CN214797905U - Antiskid valve connector and high-speed train using same - Google Patents
Antiskid valve connector and high-speed train using same Download PDFInfo
- Publication number
- CN214797905U CN214797905U CN202023289912.5U CN202023289912U CN214797905U CN 214797905 U CN214797905 U CN 214797905U CN 202023289912 U CN202023289912 U CN 202023289912U CN 214797905 U CN214797905 U CN 214797905U
- Authority
- CN
- China
- Prior art keywords
- semi
- connector
- outer side
- insulator
- sleeve
- 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
- 239000011265 semifinished product Substances 0.000 claims abstract description 49
- 239000012212 insulator Substances 0.000 claims abstract description 34
- 229920001971 elastomer Polymers 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 210000001503 joint Anatomy 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 22
- 210000002445 nipple Anatomy 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model provides an antiskid valve connector and use its high speed train, relates to the antiskid valve field of high speed train for the connector of solving current antiskid valve connector contacts poorly easily and supporting bellows and the relatively poor problem of structural reliability when hose nipple uses. In the antiskid valve connector, the outer side of a jack assembly pressed with a cable is clamped and assembled with a semi-finished plug, the semi-finished plug is butted with a semi-finished bent pipe through a clamping ring, the semi-finished bent pipe is butted with a hose connector, and a sealing gasket is arranged on the end surface between the hose connector and the semi-finished bent pipe; the plug hole assembly comprises a plug hole body and a crown spring assembled in the plug hole body, a second insulator is arranged on the outer side of a first insulator provided with a gear sleeve in a semi-finished plug product, an adapter sleeve is arranged on the outer side of the first insulator through an adapter sleeve clamping ring, a connecting sleeve is arranged on the outer side of the first insulator through the connecting sleeve clamping ring, a rivet is riveted on the outer side of the first insulator, a rubber pad is arranged on the end face between the adapter sleeve and the connecting sleeve, and a groove is formed in the outer side of a bent pipe body in the bent pipe semi-finished product along the circumferential direction and is internally provided with an O-shaped ring.
Description
Technical Field
The utility model relates to a high-speed train's antiskid valve technical field especially relates to an antiskid valve connector and use its high-speed train.
Background
At present, an antiskid valve is an important component of a high-speed train braking system, and when air braking is performed, a sliding detector outputs a braking relieving signal and a re-braking signal which are sent by an antiskid valve connector to the antiskid valve so as to perform an antiskid function.
In the prior art, an antiskid valve connector mainly comprises a nut, a sealing ring, a sealing piece, a shell, a rubber core and a contact pin; the structure strength and stability are poor, the service life of the product is short, and the insertion and extraction force is large. Specifically, the rubber core is not provided with a fixed limiting structure in the shell and has certain elasticity, and when the connector is plugged and pulled out, due to the limitation of an installation space under a vehicle and the structural lack of limitation, the rubber core and the contact pin are not easy to align accurately, and the rubber core can generate a certain inclination angle in the shell; if the connector is continuously and repeatedly rotated and plugged, rubber expansion can be caused, and the phenomenon of poor contact between the contact pin and the jack can be caused.
In addition, in order to protect the cable, a corrugated pipe needs to be additionally arranged, and a hose joint needs to be additionally arranged after parts such as a sealing ring, a sealing piece, a nut and the like are cancelled during assembly; at the moment, the connector is plugged and pulled, so that the rubber core is directly separated from the shell; or unplugged, the rubber core continues to remain on the connector receptacle and the housing has been unlocked from the receptacle.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an antiskid valve connector and use its high-speed train for the easy contact failure of connector of solving current antiskid valve connector, and the relatively poor technical problem of structural reliability when supporting bellows and hose nipple use.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a non-slip valve connector comprising: the plug assembly is provided with a cable in a pressing mode, a plug semi-finished product is assembled on the outer side of the plug assembly in a clamping mode, the plug semi-finished product is in butt joint with a bent pipe semi-finished product through a clamping ring, a hose joint is installed on the bent pipe semi-finished product in a butt joint mode, a sealing gasket is arranged on the end face between the hose joint and the bent pipe semi-finished product, and the hose joint is used for sleeving a corrugated hose;
the receptacle assembly includes: the spring clamp comprises a jack body and a crown spring assembled in an inner hole of the jack body;
the semi-finished plug comprises: the insulation structure comprises a first insulator provided with a gear sleeve, wherein a second insulator is arranged on the outer side of the first insulator, a switching sleeve is arranged on the outer side of the second insulator through a switching sleeve clamping ring, a connecting sleeve is arranged on the outer side of the switching sleeve through a connecting sleeve clamping ring, a rubber pad is arranged on the end face between the switching sleeve and the connecting sleeve, and a rivet is riveted on the outer side of the connecting sleeve;
the bent pipe semi-finished product comprises: the elbow pipe comprises an elbow pipe body, wherein a groove is formed in the outer side of the elbow pipe body along the circumferential direction, and an O-shaped ring is sleeved in the groove.
Wherein the elbow semi-finished product is provided with an alignment rib.
Specifically, the hose connector is installed into the elbow semi-finished product in a threaded connection mode.
Furthermore, the rivet includes a plurality ofly, and a plurality ofly the rivet is followed the circumference evenly distributed of adapter sleeve.
Furthermore, the first insulator and the second insulator are both plastic parts; the rubber pad, the O-shaped ring and the sealing pad are all made of silicone rubber pieces.
Furthermore, the rivet is made of stainless steel; the connecting sleeve and the adapter sleeve are both made of aluminum alloy materials; the bent pipe body is made of zinc alloy.
Furthermore, the clamping ring, the gear sleeve, the connecting sleeve clamping ring, the adapter sleeve clamping ring, the crown spring and the jack body are all made of copper alloy materials.
Furthermore, the outer wall of the hose connector is made of metal, and the inner wall of the hose connector is made of plastic.
Compared with the prior art, the antiskid valve connector of the utility model has the following advantages:
in the antiskid valve connector provided by the utility model, the plug semi-finished product is assembled in the clamping manner at the outer side of the jack component pressed with the cable, the plug semi-finished product is butted with the elbow semi-finished product through the retainer ring, the elbow semi-finished product is butted with the hose connector, the sealing gasket is arranged on the end surface between the hose connector and the elbow semi-finished product, and the hose connector is used for sleeving the corrugated hose; and, the jack assembly includes the jack body and assembles the crown spring in its inner hole, the outside of the first insulator equipped with gear sleeve in the semi-finished product of the plug is equipped with the second insulator, the outside of the second insulator is equipped with the adapter sleeve through the adapter sleeve rand, the outside of the adapter sleeve is equipped with the adapter sleeve through the adapter sleeve rand and the terminal surface between adapter sleeve and adapter sleeve is equipped with the rubber pad, the outside of the adapter sleeve is riveted with the rivet, the outside of the elbow body has the recess and the recess is fitted with the O-ring along the circumference in the semi-finished product of the elbow, therefore in the antiskid valve connector provided by the utility model, the jack assembly (contact) adopts the crown spring and contacts by the form that the gear sleeve blocks and can guarantee effectively the contact stability and the plug-pull force is little, adopt the rand to fix the semi-finished product of the plug (insulating part) and the semi-finished product of the elbow (housing part) and make the assembly simple and easy, the sealed rubber pad and O-ring and the sealed 7 can reach the protection grade of IP67 in order to prolong the product life effectively, through the fixing of the adapter sleeve retainer ring, the connecting sleeve retainer ring and the retainer ring, the phenomenon that looseness or falling off cannot occur between product parts in the high-speed running process of a train can be effectively guaranteed, so that the technical problems that the connector of the existing antiskid valve connector is poor in structural reliability when poor in contact easily and the matched corrugated pipe and hose connector are used are solved, and the anti-slip valve connector is simple and easy to assemble, high in structural strength, long in product service life and stable in electric transmission.
A high speed train, comprising: a slip valve connector as claimed in any one of the preceding claims.
Compared with the prior art, the high-speed train and the antiskid valve connector have the same advantages, and the description is omitted.
Drawings
Fig. 1 is an assembly schematic view of a non-slip valve connector according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an anti-skid valve connector provided in an embodiment of the present invention.
Reference numerals:
1-a cable; 2-a jack assembly; 21-a jack body; 22-crown spring;
3-semi-finished product of the plug; 30-gear sleeve; 31 — a first insulator; 32-a second insulator; 33-adapter sleeve collar; 34-an adapter sleeve; 35-connecting sleeve collar; 36-a connecting sleeve; 37-rubber pad; 38-rivets;
4-a collar; 5-bending a semi-finished product; 51-an elbow body; 52-O-shaped ring;
6-hose connection; 7-a sealing gasket; 8-corrugated hose.
Detailed Description
For convenience of understanding, the antiskid valve connector and the high-speed train using the antiskid valve connector provided by the embodiment of the invention are described in detail below with reference to the attached drawings of the specification.
An embodiment of the utility model provides an antiskid valve connector, as shown in fig. 1 and fig. 2, include: the plug assembly 2 is provided with a cable 1 in a pressing mode, the outer side of the plug assembly 2 is assembled with a plug semi-finished product 3 in a clamping mode, the plug semi-finished product 3 is in butt joint with a bent pipe semi-finished product 5 through a clamping ring 4, the bent pipe semi-finished product 5 is provided with a hose joint 6 in a butt joint mode, a sealing gasket 7 is arranged on the end face between the hose joint 6 and the bent pipe semi-finished product 5, and the hose joint 6 is used for being sleeved with a corrugated hose 8;
the socket assembly 2 includes: a jack body 21, and a crown spring 22 fitted in an inner hole of the jack body 21;
the plug semi-finished product 3 includes: the first insulator 31 provided with the gear sleeve 30, the second insulator 32 is arranged on the outer side of the first insulator 31, the adapter sleeve 34 is arranged on the outer side of the second insulator 32 through an adapter sleeve clamping ring 33, the connecting sleeve 36 is arranged on the outer side of the adapter sleeve 34 through a connecting sleeve clamping ring 35, a rubber pad 37 is arranged on the end face between the adapter sleeve 34 and the connecting sleeve 36, and a rivet 38 is riveted on the outer side of the connecting sleeve 36;
the bent pipe semi-finished product 5 comprises: the elbow body 51 has a groove along the circumferential direction on the outer side of the elbow body 51, and an O-ring 52 is fitted in the groove.
Compared with the prior art, the embodiment of the utility model provides an antiskid valve connector has following advantage:
in the anti-slip valve connector provided by the embodiment of the utility model, as the outer side joint of the jack component 2 pressed with the cable 1 is assembled with the semi-finished plug product 3, the semi-finished plug product 3 is butt-jointed with the semi-finished elbow product 5 through the retainer ring 4, the semi-finished elbow product 5 is butt-jointed with the hose connector 6, the end surface between the hose connector 6 and the semi-finished elbow product 5 is provided with the sealing gasket 7, and the hose connector 6 is used for sleeving the corrugated hose 8; moreover, the jack assembly 2 comprises a jack body 21 and a crown spring 22 assembled in the inner hole of the jack body 21, the second insulator 32 is arranged on the outer side of a first insulator 31 provided with a gear sleeve 30 in a semi-finished plug product 3, the adapter sleeve 34 is arranged on the outer side of the second insulator 32 through an adapter sleeve clamping ring 33, the connecting sleeve 36 is arranged on the outer side of the adapter sleeve 34 through a connecting sleeve clamping ring 35, the rubber pad 37 is arranged on the end surface between the adapter sleeve 34 and the connecting sleeve 36, the rivet 38 is riveted on the outer side of the connecting sleeve 36, and the outer side of a bent pipe body 51 in the bent pipe semi-finished product 5 is provided with a groove along the circumferential direction and is internally sleeved with an O-shaped ring 52, so that in the antiskid valve connector provided by the embodiment of the utility model, the jack assembly 2 (contact piece) adopts the crown spring 22 and is clamped by the gear sleeve 30 to contact, the contact can effectively ensure the contact stability and the small plugging force, and the clamping ring 4 is adopted to fix the semi-finished plug product 3 (insulating part) and the bent pipe semi-finished product 5 (shell part) to make the assembly simple, the sealing adopts the rubber pad 37, the O-shaped ring 52 and the sealing gasket 7 to reach the protection grade of IP67 so as to effectively prolong the service life of the product, the phenomenon of looseness or shedding can be effectively ensured to not occur between product parts in the high-speed running process of a train by fixing the adapter sleeve clamping ring 33, the adapter sleeve clamping ring 35 and the clamping ring 4, thereby not only solving the technical problems of poor structural reliability when the connector of the existing antiskid valve connector is in poor contact easily and the matched corrugated pipe and hose connector are used, but also being simple and easy to assemble, the structural strength is improved, the service life of the product is prolonged, and the electric transmission is stable.
The above-mentioned elbow semi-finished product 5 may also have an alignment rib, so that the alignment rib is more favorable for the butt joint of the plug semi-finished product 3 and the elbow semi-finished product 5.
Specifically, the hose connector 6 can be installed into the elbow pipe semi-finished product 5 in a threaded connection manner; i.e. the hose connector 6 has an external thread and the elbow semi-finished product 5 has an internal thread matching the external thread.
Further, the rivet 38 may include a plurality of rivets, and the plurality of rivets 38 may be preferably uniformly distributed along the circumferential direction of the connecting sleeve 36.
Furthermore, the first insulator 31 and the second insulator 32 may be plastic parts; silicone rubber may be used for the rubber pad 37, the O-ring 52, and the gasket 7.
The plastic part and the silicon rubber part can effectively prolong the service life of the product.
Further, the rivet 38 may be made of stainless steel; the connecting sleeve 36 and the adapter sleeve 34 can be made of aluminum alloy; the elbow main body 51 may be made of a zinc alloy.
The aluminum alloy material and the zinc alloy material can effectively improve the strength of the product.
Furthermore, the collar 4, the gear sleeve 30, the connecting sleeve collar 35, the adapter sleeve collar 33, the crown spring 22 and the socket body 21 can be made of copper alloy materials.
Further, the outer wall of the hose connector 6 may be made of metal, so as to have an external thread to better match the internal thread of the elbow body 51; the inner wall of the hose connector 6 can be made of plastic materials, so that the hose connector can be better in tight butt joint with the corrugated hose 8.
The following describes in detail an assembly process of a slide-proof valve connector according to an embodiment of the present invention with the aid of the drawings:
step S1, the cable 1 is installed into the jack assembly 2 and is pressed and connected; then the well pressed socket assembly 2 is arranged in the semi-finished plug product 3, and the socket assembly 2 is clamped by the gear sleeve 30;
step S2, the semi-finished product (the groove is aligned with the alignment rib direction of the bent pipe semi-finished product 5) in the step S1 is arranged in the bent pipe semi-finished product 5 and is fixed by a clamping ring 4; and then the hose joint 6 is arranged into the elbow pipe semi-finished product 5, and is screwed up by screw threads, and the assembly is finished.
Specifically, the assembly process of the socket assembly 2 is as follows: the crown spring 22 is fitted into the inner bore of the socket body 21.
Specifically, the assembly process of the plug semi-finished product 3 is as follows:
step S11, the gear sleeve 30 is arranged in the hole of the first insulator 31, the first insulator 31 is arranged in the second insulator 32, then the adapter sleeve 34 is arranged, and the adapter sleeve is fixed by the adapter sleeve clamping ring 33;
step S12, riveting the rivet 38 on the connecting sleeve 36, and then installing the rubber pad 37 on the connecting sleeve 36; finally, the semi-finished product of the step S11 is loaded into the connecting sleeve 36 and fixed by the connecting sleeve collar 35.
Specifically, the assembly process of the elbow semi-finished product 5 is as follows: the O-ring 52 is fitted into a groove in the elbow body 51.
Specifically, the assembly process of the hose coupler 6 is as follows: the sealing gasket 7 is sleeved on the bottom of the external thread of the hose connector 6.
The embodiment of the utility model provides a high-speed train is provided again, include: a slip valve connector as claimed in any one of the preceding claims.
The embodiment of the utility model provides an antiskid valve connector and use its high-speed train mainly has following several advantages:
firstly, the service life of the product is long;
secondly, electric transmission is stable;
thirdly, the product strength is high;
fourthly, the product structure is stable;
and fifthly, the product is convenient to assemble.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A non-slip valve connector, comprising: the plug assembly is provided with a cable in a pressing mode, a plug semi-finished product is assembled on the outer side of the plug assembly in a clamping mode, the plug semi-finished product is in butt joint with a bent pipe semi-finished product through a clamping ring, a hose joint is installed on the bent pipe semi-finished product in a butt joint mode, a sealing gasket is arranged on the end face between the hose joint and the bent pipe semi-finished product, and the hose joint is used for sleeving a corrugated hose;
the receptacle assembly includes: the spring clamp comprises a jack body and a crown spring assembled in an inner hole of the jack body;
the semi-finished plug comprises: the insulation structure comprises a first insulator provided with a gear sleeve, wherein a second insulator is arranged on the outer side of the first insulator, a switching sleeve is arranged on the outer side of the second insulator through a switching sleeve clamping ring, a connecting sleeve is arranged on the outer side of the switching sleeve through a connecting sleeve clamping ring, a rubber pad is arranged on the end face between the switching sleeve and the connecting sleeve, and a rivet is riveted on the outer side of the connecting sleeve;
the bent pipe semi-finished product comprises: the elbow pipe comprises an elbow pipe body, wherein a groove is formed in the outer side of the elbow pipe body along the circumferential direction, and an O-shaped ring is sleeved in the groove.
2. The antiskid valve connector of claim 1 wherein the elbow semi-finished product has alignment ribs.
3. The antiskid valve connector of claim 1 wherein said hose fitting is threaded into said elbow semi-finished product.
4. The connector of claim 1, wherein the rivet is provided in a plurality, and the rivets are uniformly distributed along the circumferential direction of the connecting sleeve.
5. The connector of claim 1, wherein the first insulator and the second insulator are each plastic parts;
the rubber pad, the O-shaped ring and the sealing pad are all made of silicone rubber pieces.
6. The connector of claim 1, wherein the rivet is made of stainless steel;
the connecting sleeve and the adapter sleeve are both made of aluminum alloy materials;
the bent pipe body is made of zinc alloy.
7. The connector of claim 1, wherein the collar, the gear sleeve, the connecting sleeve collar, the adapter sleeve collar, the crown spring, and the socket body are all made of copper alloy material.
8. The connector of claim 1, wherein the hose connector has an outer wall made of metal and an inner wall made of plastic.
9. A high speed train, comprising: a non-slip valve connector as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023289912.5U CN214797905U (en) | 2020-12-31 | 2020-12-31 | Antiskid valve connector and high-speed train using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023289912.5U CN214797905U (en) | 2020-12-31 | 2020-12-31 | Antiskid valve connector and high-speed train using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214797905U true CN214797905U (en) | 2021-11-19 |
Family
ID=78742804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023289912.5U Active CN214797905U (en) | 2020-12-31 | 2020-12-31 | Antiskid valve connector and high-speed train using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214797905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112864698A (en) * | 2020-12-31 | 2021-05-28 | 深圳市中车业成实业有限公司 | Antiskid valve connector and high-speed train using same |
-
2020
- 2020-12-31 CN CN202023289912.5U patent/CN214797905U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112864698A (en) * | 2020-12-31 | 2021-05-28 | 深圳市中车业成实业有限公司 | Antiskid valve connector and high-speed train using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105680263B (en) | The rapid abutting joint head of ground wire | |
| CN112576839A (en) | Quick-insertion locking joint | |
| CN213753292U (en) | Elbow connector for energy storage system | |
| CN101965665A (en) | Improved electrical connection | |
| CN101834386A (en) | Solar connector | |
| CN214797905U (en) | Antiskid valve connector and high-speed train using same | |
| CN103904463A (en) | Detachable large-current connector | |
| CN111403959A (en) | High-pressure self-centering blind-mating floating connector and assembling method thereof | |
| CN103682786A (en) | Cable connector of photovoltaic system | |
| CN210806074U (en) | Aviation connector convenient to plug | |
| CN112467455A (en) | High waterproof plastic watertight connector | |
| CN106410509A (en) | New energy vehicle large-current and high-voltage connector | |
| CN112864698A (en) | Antiskid valve connector and high-speed train using same | |
| CN220021624U (en) | Cable connector | |
| CN210623883U (en) | Quick-insertion locking joint | |
| CN206041062U (en) | An electrical connector housing assembly and an electrical connector using the housing assembly | |
| CN105958249B (en) | A kind of electric connector | |
| CN207218168U (en) | A metal cable waterproof joint with a circular spring | |
| CN209860198U (en) | Crimping type circular connector with reliable and quick connection and separation | |
| CN201118018Y (en) | Plug jack connector | |
| CN205178465U (en) | Explosion -proof flexible connecting pipe | |
| CN211046448U (en) | Sealing sleeve | |
| CN209822988U (en) | High-reliability electric connector tail accessory | |
| CN210016054U (en) | Quick coupling of generator car | |
| CN105958254B (en) | Electric connector housing component and the electric connector using the housing unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 8052, Yuanshan international road, 100d2, Zhongshan District, Guangdong Province Patentee after: Shenzhen Yecheng Industrial Co.,Ltd. Address before: No. 8052, Yuanshan international road, 100d2, Zhongshan District, Guangdong Province Patentee before: SHENZHEN ZHONGCHE YECHENG INDUSTRIAL Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |