CN220201372U - Portable cable well lid opening tool - Google Patents
Portable cable well lid opening tool Download PDFInfo
- Publication number
- CN220201372U CN220201372U CN202321414324.0U CN202321414324U CN220201372U CN 220201372 U CN220201372 U CN 220201372U CN 202321414324 U CN202321414324 U CN 202321414324U CN 220201372 U CN220201372 U CN 220201372U
- Authority
- CN
- China
- Prior art keywords
- cable well
- frame
- well lid
- hollow pipe
- hollow tube
- 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
- 238000009434 installation Methods 0.000 claims description 33
- 230000008093 supporting effect Effects 0.000 claims description 30
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Abstract
The utility model relates to the technical field of opening of cable well covers, in particular to a portable cable well cover opening tool which comprises a hollow pipe, a frame, wheels, a cover lifting hook and a connecting device, wherein the hollow pipe penetrates through the frame in a main body and can be connected with the frame by the connecting device for position movement to form a main part of the cable well cover opening tool, the effect of fixation is achieved, the wheels are fixed at wheel fixing holes of the frame through the connecting device, and the lifting end on the hollow pipe is fixedly installed with the cover lifting hook by the connecting device, so that the portable movable cable well cover opening tool is formed. This application is through fixed male hollow pipe of connecting device, the atress point of control lever to be applicable to the cable well lid of different thickness weight, reduce the influence that the operation and maintenance work in-process caused because the old of cable well lid or the abominable of weather environment, strengthened constructor and opened the security and the work efficiency of cable well lid in-process.
Description
Technical Field
The utility model relates to the technical field of opening of cable well covers, in particular to a portable cable well cover opening tool.
Background
With the rapid development of town, the original overhead lines are gradually replaced by underground cables. Therefore, if the cable fails, the cable manhole cover needs to be opened, the cable manhole cover is drilled underground for inspection and maintenance, and a plurality of maintenance personnel are required to lift the cable manhole cover together when the cable manhole cover is opened conventionally, however, part of the manhole cover is old, the cover body and the manhole ring are fixed into a whole, and the cable manhole cover is difficult to open by using a common manhole cover opening tool. If the rainy season or bad weather is met, a plurality of maintenance personnel work together and are difficult to open, so that labor is very consumed, the working efficiency is influenced, and meanwhile, certain risk hidden danger is brought. The cable well lid opening device has the advantages of reasonable structure, simplicity and convenience in operation and good use effect.
Chinese patent publication No.: CN103663306a discloses a cable well lid lifting device, comprising a bracket and a lever, characterized in that the top of the bracket is provided with a rotating mechanism capable of rotating horizontally and vertically, the rotating mechanism mainly comprises two parts, the upper part of the rotating mechanism is a sleeve pipe which can be inserted into the lever and is provided with a hinge, and the lower part of the rotating mechanism is a base which is provided with a vertical rotating shaft and can be connected to the bracket. The rotating shaft of the base is also provided with a hinge, and the hinge can be mutually hinged with the hinge on the sleeve.
Current cable well lid opening tools tend to be inconvenient to move when subjected to the influence of bulk shapes during use.
Disclosure of Invention
Therefore, the utility model provides a portable cable well lid opening tool which is used for solving the problem that labor is consumed in the construction process to influence the working efficiency when a cable overhauls severe weather in the prior art.
In order to achieve the above object, the present utility model provides a portable manhole cover opening tool, comprising,
the frame is used as a main body framework of the well lid opening tool and is used for fixing and connecting other parts;
a hollow tube disposed on the frame and capable of sliding, the hollow tube including a handle end and a lifting end;
the cover lifting hook is arranged at the lifting end of the hollow pipe and can extend into the well cover to be opened;
and a connecting device as a connecting and fixing part of the hollow tube and the frame for fixing the hollow tube to the frame.
Further, the frame comprises a frame body, wherein the frame body comprises,
the hollow pipe installation component is used for installing the hollow pipe and limiting the hollow pipe;
the vertical support bracket is arranged at the bottom of the hollow pipe installation component and the hollow pipe installation component is in a vertical state;
the vertical support bracket and the horizontal support bracket which is perpendicular to the bottom of the vertical support bracket in the horizontal direction are used as a main body of a stabilizing component of the well lid opening tool together;
a first supporting shaft and a second supporting shaft are arranged between the vertical supporting bracket and the hollow pipe installation component, and the first supporting shaft is arranged in an inverted triangle state with the second supporting shaft and the hollow pipe installation component.
And a third supporting shaft and a fourth supporting shaft are arranged between the horizontal supporting bracket and the vertical supporting bracket, and the third supporting shaft, the fourth supporting shaft and the vertical supporting bracket are arranged in a regular triangle state.
Further, a plurality of limiting components used for being connected and fixed with the frame are arranged on the hollow pipe, and when different limiting components are selected to fix the hollow pipe with the hollow pipe installation component, the distances from the hollow pipe installation component to the handle end are different.
Further, the connecting device is a bolt, the hollow pipe installation component is provided with an installation hole, and the limiting component is a bolt hole matched with the connecting device.
Further, the horizontal support bracket is provided with a positioning fixing hole for installing a support component for providing a fulcrum for the frame.
Further, the portable cable well cover opening tool also comprises,
and the moving device is connected with the horizontal support bracket through the positioning fixing hole and provides a supporting part for the frame.
Further, the cover lifting hook is detachably connected with the lifting end, the top of the cover lifting hook is of a T-shaped structure, and the T-shaped structure can extend into a cable well lid to be opened.
Further, the cover lifting hook is connected with the lifting end through a hinged rotating structure, and the joint of the cover lifting hook and the lifting end can rotate.
Further, the connecting device is a clamping groove arranged in the hollow tube mounting component, the limiting component is a protrusion matched with the connecting device, and the protrusion can be clamped with the clamping groove by rotating the hollow tube.
Further, the positioning fixing hole is connected with the stable base through the connecting device and is used for providing a base part for the portable cable well lid opening tool to stably work.
Compared with the prior art, the utility model has the advantages of less number of main body structural parts, simple installation and easy operation. And through assembling the spacing part of frame and hollow tube different distance, different connected mode in spacing part and the hollow tube installation component has overcome before because various factors cause a large amount of constructors construction difficulty, and the operating time is long and need spend the problem of many efforts, has realized making the work of opening of cable well lid reduce the manpower and has spent, and efficiency improves to practitioner's risk hidden danger has been reduced. The cable well cover can be applied to overhauling old and complex environment cable well covers; the cable maintenance work of individual staff is realized. The resource waste caused by the work of a plurality of maintenance personnel together in rainy season or bad weather is effectively overcome; the utility model realizes safe operation, quick assembly and disassembly, simple structure and low production cost.
In particular, a plurality of limiting components are arranged, so that more working conditions can be selected according to actual conditions in the process of opening the well lid, and for heavier well lids, the hollow pipe and the hollow pipe installation component are mutually fixed through the limiting components far away from the handle end, and a power arm is enlarged, so that the well lid is more labor-saving to open; for lighter well lid, through the spacing part that is nearer to the handle end with hollow tube and hollow tube installation component mutually fixed for handle end removal stroke is littleer when opening the well lid. And selecting limiting parts at different positions according to different well lid characteristics as points fixed with the hollow pipe installation part, so as to meet the differentiation treatment when the well lids with different weights are opened.
Further, through setting up the T type structure that the lid was colluded the top, will play the lid and collude T type top and arrange the well lid inside through the hole of waiting to open the well lid to rotatory lid is colluded and the well lid forms the cross stable structure, makes things convenient for the staff to remove the well lid through the cable well lid opening tool of this example, and makes the lid of playing to collude difficult breaking away from the well lid at the removal in-process T type structure, lets the working property of instrument have abundant guarantee, has reduced the danger in the working process.
Drawings
The embodiment of fig. 1 is a schematic structural diagram of a portable cable manhole cover opener;
FIG. 2 is a perspective view of the frame of the embodiment;
figure 3 is a perspective view of a hollow tube in the embodiment of figure 3.
Detailed Description
In order that the objects and advantages of the utility model will become more apparent, the utility model will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.
It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1-3, fig. 1 is a schematic structural diagram of a portable cable manhole cover opening tool according to an embodiment; FIG. 2 is a perspective view of a vehicle frame according to an embodiment; fig. 3 is a perspective view of a hollow tube in an embodiment.
The embodiment provides a portable cable well lid opening tool, which comprises,
a frame 1 as a main body frame of the manhole cover opening tool for fixing and connecting other components;
a hollow tube 2 provided on the frame 1 and capable of sliding, the hollow tube 2 including a handle end 21 and a lifting end 22;
a cover lifting hook 3, which is arranged at the lifting end 22 of the hollow pipe 2, wherein the cover lifting hook 3 can extend into a well cover to be opened;
and a connecting device 4 as a connecting and fixing member for the hollow tube 2 and the frame 1 for fixing the hollow tube 2 to the frame 1.
The frame, the hollow tube and the cover lifting hook are assembled through the connecting device, so that the installation is convenient, and the structure is simple.
In particular, the frame 1 comprises,
a hollow tube mounting member 11 for mounting the hollow tube 2 and limiting the hollow tube 2;
a vertical support bracket 12 which is provided at the bottom of the hollow tube installation member 11, and in which the hollow tube installation member 11 is in a vertical state;
the vertical support bracket 12 and the horizontal support bracket 13 which is perpendicular to the bottom of the vertical support bracket 12 in the horizontal direction are used as a main body of a stabilizing component of the well lid opening tool together;
a first support shaft 16 and a second support shaft 17 are arranged between the vertical support bracket 12 and the hollow pipe installation component 11, and the first support shaft 16, the second support shaft 17 and the hollow pipe installation component are arranged in an inverted triangle state.
A third support shaft 14 and a fourth support shaft 15 are arranged between the horizontal support bracket 13 and the vertical support bracket 12, and the third support shaft 14, the fourth support shaft 15 and the vertical support bracket 12 are arranged in a right triangle state.
The supporting effect is strengthened through setting up the back shaft for portable cable well lid opening tool in this embodiment can pry the heavy well lid of cross, and even large-scale cement well lid, simultaneously, two liang of triangle sets up the stability that has further strengthened overall structure.
Specifically, the hollow tube 2 is provided with a plurality of limiting members 23 for connecting and fixing with the frame 1, and when different limiting members 23 are selected to fix the hollow tube 2 with the hollow tube mounting member 11, the distances from the hollow tube mounting member 11 to the handle end 21 are different.
Through setting up a plurality of spacing parts and making the in-process that the well lid was opened can carry out the selection of more working condition according to actual conditions, to heavier well lid, through the spacing parts that is far away from the handle end with hollow tube and hollow tube installation component mutual fixation, increase the power arm for well lid is opened more laborsaving; for lighter well lid, through the spacing part that is nearer to the handle end with hollow tube and hollow tube installation component mutually fixed for handle end removal stroke is littleer when opening the well lid. And selecting limiting parts at different positions according to different well lid characteristics as points fixed with the hollow pipe installation part, so as to meet the differentiation treatment when the well lids with different weights are opened.
Specifically, the connecting device 4 is a bolt, the hollow tube mounting member 11 is provided with a mounting hole 18, and the limiting member 23 is a bolt hole 23 matched with the connecting device 4.
The bolt holes and the bolts are used as limiting components and connecting devices, so that the installation is convenient.
Specifically, the horizontal support bracket 13 is provided with a positioning and fixing hole 19 for mounting a support member that provides a fulcrum for the frame 1.
The positioning fixing holes on the supporting component and the horizontal supporting bracket are assembled through the bolts, so that the stability of the portable cable well lid opening tool in the embodiment is enhanced, and the safety performance in the working process is improved.
Specifically, the portable cable well lid opening tool further comprises a moving device 5, which is connected with the horizontal support bracket 13 through the positioning fixing hole 19, and provides a fulcrum for the support component of the frame 1.
The positioning fixing holes on the wheels and the horizontal support bracket are assembled through the bolts, so that the well lid is opened in the process according to different positions of the well lid to be opened, the portable cable well lid opening tool in the embodiment is moved more lightly and conveniently, the working intensity of workers is reduced, and the sensitivity and convenience of the well lid opening tool are enhanced.
Specifically, the cover lifting hook 3 is detachably connected with the lifting end 22, the top of the cover lifting hook 3 presents a T-shaped structure, and the T-shaped structure can extend into a cable well lid to be opened.
Through setting up the T type structure that the lid colluded the top, will play the lid and collude T type top and arrange the well lid inside through the hole of waiting to open the well lid to rotatory play the lid and collude and form cross stable structure with the well lid, make things convenient for the staff to remove the well lid through the cable well lid opening tool of this example, and make to play the lid and collude difficult breaking away from the well lid at the removal in-process T type structure, let the working property of instrument have abundant guarantee, reduced the danger in the course of working.
Specifically, the cover lifting hook 3 and the lifting end 22 are connected through a hinged rotation structure, and the joint of the cover lifting hook 3 and the lifting end 22 can rotate.
Through setting up the connected mode that lifts by force and colludes and cavity pipe hoisting end for articulated revolution mechanic, can make the cable well lid opening tool in this example can realize the rotation of multi-angle when stretching into the well lid hole of waiting to open, increase the comprehensiveness of instrument working range.
As another embodiment of the present utility model, there is provided,
specifically, the connecting device is a clamping groove arranged in the hollow tube mounting component, the limiting component is a protrusion matched with the connecting device, and the protrusion and the clamping groove can be clamped by rotating the hollow tube.
The protrusion of the hollow pipe limiting part and the clamping groove in the hollow pipe installation part are clamped in a rotating mode during installation, so that a worker can install the portable cable well lid opening tool in the embodiment more conveniently and more easily.
The well lid is opened to the rotation, and the frame position is adjusted, connects to get up to cover and collude with the jack-up end, drives the well lid perk through pressing the handle end, when the frame bottom is provided with mobile device, removes the well lid to the assigned position through dragging the handle end, accomplishes the opening of well lid.
The main body of the vehicle frame is structurally provided with the vehicle frame, the hollow tube, the cover lifting hook and the moving device are assembled through the connecting device, the structure is simple, the operation is convenient, and the vehicle frame is easy to install and use by workers.
The hollow pipe of each component is provided with a plurality of limiting components, the most labor-saving supporting points are selected according to the difference of the gravity of the well cover, the resource waste of constructors is saved, the connecting mode between the limiting components and the hollow pipe installing components is divided into bolt connection and buckle connection, and when the well cover with heavy thickness is hooked up and the well cover is seriously old, the whole portable cable well cover opening tool is more firm by installing the limiting components through bolts; when the light well lid is hooked, the well lid is installed in a buckle type connection mode, so that the operation is simpler and more convenient, and the working efficiency of constructors is improved. The hollow pipe can be cylindrical when the working difficulty of the portable cable well lid opening tool is small, so that the portable cable well lid opening tool is convenient to produce and easy to assemble with a frame; when the old well lid is difficult to open, the hollow pipe is cuboid, production is relatively easy, and after the hollow pipe is assembled with the frame, resistance is stronger, so that safety and working efficiency of a constructor in the process of opening the cable well lid are enhanced.
The support brackets below the hollow pipe installation part of the frame are inverted T-shaped, and each of the four support shafts and the support shaft are in a triangular structure, so that the stability of the whole device is enhanced, and stronger bearing force can be achieved.
The fixed part can be installed at the positioning and fixing hole on the support bracket, so that the frame is provided with a stable pivot, the frame is not easy to shake during working, and the safety and stability of the working performance are improved. The wheels can be installed at the positioning and fixing holes to move, so that the device is convenient for workers to move, the sensitivity during operation is improved, and the working efficiency is improved.
Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will be within the scope of the present utility model.
The foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the utility model; various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A portable cable well lid opening tool is characterized by comprising,
the frame is used as a main body framework of the well lid opening tool and is used for fixing and connecting other parts;
a hollow tube disposed on the frame and capable of sliding, the hollow tube including a handle end and a lifting end;
the cover lifting hook is arranged at the lifting end of the hollow pipe and can extend into the well cover to be opened;
and a connecting device as a connecting and fixing part of the hollow tube and the frame for fixing the hollow tube to the frame.
2. The portable cable well cover opener of claim 1, wherein,
the frame of the vehicle may comprise a frame,
the hollow pipe installation component is used for installing the hollow pipe and limiting the hollow pipe;
the vertical support bracket is arranged at the bottom of the hollow pipe installation component and the hollow pipe installation component is in a vertical state;
the vertical support bracket and the horizontal support bracket which is perpendicular to the bottom of the vertical support bracket in the horizontal direction are used as a main body of a stabilizing component of the well lid opening tool together;
a first supporting shaft and a second supporting shaft are arranged between the vertical supporting bracket and the hollow pipe installation part, and the first supporting shaft, the second supporting shaft and the hollow pipe installation part are arranged in an inverted triangle state;
and a third supporting shaft and a fourth supporting shaft are arranged between the horizontal supporting bracket and the vertical supporting bracket, and the third supporting shaft, the fourth supporting shaft and the vertical supporting bracket are arranged in a regular triangle state.
3. The portable cable well lid opening tool according to claim 2, wherein a plurality of limiting members for connecting and fixing with the frame are arranged on the hollow tube, and when different limiting members are selected to fix the hollow tube with the hollow tube mounting member, distances from the hollow tube mounting member to the handle end are different.
4. The portable cable well cover opener of claim 3, wherein,
the connecting device is a bolt, the hollow pipe installation component is provided with an installation hole, and the limiting component is a bolt hole matched with the connecting device.
5. The portable cable manhole cover opener of claim 2, wherein the horizontal support bracket is provided with a positioning and fixing hole for installing a support member for providing a fulcrum for the frame.
6. The portable cable well cover opener of claim 5, further comprising,
and the moving device is connected with the horizontal support bracket through the positioning fixing hole and provides a supporting part for the frame.
7. The portable cable well cover opener of claim 1, wherein,
the cover lifting hook is detachably connected with the lifting end, the top of the cover lifting hook is of a T-shaped structure, and the T-shaped structure can extend into a cable well lid to be opened.
8. The portable cable well cover opener of claim 1, wherein,
the cover lifting hook is connected with the lifting end through a hinged rotating structure, and the joint of the cover lifting hook and the lifting end can rotate.
9. The portable cable well cover opener of claim 3, wherein,
the connecting device is a clamping groove arranged in the hollow tube mounting part, the limiting part is a protrusion matched with the connecting device, and the protrusion can be clamped with the clamping groove by rotating the hollow tube.
10. The portable cable well cover opener of claim 5, wherein said positioning and securing holes are connected to said stabilizing base via said connecting means for providing a stable working foundation for said portable cable well cover opener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321414324.0U CN220201372U (en) | 2023-06-06 | 2023-06-06 | Portable cable well lid opening tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321414324.0U CN220201372U (en) | 2023-06-06 | 2023-06-06 | Portable cable well lid opening tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220201372U true CN220201372U (en) | 2023-12-19 |
Family
ID=89154954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321414324.0U Active CN220201372U (en) | 2023-06-06 | 2023-06-06 | Portable cable well lid opening tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220201372U (en) |
-
2023
- 2023-06-06 CN CN202321414324.0U patent/CN220201372U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110842870B (en) | Platform for replacing operation of silicon gel of converter transformer respirator | |
| JP2012051732A (en) | Assembling auxiliary lifting unit on mobile crane | |
| CN108657969B (en) | Top column type hoisting machine | |
| CN105252549A (en) | Suspension telescopic cylinder and mechanical arm fast installing and uninstalling system under nuclear radiation environment | |
| CN104638553A (en) | 180-degree rotary reinforced concrete pole lazy arm | |
| CN220201372U (en) | Portable cable well lid opening tool | |
| CN111591904A (en) | Support arrangement that power equipment lifted by crane | |
| CN208361748U (en) | A kind of fulcrum type hoisting machine | |
| CN110562861A (en) | lifting maintenance device and wind driven generator | |
| CN112854772B (en) | Building assembly type wallboard mounting machine | |
| CN218386440U (en) | Cable lifting strutting arrangement for engineering | |
| CN105008635A (en) | Working device with stationary mast and rotary head | |
| US11231017B2 (en) | System and method for the service and exchange of a yaw bearing for a machine head of a wind turbine | |
| CN210150629U (en) | Multipurpose crane for disassembling and assembling street lamp | |
| CN112499486A (en) | Portable transformer lifter and operation method thereof | |
| KR200442557Y1 (en) | Jig for assembling engine and transmission | |
| CN219449124U (en) | Small-size component lifting device | |
| CN201146337Y (en) | Multifunctional hanging tool | |
| CN210710455U (en) | Lifting maintenance device and wind driven generator | |
| CN217268674U (en) | Assembled heavy load construction platform | |
| CN220432183U (en) | Loading and unloading device for jaw plate frame of hydraulic and pneumatic tongs | |
| CN220395901U (en) | Land wind driven generator bearing system | |
| CN211004262U (en) | Manhole cover rotating suspension arm | |
| CN211920803U (en) | Portable maintenance lifting platform | |
| CN214006488U (en) | Take safety protection function's maintenance platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |