EP0916754B1 - A non-contact doubling and twisting apparatus in a double twister for a filament - Google Patents
A non-contact doubling and twisting apparatus in a double twister for a filament Download PDFInfo
- Publication number
- EP0916754B1 EP0916754B1 EP19980402827 EP98402827A EP0916754B1 EP 0916754 B1 EP0916754 B1 EP 0916754B1 EP 19980402827 EP19980402827 EP 19980402827 EP 98402827 A EP98402827 A EP 98402827A EP 0916754 B1 EP0916754 B1 EP 0916754B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- disc
- hole
- top guide
- tenser
- 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 - Lifetime
Links
- 241001589086 Bellapiscis medius Species 0.000 title claims description 19
- 238000004804 winding Methods 0.000 claims description 8
- 241000237858 Gastropoda Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/86—Multiple-twist arrangements, e.g. two-for-one twisting devices ; Threading of yarn; Devices in hollow spindles for imparting false twist
- D01H7/868—Yarn guiding means, e.g. guiding tubes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/86—Multiple-twist arrangements, e.g. two-for-one twisting devices ; Threading of yarn; Devices in hollow spindles for imparting false twist
Definitions
- This invention relates a non-contact doubling and twisting apparatus, with which both the twisted yarn and the filament yarn or the spun yarn can be doubled and twisted by using a fly disc of a two for one twister for a filament, and, more particularly, a non-contact doubling and twisting apparatus, wherein as yarn is input into a top guide by the disc hole of a fly disc since a yarn guide is newly mounted between a tenser and a top guide placed on the top of a spindle by converting the yarn guide of the two for one twister and it is designed to pass through a slot of a hollow, a yarn-twisting zone, at a non-contact state, a non-contact doubling and twisting apparatus can perform high speed doubling and twisting operations as well as it can take an advantage of a covering effect.
- This invention is intended to increase the efficiency of doubling and twisting operation by guiding yarn into a yarn-twisting zone at a non-contact state as well as to improve unwinding characteristic at the time when the doubled yarn which is combined with more than two kinds of yarn gets unwound from a bobbin in the two for one twister for a filament.
- this invention Compared with the conventional method, this invention has much improved productivity and much simplified operation end can reduce production cost. Also, as this invention can result in a covering effect relatively easily by endowing doubled yarn made of more than two kinds of yarns with many twisting operations, it is intended to provide a covering yarn.
- a non-contact doubling and twisting apparatus which is characterized by further comprising a yarn guide 20 having a fly disc 4 which is located between a top guide 3 and a tenser 5, mounted to be rotated freely and has a disc hole 12 through which doubled yarn can pass.
- a non-contact doubling and twisting apparatus in a double twister wherein yarn guide 20 is integrally formed with a top guide holder 16 having a through hole, a cover 17 for fixing the top guide holder and a fly disc 4 having a disc hole 12, and wherein a ball bearing 15 is mounted in the inner circumferential surface of a cover 17, and a fly disc shaft 14 having a through hole which is connected with the through hole of the top guide holder 16, is inserted into the said ball bearing 15, so that the inner circumferential surface of the said ball bearing 15 gets in contact with the outer circumferential surface of a fly disc shaft 14.
- a non-contact doubling and twisting apparatus in a double twister according to claim 1, wherein a disc hole 12 is rotated circumferentially having the same diameter as or longer diameter than the maximum diameter of a yarn winding layer wound on a bobbin 1 or the diameter of a tenser disc 6.
- FIG. 1 is a flow diagram showing the entire configuration of a two for one twister for a filament of this invention.
- the doubled yarn 2 which is made of more than two kinds of yarn and wound on a bobbin 1, passes through a disc hole 12 of a fly disc 4, is input into a ceramic top guide 3, and is twisted passing through a tenser 5 having a hollow and the yarn guiding pipe 26.
- the yarn guide 20 is connected to the top of a tenser 5 by a fly disc shaft 14 which can be inserted to be connected to the tenser 5 screwed on the top of a yarn guiding pipe 26. Also, there is a disc hole 12, through which the supplying yarn 2 can pass, on a round shaped fly disc 4, which can be freely rotated. The supplying yarn 2 which is to be unwound from the bobbin can be easily unwound by the rotating force of the fly disc 4 and the unwound yarn can pass through the rotating disc hole 12 and be input into the top guide 3.
- the spindle 7 is rotated by a flat belt 9 to which a driving force of a motor (not shown in the drawing) is delivered.
- the marks 24, 24' are guide rollers for winding the doubled yarn, the number 25 is a tension adjustment and the number 18 is a tenser holder.
- FIG. 2 through FIG. 4 show a yarn guide 20 which is used for the non-contact doubling and twisting apparatus in a double twister of this invention, wherein yarn guide 20 is integrally formed with a top guide holder 16 having a through hole, a cover 17 for fixing the top guide holder and a round-shaped fly disc 4 having a disc hole 12 through which the yarn can pass, and wherein a ball bearing 15 is mounted in the inner circumferential surface of a cover 17, and a fly disk shaft 14 having a through hole which is connected with the through hole of the top guide holder 16, is inserted into the said ball bearing 15, so that the inner circumferential surface of the said ball bearing 15 gets in contact with the outer circumferential surface of a fly disc shaft 14. Also the ceramic top guide 3 is inserted into a through hole of the top guide holder 16.
- the disc hole 12 placed on the fly disc 4 is rotated circumferentially having the same diameter as or longer diameter than the maximum diameter of the winding layer wound on the bobbin 1 or the diameter of a tenser disc 6.
- the doubled yarn 2 which is wound on the bobbin 1 is input into the top guide 3 after passing through a disc hole 12.
- the fly disc 4 is rotated continuously by the tension of the yarn 2 which is input into the top guide 3.
- the yarn 2, which gets unwound from the bobbin 1 is not contacted with a tenser disc 6 and the yarn which is wound on the bobbin is unwound smoothly.
- the ballooning tension between the eyelet 8 and the snail wire 11 is maintained equally and the outer circumference of the fly disc 4 smoothes yarn-guiding operation between the snail wire 11 and the eyelet 8.
- the yarn is guided by the disc hole 12 which is rotated circumferentially having the same diameter as or longer diameter than the maximum diameter of yarn winding layer wound on the bobbin 1 or the diameter or a tenser disc 6, the supplied yarn is unwound easily from the bobbin by the relation of the fly disc 4. Also, the unwound yarn is not contacted with the yarn winding layer or the tenser disc 6 and is input into the top guide 3, so that it prevents the supplying yarn from being cut and it can also increase the efficiency of doubling yarns.
- the fly disc 4 is rotated continuously by the tension of the yarn input into the top guide 3 from the bobbin 1.
- the yarn input into the top guide 3 by the rotation of the disc hole 12 is twisted evenly by the relation of the rotary disc 10 while passing the yarn guiding pipe 26, without an additional adjustment of yarn tension.
- the doubled yarn comprising both rubber yarn and spun yarn such as cotton yarn or filament yarn is twisted to have many tangles in the yarn-twisting zone, it is possible to get a covering yarn since the rubber yarn is located in the center and the spun yarn or the polyester filament yarn is formed on the surface and twisted evenly.
- the doubled yarn which is twisted in the yarn guiding pipe 26, is twisted evenly by the rotation of the rotary disc 10, comes out of the yarn guiding pipe 26 through the eyelet 8, and is wound in the conventional cylinder through the snail wire 11.
- Ballooning occurs between the eyelet 8 and snail wire 11 and the quality of the doubled yarn is controlled according to the size of the ballooning.
- the yarn-twisting zone and this part the detailed description will be emitted since they are the same as the zone of the conventional two for one twister.
- the size of ballooning is designed to be' controlled at a user's discretion by controlling the position of the snail wire 11 up and down.
- this invention has an advantage in that even twisted yarn an be made without using an additional tension adjustment apparatus for yarn since doubled yarn, both threads of which have the same yarn tension is guided into the yarn-twisting zone.
- this invention at a conventional two for one twister, by installing a fly disc 4 which is rotated on the top of the tenser 5 and inputting the supplying yarn 2 into the top guide 3 by the disc hole 12 which is rotated circumferentially having the same diameter as or larger diameter than that of a tenser disc 6 or the maximum diameter of winding layer wound on the bobbin, it is possible to improve the unwinding characteristics of yarn and to prevent the supplying yarn from being cut. Also, with only simple conversion said above, it is possible to achieve high speed doubling and twisting operations as well as to manufacture the covering yarn easily.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
This invention relates a non-contact doubling and
twisting apparatus, with which both the twisted yarn and
the filament yarn or the spun yarn can be doubled and
twisted by using a fly disc of a two for one twister for
a filament, and, more particularly, a non-contact
doubling and twisting apparatus, wherein as yarn is input
into a top guide by the disc hole of a fly disc since a
yarn guide is newly mounted between a tenser and a top
guide placed on the top of a spindle by converting the
yarn guide of the two for one twister and it is designed
to pass through a slot of a hollow, a yarn-twisting zone,
at a non-contact state, a non-contact doubling and
twisting apparatus can perform high speed doubling and
twisting operations as well as it can take an advantage
of a covering effect.
In a conventional double twister, doubled yarn which
gets unwound from a bobbin is input into a top guide 3,
is twisted passing through a tenser 5 having 2 hollow and
a yarn guiding pipe 26, passes through an eyelet 8 and is
wound on a cylinder 13,
In the case of a conventional two for one twister,
since the yarn, which is wound on the bobbin, is input
into the top guide 3 directly, at the time of unwinding
operation, the yarn contacts with the top winding layer
of the bobbin and contact resistance occurs since it
contacts with an edge of the tenser disc 6 before it is
input to the top guide 3. Also, at the time of high speed
rotation, since the contact resistance is increased, the
unwinding characteristics is decreased and, as is often
the case, the supplied yarn is sometimes cut.
This invention is intended to increase the
efficiency of doubling and twisting operation by guiding
yarn into a yarn-twisting zone at a non-contact state as
well as to improve unwinding characteristic at the time
when the doubled yarn which is combined with more than
two kinds of yarn gets unwound from a bobbin in the two
for one twister for a filament.
Compared with the conventional method, this
invention has much improved productivity and much
simplified operation end can reduce production cost.
Also, as this invention can result in a covering effect
relatively easily by endowing doubled yarn made of more
than two kinds of yarns with many twisting operations, it
is intended to provide a covering yarn.
Accordingly, in order to overcome such drawbacks in
the conventional art, it is therefore an object of the
present invention to provide a non-contact doubling and
twisting apparatus which can result in very good
efficiency for the doubling and twisting operation by
guiding the yarn into a yarn-twisting zone at the non-contact
state.
It is another object to provide a non-contact
doubling and twisting apparatus which can result in a
very good unwinding characteristic at the time when the
doubled yarn which is combined wilh more than two kinds
of yarn gets unwound from a bobbin in the two for one
twister for a filament.
It is still another object to provide a non-contact
doubling and twisting apparatus which can result in good
productivity, comparing with the conventional and
disclosed doubling and twisting method.
It is yet still another object to provide a non-contact
doubling and twisting apparatus which can reduce
the production cost because of more simplified process
than the conventional method.
It is a further object to provide a covering yarn as
it can get a covering effect relatively easily by
endowing a doubled yarn made of more than two kinds of
yarn with many twisting operations.
To achieve these and other advantages and in
accordance with the purpose of the present invention, as
embodied and broadly described, in a conventional double
twister, wherein doubled yarn which gets unwound from a
bobbin is input into a top guide 3, is twisted passing
through a tenser 5 having a hollow and a yarn guiding
pipe 26, wherein the tenser 5 is screwed to be combined
to the yarn guiding pipe 26, passes through an eyelet 8
and is wound on a cylinder 13, a non-contact doubling and
twisting apparatus is provided, which is characterized by
further comprising a yarn guide 20 having a fly disc 4
which is located between a top guide 3 and a tenser 5,
mounted to be rotated freely and has a disc hole 12
through which doubled yarn can pass. In the said non-contact
doubling and twisting apparatus of the present
invention, doubled yarn which gets unwound from a bobbin,
passes through the disc hole 12, is input into a top
guide 3, is twisted passing through a tenser 5 having a
hollow and a yarn guiding pipe 26, wherein the tenser 5
is screwed to be combined to the yarn guiding pipe 26,
passes through as eyelet 8 and is wound on a cylinder 13.
According to another aspect of the present
invention, there is also provided a non-contact doubling
and twisting apparatus in a double twister according to
claim 1, wherein yarn guide 20 is integrally formed with
a top guide holder 16 having a through hole, a cover 17
for fixing the top guide holder and a fly disc 4 having a
disc hole 12, and wherein a ball bearing 15 is mounted in
the inner circumferential surface of a cover 17, and a
fly disc shaft 14 having a through hole which is
connected with the through hole of the top guide holder
16, is inserted into the said ball bearing 15, so that
the inner circumferential surface of the said ball
bearing 15 gets in contact with the outer circumferential
surface of a fly disc shaft 14.
According to another aspect of the present
invention, there is also provided a non-contact doubling
and twisting apparatus in a double twister according to
claim 1, wherein a disc hole 12 is rotated
circumferentially having the same diameter as or longer
diameter than the maximum diameter of a yarn winding
layer wound on a bobbin 1 or the diameter of a tenser
disc 6.
A more complete appreciation of the invention, and
many of the attendant advantages thereof, will be readily
apparent as the same becomes better understood by
reference to the following detailed description when
considered in conjunction with the accompanying drawings
in which like reference symbols represent the same or
similar components, wherein:
The detailed description of this invention is as
follows;
FIG. 1 is a flow diagram showing the entire
configuration of a two for one twister for a filament of
this invention. The doubled yarn 2, which is made of more
than two kinds of yarn and wound on a bobbin 1, passes
through a disc hole 12 of a fly disc 4, is input into a
ceramic top guide 3, and is twisted passing through a
tenser 5 having a hollow and the yarn guiding pipe 26.
The yarn guide 20 is connected to the top of a
tenser 5 by a fly disc shaft 14 which can be inserted to
be connected to the tenser 5 screwed on the top of a yarn
guiding pipe 26. Also, there is a disc hole 12, through
which the supplying yarn 2 can pass, on a round shaped
fly disc 4, which can be freely rotated. The supplying
yarn 2 which is to be unwound from the bobbin can be
easily unwound by the rotating force of the fly disc 4
and the unwound yarn can pass through the rotating disc
hole 12 and be input into the top guide 3.
While the input yarn is passing through the yarn
guiding pipe and the tenser 5 having a hollow, yarn is
twisted and comes out of an eyelet 8. After that, the
yarn passes touching the circumference of the fly disc 4
and is wound smoothly by passing a snail wire 11,
In the meantime, the spindle 7 is rotated by a flat
belt 9 to which a driving force of a motor (not shown in
the drawing) is delivered.
In the drawings, the marks 24, 24' are guide rollers
for winding the doubled yarn, the number 25 is a tension
adjustment and the number 18 is a tenser holder.
FIG. 2 through FIG. 4 show a yarn guide 20 which is
used for the non-contact doubling and twisting apparatus
in a double twister of this invention, wherein yarn guide
20 is integrally formed with a top guide holder 16 having
a through hole, a cover 17 for fixing the top guide
holder and a round-shaped fly disc 4 having a disc hole
12 through which the yarn can pass, and wherein a ball
bearing 15 is mounted in the inner circumferential
surface of a cover 17, and a fly disk shaft 14 having a
through hole which is connected with the through hole of
the top guide holder 16, is inserted into the said ball
bearing 15, so that the inner circumferential surface of
the said ball bearing 15 gets in contact with the outer
circumferential surface of a fly disc shaft 14. Also
the ceramic top guide 3 is inserted into a through hole
of the top guide holder 16.
The disc hole 12 placed on the fly disc 4 is rotated
circumferentially having the same diameter as or longer
diameter than the maximum diameter of the winding layer
wound on the bobbin 1 or the diameter of a tenser disc 6.
The following is the working operation and the
effect of this invention configured as the above.
The doubled yarn 2 which is wound on the bobbin 1 is
input into the top guide 3 after passing through a disc
hole 12. At this time, the fly disc 4 is rotated
continuously by the tension of the yarn 2 which is input
into the top guide 3. With the disc hole, which is
placed on the fly disc, being rotated circumferentially
while maintaining the distance having a constant length,
the yarn 2, which gets unwound from the bobbin 1, is not
contacted with a tenser disc 6 and the yarn which is
wound on the bobbin is unwound smoothly. Also, the
ballooning tension between the eyelet 8 and the snail
wire 11 is maintained equally and the outer circumference
of the fly disc 4 smoothes yarn-guiding operation between
the snail wire 11 and the eyelet 8.
In this invention, since the yarn is guided by the
disc hole 12 which is rotated circumferentially having
the same diameter as or longer diameter than the maximum
diameter of yarn winding layer wound on the bobbin 1 or
the diameter or a tenser disc 6, the supplied yarn is
unwound easily from the bobbin by the relation of the fly
disc 4. Also, the unwound yarn is not contacted with the
yarn winding layer or the tenser disc 6 and is input into
the top guide 3, so that it prevents the supplying yarn
from being cut and it can also increase the efficiency of
doubling yarns.
Also, the fly disc 4 is rotated continuously by the
tension of the yarn input into the top guide 3 from the
bobbin 1. The yarn input into the top guide 3 by the
rotation of the disc hole 12 is twisted evenly by the
relation of the rotary disc 10 while passing the yarn
guiding pipe 26, without an additional adjustment of yarn
tension. In this case, if the doubled yarn comprising
both rubber yarn and spun yarn such as cotton yarn or
filament yarn is twisted to have many tangles in the
yarn-twisting zone, it is possible to get a covering yarn
since the rubber yarn is located in the center and the
spun yarn or the polyester filament yarn is formed on the
surface and twisted evenly.
As the above, the doubled yarn which is twisted in
the yarn guiding pipe 26, is twisted evenly by the
rotation of the rotary disc 10, comes out of the yarn
guiding pipe 26 through the eyelet 8, and is wound in the
conventional cylinder through the snail wire 11.
Ballooning occurs between the eyelet 8 and snail
wire 11 and the quality of the doubled yarn is controlled
according to the size of the ballooning. However, as for
the yarn-twisting zone and this part, the detailed
description will be emitted since they are the same as
the zone of the conventional two for one twister.
However, in this invention, the size of ballooning
is designed to be' controlled at a user's discretion by
controlling the position of the snail wire 11 up and
down.
Also, this invention has an advantage in that even
twisted yarn an be made without using an additional
tension adjustment apparatus for yarn since doubled yarn,
both threads of which have the same yarn tension is
guided into the yarn-twisting zone.
According to this invention, at a conventional two
for one twister, by installing a fly disc 4 which is
rotated on the top of the tenser 5 and inputting the
supplying yarn 2 into the top guide 3 by the disc hole 12
which is rotated circumferentially having the same
diameter as or larger diameter than that of a tenser disc
6 or the maximum diameter of winding layer wound on the
bobbin, it is possible to improve the unwinding
characteristics of yarn and to prevent the supplying yarn
from being cut. Also, with only simple conversion said
above, it is possible to achieve high speed doubling and
twisting operations as well as to manufacture the
covering yarn easily.
It will be apparent to those skilled in the art that
various modifications can be made in A NON-CONTACT
DOUBLING AND TWISTING APPARATUS IN A DOUBLE TWISTER FOR A
FILAMENT of the present invention, without departing from
the spirit of the invention. Thus, it is intended that
the present invention covers such modifications as well
as variations thereof, within the scope of the appended
claims and their equivalents.
Claims (3)
- In a double twister, wherein doubled yarn which gets unwound from a bobbin is input into a top guide (3), is twisted passing through a tenser (5) having a hollow and a yarn guiding pipe (26), passes through an eyelet (8) and is wound on a cylinder (13)wherein doubled yarn which gets unwound from a bobbin, pass through the disc hole (12), is input into a top guide (3) is twisted passing through a tenser (5) having a hollow and a yarn guiding pipe (26), passes through an eyelet (8) and is wound on a cylinder (13).a non-contact doubling and twisting apparatus characterized by further comprising a yarn guide (20) having a fly disc (4) which is located between a top guide (3) and a tenser (5), mounted to be rotated freely and has a disc hole (12) through which doubled yarn can pass,
- The non-contact doubling and twisting apparatus in a double twister according to claim 1,
wherein yarn guide (20) is integrally formed with a top guide holder 16 having a through hole, a cover (17) for fixing the top guide holder and a fly disc (4) having a disc hole (12), and
wherein a ball bearing (15) is mounted in the inner circumferential surface of a cover (17), and a fly disc shaft (14) having a through hole which is connected with the through hole of the top guide holder (16), is inserted into the said ball bearing (15), so that the inner circumferential surface of the said ball bearing (15) gets in contact with the outer circumferential surface of a fly disc shaft (14). - The non-contact doubling and twisting apparatus in a double twister according to claim 1,
wherein a disc hole (12) is rotated circumferentially having the same diameter as or longer diameter than the maximum diameter of yarn-winding layer wound on the bobbin (1) or the diameter of a tenser disc (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR9759942 | 1997-11-14 | ||
| KR1019970059942A KR19990039746A (en) | 1997-11-14 | 1997-11-14 | Non-contact jointing device for manufacturing twisted yarn using double twister for filament |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0916754A2 EP0916754A2 (en) | 1999-05-19 |
| EP0916754A3 EP0916754A3 (en) | 1999-10-13 |
| EP0916754B1 true EP0916754B1 (en) | 2003-10-15 |
Family
ID=19524717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19980402827 Expired - Lifetime EP0916754B1 (en) | 1997-11-14 | 1998-11-16 | A non-contact doubling and twisting apparatus in a double twister for a filament |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0916754B1 (en) |
| KR (1) | KR19990039746A (en) |
| DE (1) | DE69818945T2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUD20020074A1 (en) * | 2002-04-04 | 2003-10-06 | Tecnotessile Societa Naz Dir I | BALLON DIVIDER-SEPARATOR DEVICE FOR TWISTING / TWISTING YARN EQUIPMENT |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1004815A (en) * | 1947-07-22 | 1952-04-03 | High production advanced spindle | |
| BE491010A (en) * | 1948-10-08 | |||
| FR949819A (en) * | 1949-06-09 | 1949-09-09 | Spindle especially for double torsion | |
| US4782653A (en) * | 1985-10-15 | 1988-11-08 | Murata Kikai Kabushiki Kaisha | Device for displacing a tenser in a two-for-one twister |
| JPH04114575U (en) * | 1991-03-26 | 1992-10-08 | 村田機械株式会社 | double twister flyer |
| JPH0719373U (en) * | 1993-09-13 | 1995-04-07 | 株式会社ヤマダ | Disc type flyer for compound yarn that does not require a pan cover |
| KR100696067B1 (en) * | 2006-08-19 | 2007-03-22 | 주식회사 도화종합기술공사 | Manhole for Waste-water purification disposal |
-
1997
- 1997-11-14 KR KR1019970059942A patent/KR19990039746A/en active IP Right Grant
-
1998
- 1998-11-16 DE DE69818945T patent/DE69818945T2/en not_active Expired - Fee Related
- 1998-11-16 EP EP19980402827 patent/EP0916754B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990039746A (en) | 1999-06-05 |
| EP0916754A3 (en) | 1999-10-13 |
| DE69818945T2 (en) | 2004-07-22 |
| DE69818945D1 (en) | 2003-11-20 |
| EP0916754A2 (en) | 1999-05-19 |
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