CN104493356A - Positioning resistance welding electrode for reinforcement plate welded assemblies of automobile locks - Google Patents
Positioning resistance welding electrode for reinforcement plate welded assemblies of automobile locks Download PDFInfo
- Publication number
- CN104493356A CN104493356A CN201410668441.9A CN201410668441A CN104493356A CN 104493356 A CN104493356 A CN 104493356A CN 201410668441 A CN201410668441 A CN 201410668441A CN 104493356 A CN104493356 A CN 104493356A
- Authority
- CN
- China
- Prior art keywords
- electrode
- welding
- spring
- electrode cap
- positioning
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 82
- 230000000712 assembly Effects 0.000 title abstract description 3
- 238000000429 assembly Methods 0.000 title abstract description 3
- 230000002787 reinforcement Effects 0.000 title abstract 6
- 239000003351 stiffener Substances 0.000 claims description 21
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000011810 insulating material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- QZLJNVMRJXHARQ-UHFFFAOYSA-N [Zr].[Cr].[Cu] Chemical compound [Zr].[Cr].[Cu] QZLJNVMRJXHARQ-UHFFFAOYSA-N 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/3009—Pressure electrodes
- B23K11/3018—Cooled pressure electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/14—Projection welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
Abstract
The invention relates to a positioning resistance welding electrode for reinforcement plate welded assemblies of automobile locks. The positioning resistance welding electrode comprises an upper electrode and a lower electrode. The upper electrode and the lower electrode are respectively fixed onto an upper electrode arm and a lower electrode arm of a welding machine, the lower electrode comprises a conductive mechanism and a positioning mechanism, the positioning mechanism comprises an insulating positioning pin and a spring, the conductive mechanism comprises an electrode cover and an electrode cover support, and the spring is fixed into the electrode cover support; the insulating positioning pin is arranged on the spring, an operator can hold a to-be-welded reinforcement plate of a lock and an accessory by the hands during welding and places the to-be-welded reinforcement plate of the lock and the accessory into the insulating positioning pin to position the to-be-welded reinforcement plate of the lock and the accessory, and resistance projection welding can be carried out on the to-be-welded reinforcement plate of the lock and the accessory by the aid of the upper electrode and the lower electrode. Compared with the prior art, the positioning resistance welding electrode has the advantages of simplicity in operation and maintenance, convenience in disassembling, good error detection property, high welding quality stability and production efficiency and the like.
Description
Technical field
The present invention relates to a kind of welding electrode, especially relate to a kind of positioning welding electrode for electric resistance welding automotive lock stiffener welding assembly.
Background technology
No matter whether the front/rear door of automobile pass through long-term folding, and its lock pin all should be in normal stable state, and this just needs lock pin stiffener keeping enough intensity with gusset exterior skin weld.Current automotive lock stiffener is all generally adopt electric resistance welding when welding with gusset exterior skin, electric resistance welding is pressed in by weldment between two electrodes, and impose electric current, the resistance heat effect utilizing electric current to flow through work piece interface and adjacent domain generation is heated fusing or mecystasis, make it a kind of method forming corrupt split, be widely used in auto industry, welding electrode of the prior art is generally straight shape structure, put in inside beam channel and cannot directly contact with welding position, cause electrode force and welding current even, poor welding quality, and generally made by insulating materials for the locating core positioned the nut that need weld, structural strength is low, easy to wear, weldment is made to locate inaccuracy, postwelding product size precision is low, impact assembling.The positioning welding electrode of many automotive lock stiffener welding assemblies, also exist and make complexity, location wearing and tearing are large, frequency of maintenance is large, reduce positioning precision to fall and operating efficiency, and poor insulativity, therefore must there is corresponding special welding keeper electrode in welding process, can further improve welding efficiency and positioning precision like this, and ensure its welding stability.
Summary of the invention
Object of the present invention be exactly provide a kind of in order to overcome defect that above-mentioned prior art exists and operate that maintenance is simple, easy accessibility, error detection is good, stability of the welding quality is high, production efficiency the is high positioning welding electrode for electric resistance welding automotive lock stiffener welding assembly.
Object of the present invention can be achieved through the following technical solutions: for the positioning welding electrode of electric resistance welding automotive lock stiffener welding assembly, it is characterized in that, comprise top electrode and bottom electrode, described top electrode and bottom electrode are separately fixed on welding machine upper electrode arm and lower polar arm, described bottom electrode comprises conductive mechanism and detent mechanism, wherein, described detent mechanism comprises insulated dowel, spring, described conductive mechanism comprises electrode cap and electrode cap bearing, and described spring is fixed in electrode cap bearing; Described insulated dowel is positioned on spring, and during welding, hand-held lock stiffener to be welded and accessory are put into insulated dowel and located, then carries out resistance projection-welding by top electrode, bottom electrode and connect.
Described electrode cap bearing is installed on bottom arm, is provided with a spring mounting hole in electrode cap bearing, and described spring fitting in described spring mounting hole, and can elongate up and down or compress.
The degree of depth of described spring mounting hole is greater than the length of spring elongation to maximum position.
Described electrode cap lid is located on electrode cap bearing, and is provided with the through hole passed for insulated dowel in electrode cap center.
Described insulated dowel comprises the base linked together with spring, through the main body of electrode cap, and exposes the plunger at motor cover top, described base, main body and plunger integrated setting.
Described base comprises the installation portion in cylindrical shape and the connecting portion in frustum, wherein the diameter of diameter and the spring of installation portion is suitable, and with spring clamping, the stub end of described connecting portion is connected and installed portion, little head end connects main body, and whole base is positioned at described spring mounting hole;
Described main body is the through whole electrode cap of cylindrical shape, and the through-hole diameter at electrode cap center is suitable with described main diameter;
Described plunger is exposed electrode cap top and is treated welding assembly and position.
Described electrode cap bearing is also provided with cold gas interface, spring mounting hole described in this cold gas orifice.
Described top electrode and bottom electrode are equipped with cooling water hole.
Described top electrode, electrode cap, electrode cap bearing are equipped with chamfering.
Described top electrode, bottom electrode are become by chromium zirconium copper, and described insulated dowel is made up of nonmetal abrasion-proof insulating material.
Compared with prior art, the present invention has the following advantages:
1, simple to operate: step is clear and definite, is easily understood;
2, dismounting maintenance is convenient: if any insulated dowel entirety in lower large little structure, wherein stub end (base) linking springs, and be fixed in electrode cap bearing, and by covering the upper and lower displacement of electrode cap restriction base above it, meanwhile, can accurately control by spring and electrode cap the length exposed at insulated dowel top, thus realize accurately location, and damage and can directly spin off electrode cap and change, also can directly change if any electrode cap wearing and tearing
3, stability of the welding quality is high: insulated dowel effectively can avoid welding shunting, improve the stability of welding, top electrode and bottom electrode are equipped with cooling water hole simultaneously, also be provided with cooling pore on the bottom electrode simultaneously, while welding, the temperature constant of electrode can be ensured, thus ensure the stable of welding.
4, production efficiency is high: more transducer set electrode meets welding 400 ~ 500 solder joints completely under normal circumstances.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the upward view of structure of the present invention.
In figure, 1 be top electrode, 2 be bottom electrode, 21 be electrode cap bearing, 22 be electrode cap, 3 be insulated dowel, 31 be base, 32 be main body, 33 be plunger, 4 for spring, Q be cold gas interface, S1 is top electrode cooling water hole, S2 is bottom electrode cooling water hole.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is implemented premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figures 1 to 3, for the positioning welding electrode of electric resistance welding automotive lock stiffener welding assembly, comprise top electrode 1 and bottom electrode 2, described top electrode 1 and bottom electrode 2 are separately fixed on welding machine upper electrode arm and lower polar arm, described bottom electrode 2 comprises conductive mechanism and detent mechanism, and wherein, described detent mechanism comprises insulated dowel 3, spring 4, described conductive mechanism comprises electrode cap 22 and electrode cap bearing 21, and described spring 4 is fixed in electrode cap bearing 21; Described insulated dowel 3 is positioned on spring 4,
Described electrode cap bearing 21 is installed on bottom arm, is provided with a spring mounting hole in electrode cap bearing 21, and described spring 4 is arranged in described spring mounting hole, and can elongate up and down or compress.The degree of depth of described spring mounting hole is greater than the length of spring elongation to maximum position, to ensure that spring 4 and insulated dowel 3 base 31 have enough extendable rooms in spring mounting hole.Described electrode cap 22 is located on electrode cap bearing 21, and is provided with the through hole passed for insulated dowel in electrode cap 22 center.
Described insulated dowel 3 comprises the base 31 linked together with spring, through the main body 32 of electrode cap, and exposes the plunger 33 at motor cover top, described base 31, main body 32 and plunger 33 integrated setting.
Described base 31 comprises the installation portion in cylindrical shape and the connecting portion in frustum, wherein the diameter of diameter and the spring of installation portion is suitable, and with spring 4 clamping, the stub end of described connecting portion is connected and installed portion, little head end connects main body, and whole base is positioned at described spring mounting hole; Described main body 32 is in the through whole electrode cap 22 of cylindrical shape, and the through-hole diameter at electrode cap 22 center is suitable with described main body 32 diameter; Described plunger 33 is exposed electrode cap top and is treated welding assembly and position.
Described electrode cap bearing 21 is also provided with cold gas interface Q, this cold gas interface Q is communicated with described spring mounting hole.Described top electrode 1 is provided with top electrode cooling water hole S1, and bottom electrode 2 is provided with bottom electrode cooling water hole S2.
Described top electrode 1, electrode cap 22, electrode cap bearing 21 are equipped with chamfering.
Described top electrode 1, bottom electrode 2 are become by chromium zirconium copper, and described insulated dowel 3 is made up of nonmetal abrasion-proof insulating material.
During use, lock stiffener is positioned in the electrode cap 22 on bottom electrode 2, make the hole on lock stiffener through the plunger 33 of insulated dowel 3, again by the plunger 33 of accessory to be welded (nut) hole through insulated dowel 3, pedestal on accessory is placed down, starts welding and is welded the sub-unit that lock is strengthened on assembly by upper/lower electrode.
Claims (9)
1. for the positioning welding electrode of electric resistance welding automotive lock stiffener welding assembly, it is characterized in that, comprise top electrode and bottom electrode, described top electrode and bottom electrode are separately fixed on welding machine upper electrode arm and lower polar arm, described bottom electrode comprises conductive mechanism and detent mechanism, and wherein, described detent mechanism comprises insulated dowel, spring, described conductive mechanism comprises electrode cap and electrode cap bearing, and described spring is fixed in electrode cap bearing; Described insulated dowel is positioned on spring, and during welding, hand-held lock stiffener to be welded and accessory are put into insulated dowel and located, then carries out resistance projection-welding by top electrode, bottom electrode and connect.
2. the positioning welding electrode for electric resistance welding automotive lock stiffener welding assembly according to claim 1, it is characterized in that, described electrode cap bearing is installed on bottom arm, a spring mounting hole is provided with in electrode cap bearing, described spring fitting in described spring mounting hole, and can elongate up and down or compress.
3. the positioning welding electrode for electric resistance welding automotive lock stiffener welding assembly according to claim 2, it is characterized in that, the degree of depth of described spring mounting hole is greater than the length of spring elongation to maximum position.
4. the positioning welding electrode for electric resistance welding automotive lock stiffener welding assembly according to claim 3, it is characterized in that, described electrode cap lid is located on electrode cap bearing, and is provided with the through hole passed for insulated dowel in electrode cap center.
5. the positioning welding electrode for electric resistance welding automotive lock stiffener welding assembly according to claim 4, it is characterized in that, described insulated dowel comprises the base linked together with spring, through the main body of electrode cap, and expose the plunger at motor cover top, described base, main body and plunger integrated setting.
6. the positioning welding electrode for electric resistance welding automotive lock stiffener welding assembly according to claim 5, it is characterized in that, described base comprises the installation portion in cylindrical shape and the connecting portion in frustum, wherein the diameter of installation portion is suitable with the diameter of spring, and with spring clamping, the stub end of described connecting portion is connected and installed portion, and little head end connects main body, and whole base is positioned at described spring mounting hole;
Described main body is the through whole electrode cap of cylindrical shape, and the through-hole diameter at electrode cap center is suitable with described main diameter;
Described plunger is exposed electrode cap top and is treated welding assembly and position.
7. the positioning welding electrode for electric resistance welding automotive lock stiffener welding assembly according to claim 2, is characterized in that, described electrode cap bearing is also provided with cold gas interface, spring mounting hole described in this cold gas orifice.
8. the positioning welding electrode for electric resistance welding automotive lock stiffener welding assembly according to claim 1, is characterized in that, described top electrode and bottom electrode are equipped with cooling water hole.
9. the positioning welding electrode for electric resistance welding automotive lock stiffener welding assembly according to claim 1, it is characterized in that, described top electrode, electrode cap, electrode cap bearing are equipped with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668441.9A CN104493356A (en) | 2014-11-20 | 2014-11-20 | Positioning resistance welding electrode for reinforcement plate welded assemblies of automobile locks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668441.9A CN104493356A (en) | 2014-11-20 | 2014-11-20 | Positioning resistance welding electrode for reinforcement plate welded assemblies of automobile locks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104493356A true CN104493356A (en) | 2015-04-08 |
Family
ID=52934856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410668441.9A Pending CN104493356A (en) | 2014-11-20 | 2014-11-20 | Positioning resistance welding electrode for reinforcement plate welded assemblies of automobile locks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104493356A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057866A (en) * | 2015-09-09 | 2015-11-18 | 上海奥林汽车配件有限公司 | Positioning and welding tool electrode used for automobile reinforcement plate |
| CN107457477A (en) * | 2017-08-22 | 2017-12-12 | 上海奥林汽车配件有限公司 | A kind of positioning welding electrode for the welding of bus location hook |
| CN107520530A (en) * | 2017-09-23 | 2017-12-29 | 无锡先驱自动化科技有限公司 | One kind folder weldering soldering tip |
| CN111584308A (en) * | 2020-03-23 | 2020-08-25 | 中国航天时代电子有限公司 | Replaceable contact device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471029A (en) * | 1994-07-22 | 1995-11-28 | Tuffaloy Products, Inc. | Water cooled resistance welding assembly |
| CN1665635A (en) * | 2002-07-20 | 2005-09-07 | 青山好高 | Electrode for projection welding |
| CN201091957Y (en) * | 2007-10-22 | 2008-07-30 | 宁波大学 | Spot welding head of spot welding machine |
| KR100870415B1 (en) * | 2007-07-16 | 2008-11-25 | 주식회사 성우하이텍 | Panel lifting unit of nut welding device |
| CN102151972A (en) * | 2011-05-13 | 2011-08-17 | 重庆平伟科技(集团)有限公司 | Compulsive air-cooling lower electrode specially used for resistance projection welding of annular nut |
| CN202224834U (en) * | 2011-09-30 | 2012-05-23 | 重庆建设·雅马哈摩托车有限公司 | Nut insulation shrinkage centering projection welding device |
| CN202317417U (en) * | 2011-10-27 | 2012-07-11 | 重庆市北碚区枫火机械制造有限公司 | Spot-welding electrode capable of preventing nut from being adhered to positioning pin |
| CN204262580U (en) * | 2014-11-20 | 2015-04-15 | 上海奥林汽车配件有限公司 | For the positioning welding electrode of electric resistance welding automotive lock stiffener welding assembly |
-
2014
- 2014-11-20 CN CN201410668441.9A patent/CN104493356A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471029A (en) * | 1994-07-22 | 1995-11-28 | Tuffaloy Products, Inc. | Water cooled resistance welding assembly |
| CN1665635A (en) * | 2002-07-20 | 2005-09-07 | 青山好高 | Electrode for projection welding |
| KR100870415B1 (en) * | 2007-07-16 | 2008-11-25 | 주식회사 성우하이텍 | Panel lifting unit of nut welding device |
| CN201091957Y (en) * | 2007-10-22 | 2008-07-30 | 宁波大学 | Spot welding head of spot welding machine |
| CN102151972A (en) * | 2011-05-13 | 2011-08-17 | 重庆平伟科技(集团)有限公司 | Compulsive air-cooling lower electrode specially used for resistance projection welding of annular nut |
| CN202224834U (en) * | 2011-09-30 | 2012-05-23 | 重庆建设·雅马哈摩托车有限公司 | Nut insulation shrinkage centering projection welding device |
| CN202317417U (en) * | 2011-10-27 | 2012-07-11 | 重庆市北碚区枫火机械制造有限公司 | Spot-welding electrode capable of preventing nut from being adhered to positioning pin |
| CN204262580U (en) * | 2014-11-20 | 2015-04-15 | 上海奥林汽车配件有限公司 | For the positioning welding electrode of electric resistance welding automotive lock stiffener welding assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057866A (en) * | 2015-09-09 | 2015-11-18 | 上海奥林汽车配件有限公司 | Positioning and welding tool electrode used for automobile reinforcement plate |
| CN107457477A (en) * | 2017-08-22 | 2017-12-12 | 上海奥林汽车配件有限公司 | A kind of positioning welding electrode for the welding of bus location hook |
| CN107520530A (en) * | 2017-09-23 | 2017-12-29 | 无锡先驱自动化科技有限公司 | One kind folder weldering soldering tip |
| CN111584308A (en) * | 2020-03-23 | 2020-08-25 | 中国航天时代电子有限公司 | Replaceable contact device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104493356A (en) | Positioning resistance welding electrode for reinforcement plate welded assemblies of automobile locks | |
| CN102151972A (en) | Compulsive air-cooling lower electrode specially used for resistance projection welding of annular nut | |
| CN202070850U (en) | Special resistance projection welding lower electrode for ring nuts | |
| CN204262580U (en) | For the positioning welding electrode of electric resistance welding automotive lock stiffener welding assembly | |
| CN108356396B (en) | Stud welding gun | |
| CN102962571A (en) | Double-head separate resistance spot welding tongs | |
| CN102398136B (en) | Fixture for simultaneously welding multiple salient points of automobile parts | |
| CN104999218A (en) | Welding positioner for auxiliary frame of electric car | |
| CN105290674B (en) | The special-shaped spot welding bottom electrode probeed into inside outer ring assembly | |
| CN201720598U (en) | Projection-welded upper and lower electrodes | |
| CN203875470U (en) | Positioning welding electrode used for hinge support welding assembly of automobile | |
| CN104907756B (en) | Three lobe lower electrode arrangement of clamping soldering part when irregular parts weld | |
| CN202752737U (en) | Device for welding short overlap edges during production of automobile filler cap | |
| CN104493355A (en) | Positioning welding electrode for automobile hinge support welding assembly | |
| CN102615413B (en) | Welding electrode assembly for car front door load-bearing beam member | |
| CN103212916B (en) | A kind of welding method of vehicle body fuel filler cap and welding tooling | |
| CN204747879U (en) | A electrode structure under three lamellas that clamping welding part when is used for welding of irregular spare part | |
| CN202943358U (en) | Spot welding device | |
| CN102248271B (en) | Lower welding electrode of projection welding nut | |
| CN203888591U (en) | Reinforcing rib plate for inner plates of right and left front doors | |
| CN203437803U (en) | Automatic welding plant used for spot welding of body in white | |
| CN203330587U (en) | Shock absorber seam welder | |
| CN203679603U (en) | Locating fixture for locating automotive ABS support in electric resistance welding | |
| CN216325770U (en) | Arc electrode of automobile generator regulator | |
| CN103286490A (en) | Damper seam welder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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: 20150408 |
|
| RJ01 | Rejection of invention patent application after publication |