CN112260168A - Cable testing bridge convenient to drainage and dampproofing processing carry out - Google Patents
Cable testing bridge convenient to drainage and dampproofing processing carry out Download PDFInfo
- Publication number
- CN112260168A CN112260168A CN202011011281.2A CN202011011281A CN112260168A CN 112260168 A CN112260168 A CN 112260168A CN 202011011281 A CN202011011281 A CN 202011011281A CN 112260168 A CN112260168 A CN 112260168A
- Authority
- CN
- China
- Prior art keywords
- fixedly arranged
- drainage
- plate
- air inlet
- moisture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0437—Channels
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/03—Cooling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
- H02G3/0412—Heat or fire protective means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
- H02G3/0418—Covers or lids; Their fastenings
Abstract
The invention discloses a cable bridge convenient for drainage and moisture-proof treatment, which comprises a bottom plate, wherein side plates are fixedly arranged on two sides of the bottom plate, inward curled edges are fixedly arranged at the upper ends of the side plates, a cover plate is fixedly arranged on the curled edges through first bolts, water collecting grooves are machined in the middle of the bottom plate, a plurality of drain pipes are fixedly embedded in the water collecting grooves at equal intervals, electromagnetic valves are arranged in the middle of the drain pipes, a plurality of water sensors are fixedly arranged on the water collecting grooves, an air inlet box is fixedly embedded in the side plate on one side, and an exhaust funnel is fixedly embedded in the side plate on the side far away from the air inlet box. Has the advantages that: can automated inspection crane span structure ponding condition and humiture in to can carry out drainage, heat dissipation and dehumidification automatically, degree of automation is high, thereby can the effectual life who prolongs crane span structure and cable.
Description
Technical Field
The invention relates to the field of bridges, in particular to a cable bridge convenient for drainage and moisture-proof treatment.
Background
The cable bridge frame is extensive in the trades such as oil, chemical industry, electric power, the light industry, telecommunication and uses, and the laying of mainly used overair power cable, control cable, lighting circuit, telecommunication cable can receive the erosion of rainwater at the cable bridge frame of outdoor use, easily leads to there being ponding in the crane span structure, and the ponding is soaked and can be shortened the life of cable bridge frame and cable, and the moisture that rainwater weather brought still can invade the life of further influence cable in the cable bridge frame simultaneously.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention aims to provide a cable bridge frame convenient for drainage and moisture-proof treatment so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a cable bridge convenient for drainage and moisture-proof treatment comprises a bottom plate, wherein side plates are fixedly arranged on two sides of the bottom plate, inward curled edges are fixedly arranged at the upper ends of the side plates, a cover plate is fixedly arranged on the curled edges through first bolts, a water collecting tank is machined in the middle of the bottom plate, a plurality of drain pipes are fixedly embedded in the water collecting tank at equal intervals, electromagnetic valves are installed in the middle of the drain pipes, a plurality of water sensors are fixedly arranged on the water collecting tank, an air inlet box is fixedly embedded in the side plate on one side, an exhaust funnel is fixedly embedded in the side plate far away from the air inlet box, an exhaust fan is fixedly arranged in the exhaust funnel through a connecting rod, a rectangular opening is formed in the upper end of the air inlet box, a net cage is arranged in the rectangular opening, a granular drying agent is arranged in the net cage, a rectangular frame is fixedly arranged at the upper end of the net cage, a sealing plate, one side curb plate upper end inner wall is fixed and is equipped with the treater, keeps away from treater one side curb plate upper end inner wall is fixed and is equipped with temperature sensor and humidity transducer, the water sensor temperature sensor humidity transducer the solenoid valve with the exhaust fan all with treater electric connection.
Furthermore, a plurality of thread cylinders are fixedly embedded in the turned edge, a plurality of first through holes matched with the thread cylinders are formed in the two sides of the cover plate, and the first bolt penetrates through the first through holes and is in threaded connection with the thread cylinders.
Furthermore, four corners of the sealing plate are provided with second through holes, four corners of the rectangular frame are provided with third through holes matched with the second through holes, the upper end of the air inlet box is provided with four threaded holes matched with the third through holes, and the threaded holes are respectively arranged at four corners close to the rectangular opening.
Furthermore, a protective net is fixedly arranged in the outer end of the exhaust funnel.
Furthermore, a waterproof breathable film is fixedly arranged at the outer end of the air inlet box.
Furthermore, a plurality of reinforcing convex ribs are fixedly arranged below the bottom plate.
Furthermore, the bottom plate, the side plate and the turned edge are of an integrally formed structure, and the water collecting tank is manufactured by a cold pressing process.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, by arranging the bottom plate, the side plate, the turned edge, the cover plate, the water collecting tank, the drain pipe, the electromagnetic valve, the exhaust fan, the granular drying agent, the processor, the temperature sensor and the humidity sensor, the accumulated water condition and the temperature and humidity in the bridge can be automatically detected, the drainage, the heat dissipation and the dehumidification can be automatically carried out, the automation degree is high, and the service lives of the bridge and the cable can be effectively prolonged.
(2) According to the invention, the threaded cylinder and the first through hole are arranged, so that the cover plate can be fixed through the first bolt, and the cover plate can be detached.
(3) According to the invention, the sealing plate and the rectangular frame can be fixed through the second bolt by arranging the second through hole, the third through hole and the threaded hole, and the sealing plate can be disassembled, so that the rectangular frame and the net cage can be taken out, and the granular drying agent in the net cage can be conveniently replaced.
(4) The fan blades of the exhaust fan can be protected by arranging the protective net.
(5) According to the invention, the waterproof breathable film is arranged, so that external rainwater can be prevented from entering the air inlet box.
(6) The reinforcing convex ribs are arranged, so that the mechanical strength of the bottom plate can be increased, and the bottom plate is not easy to deform or damage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a cable tray for facilitating drainage and moisture protection according to an embodiment of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a partial top view of a bottom plate of a cable tray for facilitating drainage and moisture protection according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an air induction box and a cage in a cable tray for facilitating drainage and moisture protection in accordance with an embodiment of the present invention;
FIG. 5 is a schematic diagram of an air box in a cable tray for facilitating drainage and moisture protection in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram of a cage in a cable tray for facilitating drainage and moisture protection in accordance with an embodiment of the present invention;
FIG. 7 is a schematic diagram of a rectangular frame of a cable tray for facilitating drainage and moisture resistance in accordance with an embodiment of the present invention;
fig. 8 is a schematic diagram of a sealing plate in a cable tray for facilitating drainage and moisture protection according to an embodiment of the present invention.
Reference numerals:
1. a base plate; 2. a side plate; 3. curling; 4. a first bolt; 5. a cover plate; 6. a water collection tank; 7. a drain pipe; 8. an electromagnetic valve; 9. a water immersion sensor; 10. an air intake box; 11. an exhaust funnel; 12. an exhaust fan; 13. a rectangular opening; 14. a net cage; 15. a granular desiccant; 16. a rectangular frame; 17. a second bolt; 18. a sealing plate; 19. a processor; 20. a temperature sensor; 21. a humidity sensor; 22. a threaded barrel; 23. a first perforation; 24. a second perforation; 25. a third perforation; 26. a threaded hole; 27. a protective net; 28. a waterproof breathable film; 29. and reinforcing the convex ribs.
Detailed Description
The invention is further described with reference to the following drawings and detailed description:
the first embodiment is as follows:
referring to fig. 1-8, a cable bridge rack convenient for drainage and moisture-proof treatment according to an embodiment of the present invention includes a bottom plate 1, side plates 2 are fixedly disposed on both sides of the bottom plate 1, inward turned edges 3 are fixedly disposed at upper ends of the side plates 2, a cover plate 5 is fixedly disposed on the turned edges 3 through first bolts 4, water collecting tanks 6 are respectively processed at middle portions of the bottom plate 1, a plurality of drain pipes 7 are fixedly embedded in the water collecting tanks 6 at equal intervals, electromagnetic valves 8 are respectively mounted at middle portions of the drain pipes 7, a plurality of water sensors 9 are fixedly disposed on the water collecting tanks 6, an air inlet box 10 is fixedly embedded in the side plate 2 at one side, an air exhaust tube 11 is fixedly embedded in the side plate 2 away from the air inlet box 10, an air exhaust fan 12 is fixedly disposed in the air exhaust tube 11 through a connecting rod, a rectangular opening 13 is disposed at an upper end of the air inlet box 10, a net cage 14, be equipped with granule type drier 15 in the box with a net 14, the fixed rectangle frame 16 that is equipped with in box with a net 14 upper end, be equipped with the closing plate 18 just through second bolt 17 is fixed on the rectangle mouth 13 the closing plate 18 is located on the rectangle frame 16, one side 2 upper end inner wall of curb plate is fixed and is equipped with treater 19, keeps away from treater 19 one side 2 upper end inner wall of curb plate is fixed and is equipped with temperature sensor 20 and humidity transducer 21, water sensor 9 temperature sensor 20 humidity transducer 21 solenoid valve 8 with exhaust fan 12 all with treater 19 electric connection.
By the aid of the scheme, accumulated water and temperature and humidity in the bridge can be automatically detected, water drainage, heat dissipation and dehumidification can be automatically performed, the automation degree is high, and accordingly the service lives of the bridge and the cable can be effectively prolonged.
Example two:
referring to fig. 2, 4, 5, 6, 7 and 8, for the turned edge 3, a plurality of threaded cylinders 22 are fixedly embedded in the turned edge 3, a plurality of first through holes 23 matched with the threaded cylinders 22 are formed in both sides of the cover plate 5, and the first bolts 4 penetrate through the first through holes 23 and are in threaded connection with the threaded cylinders 22; for the sealing plate 18, four corners of the sealing plate 18 are all provided with second through holes 24, four of the rectangular frame 16 are all provided with third through holes 25 matched with the second through holes 24, the upper end of the air inlet box 10 is provided with four threaded holes 26 matched with the third through holes 25, and the threaded holes 26 are respectively arranged at four corners close to the rectangular opening 13; for the exhaust funnel 11, a protective net 27 is fixedly arranged in the outer end of the exhaust funnel 11.
Through the scheme of the invention, the cover plate 5 can be fixed through the first bolt 4, the cover plate 5 can be detached, the sealing plate 18 and the rectangular frame 16 can be fixed through the second bolt 17, the sealing plate 18 can be detached, the rectangular frame 16 and the net cage 14 can be taken out, the granular drying agent 15 in the net cage 14 can be conveniently replaced, and the fan blades of the exhaust fan 12 can be protected by the protective net 27.
Example three:
referring to fig. 1 and 4, for the air intake box 10, a waterproof air permeable membrane 28 is fixedly arranged inside the outer end of the air intake box 10; for the bottom plate 1, a plurality of reinforcing ribs 29 are fixedly arranged below the bottom plate 1; for the bottom plate 1, the side plate 2 and the turned edge 3, the bottom plate 1, the side plate 2 and the turned edge 3 are of an integrally formed structure, and the water collecting tank 6 is manufactured by a cold pressing process.
Through the scheme of the invention, the waterproof breathable film 28 can prevent external rainwater from entering the air inlet box 10, and the reinforcing ribs 29 can increase the mechanical strength of the bottom plate 1, so that the bottom plate 1 is not easy to deform or damage.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the water sensor 9, the temperature sensor 20 and the humidity sensor 21 can automatically detect the water accumulation condition and the temperature and humidity in the bridge, and transmit the detected data to the processor 19, when the water sensor 9 detects water accumulation, the processor 19 can automatically open the electromagnetic valve 8 for draining water, when the value detected by the temperature sensor 20 is greater than a preset threshold value, the processor 19 can automatically open the exhaust fan 12 for radiating the heat inside the bridge, when the value detected by the humidity sensor 21 is greater than the preset threshold value, the processor 19 can automatically open the exhaust fan 12 for pumping out the humid air inside the bridge, and the external air enters the bridge after being dried by the particle type drying agent 15, so that the purpose of dehumidifying the air inside the bridge can be achieved, the automation degree is high, and the service lives of the bridge and the cable can be effectively prolonged, can fix apron 5 through first bolt 4, and make apron 5 can dismantle, and can fix closing plate 18 and rectangle frame 16 through second bolt 17, and can dismantle closing plate 18, make rectangle frame 16 and box with a net 14 can take out, thereby can conveniently change granule type drier 15 in box with a net 14, protection network 27 can protect the flabellum of exhaust fan 12, waterproof ventilated membrane 28 can prevent that outside rainwater from entering into in the inlet box 10, strengthen protruding muscle 29 and can increase the mechanical strength of bottom plate 1, make bottom plate 1 non-deformable or damage.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The cable bridge convenient for drainage and moisture-proof treatment is characterized by comprising a bottom plate (1), side plates (2) are fixedly arranged on two sides of the bottom plate (1), inward turned edges (3) are fixedly arranged at the upper ends of the side plates (2), cover plates (5) are fixedly arranged on the turned edges (3) through first bolts (4), water collecting troughs (6) are machined in the middle of the bottom plate (1), a plurality of drain pipes (7) are fixedly embedded in the water collecting troughs (6) at equal intervals, electromagnetic valves (8) are mounted in the middle of the drain pipes (7), a plurality of water immersion sensors (9) are fixedly arranged on the water collecting troughs (6), an air inlet box (10) is fixedly embedded in the side plate (2) on one side of the air inlet box (10), an exhaust funnel (11) is fixedly embedded in the side plate (2) on one side of the air inlet box (10), and an exhaust fan (12) is fixedly arranged in the exhaust funnel (11), a rectangular opening (13) is arranged at the upper end of the air inlet box (10), a net cage (14) is arranged in the rectangular opening (13), a granular drying agent (15) is arranged in the net cage (14), a rectangular frame (16) is fixedly arranged at the upper end of the net cage (14), a sealing plate (18) is fixedly arranged on the rectangular opening (13) through a second bolt (17), the sealing plate (18) is positioned on the rectangular frame (16), a processor (19) is fixedly arranged on the inner wall of the upper end of the side plate (2) at one side, a temperature sensor (20) and a humidity sensor (21) are fixedly arranged on the inner wall of the upper end of the side plate (2) at one side far away from the processor (19), the water sensor (9), the temperature sensor (20), the humidity sensor (21), the electromagnetic valve (8) and the exhaust fan (12) are electrically connected with the processor (19).
2. The cable bridge rack convenient for drainage and moisture-proof treatment as claimed in claim 1, wherein a plurality of threaded cylinders (22) are fixedly embedded in the turned edge (3), a plurality of first through holes (23) matched with the threaded cylinders (22) are formed in both sides of the cover plate (5), and the first bolt (4) penetrates through the first through hole (23) and is in threaded connection with the threaded cylinders (22).
3. The cable bridge rack convenient for drainage and moisture-proof treatment as claimed in claim 1, wherein four corners of the sealing plate (18) are provided with second through holes (24), four corners of the rectangular frame (16) are provided with third through holes (25) matched with the second through holes (24), the upper end of the air inlet box (10) is provided with four threaded holes (26) matched with the third through holes (25), and the threaded holes (26) are respectively arranged at four corners close to the rectangular opening (13).
4. The cable bridge rack convenient for drainage and moisture-proof treatment as claimed in claim 1, wherein a protective screen (27) is fixed in the outer end of the exhaust funnel (11).
5. The cable bridge rack for facilitating drainage and moisture-proof treatment of claim 1, wherein a waterproof and breathable film (28) is fixed inside the outer end of the air inlet box (10).
6. A cable tray for facilitating drainage and moisture protection as claimed in claim 1, wherein a plurality of reinforcing ribs (29) are fixed under the base plate (1).
7. The cable bridge rack convenient for drainage and moisture-proof treatment as claimed in claim 1, wherein the bottom plate (1), the side plate (2) and the turned edge (3) are of an integrally formed structure and the water collection tank (6) is made by cold pressing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011011281.2A CN112260168A (en) | 2020-09-23 | 2020-09-23 | Cable testing bridge convenient to drainage and dampproofing processing carry out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011011281.2A CN112260168A (en) | 2020-09-23 | 2020-09-23 | Cable testing bridge convenient to drainage and dampproofing processing carry out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112260168A true CN112260168A (en) | 2021-01-22 |
Family
ID=74231962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011011281.2A Pending CN112260168A (en) | 2020-09-23 | 2020-09-23 | Cable testing bridge convenient to drainage and dampproofing processing carry out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112260168A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004336971A (en) * | 2003-05-12 | 2004-11-25 | Calsonic Kansei Corp | Harness routing structure |
| CN104362562A (en) * | 2014-11-17 | 2015-02-18 | 重庆易初机械有限公司 | Communication pipe capable of monitoring water leaking state |
| CN106255368A (en) * | 2016-08-29 | 2016-12-21 | 四川行之智汇知识产权运营有限公司 | A kind of industrial control cabinet |
| CN107591749A (en) * | 2017-10-09 | 2018-01-16 | 江苏大浪电气集团有限公司 | A kind of sectional possesses the cable testing bridge of dustproof construction |
| CN207459621U (en) * | 2017-11-22 | 2018-06-05 | 江苏创汇电气科技有限公司 | Cable testing bridge drainage system |
| CN209119731U (en) * | 2018-12-20 | 2019-07-16 | 江苏合益电气制造有限公司 | A kind of cable testing bridge with moisture-proof function |
-
2020
- 2020-09-23 CN CN202011011281.2A patent/CN112260168A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004336971A (en) * | 2003-05-12 | 2004-11-25 | Calsonic Kansei Corp | Harness routing structure |
| CN104362562A (en) * | 2014-11-17 | 2015-02-18 | 重庆易初机械有限公司 | Communication pipe capable of monitoring water leaking state |
| CN106255368A (en) * | 2016-08-29 | 2016-12-21 | 四川行之智汇知识产权运营有限公司 | A kind of industrial control cabinet |
| CN107591749A (en) * | 2017-10-09 | 2018-01-16 | 江苏大浪电气集团有限公司 | A kind of sectional possesses the cable testing bridge of dustproof construction |
| CN207459621U (en) * | 2017-11-22 | 2018-06-05 | 江苏创汇电气科技有限公司 | Cable testing bridge drainage system |
| CN209119731U (en) * | 2018-12-20 | 2019-07-16 | 江苏合益电气制造有限公司 | A kind of cable testing bridge with moisture-proof function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109787098B (en) | Intelligent terminal box | |
| CN112271575A (en) | Intelligent dampproofing high tension switchgear based on thing networked control | |
| CN106377982A (en) | Intelligent drying moisture absorber and dry moisture absorbing method thereof | |
| CN112260168A (en) | Cable testing bridge convenient to drainage and dampproofing processing carry out | |
| CN211051217U (en) | Intelligent cloud fire-fighting inspection executor device | |
| CN206276208U (en) | A kind of intelligence dries dehydrating breather | |
| CN108565813A (en) | Cable duct drainage system and cable duct | |
| CN108426461A (en) | A kind of cooling cylinder of laboratory assembled air-conditioner humidifier | |
| CN207836052U (en) | A kind of coupler with moisture-proof function | |
| CN212727854U (en) | Gardens lightning protection case good heat dissipation | |
| CN216850865U (en) | Anti-corrosion and anti-creeping transformer cabinet based on transformer substation | |
| CN213071797U (en) | Dampproofing dehumidification high-low voltage distribution cabinet | |
| CN208158070U (en) | Cable duct drainage system and cable duct | |
| CN212369883U (en) | Dehumidification air inlet unit and air quality check out test set | |
| CN209948456U (en) | Industrial waterproof distribution box | |
| CN219679075U (en) | Dehumidifying, dewatering and condensation preventing device for box | |
| CN211378448U (en) | Electric appliance cabinet with temperature detection function | |
| CN210669061U (en) | Open-air electric power cabinet | |
| CN113262610A (en) | Dehumidification device and dehumidification method applied to electrical equipment | |
| CN217823851U (en) | Constant temperature device for preventing terminal box from being damped | |
| CN207885241U (en) | A kind of moisture proof food storage warehouse ventilation device | |
| CN208385948U (en) | It is a kind of can pre- anti-condensation outdoor electricity distribution cabinet | |
| CN210517542U (en) | Dustproof dehydrating unit that relay protection used | |
| CN218249444U (en) | Automatic drainage device of air freezing dryer | |
| CN211980375U (en) | Maintenance-free transformer moisture absorber |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210122 |
|
| RJ01 | Rejection of invention patent application after publication |