottom inside the hollow block (4), a second gear (16) is installed at the top end of an output shaft of the forward and reverse motor (17) and rotates inside the hollow block (4), and the first gear (15) is meshed with the second gear (16).
7. The vehicle-mounted navigator based on the wireless connection of the integrated circuit chip mobile phone according to claim 5, characterized in that the driving mechanism comprises an electric telescopic rod (18), the electric telescopic rod (18) is vertically installed at the bottom inside the hollow block (4), a rack (19) is installed at the top end of an output shaft of the electric telescopic rod (18) and slides inside the hollow block (4), and the first gear (15) is meshed with the rack (19).
CN202121715724.6U 2021-07-27 2021-07-27 Vehicle-mounted navigator based on wireless connection of integrated circuit chip mobile phone Active CN215154355U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121715724.6U CN215154355U (en) 2021-07-27 2021-07-27 Vehicle-mounted navigator based on wireless connection of integrated circuit chip mobile phone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121715724.6U CN215154355U (en) 2021-07-27 2021-07-27 Vehicle-mounted navigator based on wireless connection of integrated circuit chip mobile phone

Publications (1)

Publication Number Publication Date
CN215154355U true CN215154355U (en) 2021-12-14

Family

ID=79404774

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121715724.6U Active CN215154355U (en) 2021-07-27 2021-07-27 Vehicle-mounted navigator based on wireless connection of integrated circuit chip mobile phone

Country Status (1)

Country Link
CN (1) CN215154355U (en)

Similar Documents

Publication Publication Date Title
CN202059484U (en) A vehicle-mounted holder camera possessing a radar velocity measurement function
CN204856650U (en) Rotatable hidden vehicle event data recorder
CN215154355U (en) Vehicle-mounted navigator based on wireless connection of integrated circuit chip mobile phone
CN211294261U (en) Real device of instructing of car automatic gearbox
CN213629774U (en) Adjustable traffic information display screen
CN116215712A (en) Support for vehicle
CN203511501U (en) Rotatable vehicle display screen
CN213292171U (en) Vehicle-mounted liquid crystal ceiling display
CN210941601U (en) Automobile data recorder and angle adjuster thereof
CN210515402U (en) Vehicle event data recorder of adjustable camera
CN211493665U (en) Motormeter dish package assembly
CN210770173U (en) Knob gear shifter with LCD small screen
CN201984751U (en) Adjustable liquid crystal display device
CN216212121U (en) Vehicle-mounted intelligent display screen
CN218378832U (en) Vehicle-mounted liquid crystal display screen
CN210852285U (en) Automobile data recorder with modular design
CN218505773U (en) Vehicle-mounted navigator convenient to installation is adjusted
CN204674497U (en) A kind of navigating instrument device of angle intelligent adjustment
CN205113145U (en) Novel car back vision appearance
CN214212305U (en) Automobile rear axle main reducer mounting hole drilling equipment
CN216942921U (en) Electric lifting compass for automobile
CN210428569U (en) Automobile data recorder and angle adjuster thereof
CN207955509U (en) A kind of multi-angle adjustment rearview mirror automobile data recorder
CN216684313U (en) Vehicle-mounted navigator stable in installation
CN214480746U (en) Wireless charging support for vehicle-mounted mobile phone

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant