EP0193299B1 - Brush for applying material in liquid or emulsion form - Google Patents
Brush for applying material in liquid or emulsion form Download PDFInfo
- Publication number
- EP0193299B1 EP0193299B1 EP86300810A EP86300810A EP0193299B1 EP 0193299 B1 EP0193299 B1 EP 0193299B1 EP 86300810 A EP86300810 A EP 86300810A EP 86300810 A EP86300810 A EP 86300810A EP 0193299 B1 EP0193299 B1 EP 0193299B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rod
- valve
- container
- operational
- pipe
- 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
Images
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
- A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
- A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
- A46B11/0058—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a metered dosage
Description
- This invention relates to a brush for applying liquid or emulsion material, having a container for containing material such as tooth-brushing material, hair-dye, hair-growth material, hair-dressing material, paints, cleaning material, lubricating oil, etc. in liquid or emulsion form.
- There have been proposed various brushes for applying liquid or emulsion material. For example, there have appeared toothbrushes which contain therein tooth-brushing material in paste or emulsion form and feed the material onto their bristle-planted portions when they are used for tooth-brushing operations. In those toothbrushes disclosed in Japanese Utility Model Publication Nos. 138966/1977 and 102374/1979, the material contained in their handles is extruded by extrusion members, such as a piston, or others. However, the operation for extruding the material is troublesome, and it is difficult to adjust the piston or others so as to extrude a necessary amount of the material. In a toothbrush of the type which contains a tooth-brushing material extrusion mechanism in its handle, much space is not allowed for the material. If the toothbrush is made disposable, the material runs out before its bristle-planted portion becomes unusable, and it is inevitable to make the material refillable. Additionally the sealing is not carried out perfectly between the interior of its handle and the bristle-planted portion. Accordingly there has been a case wherein the material flows back into the interior of the handle from its user's mouth during the tooth-brushing operation. As described above, the conventional toothbrushes containing tooth-brushing material have these various drawbacks.
- A know brush for applying liquid or emulsion material is disclosed in European Patent No. 0123 518. Here there is disclosed a brush for applying liquid or emulsion material comprising a handle having a container for containing material in liquid or emulsion form and a main body, a rod provided, at its head, with a great number of bristles, a piece of sponge, a piece of rubber or likewise members and a pumping mechanism provided in the handle for sucking the material from the container and feeding the sucked material to the head of the rod, a rear end of the main body of the handle being connected detachably to a mouth of the container, the root portion of the rod being inserted axially slidably into a forward bearing portion of the main body in such a manner that rotation of the rod can be avoided by a rotation-preventing-means, the rod having a material feeding passage extending from the root portion to the head thereof, the pumping mechanism being operated in accordance with axial movements of the rod at the time when the rod is pushed rearward and thereafter returned forward, the pumping mechanism comprising an operational pipe received slidably between the main body and the root portion of the rod so as to be moved in accordance with axial movements of the rod, a forward valve body for closing and opening the front opening of a conduit formed in the pipe, a rear valve body accommodated in a valve seat member located in the rear portion of the main body in order to open and close a suction hole formed in the valve seat member and opened to the inside of the container, a suction chamber formed between the two valve bodies, and a resilient member urging the operational pipe forward, said operational pipe having a valve portion integrally formed at its outer circumferential surface so as to be in airtight contact with the inner surface of the main body.
- Further, as a brush for dyeing hair, there have appeared brushes of a type having a handle on the fore part of which a great number of bristles are held so as to be extended in the radial direction from the fore part thereof. When a user uses the brush to dye his hair, he pours hair-dye on the bristles from a bottle containing the hair-dye to apply the hair-dye on his hair while rubbing his hair with the brush.
- In this dyeing operation, it is troublesome for the user to pour a predetermined amount of hair-dye on the bristles of the brush. Sometimes he pours hair-dye more or less than a necessary amount on its bristles thereby causing an uneven dyeing.
- Moreover, when a user applies hair-growth medical liquid or hair-dressing medical liquid on his hair or his head skin, he pours an amount of the medical liquid onto his palm from a bottle containing it to rub it on his hair with his palm or he pours an amount of the medical liquid on his hair directly from the bottle to rub it on his hair with his hand. In this applying operation, the user's hand becomes dirty.
- It is an object of this invention to provide a brush for applying liquid or emulsion material such as toothpaste, hair-dye, etc., containing therein the material in liquid or emulsion form, which is simple in structure and can be operated by one hand to feed a necessary quantity of the material onto its bristle-planted or sponge-applied surface.
- According to this invention, there is provided a brush according to the preamble of claim 1 characterised in that the valve portion is formed substantially centrally in the axial direction of the pipe and in that a rear part of the pipe extends into the suction chamber, a part of the resilient member receiving the rear part of the pipe, therein that an operational bar is provided between the two valve bodies so as to pass through the conduit formed in the operational pipe for controlling open and close movements of the two valve bodies, and that the forward valve body has two valve plates of a circular shape whose peripheral is partially cut to form paths for passing the material and a loop portion for connecting the two valve plates with each other, the loop portion functioning as an elastic portion, the forward end of the operational bar abutting against the rear valve plate of the forward valve body to open the conduit when the rod is pushed rearward.
- The nature, utility;and further features of this invention will be more clearly apparent from the following detailed description with respect to preferred embodiments of the invention when read in conjunction with the accompanying drawings briefly described below.
- In the accompanying drawings:
- Fig. 1 is a front view of a brush of this invention;
- Fig. 2 is a plan view of the brush of this invention;
- Fig. 3 is a vertical sectional view of the brush of this invention;
- Fig. 4 is a vertical sectional view of the brush in the condition where a bristle-planted rod is pushed into a handle main body;
- Fig. 5 is a vertical sectional view of the brush in the condition where the bristle-planted rod is returned after being pushed thereinto initially;
- Fig. 6 is a vertical sectional view of the brush in the condition where the bristle-planted rod is again pushed into to feed a liquid or emulsion material onto a bristle-planting surface after being once returned;
- Fig. 7 is a vertical sectional view of the brush in the condition following the condition of Fig. 5, where the material is sucked into a suction chamber;
- Fig. 8 is a plan view of a forward vavle body; and
- Figs. 9 (A) and (B) are elevational views of two valve plates provided at the opposite ends of the valve body, respectively.
- In Figs. 1 to 3, a brush 1 of this invention comprises a
handle 2 and a bristle-plantedrod 3 inserted in the forward end of thehandle 2 slidably axially thereof, thehandle 2 housing apumping mechanism 4 for feeding material such as tooth-brushing material, hair-dye, hair-growth material, hair-dressing material, cleaning material, paints, lubricating oil, etc. in liquid or emulsion form. - The
handle 2 comprises a combination of amain body 5 and amaterial container 6 for housing a liquid oremulsion material 24, connected to thehandle body 5. Thecontainer 6 has amale thread 6A provided in the projected peripheral surface of the forward end thereof, and themain body 5 has afemale thread 5A provided in the inside peripheral surface of the rear portion thereof. Thebody 5 and thecontainer 6 are connected detachably to each other by the screw-engagement of themale thread 6A with thefemale thread 5A. - The bristle-planted
rod 3 is formed at its head, in a flat shape of rectangular section like a common brush. Thebristles 7 are planted in a bristle-plantedsurface 3A of the head of therod 3. Therod 3 has amaterial passage 8 provided in the interior thereof from therear end 3B to the bristle-planting surface 3A thereof. Thepassage 8 opens directly on the bristle-planting surface 3A or is in communication with the planting holes of therespective bristles 7 planted in the bristle-plantedsurface 3A so that thematerial 24 can be exuded at the roots of thebristles 7. - The
rod 3 is slidably inserted at theroot portion 3B thereof into thebearing portion 9 of thebody 5 so as to keep a sealing function between theroot portion 3B and the inside peripherial surface of thebearing portion 9. Thebearing portion 9 has aslit 10 extending axially in the peripheral surface of thebearing portion 9. Anoperational projection 11 is protruded from the outside peripheral surface of theroot portion 3B of therod 3. Theprojection 11 is engaged slidably with theslit 10 to prevent therot 3 from rotating about its axis. On anoperational projection 11 is provided a slip prevention surface 11 A which is rugged in order to prevent a thumb of a user's hand from slipping thereon. Theprojection 11 and theslit 10 form rotation-preventing means. Thepumping mechanism 4 has anoperational pipe 12 which is integrally provided with avalve portion 15 disposed substantially centrally in the axial direction of the pipe at the outer peripheral surface of thepipe 12. Thevalve portion 15 has front andrear lip portions front lip portion 15A functions to prevent air and dirty water from entering and permeating into themain body 5 through the sliding portions of thebearing portion 9 while therear lip portion 15B functions to prevent the material from leaking out. The front surface of thevalve portion 15 is adapted to abut against aprojection 30 provided on the inner surface of themain body 5 of thehandle 2 when thepipe 12 is in a normal position. - The front part of the
pipe 12 is inserted into ahole 31 formed in theroot portion 3B of therod 3. In front of thepipe 12 is accommodated aforward valve body 19 which has a shape shown in Figs. 8 and 9. Thevalve body 19 is made of elastic material such as synthetic resin. Further, thevalve body 19 has twovalve plates valve plate 19A has, in general, a circular shape whose peripheral is partially cut to form fourpaths 19D for passing the material. Anothervalve plate 19B of the same shape as theplate 19A has fourpaths 19D. The twovalve plates loop portion 19C mainly functioning as an elastic member. - The
valve body 19 is accommodated in thehole 31 in a state wherein the peripheral portion of thefront valve plate 19A abuts against astep 3C formed on the inner surface of thehole 31. - The front face of the
operational pipe 12 is provided with anannular projection 12A which engages with therear valve plate 19B. Thepipe 12 is provided in a connecting region of theroot portion 3B of therod 3 and themain body 5 and has aconduit 32 extending in its longitudinal direction in order to feed thematerial 24 from anairtight suction chamber 21 to therod 3. Thesuction chamber 21 is formed between thevalve portion 15 of thepipe 12 and avalve seat member 16 fixed to the rear end of thebody 5. A ball-shapedrear valve body 20 is accommodated in thevalve seat member 16. Therear valve body 20 is made of steel. In theconduit 32 is freely accommodated anoperational bar 22 for controlling the movement of theforward valve body 19 and therear valve body 20. Thevalve seat member 16 is cup-shaped and its bottom has asuction hole 18. On the inner wall of thevalve seat member 16 are provided a plurality ofribs 16B. Theribs 16B are disposed at a predetermined distance in the circumferential direction of thevalve seat member 16. Theribs 16B form aspace 33 for accommodating therear valve body 20 and eachrib 16B has aprojection 16C, at its front end, for preventing thevalve body 20 from coming out of thespace 33. - The rear portion of the
operational pipe 12 is extended into thesuction chamber 21. Acompression coil spring 17 for urging thepipe 12 forward is provided between the front faces of theribs 16B and the inner side of the bell-shapedvalve portion 15 such that the rear portion of thepipe 12 is received by thecoil spring 17. - The above
operational bar 22 is slender enough not to prevent the material 24 from passing through theconduit 32 of thepipe 12 and is slightly shorter than the distance between the twovalve bodies valve body 19 closes theconduit 32 and thevalve body 20 closes thesuction hole 18 as shown in Fig. 3. - The
container 6 is provided, at its bottom, with a piston-like movablebottom body 23 which is slidable axially inclose contact with the inner peripheral surface of thecontainer 6. The movablebottom body 23 is made of soft synthetic resin or others and has slide edges 23B and 23C which are expanded in a bell-shape respectively at the forward end and the rear end of acylindrical portion 23A. The tight contact of the slide edges 23B and 23C with the inside peripheral wall of thecontainer 6 ensures the airtightness so that the emulsified material orliquid material 24 filled in thecontainer 6 may not leak therefrom. - At the forward end of the
cylindrical portion 23A, there is provided a smaller-diametercylindrical portion 23D which can be inserted in the projected smaller-diameter portion 6B of the mouth of thecontainer 6 so that all material 24 can be completely consumed. In drawings areference numeral 25 indicates a bottom plate for preventing the movablebottom body 23 from dropping off from the rear end of thecontainer 6. Thebottom plate 25 is inserted into the peripheral surface of the opened rear end of thecontainer 6. At the same time, thebottom plate 25 functions as a reinforcement member for preventing the deformation of the container by outside forces in order to keep the close contact of the slide edges 23B and 23C with the inside of thecontainer 6. Thebottom plate 25 has, at its center, a projectedbar 25A which is projected into thecylindrical portion 23D of thebottom body 23 to restrict the rearward movement of thebottom body 23. Thebottom plate 25 is provided with a plurality ofair passages 25B for preventing air pressure in arear space 34 defined by thebottom body 23 and thebottom plate 25 from becoming negative when thebottom plate 25 is moved forward during the use of the brush 1. - The operatin of the brush 1 will be explained with reference to Figs. 3 to 7.
- The
handle 2 is held in one hand in the state shown in Fig. 3. When the brush 1 is used, the bristle-plantedrod 3 is pushed rearward or toward thecontainer 6 by putting a thumb on theoperational projection 11, by pushing the tip of therod 3 with the other hand, or by pressing the tip of therod 3 against something. The rear portion of therod 3 is pushed into thehandle 2 along the bearingportion 9 as shown in Fig. 4 with theoperational pipe 12 being pushed to advance in the handlemain body 5. - When the
rod 3 is pushed into thehandle 2 as shown in Fig. 4, theoperational pipe 12 is moved rearward and the front end of theoperational bar 22 abuts against thevalve plate 19B to cause thevalve body 19 to be shrunk or crushed so that the front opening of theconduit 32 is opened while its rear end abuts against therear valve body 20 thereby to close tightly thesuction hole 18. - Then the
rod 3 is freed from the push so as to cause the repulsive force of thecompressed spring 17 to push back therod 3 and thepipe 12 to their respective forward positions. At this time the pressure in thesuction chamber 21 of thebody 5 becomes negative, as a result, thematerial 24 in thecontainer 6 is sucked into thesuction chamber 21 of thebody 5 through thesuction hole 18 of the valve seat member 16 (Fig. 5). - When the
valve portion 15 is slid forward, thefront lip portion 15A is forced to expand radially thereby obtaining a close contact with the inner peripheral wall of thebody 5. Further, theforward valve body 9 closes theconduit 32. Accordingly, air or dirty water does not enter or permeate into the inside of thesuction chamber 21 in a negative pressure condition through gaps of sliding portions of the bearingportion 9. The suction results in a negative pressure in thecontainer 6 to cause the movablebottom body 23 to advance for a short distance in close contact with the inside peripheral wall of thecontainer 6. - The
rod 3 is again pushed rearward as described above. This time theforward valve body 19 opens theconduit 32 of thepipe 12 and therear valve body 20 closes thesuction hole 18 of thevalve seat member 16. The material sucked in thesuction chamber 21 is fed into thehole 31 and thematerial passage 8 of the rod 3 (Fig. 6). Thereafter, therod 3 is freed from the push, and the material 24 in thesuction chamber 21 stops flowing forward and"the material 24 in thecontainer 6 is sucked from thecontainer 6 into thesuction chamber 21 of the body 5 (Fig. 7). Similarly as described above this suction causes the movablebottom body 23 in thecontainer 6 to move forward in response to the sucked amount of thematerial 24. - When the brush 1 is initially used, this operation is repeated two or three times to fill the
body 5, theconduit 32 and thematerial passage 8 with thematerial 24. After this, one push of therod 3 feeds an amount of the material 24 suitable for one operation onto the bristle-plantedsurface 3A. Thus, the brush 1 is ready for use. Individually if the amount of the material 24 fed onto thesurface 3A is not enough, twice- or more than twice- pushes will be given. - When the material 24 in the
container 6 has run out, thecontainer 6 is unscrewed from the rear end of thebody 5, a cap (not shown) screwed on afresh container 6 at themale thread 6A thereof is disengaged, and themale thread 6A of the fresh container is engaged with thefemale thread 5A of thebody 5. Then immediately the brush 1 can be again used continuously. When the opening of thematerial passage 8 opening on the bristle-planting surface 3A of therod 3 may become dry during a continuous use, the whole bristles 7 may be covered with acap 26 as shown by a phantom line in Fig. 1. - In this invention, the
operational bar 22 is provided between the forward andrear valve bodies valve bodies bar 22 can ensure a reliable alternative movement of the two valve bodies as shown in Figs. 4 to 7. Further, if the length of thebar 22 is properly adjusted, the necessary supply of the material 24 to thesurface 3A can be ensured. - Furthermore, as the
forward valve body 19 is an elastic valve member which can shrink and expand by itself, a special coil spring for urging a valve body toward the front opening of thepipe 12 is not necessary thereby to make the construction of a valve mechanism simple. - As described above, the brush 1 of this invention comprises the bristle-planted
rod 3 having theoperational projection 11, and by the rod being pushed toward themain body 5, it can feed a cartain amount of the material 24 onto the bristle-plantedsurface 3A. Advantageously this makes it possible to use the brush with one touch of operation. Besides, since one push of therod 3 feeds a predetermined amount of the material, its users do not need to pay attention to how much the material should be squeezed for one operation as they do with the conventional operation and wasteful use of excessive material can be avoided. Furthermore, thematerial 24 is fed by simply pushing therod 3. Accordingly, when the brush is used as a toothbrush, even infants and children can use the brush 1 easily. Additionally thematerial container 6 is easily detached from themain body 5 and disposable, and economically themain body 5 of the brush can be used for a long time. - Especially in the brush 1 of this invention, the movable
bottom body 23 moves forward in response to a decrease of the material 24 in the con -tainer 6 when therod 3 is pushed rearward to feed the material 24 toward therod 3. This perfectly prevents air from being sucked from the outside into the material 24 in thecontainer 6. It is desirable in terms of hygiene that the material can be fed in a perfectly sealed condition. Among others, the brush 1 of this invention comprises a small number of components and can be easily fabricated. - In the above embodiments, on the head of the
rod 3 are planted a great number of fine or thick bristles for applying thematerial 24. However, instead of the bristles, a piece of sponge, a piece of rubber or a member having a convex-concave surface for applying thematerial 24 thereon may be attached to the head of therod 3.
Claims (14)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60022042A JPS61181405A (en) | 1985-02-08 | 1985-02-08 | Toothbrush |
JP22042/85 | 1985-02-08 | ||
JP60092877A JPS61249404A (en) | 1985-04-30 | 1985-04-30 | Drug applicator |
JP92877/85 | 1985-04-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0193299A1 EP0193299A1 (en) | 1986-09-03 |
EP0193299B1 true EP0193299B1 (en) | 1989-11-29 |
Family
ID=26359203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86300810A Expired EP0193299B1 (en) | 1985-02-08 | 1986-02-06 | Brush for applying material in liquid or emulsion form |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0193299B1 (en) |
KR (1) | KR880001673B1 (en) |
CN (1) | CN1012935B (en) |
AU (1) | AU588276B2 (en) |
BR (1) | BR8600525A (en) |
DE (1) | DE3667132D1 (en) |
DK (1) | DK160735C (en) |
FI (1) | FI84013C (en) |
NO (1) | NO860392L (en) |
NZ (1) | NZ215055A (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2194728A (en) * | 1985-12-23 | 1988-03-16 | Gary Martin Foy | Handpump mouthwash/toothbrush unit |
US4963046A (en) * | 1987-05-13 | 1990-10-16 | Kao Corporation | Toothbrush |
FR2629322B1 (en) * | 1988-03-29 | 1992-01-03 | Morin Philippe | TOOTHBRUSH WITH INCORPORATED PASTE TANK |
NL8900170A (en) * | 1989-01-24 | 1990-08-16 | Douwe Egberts Tabaksfab | DOSAGE HOLDER. |
FR2734695B1 (en) * | 1995-05-29 | 1997-08-14 | Martin Joseph | COMPACT ASSEMBLY: TOOTHBRUSH + LIQUID TOOTHPASTE |
US5871297A (en) * | 1997-04-03 | 1999-02-16 | Rogers; Thomas L. | Fluid dispenser |
JP4726308B2 (en) * | 2001-02-16 | 2011-07-20 | 三菱鉛筆株式会社 | Liquid applicator |
US8444416B2 (en) * | 2005-04-26 | 2013-05-21 | Braun Gmbh | Valves for personal care devices |
US7648085B2 (en) | 2006-02-22 | 2010-01-19 | Rain Bird Corporation | Drip emitter |
DE102009014446B4 (en) * | 2009-03-23 | 2013-12-12 | Gilltec Gmbh | Application instrument for dental materials and application unit |
KR101347047B1 (en) * | 2012-04-23 | 2014-01-10 | 주식회사 장유산업 | Brush for Fruit Stalk application tool |
WO2014119977A1 (en) * | 2013-02-04 | 2014-08-07 | BURBO, Aleksandrs | Toothbrush with toothpaste container and dosing trigger |
CN105433585A (en) * | 2015-11-24 | 2016-03-30 | 无锡普瑞腾传动机械有限公司 | Coating line self-cleaning hairbrush assembly |
CN105433588A (en) * | 2015-11-24 | 2016-03-30 | 无锡普瑞腾传动机械有限公司 | Coating line self-cleaning hairbrush |
CN106388242B (en) * | 2016-10-13 | 2018-10-19 | 广州铁路职业技术学院 | Integral type toothbrush |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3248022A (en) * | 1963-06-21 | 1966-04-26 | Valve Corp Of America | Atomizer pump |
US4082223A (en) * | 1975-12-06 | 1978-04-04 | Yoshino Kogyosho Co., Ltd. | Trigger type spraying device |
DE3467690D1 (en) * | 1983-04-20 | 1988-01-07 | Sasuke Endo | Toothbrush |
-
1986
- 1986-02-03 FI FI860495A patent/FI84013C/en not_active IP Right Cessation
- 1986-02-05 NZ NZ215055A patent/NZ215055A/en unknown
- 1986-02-05 NO NO860392A patent/NO860392L/en unknown
- 1986-02-06 EP EP86300810A patent/EP0193299B1/en not_active Expired
- 1986-02-06 DE DE8686300810T patent/DE3667132D1/en not_active Expired - Lifetime
- 1986-02-06 BR BR8600525A patent/BR8600525A/en not_active IP Right Cessation
- 1986-02-07 DK DK061186A patent/DK160735C/en not_active IP Right Cessation
- 1986-02-07 CN CN86101240A patent/CN1012935B/en not_active Expired
- 1986-02-07 AU AU53320/86A patent/AU588276B2/en not_active Ceased
- 1986-02-07 KR KR1019860000876A patent/KR880001673B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI860495A (en) | 1986-08-09 |
AU588276B2 (en) | 1989-09-14 |
DK61186A (en) | 1986-08-09 |
NO860392L (en) | 1986-08-11 |
EP0193299A1 (en) | 1986-09-03 |
FI84013B (en) | 1991-06-28 |
KR860006236A (en) | 1986-09-09 |
FI84013C (en) | 1991-10-10 |
DK160735B (en) | 1991-04-15 |
NZ215055A (en) | 1987-03-06 |
KR880001673B1 (en) | 1988-09-06 |
FI860495A0 (en) | 1986-02-03 |
DK61186D0 (en) | 1986-02-07 |
BR8600525A (en) | 1986-10-21 |
CN86101240A (en) | 1986-08-13 |
DK160735C (en) | 1991-09-30 |
CN1012935B (en) | 1991-06-26 |
AU5332086A (en) | 1986-08-14 |
DE3667132D1 (en) | 1990-01-04 |
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