CN102046997A - Centering feature of a flexplate to pilot the hub of a dry hybrid damper - Google Patents
Centering feature of a flexplate to pilot the hub of a dry hybrid damper Download PDFInfo
- Publication number
- CN102046997A CN102046997A CN2009801194980A CN200980119498A CN102046997A CN 102046997 A CN102046997 A CN 102046997A CN 2009801194980 A CN2009801194980 A CN 2009801194980A CN 200980119498 A CN200980119498 A CN 200980119498A CN 102046997 A CN102046997 A CN 102046997A
- Authority
- CN
- China
- Prior art keywords
- flexible plate
- damper
- circumferential surface
- propeller boss
- centering
- 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
- 238000000034 method Methods 0.000 claims description 20
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/1207—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon characterised by the supporting arrangement of the damper unit
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
A flexplate for centering a diy hybrid damper, including a circumferential surface arranged to engage a circumferential surface for a hub for the damper to center the hub and the flexplate and a first portion arranged to at least indirectly engage a crankshaft to center the flexplate on the crankshaft. In one embodiment, the first portion includes at least one radially inwardly facing surface arranged to engage a radially outwardly facing surface on the crankshaft. In another embodiment, the flexplate includes a second portion arranged for connecton with at least one cover plate for the damper. In a further embodiment, the circumferential surface for the flexplate is radially inwardly facing and the circumferential surface for the hub is radially outwardly facing or the circumferential surface for the flexplate is radially outwardly facing and the circumferential surface for the hub is radially inwardly facing.
Description
Technical field
The present invention relates to make the propeller boss of damper and the device of flange assembly centering (centering), described damper particularly relates to dry type and mixes damper.
Background technique
It is known making wet mixed damper centering.Regrettably, this technology possibly can't be applied to dry type mixing damper.
Thus, exist for making dry type mix the long-term demand of damper centering.
Summary of the invention
The wide model of the present invention ground comprises a kind of flexible plate that is used to make dry type mixing damper centering (or placed in the middle), it comprises being arranged to and engages with the circumferential surface of the propeller boss of damper so that the circumferential surface of propeller boss and flexible plate centering, and is arranged at least and engages indirectly with bent axle so that the first portion of flexible plate centering on bent axle.In one embodiment, first portion comprises at least one radially towards interior surface, its be arranged to bent axle on radially towards outer surface engagement.In another embodiment, flexible plate comprises second portion, and it is arranged to be connected with at least one overlay of damper.In another embodiment, the circumferential surface of flexible plate radially towards the circumferential surface of interior and propeller boss radially towards outside, perhaps the circumferential surface of flexible plate radially towards the circumferential surface of outer and propeller boss radially towards interior.
In one embodiment, the described part that is arranged to be connected with described bent axle comprises and is arranged to a plurality of features that engage with a plurality of bumps on the described bent axle.In another embodiment, described a plurality of feature comprises a plurality of holes.In another embodiment, flexible plate comprises and is arranged to the radial wall that engages with the axial end portion that is used for propeller boss.In another mode of execution, the circumferential surface of described radial wall and described flexible plate is connected.In one embodiment, propeller boss and damper are whole forms.In another embodiment, the outer surface of propeller boss engages with the flange that is used for damper.
The wide model of the present invention ground comprises that also dry type mixes damper assembly, and it comprises: have radially flexible plate, be arranged to the first portion that is connected with bent axle towards interior circumferential surface, and second portion; Have radially towards the propeller boss of outer circumferential surface, described circumferential surface radially engages so that described propeller boss and described flexible plate centering towards interior circumferential surface with described; And the damper that is connected rotatably with the described second portion of described flexible plate and is connected rotatably with described propeller boss.In one embodiment, described damper comprise at least one overlay of being connected with the described second portion of described flexible plate and with described propeller boss flange connecting.In another embodiment, the described first portion of described flexible plate comprises and is arranged to a plurality of holes that engage with a plurality of bumps on the described bent axle.
The wide model of the present invention ground also comprises dry type mixing damper assembly, it comprises: the part that has radially towards the flexible plate of outer circumferential surface and be arranged to be connected with bent axle, and have radially towards the one flange/damper propeller boss of interior circumferential surface, describedly radially radially engage so that described one damper/flange propeller boss and described flexible plate centering with described at least indirectly towards outer circumferential surface towards interior circumferential surface.
Simultaneously, the wide model of the present invention ground also comprises a kind of method that is used to make dry type mixing damper assembly centering.
A general purpose of the present invention provides and a kind ofly will be used for the flexible plate that dry type is mixed the remaining part centering of the propeller boss of damper and flange assembly and damper.A general purpose of the present invention provides a kind of dry type to mix damper in addition, and it has feasible the be used for propeller boss of damper and the flexible plate of flange assembly centering.
According to the following description of preferred implementation of the present invention and with reference to the accompanying drawings and claims, described and other purpose of the present invention and advantage will readily appreciate that.
Description of drawings
To the characteristic of the present invention and the method for operation more fully be described with appended accompanying drawing in following detailed description of the present invention now, wherein:
Figure 1A shows the perspective view of the cylindrical coordinate system of the term definition on the space that is used for the application;
Figure 1B is the perspective view of the object in the cylindrical coordinate system of Figure 1A, and it shows the term definition on the space that is used for the application;
Fig. 2 is the front elevation that has the flexible plate of the present invention of damper and bent axle;
Fig. 3 is the viewgraph of cross-section of flexible plate, damper and the bent axle shown in Fig. 2 of the roughly intercepting of the line 3-3 in Fig. 2;
Fig. 4 is the viewgraph of cross-section of flexible plate, damper and the bent axle shown in Fig. 2 of the roughly intercepting of the line 4-4 in Fig. 2;
Fig. 5 is the perspective view of the flexible plate shown in Fig. 2;
Fig. 6 is the details in the zone 6 shown in Fig. 5; And
Fig. 7 is the partial cross-sectional view that has the flexible plate of the present invention of one flange/damper propeller boss.
Embodiment
At first, it should be understood that on the different accompanying drawings that similar accompanying drawing number indicates on the identical or function of the present invention similarly element of construction.Although according to thinking that at present preferred aspect describes the present invention, it should be understood that as claim claimed the invention is not restricted to as described in disclosed aspect.
In addition, it should be understood that to the invention is not restricted to described specific method, material and version, but itself can change certainly.Should also be understood that term only is used to describe the purpose of specific aspect as used herein, and be not intended to limit scope of the present invention, described scope only limits by claims.
Unless other qualification is arranged, otherwise all scientific and technical terminologies have implication as those skilled in the art's common sense as used herein.Although in practice of the present invention or test, can use and method described herein, device or materials similar or any method, device or the material that are equal to, now preferable methods, device and material are described.
Figure 1A shows the perspective view of the cylindrical coordinate system 80 of the term definition on the space that is used for the application.The present invention describes in the environment of cylindrical coordinate system at least in part.System 80 has longitudinal axis 81, and it is used as the reference with the term in lower direction and space.Adjective " axial ", " radially " and " circumferential " respectively about parallel to the axis 81, the direction of radius 82 (it is perpendicular to axis 81) and circumference 83.Adjective " axial ", " radially " and " circumferential " also about with parallel plane orientation separately.In order to clearly demonstrate the layout on each plane, used object 84,85 and 86.The surface 87 of object 84 forms axial plane.That is to say the line that axis 81 forms along described surface.The surface 88 of object 85 forms the radial plane.That is to say the line that radius 82 forms along described surface.The surface 89 of object 86 forms circumferential plane.That is to say the line that circumference 83 forms along described surface.As another example, axial motion or layout parallel to the axis 81, and motion radially or layout are parallel to radius 82, and circumferential motion or layout are parallel to circumference 83.Rotation is relevant to axis 81.
Adverbial word " vertically ", " radially " and " along circumferentially " respectively about parallel to the axis 81, the direction of radius 82 or circumference 83.Adverbial word " vertically ", " radially " and " along circumferentially " also about with parallel plane orientation separately.
Figure 1B is the perspective view of the object 90 in the cylindrical coordinate system 80 of Figure 1A, and it shows the term definition on the space that is used for the application.Cylindrical body 90 is represented the cylindrical body in the cylindrical coordinate system and is not used in and limits the present invention by any way.Object 90 comprises axial surface 91, radial surface 92 and circumferential surface 93.Surface 91 is parts of axial plane, and surface 92 is parts of radial plane, and surface 93 is parts of circumferential surface.
Fig. 2 is the front elevation that has the flexible plate of the present invention 10 of damper and bent axle;
Fig. 3 is the viewgraph of cross-section of flexible plate 10, damper and the bent axle shown in Fig. 2 of the roughly intercepting of the line 3-3 in Fig. 2.
Fig. 4 is the viewgraph of cross-section of flexible plate 10, damper and the bent axle shown in Fig. 2 of the roughly intercepting of the line 4-4 in Fig. 2.
Fig. 5 is the perspective view of the flexible plate 10 shown in Fig. 2;
Fig. 6 is the details in the zone 6 shown in Fig. 5.Following content should be according to Fig. 2 to 6.Flexible plate comprises circumferential surface 12, and it is arranged at least indirectly and engages so that propeller boss and flexible plate centering with the circumferential surface 14 of the propeller boss 16 that is used for damper 18 assemblies.As shown in drawings, circumferential surface is in direct contact condition.(not shown) in one embodiment, for example for the middle device of sleeve pipe is set to contact between circumferential surface, described thus surface engages indirectly.Flexible plate also comprises part 20, and makes flexible plate centering on bent axle, and described part 20 is arranged to bent axle and engages, and described bent axle for example is a bent axle 22.In one embodiment, flexible plate comprises and is arranged to the part 24 that is connected with at least one overlay of damper, and described part 24 for example is the exterior periphery part of flexible plate, and described overlay for example is overlay 26 and 28.Circumferential surface 12 radially towards interior and circumferential surface 14 radially towards outside.
In one embodiment, the part that is arranged to the flexible plate that is connected with bent axle comprises and is arranged to a plurality of features 30 that engage with a plurality of bumps 32 on the bent axle.In another embodiment, feature 30 is hole or the through holes in the flexible plate.In another embodiment, flexible plate comprises the radial wall 34 that the axial end portion 36 that is arranged to and is used for propeller boss engages.Wall 34 is connected with surface 12, so that flexible plate is with cup-shaped reception (cups) end 36.
Provide other details below about flexible plate 1.In one embodiment, part 20 is perforated to form surface 38, described surperficial 38 and engages with surface 40 on the bent axle.In another embodiment, surface 40 is mach steps in bent axle.In another embodiment, the configuration 42 of flexible plate comprises surface 12 and wall 36, and propeller boss is inserted in the described configuration.Utilize any device as known in the art, for example locating stud or rivet 44, flexible plate is connected rigidly, for example is connected rotatably with it with damper 18, and with damper 18 centerings, for example be overlay 26 and 28.Connect rotatably or the fastening meaning is that flexible plate and damper are connected to and make two members rotate together, just two members are fixed aspect rotation.Connect two members rotatably and must not be limited in relative movement in other direction.For example, two members that connect rotatably can have axial motion relative to each other via splined.The motion that it should be understood, however, that is rotatably connected is not illustrated in other direction must present.For example, two members that connect rotatably can be vertically one fix with respect to another.The above stated specification that is rotatably connected is applicable to following discussion.
Because the major component centering of flexible plate 10 and damper 18, and propeller boss 16 by centering in flexible plate 10, so the propeller boss of damper and flange 46 assemblies by to the neutralization protection to prevent remaining part misalignment with respect to damper.In one embodiment, flexible plate forms by punching press.Advantageously, because all required tolerances can obtain in stamping process, so the flexible plate of punching press does not need the secondary mechanical course of working.
In one embodiment, the outer surface 48 of propeller boss is engaged with the flange 46, for example far-end 49 that are used for damper.When damper is in when in service, just when load was applied on the flexible plate, moment of torsion was transferred to propeller boss from flange.In another embodiment, rivet 44 is connected with inertia rings 50 flexible plate with 51.In another embodiment, ring gear 52 is by any way as known in the art, for example be attached on the flexible plate by welding, and can engage with the starting arrangement (not shown) to start described flexible plate and be installed in wherein vehicle (not shown).Usually, flexible plate 10 make propeller boss and flange assembly and damper remaining part and with bent axle centering.
Fig. 7 is the partial cross-sectional view that has the flexible plate of the present invention 56 of one flange/damper propeller boss 58.That is to say that the boss portion 60 and the flange 62 that are used for damper 64 (only partly being illustrated) integrally form with propeller boss.Flexible plate comprises circumferential surface 66, and it is arranged to the circumferential surface 68 that is used for propeller boss 58 and engages directly or indirectly so that propeller boss and flexible plate centering.In one embodiment, for example be placed between flexible plate and the element 58 for the antifriction apparatus of sleeve pipe 70.(not shown) in another embodiment, surface 66 directly contact with 68.
Flexible plate also comprises part 72, and described part 72 is arranged to for example to the bent axle of bent axle 74 engages, and makes flexible plate centering on bent axle.In one embodiment, part 72 is connected with crank shaft bolt.In one embodiment, surface 68 radially to the outside to and the surface 70 radially inwardly face.
Thus, the flexible plate 56 of single-piece (or monoblock) is used for making by the internal surface 68 of the damper flange/damper propeller boss 58 of one first side and the second side both sides centering of damper (only having its part to be illustrated), and described damper for example is a damper 64.In one embodiment, the external splines 76 on flange/propeller boss 58 forms by the extension process in the extruding or can be by roll extrusion when secondary operations.The radius 78 on surface 68 is centering diameters, and is formed finished product size and size during the extension process.
Following content should be according to Fig. 2 to 7.Following content description is used to make dry type to mix the method for the present invention of damper assembly centering.Although for the sake of clarity provide method, should from described sequence, not infer order, unless point out clearly with step by step sequence.The first step is connected flexible plate and centering with crankshaft rotating ground, and second step utilized the circumferential surface of flexible plate to control the radial position of the circumferential surface of the propeller boss that is used for damper, so that propeller boss and flexible plate centering.In one embodiment, the 3rd step was connected the overlay that flexible plate and at least one are used for damper rotatably.In another embodiment, the circumferential surface of flexible plate and propeller boss respectively radially towards interior and radially towards outside, perhaps the circumferential surface of flexible plate and propeller boss respectively radially towards outside with radially towards interior.
In one embodiment, flexible plate and crankshaft rotating ground is connected comprises with centering a plurality of holes on the flexible plate are engaged with a plurality of bumps on the bent axle.In another embodiment, the 4th step engaged the outer surface and the flange that is used for damper of propeller boss.In another embodiment, propeller boss and damper are whole forms.
Thus; as seen purpose of the present invention all realizes effectively; although variation of the present invention and to change form should be conspicuous to those skilled in the art, described version should be included in the spirit and scope as claims the present invention for required protection.Should also be understood that aforesaid description be explanation of the present invention and should not be considered to the restriction.Therefore, under the situation that does not break away from the spirit and scope of the present invention, can make other mode of execution of the present invention.
Claims (21)
1. one kind is used to make dry type to mix the flexible plate of damper centering, and it comprises:
Circumferential surface, it is arranged to and engages with the circumferential surface of the propeller boss that is used for damper at least indirectly so that propeller boss and flexible plate centering; And
First portion, described first portion are arranged to bent axle and engage so that described flexible plate centering on described bent axle.
2. flexible plate as claimed in claim 1 is characterized in that, described first portion comprises at least one radially towards interior surface, described radially towards interior surface be arranged to described bent axle on radially towards outer surface engagement.
3. flexible plate as claimed in claim 1 is characterized in that described flexible plate also comprises second portion, and described second portion is arranged to be connected with at least one overlay of described damper.
4. flexible plate as claimed in claim 1 is characterized in that, the circumferential surface of described flexible plate is radially towards interior, and the circumferential surface of described propeller boss radially towards outside.
5. flexible plate as claimed in claim 1 is characterized in that, the described part that is arranged to be connected with described bent axle comprises and is arranged to a plurality of features that engage with a plurality of bumps on the described bent axle.
6. flexible plate as claimed in claim 4 is characterized in that, described a plurality of features comprise a plurality of holes.
7. flexible plate as claimed in claim 1 is characterized in that, described flexible plate also comprises and is arranged to the radial wall that engages with the axial end portion of described propeller boss.
8. flexible plate as claimed in claim 6 is characterized in that, the circumferential surface of described radial wall and described flexible plate is connected.
9. flexible plate as claimed in claim 1 is characterized in that, the circumferential surface of described flexible plate radially towards outside, and the circumferential surface of described propeller boss is radially towards interior.
10. flexible plate as claimed in claim 1 is characterized in that, described propeller boss and described damper are whole to be formed.
11. flexible plate as claimed in claim 1 is characterized in that, the outer surface of described propeller boss engages with the flange that is used for described damper.
12. a dry type is mixed damper assembly, it comprises:
Have radially flexible plate, be arranged to the first portion that is connected with bent axle towards interior circumferential surface, and second portion;
Have radially towards the propeller boss of outer circumferential surface, describedly radially radially engage so that described propeller boss and described flexible plate centering with described towards interior circumferential surface towards outer circumferential surface; And
The damper that is connected rotatably with the described second portion of described flexible plate and is connected rotatably with described propeller boss.
13. damper assembly as claimed in claim 11 is characterized in that, described damper comprise at least one overlay of being connected with the described second portion of described flexible plate and with described propeller boss flange connecting.
14. damper assembly as claimed in claim 11 is characterized in that, the described first portion of described flexible plate comprises and is arranged to a plurality of holes that engage with a plurality of bumps on the described bent axle.
15. a dry type is mixed damper assembly, it comprises:
The part that has radially towards the flexible plate of outer circumferential surface and be arranged to be connected with bent axle; And
Have radially towards the one flange/damper propeller boss of interior circumferential surface, describedly radially radially engage so that described one damper/flange propeller boss and described flexible plate centering with described at least indirectly towards outer circumferential surface towards interior circumferential surface.
16. one kind is used to make dry type to mix the method for damper assembly centering, it comprises:
Flexible plate is connected and centering with crankshaft rotating ground; And
Utilize the circumferential surface of described flexible plate to control the radial position of circumferential surface of the propeller boss of described damper, so that described propeller boss and described flexible plate centering.
17. method as claimed in claim 15 is characterized in that, described method comprises that the overlay that described flexible plate and at least one are used for described damper is connected rotatably.
18. method as claimed in claim 15, it is characterized in that, the circumferential surface of described flexible plate and described propeller boss respectively radially towards interior and radially towards outside, perhaps wherein, the circumferential surface of described flexible plate and described propeller boss respectively radially towards outside with radially towards interior.
19. method as claimed in claim 15 is characterized in that, described flexible plate is connected with described crankshaft rotating ground comprise with centering a plurality of holes on the described flexible plate are engaged with a plurality of bumps on the described bent axle.
20. method as claimed in claim 15 is characterized in that, described propeller boss and described damper are whole to be formed.
21. method as claimed in claim 15 is characterized in that, described method comprises that also the outer surface with described propeller boss engages with the flange that is used for described damper.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13006908P | 2008-05-28 | 2008-05-28 | |
| US61/130,069 | 2008-05-28 | ||
| US18891908P | 2008-08-14 | 2008-08-14 | |
| US61/188,919 | 2008-08-14 | ||
| PCT/EP2009/003313 WO2009143958A1 (en) | 2008-05-28 | 2009-05-11 | Centering feature of a flexplate to pilot the hub of a dry hybrid damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102046997A true CN102046997A (en) | 2011-05-04 |
Family
ID=41037875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801194980A Pending CN102046997A (en) | 2008-05-28 | 2009-05-11 | Centering feature of a flexplate to pilot the hub of a dry hybrid damper |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102046997A (en) |
| DE (1) | DE112009001221T5 (en) |
| WO (1) | WO2009143958A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9982748B2 (en) | 2012-12-12 | 2018-05-29 | Magna International | Flexplates and method for capacitor discharge welding of flexplates |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19959962A1 (en) * | 1998-12-28 | 2000-06-29 | Luk Lamellen & Kupplungsbau | Axially flexible flywheel for connection of a crankshaft of an internal combustion engine comprises discs and annular component with starter gear mounted to the counter pressure plate on the cams |
| JP3739670B2 (en) * | 2001-05-17 | 2006-01-25 | 本田技研工業株式会社 | Prime mover flywheel equipment |
| US8596164B2 (en) * | 2005-11-23 | 2013-12-03 | Dennis Reid | Engine and transmission coupling system and method |
-
2009
- 2009-05-11 DE DE112009001221T patent/DE112009001221T5/en not_active Ceased
- 2009-05-11 WO PCT/EP2009/003313 patent/WO2009143958A1/en active Application Filing
- 2009-05-11 CN CN2009801194980A patent/CN102046997A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009143958A1 (en) | 2009-12-03 |
| DE112009001221T5 (en) | 2011-04-07 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: German Herzogenaurach Applicant after: SCHAEFFLER TECHNOLOGIES AG & CO.KG Address before: German Herzogenaurach Applicant before: Schaeffler Technologies GmbH |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110504 |