CA1107816A - Continuous production of multi cell batteries - Google Patents
Continuous production of multi cell batteriesInfo
- Publication number
- CA1107816A CA1107816A CA309,810A CA309810A CA1107816A CA 1107816 A CA1107816 A CA 1107816A CA 309810 A CA309810 A CA 309810A CA 1107816 A CA1107816 A CA 1107816A
- Authority
- CA
- Canada
- Prior art keywords
- electrode
- battery
- casing
- strip
- cell
- 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.)
- Expired
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
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
- H01M10/125—Cells or batteries with wound or folded electrodes
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Fuel Cell (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Abstract of the Disclosure A multi-cell lead storage-battery is fitted with uniformly pasted strip-electrodes made of endless material, in such a manner that the electrodes in each cell form zig-zag-folded upright packs, and the full width of a given strip-electrode, with its support-frame freed from active compound and extending beyond the cell-partition, constitutes the electrical connection to the next cell, the block-casing closure being formed by one lateral wall. The forming of the strip-electrodes takes place after the lateral wall has been fitted by means of the mirror-welding process in the fully assembled battery. The battery of this invention is more easily assembled than know batteries where electrode plates are packaged in stacks and then inserted into upwardly open block casings.
Description
The invention relates to a multi-cell lead storage battery with electrode stacks positioned within a block casing. In particular, -the invention relates to a battery intended for vehicular use, e.g. as starter battery.
In the storage battery technology, most advances have ; preferentially benefitted the final product. For example~ most recently ; it has proven possible to achieve considerable product-related advances and quality improvements through development of a low-maintenance lead battery~ or through the introduction of a lightweight synthetic casing for starter batteries in place of the previously conventional hard rubber casing.
In contrast, the manufacturing process still remains composed largely of the conventional manufacturing stages, such as grid casting, pasting, forming, assembling, and insertion of the plate stacks, etc.
Despite machine assistance~ many process steps must still be performed by hand, and even on individual electrodes, so that the manufacturing process has generally remained discontinuous, thereby placing a ceiling upon increases in productivity.
More rational manufacturing techniques have found application only for the so-called smaIl batteries~ which~ in any event, were more readily adapted for mass production. This includes the frequently utilized equipping of both small alkaline batteries and s~aIl lead battery cells with wrapped electrode stacks. In these, a positive and a negative electrode strip are wrapped into an electrode spiral ~ith interposition of a s~parator, and then inserted into the cell container.
' , 78.16 The edges of the electrodes are provided with connectors leading to the out-side of the container. Because of the complexity of the connector lead-throughs, such wrapped electrode stacks are generally used only for single-cell batteries.
For electrode plates, too, there must not be overlooked a definite trend toward replacement of the heavy mass supports, i.e. the cast lead grids, by means of lighter structural frameworks, such as expanded metal. Moreover, expanded metal can be manufactured as a continuous strip.
However, in and of themselves, electrode plates which are manufac-tured using expanded metal, and which are packaged in stacks and then are inserted in conventional manner into the upwardly open block casings that must then be covered in conventional manner, do not represent a breakthrough in progress toward smooth continuous work flow.
Accordingly, it is a purpose of this invention to provide a lead storage battery which is more suitable than heretofore for rational mass production. It is another purpose to provide the manufacturing process for such a storage battery.
These and other objects which will appear are accomplished in accordance with the invention by effecting the block casing closure by means of a side wall.
This invention relates to a multi-cell storage battery having electrode stacks comprising positive and negative strip electrodes with intervening separator folded in a zig-zag configuration into a package, wherein the adjacent individual cells are electrically connected via an electrode support frame of one of the strip electrodes extending by means of a large-surface portion across a cell separating partition, and the block casing closure is formed by a side wall perpendicular to the plane of the electrodes.
, :
`:
This invention further relates to the method of manufacturing, which method comprises introducing the electrode stacks made of strip elec-trodes folded in zig-zag configuration into a multicell block casing through openings in the side of the casing, and closing this side of the block casing in liquid-tight manner by welding a side wall to said block casing.
In a preferred embodiment of the storage battery embodying the invention, each plate stack forming part of a cell consists of positive and negative strip electrodes with interposed strip-like separators which have been folded into a package with zig-zag configuration. Both the connection of the cells to each other as well as the external electrical connection is provided by means of large-surface portions of one of the - 2a -F37~6 two electrode support frames extending across the cell separating partitions or the casing walls. These portions are positioned in the plane of closure of the block casing, which is closed in liquid-tight manner by means of a side wall, using mirror welding.
Further details concerning the invention and the process embodying the invention are presented in what follows and in the accompanying single figure of drawing.
This drawing schematically illustrates a two-cell storage batterybaock casing 1, lying on its side, with an electrode stack according to the invention~ which consists of strip electrode 12~ strip electrode 13 and the interposed separator strip 4 with ribs or lands 5. These are folded in zig-zag configuration into packages and~ so packaged, are in-troduced into the storage battery cells from the side. The folded edges 6 of the electrode packages are perpendicular to the bottom surface of the storage battery, so that gas bubbles can rise unimpeded between the electrodes.
In accordance with the invention, both the connection of the cells to each other and also the external connection takes place by means of large-surface portion 9 of the electrode support frame of one of the strip electrodes, extending across the cell separating partition 7 or the outer wall 8, respectively, of the block casing. For example, in the drawing the external connections (16) and (17) are formed by the support frame of the strip electrode (2), whereas the connection between the cells is effected by the support frame (3) of the strip electrode (13).
The respective electrode strip may also be wrapped at its end over a lead rod (not shown)~ and may be connected thereto in electrically conductive manner, e.g. by pressure welding. Starting from this rod, a pole lead-through can then be provided in known manner.
The counter electrode and separator are interrupted in the connecting region between cells, as indicated by dotted lines in the drawing.
To manufacture a zig-zag folded electrode package according to the invention for a multi-cell storage battery, one preferably starts with electrode support frames 2, 3 which are wound as continuous strips upon spools 10~ 11. They take the form of conventional lead support frames ; 10 or they may also consist of lead expanded metal. If desired~ each electrode strip may have a land extending along its edge. Into these electrode support frames, a unitary mass is pasted as the active material. This is advantageous because the finished strip electrodes alternate in ~ polarity from cell to cell during battery operation. Thus~ the electrode - support frames 2, 3 are transformed into strip eaectrodes 12, 13.
With interposition~ of a separator strip 4, which is highly por-ous but largely insensitive to pressure, and which is unrolled from spool 14, the electrode strips are then brought together while passing over turn-- about roller 15, after which they can be folded.
Just before the folding procedure, there will be excized over predetermined distances those portions 9 from the strip electrodes (12), (13) and from the separator (4) which after insertion into the block casing would extend across one of the cell-separating partitions (7) or (8) where they would be superfluous. Removal of the active mass can be accomplished by air blast~ by rinsing, or if desired, already during the pasting process by leaving an appropriate portion of the electrode frame free of pasted mass.
~7816 The same measures!may of course, be taken with respect to the strip portions which extend across the end walls 8 of the block casing after insertion, so that here, too, only the support frame 2 of strip electrode 12 remains to provide the external electrical connections 16, 17 beyond end walls 8.
To complete the storage batteryl~ it then only remains to close the casing. Surprisingly~ this can be done ~ery simply by welding on a side wall 18~ by means of the known mirror wehding process. ~ue to the heating effect~ the synthetic material of the cell separating partition 7 and of the end walls 8 of the casing~ as well as of the mating extensions 19 and 20 in side wall 18, penetrates through the framework of the electrode, so that a strong and liquid-tight joint results. Before this mirror welding of a lid is performed, it may be desirable to urge the electrode frame against the separating partition by means of a ram and, if desired, to also provide additional heating during that process step in order to achieve a certain penetration of the electrode frame into the edge of cell separating partition 7 even before the ultimate mirror welding of the lid. The top of the block casing, which coincides with the plane of the drawing, is then provided with the conventional filler and gas escape apertures.
Also paraIlel to the plane of the drawing is the plane of the electrolyte surface, whereas the closure plane designated by the phantom lines AA is perpendicular to the electrolyte surface.
The necessary terminal post connections for such a storage battery may be formed inside or outside the cell from the protruding electrode frame portion, by pressing on and, if desired, welding on of a terminal post.
1~78~6 It is apparent that the conventional manufacturing steps of curing, forming, preserving (e g. by treatment with boric acid) may be accomplished outside the block casing. For the continuousness of the manufacturing process it is particularly desirable that these steps be performed within the block casing itself, after insertion of the electrode packages therein.
The advantage of the storage battery which has been described is that its manufacturing process exhibits a particularly desirable material flow.
, '-' :' ~`
, :
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.
~;
, :
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. ~
:. :
--6_ - : ~ . .
- ' : ' ~ ',, -''. ' ~ :
~':' . ' '
In the storage battery technology, most advances have ; preferentially benefitted the final product. For example~ most recently ; it has proven possible to achieve considerable product-related advances and quality improvements through development of a low-maintenance lead battery~ or through the introduction of a lightweight synthetic casing for starter batteries in place of the previously conventional hard rubber casing.
In contrast, the manufacturing process still remains composed largely of the conventional manufacturing stages, such as grid casting, pasting, forming, assembling, and insertion of the plate stacks, etc.
Despite machine assistance~ many process steps must still be performed by hand, and even on individual electrodes, so that the manufacturing process has generally remained discontinuous, thereby placing a ceiling upon increases in productivity.
More rational manufacturing techniques have found application only for the so-called smaIl batteries~ which~ in any event, were more readily adapted for mass production. This includes the frequently utilized equipping of both small alkaline batteries and s~aIl lead battery cells with wrapped electrode stacks. In these, a positive and a negative electrode strip are wrapped into an electrode spiral ~ith interposition of a s~parator, and then inserted into the cell container.
' , 78.16 The edges of the electrodes are provided with connectors leading to the out-side of the container. Because of the complexity of the connector lead-throughs, such wrapped electrode stacks are generally used only for single-cell batteries.
For electrode plates, too, there must not be overlooked a definite trend toward replacement of the heavy mass supports, i.e. the cast lead grids, by means of lighter structural frameworks, such as expanded metal. Moreover, expanded metal can be manufactured as a continuous strip.
However, in and of themselves, electrode plates which are manufac-tured using expanded metal, and which are packaged in stacks and then are inserted in conventional manner into the upwardly open block casings that must then be covered in conventional manner, do not represent a breakthrough in progress toward smooth continuous work flow.
Accordingly, it is a purpose of this invention to provide a lead storage battery which is more suitable than heretofore for rational mass production. It is another purpose to provide the manufacturing process for such a storage battery.
These and other objects which will appear are accomplished in accordance with the invention by effecting the block casing closure by means of a side wall.
This invention relates to a multi-cell storage battery having electrode stacks comprising positive and negative strip electrodes with intervening separator folded in a zig-zag configuration into a package, wherein the adjacent individual cells are electrically connected via an electrode support frame of one of the strip electrodes extending by means of a large-surface portion across a cell separating partition, and the block casing closure is formed by a side wall perpendicular to the plane of the electrodes.
, :
`:
This invention further relates to the method of manufacturing, which method comprises introducing the electrode stacks made of strip elec-trodes folded in zig-zag configuration into a multicell block casing through openings in the side of the casing, and closing this side of the block casing in liquid-tight manner by welding a side wall to said block casing.
In a preferred embodiment of the storage battery embodying the invention, each plate stack forming part of a cell consists of positive and negative strip electrodes with interposed strip-like separators which have been folded into a package with zig-zag configuration. Both the connection of the cells to each other as well as the external electrical connection is provided by means of large-surface portions of one of the - 2a -F37~6 two electrode support frames extending across the cell separating partitions or the casing walls. These portions are positioned in the plane of closure of the block casing, which is closed in liquid-tight manner by means of a side wall, using mirror welding.
Further details concerning the invention and the process embodying the invention are presented in what follows and in the accompanying single figure of drawing.
This drawing schematically illustrates a two-cell storage batterybaock casing 1, lying on its side, with an electrode stack according to the invention~ which consists of strip electrode 12~ strip electrode 13 and the interposed separator strip 4 with ribs or lands 5. These are folded in zig-zag configuration into packages and~ so packaged, are in-troduced into the storage battery cells from the side. The folded edges 6 of the electrode packages are perpendicular to the bottom surface of the storage battery, so that gas bubbles can rise unimpeded between the electrodes.
In accordance with the invention, both the connection of the cells to each other and also the external connection takes place by means of large-surface portion 9 of the electrode support frame of one of the strip electrodes, extending across the cell separating partition 7 or the outer wall 8, respectively, of the block casing. For example, in the drawing the external connections (16) and (17) are formed by the support frame of the strip electrode (2), whereas the connection between the cells is effected by the support frame (3) of the strip electrode (13).
The respective electrode strip may also be wrapped at its end over a lead rod (not shown)~ and may be connected thereto in electrically conductive manner, e.g. by pressure welding. Starting from this rod, a pole lead-through can then be provided in known manner.
The counter electrode and separator are interrupted in the connecting region between cells, as indicated by dotted lines in the drawing.
To manufacture a zig-zag folded electrode package according to the invention for a multi-cell storage battery, one preferably starts with electrode support frames 2, 3 which are wound as continuous strips upon spools 10~ 11. They take the form of conventional lead support frames ; 10 or they may also consist of lead expanded metal. If desired~ each electrode strip may have a land extending along its edge. Into these electrode support frames, a unitary mass is pasted as the active material. This is advantageous because the finished strip electrodes alternate in ~ polarity from cell to cell during battery operation. Thus~ the electrode - support frames 2, 3 are transformed into strip eaectrodes 12, 13.
With interposition~ of a separator strip 4, which is highly por-ous but largely insensitive to pressure, and which is unrolled from spool 14, the electrode strips are then brought together while passing over turn-- about roller 15, after which they can be folded.
Just before the folding procedure, there will be excized over predetermined distances those portions 9 from the strip electrodes (12), (13) and from the separator (4) which after insertion into the block casing would extend across one of the cell-separating partitions (7) or (8) where they would be superfluous. Removal of the active mass can be accomplished by air blast~ by rinsing, or if desired, already during the pasting process by leaving an appropriate portion of the electrode frame free of pasted mass.
~7816 The same measures!may of course, be taken with respect to the strip portions which extend across the end walls 8 of the block casing after insertion, so that here, too, only the support frame 2 of strip electrode 12 remains to provide the external electrical connections 16, 17 beyond end walls 8.
To complete the storage batteryl~ it then only remains to close the casing. Surprisingly~ this can be done ~ery simply by welding on a side wall 18~ by means of the known mirror wehding process. ~ue to the heating effect~ the synthetic material of the cell separating partition 7 and of the end walls 8 of the casing~ as well as of the mating extensions 19 and 20 in side wall 18, penetrates through the framework of the electrode, so that a strong and liquid-tight joint results. Before this mirror welding of a lid is performed, it may be desirable to urge the electrode frame against the separating partition by means of a ram and, if desired, to also provide additional heating during that process step in order to achieve a certain penetration of the electrode frame into the edge of cell separating partition 7 even before the ultimate mirror welding of the lid. The top of the block casing, which coincides with the plane of the drawing, is then provided with the conventional filler and gas escape apertures.
Also paraIlel to the plane of the drawing is the plane of the electrolyte surface, whereas the closure plane designated by the phantom lines AA is perpendicular to the electrolyte surface.
The necessary terminal post connections for such a storage battery may be formed inside or outside the cell from the protruding electrode frame portion, by pressing on and, if desired, welding on of a terminal post.
1~78~6 It is apparent that the conventional manufacturing steps of curing, forming, preserving (e g. by treatment with boric acid) may be accomplished outside the block casing. For the continuousness of the manufacturing process it is particularly desirable that these steps be performed within the block casing itself, after insertion of the electrode packages therein.
The advantage of the storage battery which has been described is that its manufacturing process exhibits a particularly desirable material flow.
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.
~;
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. ~
:. :
--6_ - : ~ . .
- ' : ' ~ ',, -''. ' ~ :
~':' . ' '
Claims (16)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A multi-cell storage battery having electrode stacks comprising positive and negative strip electrodes with intervening separator folded in a zig-zag configuration into a package, wherein the adjacent individual cells are electrically connected via an electrode support frame of one of the strip electrodes extending by means of a large-surface portion across a cell separat-ing partition, and the block casing closure is formed by a side wall perpendic-ular to the plane of the electrodes.
2. The battery of claim 1 wherein cell connectors extend in the plane of the closure for the block casing.
3. The battery of claim 1 wherein the electrode support frame is formed of continuous strips of expanded metal.
4. The battery of claim 3 wherein strip endings of the electrode pack-ages are connected in electrically conductive manner to rod-shaped lead mem-bers, the rods forming the base for terminal post connections.
5. The battery of claim 3 wherein external electrical connections for the battery are formed by large-area portions of the electrode support frame of one of the counter strip electrode extending across the end walls of the block casing.
6. The battery of claim 5 wherein the support frames extend across the end walls in the plane of the closure for the block casing.
7. The battery of claim 1 wherein the side wall providing the closure for the block casing is one of the walls extending across the multiple cells of the battery.
8. The method of manufacturing, which method comprises introducing the electrode stacks made of strip electrodes folded in zig-zag configuration into a multicell block casing through openings in the side of the casing, and closing this side of the block casing in liquid-tight manner by welding a side wall to said block casing.
9. The method of claim 8 wherein the electrode stacks are made by folding unitarily pasted, continuous electrode strips with an interposed separator strip.
10. A method according to claim 8, wherein further external electrical connections for the battery are formed by large-area portions of the electrode support frame of one of the counter strip electrode extending across the end walls of the block casing; said method comprising electrode support frame to be placed across the cell-separating partition and end walls of the block cas-ing, being first freed from adhering mass and a corresponding parallel section of the counter electrode and of the separator being completely removed.
11. The method of claim 10 further comprising filling the casing with electrolyte up to substantially the plane of the closure.
12. The method of claim 8 wherein the welding is carried out by mirror welding.
13. The method of claim 10 wherein the closing of the block casing side also includes recessing portions of the support frame which extend across said cell separating partition and walls slightly in said partition and walls.
14. The method of claim 8 further comprising pasting the electrode sup-port frames with unitary active mass before introduction into the casing.
15. The method of claim 14 further comprising subjecting the electrode mass pasted onto the support frames to curing after introduction into the casing.
16. The method of claim 14 further comprising subjecting the electrodes to forming within the block casing after the casing has been closed from the side.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP2737837.6 | 1977-08-23 | ||
| DE2737837A DE2737837C3 (en) | 1977-08-23 | 1977-08-23 | Design and method for manufacturing a multi-cell lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1107816A true CA1107816A (en) | 1981-08-25 |
Family
ID=6017024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA309,810A Expired CA1107816A (en) | 1977-08-23 | 1978-08-22 | Continuous production of multi cell batteries |
Country Status (19)
| Country | Link |
|---|---|
| JP (1) | JPS5445752A (en) |
| AR (1) | AR215949A1 (en) |
| AT (1) | AT363531B (en) |
| BE (1) | BE869893A (en) |
| BR (1) | BR7805416A (en) |
| CA (1) | CA1107816A (en) |
| CH (1) | CH641914A5 (en) |
| DE (1) | DE2737837C3 (en) |
| DK (1) | DK150869C (en) |
| ES (1) | ES244800Y (en) |
| FI (1) | FI71633C (en) |
| FR (1) | FR2408918A1 (en) |
| GB (1) | GB2002949B (en) |
| GR (1) | GR64038B (en) |
| IT (1) | IT1113094B (en) |
| NL (1) | NL178109C (en) |
| NO (1) | NO147463C (en) |
| SE (1) | SE442565B (en) |
| TR (1) | TR21181A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4510682A (en) * | 1982-05-24 | 1985-04-16 | Gnb Batteries Inc. | Apparatus and method for assembling battery cell elements |
| US5853915A (en) * | 1997-08-19 | 1998-12-29 | Mattel, Inc. | Foldable multi-configuration battery pack |
| US7629077B2 (en) | 2004-02-26 | 2009-12-08 | Qinetiq Limited | Pouch cell construction |
| DE102009046801A1 (en) * | 2009-11-18 | 2011-05-19 | SB LiMotive Company Ltd., Suwon | Battery cell and battery with a plurality of battery cells |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE501516A (en) * | 1950-02-28 | |||
| FR1092426A (en) * | 1953-10-22 | 1955-04-21 | Comp Generale Electricite | bipolar electrodes for batteries or accumulators and their production method |
| FR1183357A (en) * | 1956-10-06 | 1959-07-07 | Galtzig Electric | Receptacles for multiple-cell electric accumulators |
| FR1515215A (en) * | 1967-01-19 | 1968-03-01 | Accumulateur Chargeur Dary | Lead-acid accumulator |
| US3514342A (en) * | 1968-05-02 | 1970-05-26 | Esb Inc | Method of making a battery |
| JPS5131583B2 (en) * | 1971-08-30 | 1976-09-07 | ||
| US3844841A (en) * | 1972-12-29 | 1974-10-29 | Energy Res Corp | Modular battery construction |
| JPS5020254U (en) * | 1973-06-18 | 1975-03-07 |
-
1977
- 1977-08-23 DE DE2737837A patent/DE2737837C3/en not_active Expired
-
1978
- 1978-06-12 AT AT0425778A patent/AT363531B/en not_active IP Right Cessation
- 1978-06-20 FI FI781971A patent/FI71633C/en not_active IP Right Cessation
- 1978-06-20 CH CH669778A patent/CH641914A5/en not_active IP Right Cessation
- 1978-07-06 FR FR7820235A patent/FR2408918A1/en active Granted
- 1978-07-07 NO NO782386A patent/NO147463C/en unknown
- 1978-07-10 NL NLAANVRAGE7807418,A patent/NL178109C/en not_active IP Right Cessation
- 1978-07-24 SE SE7808102A patent/SE442565B/en not_active IP Right Cessation
- 1978-07-26 ES ES1978244800U patent/ES244800Y/en not_active Expired
- 1978-08-02 DK DK342778A patent/DK150869C/en not_active IP Right Cessation
- 1978-08-18 TR TR21181A patent/TR21181A/en unknown
- 1978-08-21 GR GR57037A patent/GR64038B/en unknown
- 1978-08-22 BE BE190009A patent/BE869893A/en not_active IP Right Cessation
- 1978-08-22 GB GB7834095A patent/GB2002949B/en not_active Expired
- 1978-08-22 CA CA309,810A patent/CA1107816A/en not_active Expired
- 1978-08-22 BR BR7805416A patent/BR7805416A/en unknown
- 1978-08-23 IT IT26953/78A patent/IT1113094B/en active
- 1978-08-23 AR AR273402A patent/AR215949A1/en active
- 1978-08-23 JP JP10267278A patent/JPS5445752A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2737837B2 (en) | 1980-03-27 |
| DK342778A (en) | 1979-02-24 |
| CH641914A5 (en) | 1984-03-15 |
| DK150869C (en) | 1988-01-25 |
| GB2002949B (en) | 1982-05-26 |
| SE442565B (en) | 1986-01-13 |
| NO782386L (en) | 1979-02-26 |
| GR64038B (en) | 1980-01-19 |
| IT7826953A0 (en) | 1978-08-23 |
| AR215949A1 (en) | 1979-11-15 |
| FI71633B (en) | 1986-10-10 |
| AT363531B (en) | 1981-08-10 |
| GB2002949A (en) | 1979-02-28 |
| DE2737837C3 (en) | 1980-11-13 |
| FI781971A (en) | 1979-02-24 |
| FR2408918B1 (en) | 1981-09-11 |
| NO147463B (en) | 1983-01-03 |
| BE869893A (en) | 1978-12-18 |
| NL178109C (en) | 1986-01-16 |
| IT1113094B (en) | 1986-01-20 |
| FI71633C (en) | 1987-01-19 |
| TR21181A (en) | 1983-12-05 |
| SE7808102L (en) | 1979-02-24 |
| BR7805416A (en) | 1979-04-17 |
| ATA425778A (en) | 1981-01-15 |
| NL7807418A (en) | 1979-02-27 |
| JPS5445752A (en) | 1979-04-11 |
| ES244800U (en) | 1979-11-16 |
| ES244800Y (en) | 1980-05-16 |
| NO147463C (en) | 1983-04-13 |
| FR2408918A1 (en) | 1979-06-08 |
| DK150869B (en) | 1987-07-06 |
| DE2737837A1 (en) | 1979-03-01 |
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