CN111988026B - Non-contact proximity switch device - Google Patents
Non-contact proximity switch device Download PDFInfo
- Publication number
- CN111988026B CN111988026B CN202010906773.1A CN202010906773A CN111988026B CN 111988026 B CN111988026 B CN 111988026B CN 202010906773 A CN202010906773 A CN 202010906773A CN 111988026 B CN111988026 B CN 111988026B
- Authority
- CN
- China
- Prior art keywords
- magnet
- wire
- box
- proximity switch
- movable
- 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
- 238000005286 illumination Methods 0.000 claims description 2
- 230000005291 magnetic effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/945—Proximity switches
- H03K17/95—Proximity switches using a magnetic detector
- H03K17/9517—Proximity switches using a magnetic detector using galvanomagnetic devices
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The invention discloses a non-contact proximity switch device which comprises a movable box, a wire box and a lamp groove, wherein two sliding rods are symmetrically arranged on the inner side of the movable box, a magnet is arranged between the two sliding rods in a matched mode, two sliding grooves are symmetrically formed in the inner side of the magnet, the magnet is connected with the sliding rods in a sliding mode through the sliding grooves, a first electromagnet is arranged at the upper end of the inner side of the wire box, movable grooves are formed in two ends of the inner side of the wire box, a rotating shaft is arranged between the two movable grooves in a matched mode, a power connection plate is fixedly arranged on the outer side of the rotating shaft, an ultraviolet lamp is arranged on the outer side of the power connection plate, an illuminating lamp is arranged on the rear side of the power connection plate, an anode magnet is fixedly arranged on the upper end of the power connection plate, a second electromagnet is arranged on the lower end of the lamp groove, a magnetic device is arranged, the switch is started through the magnetic device, the trouble of manual switch is avoided, and the non-contact proximity switch device is simple to operate and convenient to use and high in practicability.
Description
Technical Field
The invention belongs to the field of switching devices, and particularly relates to a non-contact proximity switching device.
Background
The proximity switch is a position switch which can be operated without being in mechanical direct contact with a moving part, when the sensing surface of the object proximity switch reaches the action distance, the switch can be operated without mechanical contact and any pressure, so that a direct-current electric appliance is driven or a control instruction is provided for a computer device, the proximity switch is a switch type sensor which has the characteristics of a travel switch and a micro switch, has the sensing performance, is reliable in action, stable in performance, quick in frequency response, long in application life, strong in anti-interference capability and the like, has the characteristics of water resistance, shock resistance, corrosion resistance and the like, however, most of the traditional sensing switch is not long in service time, and the traditional sensing switch is very high in quality and very expensive because the traditional sensing switch is very low in cost performance, and the traditional sensing switch is single in most functions and not strong in practicability and the like, so the non-contact type proximity switch device is provided for solving the problems.
Disclosure of Invention
The invention provides a non-contact proximity switch device, which aims to solve the problems that the traditional inductive switch is not long in service time, and the traditional inductive switch is single in function and not strong in practicability due to the fact that the existing sensor device is not good in quality and high in cost.
The invention discloses a non-contact proximity switch device which comprises a movable box, a wire box and a lamp groove, wherein two sliding rods are symmetrically arranged on the inner side of the movable box, a magnet is arranged between the two sliding rods in a matched mode, two sliding grooves are symmetrically formed in the inner side of the magnet, the magnet is in sliding connection with the sliding rods through the sliding grooves, the wire box is arranged at the lower end of the movable box, a first electromagnet is arranged at the upper end of the inner side of the wire box, movable grooves are formed in two ends of the inner side of the wire box, the lamp groove is formed between the two movable grooves, a rotating shaft is arranged between the two movable grooves in a matched mode, a power connection plate is fixedly arranged on the outer side of the rotating shaft, an ultraviolet lamp is arranged on the outer side of the power connection plate, an illuminating lamp is arranged on the rear side of the power connection plate, a positive magnet is fixedly arranged at the upper end of the power connection plate, and a second electromagnet is arranged at the lower end of the lamp groove.
Further, the both sides of activity box all are provided with the fixed block symmetrically, the fixed screw is installed to the inboard of fixed block, the fixed screw is connected with the fixed block cooperation.
Further, the both sides of the upper end of movable box all are provided with first connecting port, the power cord is installed to the inboard of first connecting port, the set screw is installed in the outside of power cord lower extreme, the power cord passes through set screw and movable box fixed connection.
Further, the both sides of activity box lower extreme all are provided with the second connector symmetrically, first electric wire is installed to the inboard of second connector, first electric wire passes through magnet and power cord electric connection.
Further, the movable box top is provided with the second electric wire with first electric wire parallel installation, the second electric wire passes through magnet and power cord electric connection.
Further, the first electromagnet is fixedly connected with the wire box through a set screw, and two ends of the first electromagnet are electrically connected with the first electric connection wire.
Further, the positive magnet is connected with a first electromagnet in a ferromagnetic mode, and a first connecting wire is installed between the first electromagnet and the power connecting plate in a matched mode through a movable groove.
Further, the second electromagnet is fixedly connected with the wire box through a set screw, and a second connecting wire is installed between the second electromagnet and the power connecting plate through a movable groove in a matched mode.
Further, a third connecting wire is installed at the lower end of the second connecting wire, and the third connecting wire is electrically connected with the second connecting wire.
Further, the outside of the movable box is provided with a reverse magnet in parallel, and the reverse magnet is magnetically connected with the magnet through the movable box.
Compared with the prior art, the invention has the beneficial effects that: the inside symmetry installation of movable box is provided with two slide bars, the cooperation is installed magnet between two slide bars, two spouts have been seted up to the inboard symmetry of magnet, magnet passes through spout and slide bar sliding connection, the line box installation sets up the lower extreme at the movable box, first electro-magnet is installed to the inboard upper end of line box, the inboard both ends of line box all are provided with the movable groove, the lamp groove is seted up between two movable grooves, the axis of rotation is installed in the cooperation between two movable grooves, the outside fixed mounting of axis of rotation has the power connecting plate, ultraviolet lamp is installed in the outside of power connecting plate, the light is installed to the rear side of power connecting plate, the upper end fixed mounting of power connecting plate has positive pole magnet, the lower extreme installation of lamp groove is provided with the second electro-magnet, switch on through magnet connection power cord and first electric wire or second electric wire, ultraviolet lamp or light are opened in the cooperation conversion of first electro-magnet or second electro-magnet, the operation flow is simple, whole automation need not manpower to control, the cost is low, the cost performance price ratio is higher.
Drawings
FIG. 1 is a perspective view of a top view of a non-contact proximity switch device of the present invention;
FIG. 2 is a schematic top view of a non-contact proximity switch device according to the present invention;
FIG. 3 is a perspective view of a side view of a non-contact proximity switch device of the present invention;
FIG. 4 is a schematic side view of a non-contact proximity switch device of the present invention;
FIG. 5 is a front view showing the movement of a non-contact proximity switch device magnet 11 and a counter magnet 26 according to the present invention;
fig. 6 is a schematic structural diagram of a front view of a non-contact proximity switch device of the present invention.
In the figure: 1. a movable box; 2. a wire box; 3. a lamp groove; 4. a fixed block; 5. a set screw; 6. a first connection port; 7. a power line; 8. a set screw; 9. a slide rod; 10. a chute; 11. a magnet; 12. a second connection port; 13. a first wire; 14. a second wire; 15. a first electromagnet; 16. a movable groove; 17. a rotating shaft; 18. a power supply connection board; 19. an ultraviolet lamp; 20. a lighting lamp; 21. a positive magnet; 22. a first connecting line; 23. a second electromagnet; 24. a second connecting line; 25. a third connecting line; 26. a reverse magnet.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. 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 invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, in the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1-6, a non-contact proximity switch device comprises a movable box 1, a wire box 2 and a lamp slot 3, wherein two slide rods 9 are symmetrically arranged on the inner side of the movable box 1, a magnet 11 is cooperatively arranged between the two slide rods 9, two slide grooves 10 are symmetrically arranged on the inner side of the magnet 11, the magnet 11 is in sliding connection with the slide rods 9 through the slide grooves 10, the wire box 2 is arranged at the lower end of the movable box 1, a first electromagnet 15 is arranged at the upper end of the inner side of the wire box 2, movable slots 16 are respectively arranged at two ends of the inner side of the wire box 2, the lamp slot 3 is arranged between the two movable slots 16, a rotating shaft 17 is cooperatively arranged between the two movable slots 16, a power connection plate 18 is fixedly arranged on the outer side of the rotating shaft 17, an ultraviolet lamp 19 is arranged on the outer side of the power connection plate 18, an illuminating lamp 20 is arranged on the rear side of the power connection plate 18, a positive magnet 21 is fixedly arranged at the upper end of the power connection plate 18, and a second electromagnet 23 is arranged at the lower end of the lamp slot 3.
According to the invention, the two sides of the movable box 1 are symmetrically provided with the fixed blocks 4, the inner sides of the fixed blocks 4 are provided with the fixed screws 5, the fixed screws 5 are connected with the fixed blocks 4 in a matched manner, and the fixing effect is better and more stable in a simple fixing mode.
In the invention, the two sides of the upper end of the movable box 1 are respectively provided with the first connecting port 6, the inner side of the first connecting port 6 is provided with the power line 7, the outer side of the lower end of the power line 7 is provided with the positioning screw 8, the power line 7 is fixedly connected with the movable box 1 through the positioning screw 8, and the power line 7 is fixed through the positioning screw 8, so that dangerous situations such as short circuit and the like caused by falling of the power line 7 are prevented.
In the invention, the two sides of the lower end of the movable box 1 are symmetrically provided with the second connecting ports 12, the inner sides of the second connecting ports 12 are provided with the first connecting wires 13, the first connecting wires 13 are electrically connected with the power wires 7 through the magnets 11, and the power wires 7 and the first connecting wires 13 are connected together through the magnets 11 to realize electrifying.
In the invention, a second electric wire 14 is arranged on the top of the movable box 1 in parallel with the first electric wire 13, the second electric wire 14 is electrically connected with the power wire 7 through the magnet 11, and the power wire 7 and the second electric wire 14 are connected together through the magnet 11 to realize power supply.
In the invention, the first electromagnet 15 is fixedly connected with the wire box 2 through the set screw 8, both ends of the first electromagnet 15 are electrically connected with the first electric wire 13, and the first electromagnet 15 is connected with the first electromagnet 15 through the first electric wire 13, so that the first electromagnet 15 has magnetism.
In the present invention, the positive magnet 21 is magnetically connected to the first electromagnet 15, and the first electromagnet 15 is cooperatively provided with a first connection wire 22 between the movable slot 16 and the power connection plate 18, so that the power input by the first connection wire 13 is transferred out through the first connection wire 22.
In the invention, the second electromagnet 23 is fixedly connected with the wire box 2 through the set screw 8, a second connecting wire 24 is arranged between the second electromagnet 23 and the power connecting plate 18 through the movable groove 16 in a matched mode, and power is transferred into the power connecting plate 18 through the second connecting wire 24.
In the present invention, a third connecting wire 25 is mounted at the lower end of the second connecting wire 24, and the third connecting wire 25 is electrically connected to the second electric wire 14, and transfers the electric power into the second electromagnet 23 through the second electric wire 14.
In the invention, the reverse magnet 26 is arranged in parallel on the outer side of the movable box 1, the reverse magnet 26 is magnetically connected with the magnet 11 through the movable box 1, and the change-over switch is realized through the mutual magnetic acting force of the magnet 11 and the reverse magnet 26, so that the switch is simple, convenient and practical.
The working principle of the invention is as follows: before use, the movable box 1 and the wire box 2 are firstly arranged at the upper end of a needed room door, then the reverse magnet 26 is arranged on the door below the movable box 1 in parallel, the reverse magnet 26 is separated from the magnet 11 through the door opening, the magnet 11 falls between the power wire 7 and the first connecting wire 13 through the sliding groove 10 and the sliding rod 9, electric power enters the first connecting wire 13 through the magnet 11, enters the first electromagnet 15 through the first connecting wire 13, the first electromagnet 15 starts to repel the positive magnet 21 through magnetism of entering in a store, at the moment, the electric power enters the power connecting plate 18 through the first connecting wire 22 and the movable groove 16 to lighten the lamp 20, at the moment, the lamp 20 is rotated to the outer side of the lamp groove 3 through the repulsive cooperation rotating shaft 17 of the first electromagnet 15 to realize illumination, the lamp 20 is turned off through the same rotation of the door closing, the ultraviolet lamp 19 is turned on to realize sterilization, and the whole flow is simple and convenient without manual operation.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The utility model provides a non-contact proximity switch device, includes movable box (1), line box (2) and light trough (3), its characterized in that: the utility model discloses a lamp, including movable box (1), lamp groove (3), including movable box (1), wire box (2), lamp groove (3) are provided with movable groove (16), two cooperation between two movable groove (16) is installed magnet (11), two spouts (10) have been seted up to the inboard symmetry of magnet (11), magnet (11) pass through spout (10) and slide bar (9) sliding connection, wire box (2) are installed and are set up the lower extreme at movable box (1), first electro-magnet (15) are installed to wire box (2) inboard upper end, wire box (2) inboard both ends all are provided with movable groove (16), two cooperation between movable groove (16) is installed axis of rotation (17), outside fixed mounting of axis of rotation (17) has power connecting plate (18), ultraviolet lamp (19) are installed in the outside of power connecting plate (18), illumination lamp (20) are installed to the rear side of power connecting plate (18), positive magnet (21) are installed to the upper end of power connecting plate (18), lamp groove (3) are installed electromagnet (23).
2. A non-contact proximity switch device according to claim 1, wherein: the two sides of the movable box (1) are symmetrically provided with fixed blocks (4), fixing screws (5) are arranged on the inner sides of the fixed blocks (4), and the fixing screws (5) are connected with the fixed blocks (4) in a matched mode.
3. A non-contact proximity switch device according to claim 1, wherein: the utility model discloses a portable electronic device, including movable box (1), power cord (7) are installed to the inboard of first interface (6), set screw (8) are installed in the outside of power cord (7) lower extreme, power cord (7) pass through set screw (8) and movable box (1) fixed connection.
4. A non-contact proximity switch device according to claim 1, wherein: the two sides of the lower end of the movable box (1) are symmetrically provided with second connectors (12), first connecting wires (13) are arranged on the inner sides of the second connectors (12), and the first connecting wires (13) are electrically connected with the power wires (7) through magnets (11).
5. A non-contact proximity switch device according to claim 1, wherein: the top of the movable box (1) is provided with a second electric connection wire (14) in parallel with the first electric connection wire (13), and the second electric connection wire (14) is electrically connected with the power line (7) through a magnet (11).
6. A non-contact proximity switch device according to claim 1, wherein: the first electromagnet (15) is fixedly connected with the wire box (2) through a set screw (8), and two ends of the first electromagnet (15) are electrically connected with the first connecting wire (13).
7. A non-contact proximity switch device according to claim 1, wherein: the positive magnet (21) is magnetically connected with the first electromagnet (15), and a first connecting wire (22) is installed between the first electromagnet (15) and the power connecting plate (18) in a matched mode through the movable groove (16).
8. A non-contact proximity switch device according to claim 1, wherein: the second electromagnet (23) is fixedly connected with the wire box (2) through a set screw (8), and a second connecting wire (24) is installed between the second electromagnet (23) and the power supply connecting plate (18) through a movable groove (16) in a matched mode.
9. A non-contact proximity switch apparatus according to claim 8, wherein: and a third connecting wire (25) is arranged at the lower end of the second connecting wire (24), and the third connecting wire (25) is electrically connected with the second connecting wire (14).
10. A non-contact proximity switch device according to claim 1, wherein: the outside of the movable box (1) is provided with a reverse magnet (26) in parallel, and the reverse magnet (26) is magnetically connected with the magnet (11) through the movable box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010906773.1A CN111988026B (en) | 2020-09-02 | 2020-09-02 | Non-contact proximity switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010906773.1A CN111988026B (en) | 2020-09-02 | 2020-09-02 | Non-contact proximity switch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111988026A CN111988026A (en) | 2020-11-24 |
| CN111988026B true CN111988026B (en) | 2024-03-22 |
Family
ID=73447957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010906773.1A Active CN111988026B (en) | 2020-09-02 | 2020-09-02 | Non-contact proximity switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111988026B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950719A (en) * | 1974-08-21 | 1976-04-13 | Maxwell Palmer M | Proximity actuated magnetic button-contactor assembly for switches |
| JP2000306475A (en) * | 1999-04-26 | 2000-11-02 | Secom Co Ltd | Proximity switch device |
| CN101127278A (en) * | 2006-08-18 | 2008-02-20 | 宁波奇乐电器实业总公司 | Automatic conversion switch electrical appliance |
| CN101419883A (en) * | 2008-11-28 | 2009-04-29 | 刘天保 | Intelligent operating mechanism for high voltage electric switch and application thereof |
| CN201514867U (en) * | 2009-09-23 | 2010-06-23 | 深圳市泰永科技股份有限公司 | Dual power automatic transfer switching device |
| CN103971959A (en) * | 2014-05-23 | 2014-08-06 | 佳一电气有限公司 | Electromagnetic operating device for control and protection switch |
| CN105161348A (en) * | 2015-10-20 | 2015-12-16 | 国网山东汶上县供电公司 | Hand-in-hand line centrally-positioned wire-outgoing switchgear grounding switch blocking device, system and method |
| CN111048357A (en) * | 2019-12-31 | 2020-04-21 | 大鲸娱乐设备(上海)有限公司 | Quick start and dormancy device based on magnetic switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008917B (en) * | 2014-06-17 | 2016-01-20 | 佛山市川东磁电股份有限公司 | A kind of magnetic approach switch |
-
2020
- 2020-09-02 CN CN202010906773.1A patent/CN111988026B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950719A (en) * | 1974-08-21 | 1976-04-13 | Maxwell Palmer M | Proximity actuated magnetic button-contactor assembly for switches |
| JP2000306475A (en) * | 1999-04-26 | 2000-11-02 | Secom Co Ltd | Proximity switch device |
| CN101127278A (en) * | 2006-08-18 | 2008-02-20 | 宁波奇乐电器实业总公司 | Automatic conversion switch electrical appliance |
| CN101419883A (en) * | 2008-11-28 | 2009-04-29 | 刘天保 | Intelligent operating mechanism for high voltage electric switch and application thereof |
| CN201514867U (en) * | 2009-09-23 | 2010-06-23 | 深圳市泰永科技股份有限公司 | Dual power automatic transfer switching device |
| CN103971959A (en) * | 2014-05-23 | 2014-08-06 | 佳一电气有限公司 | Electromagnetic operating device for control and protection switch |
| CN105161348A (en) * | 2015-10-20 | 2015-12-16 | 国网山东汶上县供电公司 | Hand-in-hand line centrally-positioned wire-outgoing switchgear grounding switch blocking device, system and method |
| CN111048357A (en) * | 2019-12-31 | 2020-04-21 | 大鲸娱乐设备(上海)有限公司 | Quick start and dormancy device based on magnetic switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111988026A (en) | 2020-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201435353Y (en) | Magnetic latching relay of rotary magnetic circuit structure | |
| CN208691393U (en) | A kind of calutron of control camera lifting | |
| CN111988026B (en) | Non-contact proximity switch device | |
| CN110706951A (en) | Intelligent integrated switch convenient to install and detach | |
| CN201413798Y (en) | Sealed magnetic control isolating switch | |
| CN103295848B (en) | A kind of indoor electric control module | |
| CN212546537U (en) | Curtain type magnetic suction door and intelligent letter box thereof | |
| CN204404015U (en) | A kind of lighting device | |
| CN2318696Y (en) | Electromagnet | |
| CN208782321U (en) | A kind of comprehensive distribution box mechanical locking device | |
| CN208621660U (en) | A kind of power electric meter case applied widely | |
| CN213075349U (en) | Intelligent mailbox | |
| CN221201020U (en) | Embedded intelligent time breaker | |
| CN215933425U (en) | Magnetic switch control device | |
| CN210443450U (en) | Intelligent integrated switch convenient to install and detach | |
| CN210129466U (en) | Solid-state relay with good anti-interference capability | |
| CN219497580U (en) | Formula intelligence switch is inhaled to magnetism | |
| CN219674139U (en) | Lighting system | |
| CN213278749U (en) | Energy-efficient processing cabinet body | |
| CN221352586U (en) | Contact assembly, pole unit, change-over switch and distribution equipment | |
| CN216016112U (en) | Inlet wire spring mechanism assembly convenient to installation | |
| CN208369552U (en) | The close switch of compact | |
| CN218446677U (en) | Electronic tag based on carrier communication technology | |
| CN221283026U (en) | Guide rail type multifunctional power supply capable of being installed rapidly | |
| CN212568899U (en) | Intelligent energy efficiency acquisition terminal |
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 |