GB2291737A - Conveying battery packs to a test station and delivery after testing either to a conveyor for further processing or to a reject conveyor - Google Patents
Conveying battery packs to a test station and delivery after testing either to a conveyor for further processing or to a reject conveyor Download PDFInfo
- Publication number
- GB2291737A GB2291737A GB9515145A GB9515145A GB2291737A GB 2291737 A GB2291737 A GB 2291737A GB 9515145 A GB9515145 A GB 9515145A GB 9515145 A GB9515145 A GB 9515145A GB 2291737 A GB2291737 A GB 2291737A
- Authority
- GB
- United Kingdom
- Prior art keywords
- battery pack
- test station
- test
- conveyor
- station
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Specific Conveyance Elements (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
A pair of battery pack feed conveyors (3) are mounted spaced-apart on the support frame (2) for delivery of battery packs (10) to associated test stations (4) having a clamp to grip a battery pack (10) in response to sensed location at the test station and a test probe engageable with the battery pack (10) to run a test sequence on the battery pack (10), and a pusher (30) is operable to deliver the battery pack (10) onto a turntable (35) after disengagement and retraction of the probe and release of the clamp, the turntable (35) being rotatable to align the battery pack (10) in a desired orientation with either an outlet conveyor (6) for further processing or to a reject conveyor (7) for delivery to a reject station depending on the test result. A turntable pusher (38) is operable to discharge the battery pack (10) from the turntable (35) to the selected conveyor (6, 7). <IMAGE>
Description
"A Battery Pack Testing Apparatus This invention relates to a product testing apparatus.
Test rigs are available for testing battery packs which are taken manually from a production line and mounted in the test rig, a test is then run and the battery pack is removed and delivered for further processing such as labelling and packing or delivered to a reject bin. A problem with existing manual testing systems is that they slow down the battery production process. Further, operators must be available to manually test each unit, thus adding to the production cost.
The present invention is directed towards overcoming these problems.
According to the invention there is provided a battery pack testing apparatus comprising:
conveyor means for delivery of a battery pack
in a desired orientation to a test station,
sensing means to sense location of a battery
pack at the test station,
clamp means operable in response to sensed
location of a battery pack at the test
station to engage and hold the battery pack
at the test station,
testing means comprising one or more probes
mounted at the test station for movement
between a retracted disengaged position and
an engaged battery pack testing position for
engagement with a battery pack located at the
test station,
each probe being connected to a controller
which is operable in response to sensed
location of a battery pack at the test
station to move the probe into the engaged
position, run a preset desirable test
sequence for the battery pack and compare the
result of said test sequence with a preset
desired result and then move the probe to a
disengaged position and release the clamp
means,
discharge means for delivering a battery pack
from the test station to a further processing
station or to a reject station in response to
a positive or negative result respectively of
said test sequence.
In a preferred embodiment of the invention the means comprises : - a pusher operable to engage and push a
battery pack away from the test station,
a turntable adjacent the test station, the
turntable rotatable between a battery pack
receiving position for reception of a battery
pack delivered from the test station by the
pusher and a battery pack delivery position
for alignment of a battery pack in a desired
orientation with an outlet conveyor or a
reject conveyor, the outlet conveyor for
delivery of the battery pack to the further
processing station and the reject conveyor
for delivery of the battery pack to the
reject station,
a turntable pusher operable in response to a
positive or negative result of said test
sequence to engage and push a battery pack
from the turntable onto the outlet conveyor
or the reject conveyor respectively.
In a particularly preferred embodiment each probe is mounted on a carriage which is movable on a support frame to position the probe relative to the test station, a quick release lock being provided to releasably lock the carriage on the support frame.
Preferably the carriage is slidably mounted on the support frame.
In another embodiment the clamp comprises a ram mounted on the carriage, the ram having a battery pack engaging head movable between a retracted released position and an extended clamping position for engagement with a battery pack located at the test station.
In a further embodiment the pusher at the test station has a battery pack engaging head movable across the test station to discharge a battery pack from the test station onto the turntable, the head having a stop arm movable across an inlet of the test station to close the inlet to the test station while a battery pack is being discharged from the test station.
Conveniently each probe is mounted by means of ram on the carriage for movement between the disengaged position and the engaged position.
In another embodiment the sensing means comprises an optoelectric fibre sensor.
The invention will be more clearly understood from the following description of an embodiment thereof, given by way of example only, with reference to the accompanying drawings, in which:
Fig. 1 is a plan view of a product testing apparatus
according to the invention;
Fig. 2 is a side elevational view of the apparatus;
Fig. 3 is an end elevational view of the apparatus;
Fig. 4 is an elevational view of a frame forming
portion of the apparatus;
Fig. 5 is a plan view of the frame; and
Fig. 6 is an electrical circuit diagram for the
apparatus.
Referring to the drawings, there is illustrated a battery pack testing apparatus according to the invention indicated generally by the reference numeral 1. The apparatus 1 has a support frame 2. A pair of battery pack feed conveyors 3 are mounted spaced-apart on the support frame 2, each for delivery of battery packs to associated test stations 4. At each test station 4 one or more test operations are carried out on each battery pack in turn which is then delivered by discharge means 5 to either an outlet conveyor 6 for further processing such as labelling or to a reject conveyor 7 for delivery to a reject station.
The feed conveyor 3 comprises an endless belt 8 mounted around rollers and driven by a drive motor (not shown).
Upstanding side walls 5 are provided at each side of the belt 8 to guide battery packs 10 in a sideways orientation towards the test station 4. The battery packs 10 are aligned in sideways orientation as they have sloped front and rear edges which would ride over each other if delivered the conveyor 3 in a longitudinal orientation.
Due to the width between the sidewalls 5 and the length of the battery packs 10, the battery packs cannot turn on the conveyor 3. The battery packs 10 travel to an outlet end 11 of the conveyor 3 where they queue side by side for delivery to the test station 4. If the test station 4 is vacant a battery pack 10 enters the test station 4. If a battery pack 10 is already in the test station 4 when an oncoming battery pack 10 reaches the outlet end 11 of the conveyor 3 it abuts and is stopped by the battery pack 10 already in the test station 4.
The test station 4 has a nest 14 for reception of a battery pack 10. The nest 14 comprises a platform 15 with an upstanding stop-plate 16 at a rear end of the platform 15. A clamp is provided for retaining a battery pack in the nest 14 and in this case is provided by a clamp ram 18 mounted above the nest 14 and having a movable arm 19 with a product engaging head 20 which is movable vertically between an extended engaged position pressing the battery pack 10 against the platform 15 and a retracted related position raised above the platform 15.
An opto-electric sensor (not shown) is provided to detect location of a battery pack on the platform 15.
A test probe assembly 22 is also mounted above the nest 14. The test probe assembly 22 has a probe head 23 vertically movable by means of a ram 24 between a retracted disengaged position and an engaged position engaging a battery pack 10 in the nest 14. The ram 24 is mounted on a carriage 25 which in turn is slidably mounted on the support frame 2 for vertical movement on the support frame. A quick release locking bolt (not shown) is provided on the carriage 25 engagable with the frame 2 to releasably lock the carriage 25 on the frame 2.
The probe head 23 and the opto-electric location sensor are connected to a controller (not shown).
Mounted adjacent each test station 4 is a pusher ram 30 having a pusher head 31 movable across the platform 15 to push a battery pack 10 from the platform 15 onto an adjacent turntable 35. The pusher head 31 is L-shaped having a front end 32 and a rearwardly extending stop arm 33. The width of the front end 32 is such that as the pusher head 31 moves across the platform 15 the stop arm engages and holds a battery pack 10 queueing at the outlet end 11 of the conveyor 3 preventing entry to the test station 4 while the tested battery pack 10 is being discharged onto the turntable 35. The turntable 35 has a channel section bed 36 for reception of a battery pack 10.
The turntable 35 is also operably connected to the controller. The turntable 35 is rotatable to align an inlet of the turntable 35 with an outlet of the nest 14.
Rotation of the turntable 35 through 90O aligns an outlet of the turntable 35 with either the conveyor 6 or the reject conveyor 7. A turntable pusher ram 38 having a movable head 39 is operable to engage and push a battery pack 10 from the turntable 35 onto to one of the conveyors 6, 7.
In use, battery packs 10 are delivered along the conveyor 3 to the test station 4. Upon entering the nest 14, location of a battery pack 10 in the nest 14 is detected by the location sensor and the controller then operates the clamp ram 18 to firmly clamp the battery pack 10 in the nest 14. Then the ram 24 is operated to engage the probe 23 with the battery pack 10 and the controller runs a test sequence on the battery pack 10 to check if it is functioning correctly.
If the battery pack 10 passes the test the probe 23 and clamp ram 18 are retracted and with the turntable 35 aligned with an outlet of the nest 14 the pusher ram 30 pushes the battery pack 10 onto the turntable 35. The turntable 35 is then swivelled through 90O and the ram 38 operated to push the battery pack 10 onto the conveyor 6 for delivery to a labelling station.
Should the battery pack fail the test then prior to rotating the turntable 35 into alignment with the nest 14 the head 39 of the ram 38 is extended. Subsequent to picking up the battery pack 10, the turntable 35 is then rotated into alignment with the reject conveyor 7 and upon retraction of the head 39, the battery pack 10 is discharged onto the reject conveyor 7 for delivery to a reject station.
It will be appreciated that the present invention allows a product, in particular a battery pack, to be readily easily and quickly tested. Conveniently the testing apparatus can be mounted at an outlet end of a battery pack production line to test battery packs produced.
The invention is not limited to the embodiment hereinbefore described which may be varied in both construction and detail.
Claims (9)
1. A battery pack testing apparatus comprising:
conveyor means for delivery of a battery pack
in a desired orientation to a test station,
sensing means to sense location of a battery
pack at the test station,
clamp means operable in response to sensed
location of a battery pack at the test
station to engage and hold the battery pack
at the test station,
testing means comprising one or more probes
mounted at the test station for movement
between a retracted disengaged position and
an engaged battery pack testing position for
engagement with a battery pack located at the
test station,
each probe being connected to a controller
which is operable in response to sensed
location of a battery pack at the test
station to move the probe into the engaged
position, run a preset desirable test
sequence for the battery pack and compare the
result of said test sequence with a preset
desired result and then move the probe to a
disengaged position and release the clamp
means,
discharge means for delivering a battery pack
from the test station to a further processing
station or to a reject station in response to
a positive or negative result respectively of
said test sequence.
2. Apparatus as claimed in claim 1 wherein the
discharge means comprises:
a pusher operable to engage and push a
battery pack away from the test station,
a turntable adjacent the test station, the
turntable rotatable between a battery pack
receiving position for reception of a battery
pack delivered from the test station by the
pusher and a battery pack delivery position
for alignment of a battery pack in a desired
orientation with an outlet conveyor or a
reject conveyor, the outlet conveyor for
delivery of the battery pack to the further
processing station and the reject conveyor
for delivery of the battery pack to the
reject station,
a turntable pusher operable in response to a
positive or negative result of said test
sequence to engage and push a battery pack
from the turntable onto the outlet conveyor
or the reject conveyor respectively.
3. Apparatus as claimed in claim 1 or claim 2 wherein
each probe is mounted on a carriage which is
movable on-a support frame to position the probe
relative to the test station, a quick release lock
being provided to releasably lock the carriage on
the support frame.
4. Apparatus as claimed in claim 3 wherein the
carriage is slidably mounted on the support frame.
5. Apparatus as claimed in claim 3 or claim 4 wherein
the clamp comprises a ram mounted on the carriage,
the ram having a battery pack engaging head
movable between a retracted released position and
an extended clamping position for engagement with
a battery pack located at the test station.
6. Apparatus as claimed in any of claims 2 to 5
wherein the pusher at the test station has a
battery pack engaging head movable across the test
station to discharge a battery pack from the test
station onto the turntable, the head having a stop
arm movable across an inlet of the test station to
close the inlet to the test station while a
battery pack is being discharged from the test
station.
7. Apparatus as claimed in any preceding claim
wherein each probe is mounted by means of a ram on
the carriage for movement between the disengaged
position and the engaged position.
8. Apparatus as claimed in any preceding claim
wherein the sensing means comprises an opto
electric fibre sensor.
9. A battery pack testing apparatus substantially as
hereinbefore described with reference to the
accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IE940589A IES940589A2 (en) | 1994-07-22 | 1994-07-22 | A product testing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9515145D0 GB9515145D0 (en) | 1995-09-20 |
| GB2291737A true GB2291737A (en) | 1996-01-31 |
Family
ID=11040459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9515145A Withdrawn GB2291737A (en) | 1994-07-22 | 1995-07-24 | Conveying battery packs to a test station and delivery after testing either to a conveyor for further processing or to a reject conveyor |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2291737A (en) |
| IE (1) | IES940589A2 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2328287A (en) * | 1997-06-17 | 1999-02-17 | Samsung Electronics Co Ltd | Voltage testing apparatus |
| WO2000003255A2 (en) * | 1998-07-11 | 2000-01-20 | Dual-M-Tech Ag | Device without set-up kit for the targeted moving of electronic components |
| WO2012082922A1 (en) | 2010-12-14 | 2012-06-21 | Abb Technology Ag | Automatic checking, validation, and post-processing of a battery object |
| EP2559096A2 (en) * | 2010-04-15 | 2013-02-20 | LG Chem, Ltd. | Testing system and method for testing a battery cell |
| CN102981126A (en) * | 2012-11-30 | 2013-03-20 | 苏州光麒科技有限公司 | Battery detecting machine |
| CN103207324A (en) * | 2012-01-11 | 2013-07-17 | 东莞市嘉龙海杰电子科技有限公司 | Device and method for testing high pressure |
| US8716981B2 (en) | 2011-11-11 | 2014-05-06 | Lg Chem, Ltd. | System and method for cooling and cycling a battery pack |
| US8816692B2 (en) | 2011-12-01 | 2014-08-26 | Lg Chem, Ltd. | Test system for a battery module |
| US9063179B2 (en) | 2012-09-26 | 2015-06-23 | Lg Chem, Ltd. | System and method for determining an isolation resistance of a battery pack disposed on a vehicle chassis |
| US9164151B2 (en) | 2013-08-07 | 2015-10-20 | Lg Chem, Ltd. | System and method for determining isolation resistances of a battery pack |
| CN111504390A (en) * | 2020-05-30 | 2020-08-07 | 东莞市爱康电子科技有限公司 | Battery comprehensive detection equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849005A (en) * | 2022-12-29 | 2023-03-28 | 苏州乾鸣半导体设备有限公司 | Synchronous feeding and discharging equipment |
| CN117250535B (en) * | 2023-11-17 | 2024-02-09 | 天能集团江苏科技有限公司 | Open-circuit voltage measuring device for storage battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4204161A (en) * | 1978-03-01 | 1980-05-20 | General Electric Company | Apparatus for rapidly testing electrochemical cells |
| US4214204A (en) * | 1978-04-11 | 1980-07-22 | General Battery Corporation | High rate, battery testing apparatus and method |
| US4377786A (en) * | 1980-08-06 | 1983-03-22 | Radco Industries, Inc. | Battery testing apparatus |
| US4451791A (en) * | 1982-03-17 | 1984-05-29 | General Battery Corporation | Method and apparatus for electrically testing elements of multi-cell batteries |
-
1994
- 1994-07-22 IE IE940589A patent/IES940589A2/en not_active IP Right Cessation
-
1995
- 1995-07-24 GB GB9515145A patent/GB2291737A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4204161A (en) * | 1978-03-01 | 1980-05-20 | General Electric Company | Apparatus for rapidly testing electrochemical cells |
| US4214204A (en) * | 1978-04-11 | 1980-07-22 | General Battery Corporation | High rate, battery testing apparatus and method |
| US4377786A (en) * | 1980-08-06 | 1983-03-22 | Radco Industries, Inc. | Battery testing apparatus |
| US4451791A (en) * | 1982-03-17 | 1984-05-29 | General Battery Corporation | Method and apparatus for electrically testing elements of multi-cell batteries |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2328287B (en) * | 1997-06-17 | 2000-02-16 | Samsung Electronics Co Ltd | Voltage testing apparatus and method |
| GB2328287A (en) * | 1997-06-17 | 1999-02-17 | Samsung Electronics Co Ltd | Voltage testing apparatus |
| WO2000003255A2 (en) * | 1998-07-11 | 2000-01-20 | Dual-M-Tech Ag | Device without set-up kit for the targeted moving of electronic components |
| WO2000003255A3 (en) * | 1998-07-11 | 2000-03-30 | Dual M Tech Ag | Device without set-up kit for the targeted moving of electronic components |
| EP2559096A4 (en) * | 2010-04-15 | 2013-11-06 | Lg Chemical Ltd | Testing system and method for testing a battery cell |
| US8736273B2 (en) | 2010-04-15 | 2014-05-27 | Lg Chem, Ltd. | Testing system and method for testing a battery cell |
| EP2559096A2 (en) * | 2010-04-15 | 2013-02-20 | LG Chem, Ltd. | Testing system and method for testing a battery cell |
| KR20140020845A (en) * | 2010-12-14 | 2014-02-19 | 에이비비 테크놀로지 아게 | Automatic checking, validation, and post-processing of a battery object |
| CN103339514B (en) * | 2010-12-14 | 2015-12-02 | Abb技术有限公司 | The self-verifying of battery object, checking and aftertreatment |
| KR101939966B1 (en) | 2010-12-14 | 2019-01-18 | 에이비비 슈바이쯔 아게 | Automatic checking, validation, and post-processing of a battery object |
| US9811060B2 (en) | 2010-12-14 | 2017-11-07 | Abb Schweiz Ag | Automatic checking, validation, and post-processing of a battery object |
| WO2012082922A1 (en) | 2010-12-14 | 2012-06-21 | Abb Technology Ag | Automatic checking, validation, and post-processing of a battery object |
| CN103339514A (en) * | 2010-12-14 | 2013-10-02 | Abb技术有限公司 | Automatic checking, validation, and post-processing of a battery object |
| US8716981B2 (en) | 2011-11-11 | 2014-05-06 | Lg Chem, Ltd. | System and method for cooling and cycling a battery pack |
| US8816692B2 (en) | 2011-12-01 | 2014-08-26 | Lg Chem, Ltd. | Test system for a battery module |
| CN103207324B (en) * | 2012-01-11 | 2016-03-30 | 东莞市嘉龙海杰电子科技有限公司 | A kind of high-voltage testing device and voltage test method |
| CN103207324A (en) * | 2012-01-11 | 2013-07-17 | 东莞市嘉龙海杰电子科技有限公司 | Device and method for testing high pressure |
| US9063179B2 (en) | 2012-09-26 | 2015-06-23 | Lg Chem, Ltd. | System and method for determining an isolation resistance of a battery pack disposed on a vehicle chassis |
| CN102981126A (en) * | 2012-11-30 | 2013-03-20 | 苏州光麒科技有限公司 | Battery detecting machine |
| US9164151B2 (en) | 2013-08-07 | 2015-10-20 | Lg Chem, Ltd. | System and method for determining isolation resistances of a battery pack |
| CN111504390A (en) * | 2020-05-30 | 2020-08-07 | 东莞市爱康电子科技有限公司 | Battery comprehensive detection equipment |
| CN111504390B (en) * | 2020-05-30 | 2021-04-23 | 东莞市爱康电子科技有限公司 | Battery comprehensive detection equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| IES65600B2 (en) | 1995-11-01 |
| GB9515145D0 (en) | 1995-09-20 |
| IES940589A2 (en) | 1995-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |