CA2031290A1 - Base cloth for air bag - Google Patents
Base cloth for air bagInfo
- Publication number
- CA2031290A1 CA2031290A1 CA002031290A CA2031290A CA2031290A1 CA 2031290 A1 CA2031290 A1 CA 2031290A1 CA 002031290 A CA002031290 A CA 002031290A CA 2031290 A CA2031290 A CA 2031290A CA 2031290 A1 CA2031290 A1 CA 2031290A1
- Authority
- CA
- Canada
- Prior art keywords
- air bag
- base cloth
- cloth
- woven
- weft
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/235—Inflatable members characterised by their material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/02—Inflatable articles
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
Abstract
ABSTRACT OF THE DISCLOSURE
The base cloth for air bag according to this invention is formed by woven cloth and constitutes an air bag, which is inflated by reaction gas from an inflator, operated in an emergency, and receives the occupant in vehicle. Warp and weft are arranged in the same high density, and the strength in lateral direction is uniformly set.
Because warp and weft are arranged in the same high density and the strength in lateral direction is uniformaly set, the base cloth for air bag with such arrangement can fulfill its function completely by inflating instantaneously by high pressure reaction gas and receiving the occupant in reliable manner. Above all, the air bag for the occupant on the seats other than the driver's seat can effec-tively fulfill the function because base cloth is used up to its selvege.
The base cloth for air bag according to this invention is formed by woven cloth and constitutes an air bag, which is inflated by reaction gas from an inflator, operated in an emergency, and receives the occupant in vehicle. Warp and weft are arranged in the same high density, and the strength in lateral direction is uniformly set.
Because warp and weft are arranged in the same high density and the strength in lateral direction is uniformaly set, the base cloth for air bag with such arrangement can fulfill its function completely by inflating instantaneously by high pressure reaction gas and receiving the occupant in reliable manner. Above all, the air bag for the occupant on the seats other than the driver's seat can effec-tively fulfill the function because base cloth is used up to its selvege.
Description
SPECIFICATION
TITLE OF THE INVENTION
sase cloth for air bag sAcKGRouND OF THE INVENTION
The present invention relates to an air bag for protecting the occupantin an vehicle as it is inflated by reaction gas from an inflator when the vehicle is collided, and in particular to a base cloth to con-stitute such air bag.
The air bag unit as provided on a fix`ed portion of car body in front of a seat in a vehicle plays an important role to protect the person in the vehicle from injury when the vehicle is collided as the air bag is inflated instantaneously by the pressure of reaction gas released from an inflator fixed on steering or on dashboard.
For example, as shown in Fig. 4, such air bag unit 1 comprises an inflator 2, which induces chemical reaction of gas generating agent by collision signal from collision detecting sensor when deceleration of vehicle becomes higher than a certain level and ejects the reaction gas, and an air bag 3, the base of which is fixed on the inflator 2 and which is inflated by the gas ejected from the inflator 2.
This air bag unit 1 is mounted, for example, on a fixed portion of car body such as the center of steering wheel 5 with the air bag 3 folded up and 2~1290 placed in a pad 4.
As shown in Fig. 5, the gas generating agent in the inflator 2 reacts when the vehicle is collided, and the air bag 3 is instantaneously inflated by the reaction gas thus generated. In so doing, the air bag 3 receives the occupant M, who is thrown forward by inertia, and protects the person M from the collision against car body.
In an air bag 3 of conventional type, the air bag 3 for air bag unit 1 to be installed on the driver's seat is formed by sewing a base cloth 3a facing to the driver M and a base cloth 3b to be fixed on a fixed portion of car body. The air bag 3 for the air bag unit 1 to be installed on the other position other than the driver's seat is formed by sewing the base cloth formed in various shapes. These base cloths 3a and 3b are made of woven cloths in most cases.
The air bag 3 must fulfill the function to inflate instantaneously by high pressure reaction gas and to receive theoccupant perfectly, and the following conditions are required for the base clothes 3a and 3b:
(1) Warp and weft must be set in the same density.
(2) They must be set at far higher density than normal woven cloth.
~3) The strength must be equal in longitudinal direction and lateral direction.
However, when a cloth is woven, crimping gen-erally occurs, in which the woven cloth is shrinked in lateral direction. In general, the base cloth for air bag is woven in high density using thread of about 400 deniers. In weaving the cloth in such high density, stress often unavoidably occurs on the selvege. Accordingly, it has been customary to weave the cloth by holding the selvege of base cloth and pulling warp, using a temple. However, when cloth is woven by holding only the selvege of base cloth, warp is more extensively pulled as it approaches toward the center of weaving width.
Thus, warp 103 is unavoidably stretched on the selvege 102 of base cloth 101. As the result, weft 104 is curved in the pulling direction of the warp 103, and the base cloth thus woven has partially different density, and the elongation also dif fers partially. When elongation and density differ partially, the strength of base cloth also partially differs between the selvege and the center.
Therefore, the strength of air bag differs between the case where base cloth 101 is cut at the portion A for air bag and the case where it is cut ai the portion B.
As described above, in the conventional type for air bag, the density of warp and weft differs partially and the strength is not uniform. Thus, the conditions required for base cloth of air bag as described above cannot be satisfied, and the function of air bag cannot be fulfilled to full extent.
SUMMARY OF THE INVENTION
The object of the present invention is to offer a base cloth for air bag, which can fulfill the functions of air bag satisfactorily and reliably.
To attain such object, the base cloth according to the present invention is made of woven cloth and constitutes an air bag, which is inflated by reaction gas from an inflator, operated in an emergency, and receives the occupantin vehicle, characterized in that warp and weft are set in the same high density, and that the strength in lateral direction is uni-formly set.
The base cloth for air bag according to this invention with such arrangement can fulfill the functions of air bag perfectly when it receives the occupant when it is inflated instantaneously by high pressure reaction gas because warp and weft are set in the same high density and because the strength in lateral direction is uniformly set. Above all, the air bag forOccllpant on the seat other than the driver's seat effectively functions because even the selvege of base cloth is used.
Still other ob]ects and advantages of the invention will in part be obvious and will in 20312~0 part be apparent from the specification.
The invention accordingly comprises the features of construction, combinations of ele-ments, and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the invention will be indicated in the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 shows an example of an air bag of an embodiment of the base cloth for air bag according to the present invention, (A) being a plan view, and (B) a cross-sectional view along the line IB-IB in (A);
Fig. 2 is a drawing showing a part of woven cloth to be used as base cloth of this embodiment;
Fig. 3 represents an example of a weaving machine to weave the above woven cloth;
Fig. 4 is a schematical cross-sectional view of typical case where the air bag unit is installed on steering wheel;
Fig. 5 shows the conditlon when the air bag is inflated; and Fig. 6 shows the base cloth of conventional type for air bag when it is woven up.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
As shown in Figs. 1 (A) and (B), the air bag comprises a base cloth 3a installed face-to-face to the occupantM in the vehicle and a base cloth 3b to be fixed on a fixed portion of car body, and it is formed by sewing up the marginal portions of the base cloths 3a and 3b. In the example shown in the figure, the base cloths 3a and 3b are sewn up in such manner that the thread directions intersect each other by an angle of about 45 degrees between these cloths. of course, the direction of these threads may be in the same direction or the intersect-ing angle may be an angle other than 45 degrees.
As shown in Fig. 2, these base cloths 3a and 3b are woven with the same density for both warp 6 and weft 7 and in the higher density than the density of normal woven cloth. Also, the base cloths are made of woven cloth, in which the strength in lateral direction is uniformly set.
Such woven cloth is woven, for example, by a weaving machine 8 using bar temple as shown in Fig.
3. Specifically, a cover 11 is mounted on a guide bar 10 of main body 9 of the weaving machine 3, and bar temple 13 is disposed in a space 12 formed between them. The woven cloth 14 is inserted into this space 12. After it is wound on the bar temple 13, it is sent toward the breast beam 15 and is finally wound up on a winder (not shown).
When the woven cloth 14 is woven, weft 7 is passed through between the warps 6, which are positioned up and down and on which a certain 2Q312~
tension is applied. Then, the weft 7 is hit by the guide bar 10 toward the weaving end of the woven cloth 4 to increase the density of the weft 7. In this case, when the guide bar 10 moves back from the weaving end, the bar temple 13 ls pulled up by the tension of the woven cloth 14, and the woven cloth 14 is held between main body 9 and bar temple 13 as well as between bar temple 13 and cover 11.
As the result, total width of the woven cloth 14 is tightened, and the weaving end does not move.
When guide bar 10 hits the weaving end, the woven cloth 14 is loosened. Because bar temple 13 is separated from main body 9 and cover 11, the woven cloth 14 is wound up on the winder.
The woven cloth 14 thus woven up has the warp and the weft in the same density, and the density is higher than that of normal woven cloth. More-over, no sag occurs on the selvege of the woven cloth 14, and the woven cloth 14 has uniform tensile strength over the entire width.
Therefore, by cutting such woven cloth 14 to the base cloth in a proper shape for air bag 3 according to the place to be installed and by sewing these base cloths, the air bag 3 can re-liably receive the occupant in the vehicle when it is inflated instantaneously by high pressure reaction gas.
As it is evident from the above description, ~31290 warp and weft have the same high density in the base cloths for air bag according to this invention, and the strength in lateral direction is uni~ormly set. Accordingly, the air bag can be inflated instantaneously by high pressure reaction gas and receive the occupant in reliable manner. Above all, in the air bag for the occupant on the seats other than the driver's seat, the base cloth according to this invention can effectively fulfill its function because even the selvege of the base cloth is used in many cases.
TITLE OF THE INVENTION
sase cloth for air bag sAcKGRouND OF THE INVENTION
The present invention relates to an air bag for protecting the occupantin an vehicle as it is inflated by reaction gas from an inflator when the vehicle is collided, and in particular to a base cloth to con-stitute such air bag.
The air bag unit as provided on a fix`ed portion of car body in front of a seat in a vehicle plays an important role to protect the person in the vehicle from injury when the vehicle is collided as the air bag is inflated instantaneously by the pressure of reaction gas released from an inflator fixed on steering or on dashboard.
For example, as shown in Fig. 4, such air bag unit 1 comprises an inflator 2, which induces chemical reaction of gas generating agent by collision signal from collision detecting sensor when deceleration of vehicle becomes higher than a certain level and ejects the reaction gas, and an air bag 3, the base of which is fixed on the inflator 2 and which is inflated by the gas ejected from the inflator 2.
This air bag unit 1 is mounted, for example, on a fixed portion of car body such as the center of steering wheel 5 with the air bag 3 folded up and 2~1290 placed in a pad 4.
As shown in Fig. 5, the gas generating agent in the inflator 2 reacts when the vehicle is collided, and the air bag 3 is instantaneously inflated by the reaction gas thus generated. In so doing, the air bag 3 receives the occupant M, who is thrown forward by inertia, and protects the person M from the collision against car body.
In an air bag 3 of conventional type, the air bag 3 for air bag unit 1 to be installed on the driver's seat is formed by sewing a base cloth 3a facing to the driver M and a base cloth 3b to be fixed on a fixed portion of car body. The air bag 3 for the air bag unit 1 to be installed on the other position other than the driver's seat is formed by sewing the base cloth formed in various shapes. These base cloths 3a and 3b are made of woven cloths in most cases.
The air bag 3 must fulfill the function to inflate instantaneously by high pressure reaction gas and to receive theoccupant perfectly, and the following conditions are required for the base clothes 3a and 3b:
(1) Warp and weft must be set in the same density.
(2) They must be set at far higher density than normal woven cloth.
~3) The strength must be equal in longitudinal direction and lateral direction.
However, when a cloth is woven, crimping gen-erally occurs, in which the woven cloth is shrinked in lateral direction. In general, the base cloth for air bag is woven in high density using thread of about 400 deniers. In weaving the cloth in such high density, stress often unavoidably occurs on the selvege. Accordingly, it has been customary to weave the cloth by holding the selvege of base cloth and pulling warp, using a temple. However, when cloth is woven by holding only the selvege of base cloth, warp is more extensively pulled as it approaches toward the center of weaving width.
Thus, warp 103 is unavoidably stretched on the selvege 102 of base cloth 101. As the result, weft 104 is curved in the pulling direction of the warp 103, and the base cloth thus woven has partially different density, and the elongation also dif fers partially. When elongation and density differ partially, the strength of base cloth also partially differs between the selvege and the center.
Therefore, the strength of air bag differs between the case where base cloth 101 is cut at the portion A for air bag and the case where it is cut ai the portion B.
As described above, in the conventional type for air bag, the density of warp and weft differs partially and the strength is not uniform. Thus, the conditions required for base cloth of air bag as described above cannot be satisfied, and the function of air bag cannot be fulfilled to full extent.
SUMMARY OF THE INVENTION
The object of the present invention is to offer a base cloth for air bag, which can fulfill the functions of air bag satisfactorily and reliably.
To attain such object, the base cloth according to the present invention is made of woven cloth and constitutes an air bag, which is inflated by reaction gas from an inflator, operated in an emergency, and receives the occupantin vehicle, characterized in that warp and weft are set in the same high density, and that the strength in lateral direction is uni-formly set.
The base cloth for air bag according to this invention with such arrangement can fulfill the functions of air bag perfectly when it receives the occupant when it is inflated instantaneously by high pressure reaction gas because warp and weft are set in the same high density and because the strength in lateral direction is uniformly set. Above all, the air bag forOccllpant on the seat other than the driver's seat effectively functions because even the selvege of base cloth is used.
Still other ob]ects and advantages of the invention will in part be obvious and will in 20312~0 part be apparent from the specification.
The invention accordingly comprises the features of construction, combinations of ele-ments, and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the invention will be indicated in the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 shows an example of an air bag of an embodiment of the base cloth for air bag according to the present invention, (A) being a plan view, and (B) a cross-sectional view along the line IB-IB in (A);
Fig. 2 is a drawing showing a part of woven cloth to be used as base cloth of this embodiment;
Fig. 3 represents an example of a weaving machine to weave the above woven cloth;
Fig. 4 is a schematical cross-sectional view of typical case where the air bag unit is installed on steering wheel;
Fig. 5 shows the conditlon when the air bag is inflated; and Fig. 6 shows the base cloth of conventional type for air bag when it is woven up.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
As shown in Figs. 1 (A) and (B), the air bag comprises a base cloth 3a installed face-to-face to the occupantM in the vehicle and a base cloth 3b to be fixed on a fixed portion of car body, and it is formed by sewing up the marginal portions of the base cloths 3a and 3b. In the example shown in the figure, the base cloths 3a and 3b are sewn up in such manner that the thread directions intersect each other by an angle of about 45 degrees between these cloths. of course, the direction of these threads may be in the same direction or the intersect-ing angle may be an angle other than 45 degrees.
As shown in Fig. 2, these base cloths 3a and 3b are woven with the same density for both warp 6 and weft 7 and in the higher density than the density of normal woven cloth. Also, the base cloths are made of woven cloth, in which the strength in lateral direction is uniformly set.
Such woven cloth is woven, for example, by a weaving machine 8 using bar temple as shown in Fig.
3. Specifically, a cover 11 is mounted on a guide bar 10 of main body 9 of the weaving machine 3, and bar temple 13 is disposed in a space 12 formed between them. The woven cloth 14 is inserted into this space 12. After it is wound on the bar temple 13, it is sent toward the breast beam 15 and is finally wound up on a winder (not shown).
When the woven cloth 14 is woven, weft 7 is passed through between the warps 6, which are positioned up and down and on which a certain 2Q312~
tension is applied. Then, the weft 7 is hit by the guide bar 10 toward the weaving end of the woven cloth 4 to increase the density of the weft 7. In this case, when the guide bar 10 moves back from the weaving end, the bar temple 13 ls pulled up by the tension of the woven cloth 14, and the woven cloth 14 is held between main body 9 and bar temple 13 as well as between bar temple 13 and cover 11.
As the result, total width of the woven cloth 14 is tightened, and the weaving end does not move.
When guide bar 10 hits the weaving end, the woven cloth 14 is loosened. Because bar temple 13 is separated from main body 9 and cover 11, the woven cloth 14 is wound up on the winder.
The woven cloth 14 thus woven up has the warp and the weft in the same density, and the density is higher than that of normal woven cloth. More-over, no sag occurs on the selvege of the woven cloth 14, and the woven cloth 14 has uniform tensile strength over the entire width.
Therefore, by cutting such woven cloth 14 to the base cloth in a proper shape for air bag 3 according to the place to be installed and by sewing these base cloths, the air bag 3 can re-liably receive the occupant in the vehicle when it is inflated instantaneously by high pressure reaction gas.
As it is evident from the above description, ~31290 warp and weft have the same high density in the base cloths for air bag according to this invention, and the strength in lateral direction is uni~ormly set. Accordingly, the air bag can be inflated instantaneously by high pressure reaction gas and receive the occupant in reliable manner. Above all, in the air bag for the occupant on the seats other than the driver's seat, the base cloth according to this invention can effectively fulfill its function because even the selvege of the base cloth is used in many cases.
Claims
WHAT WE CLAIM IS:
( 1 ) A base cloth for air bag, formed by woven cloth and constitutes an air bag, which is inflated by reaction gas from inflator, operated in an emergency, and receives the occupant in vehicle, characterized in that warp and weft are set in the same high density and that the strength in lateral direction is uni-formaly set.
( 1 ) A base cloth for air bag, formed by woven cloth and constitutes an air bag, which is inflated by reaction gas from inflator, operated in an emergency, and receives the occupant in vehicle, characterized in that warp and weft are set in the same high density and that the strength in lateral direction is uni-formaly set.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1313215A JP2945043B2 (en) | 1989-12-01 | 1989-12-01 | Base fabric for airbag |
| JP313215/1989 | 1989-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2031290A1 true CA2031290A1 (en) | 1991-06-02 |
Family
ID=18038496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002031290A Abandoned CA2031290A1 (en) | 1989-12-01 | 1990-11-30 | Base cloth for air bag |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP2945043B2 (en) |
| KR (1) | KR910011540A (en) |
| CA (1) | CA2031290A1 (en) |
| DE (1) | DE4038287A1 (en) |
| FR (1) | FR2655360A1 (en) |
| GB (1) | GB2241207A (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4229564C1 (en) * | 1992-09-04 | 1993-08-26 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
| US5378019A (en) * | 1993-03-11 | 1995-01-03 | Morton International, Inc. | Controlled deployment driver's side air bag |
| US5503197A (en) * | 1994-03-30 | 1996-04-02 | Milliken Research Corporation | Method for producing high weave density airbag fabric on a water-jet loom using unsized yarns |
| US5421378A (en) * | 1994-03-30 | 1995-06-06 | Milliken Research Corporation | Airbag weaving on a water-jet loom using yarns |
| US5881776A (en) | 1997-01-24 | 1999-03-16 | Safety Components Fabric Technologies, Inc. | Rapier woven low permeability air bag fabric |
| US6632753B1 (en) | 2000-04-26 | 2003-10-14 | Safety Components Fabric Technologies, Inc. | Motor vehicle air bag and fabric for use in same |
| KR100431507B1 (en) * | 2001-09-07 | 2004-05-14 | 주식회사 경인 | A Weaving Method for Textiles For Inflatable Boat, A Textile Weaved Thereby and Coated Fabric Having The Textile |
| EP1308546B1 (en) * | 2001-11-01 | 2008-07-09 | Sultex AG | Method for weaving a double layered fabric |
| DE50212466D1 (en) | 2001-11-01 | 2008-08-21 | Sultex Ag | Method for weaving a double-layered fabric |
| US7871480B1 (en) | 2001-11-21 | 2011-01-18 | Toney Wayne H | Apparatus and method for making motor vehicle air bags, and air bags made by same |
| GB2390574A (en) * | 2002-07-10 | 2004-01-14 | Autoliv Dev | An air bag with two elements having angularly offset warp and weft yarns |
| US7354063B2 (en) * | 2004-03-09 | 2008-04-08 | Milliken & Company | Airbag structure |
| JP4424263B2 (en) | 2005-06-10 | 2010-03-03 | 株式会社豊田自動織機 | Textile fabrics and composites |
| JP2007224486A (en) * | 2006-01-30 | 2007-09-06 | Toray Ind Inc | Woven fabric for air bag, air bag and method for producing the woven fabric for air bag |
| WO2007148791A1 (en) * | 2006-06-23 | 2007-12-27 | Toray Industries, Inc. | Woven fabric for air bags, air bags and process for production of the woven fabric |
| JP5088013B2 (en) * | 2006-06-23 | 2012-12-05 | 東レ株式会社 | Airbag fabric, airbag and method for manufacturing airbag fabric |
| DE102015108423A1 (en) | 2015-05-28 | 2015-09-17 | Takata AG | Airbag for an airbag module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB944231A (en) * | 1959-01-10 | 1963-12-11 | Wool Ind Res Association | Improvements relating to temples for weaving looms |
| FR1528124A (en) * | 1966-05-27 | 1968-06-07 | Sulzer Ag | Loom with a fabric spreader |
| JPS4924103U (en) * | 1972-06-02 | 1974-03-01 | ||
| GB1507152A (en) * | 1975-03-14 | 1978-04-12 | Toray Industries | Fabric material for producing woven air bags utilized for protecting riders in vehicles |
| KR950008145B1 (en) * | 1988-08-03 | 1995-07-25 | 아사히가세이고오교 가부시끼가이샤 | Air bag |
-
1989
- 1989-12-01 JP JP1313215A patent/JP2945043B2/en not_active Expired - Lifetime
-
1990
- 1990-11-30 CA CA002031290A patent/CA2031290A1/en not_active Abandoned
- 1990-11-30 GB GB9026056A patent/GB2241207A/en not_active Withdrawn
- 1990-11-30 DE DE4038287A patent/DE4038287A1/en not_active Withdrawn
- 1990-11-30 FR FR9015063A patent/FR2655360A1/en active Pending
- 1990-12-01 KR KR1019900019692A patent/KR910011540A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03176250A (en) | 1991-07-31 |
| FR2655360A1 (en) | 1991-06-07 |
| GB9026056D0 (en) | 1991-01-16 |
| GB2241207A (en) | 1991-08-28 |
| DE4038287A1 (en) | 1991-06-06 |
| JP2945043B2 (en) | 1999-09-06 |
| KR910011540A (en) | 1991-08-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |