CA1121584A - Yarn feeder - Google Patents
Yarn feederInfo
- Publication number
- CA1121584A CA1121584A CA000331978A CA331978A CA1121584A CA 1121584 A CA1121584 A CA 1121584A CA 000331978 A CA000331978 A CA 000331978A CA 331978 A CA331978 A CA 331978A CA 1121584 A CA1121584 A CA 1121584A
- Authority
- CA
- Canada
- Prior art keywords
- flanges
- pair
- driven gears
- yarn feeder
- rods
- 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
- 239000004744 fabric Substances 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
- D03D47/361—Drum-type weft feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
- B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
- B65H51/06—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate singly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
- B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Forwarding And Storing Of Filamentary Material (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A weft yarn feeder for use in shuttleless loom has a spool and a spindle extending rotatably through the shaft of the spool and supporting a pair of drive gears.
A plurality of yarn rods jointly defining generally cylindrical configuration around which a weft yarn is to be wound extend axially along the spool shaft. The end portions of the yarn rods are connected eccentrically to angularly spaced driven gears rotatably mounted on the flanges of the spool and with which the drive gears are held in driving mesh. The yarn rods and the driven gears are connected by pins extending loosely through radial slots in the spool flanges. The yarn rods are movable radially outwardly or inwardly in response to the turning of a knob fixed to the spindle.
A weft yarn feeder for use in shuttleless loom has a spool and a spindle extending rotatably through the shaft of the spool and supporting a pair of drive gears.
A plurality of yarn rods jointly defining generally cylindrical configuration around which a weft yarn is to be wound extend axially along the spool shaft. The end portions of the yarn rods are connected eccentrically to angularly spaced driven gears rotatably mounted on the flanges of the spool and with which the drive gears are held in driving mesh. The yarn rods and the driven gears are connected by pins extending loosely through radial slots in the spool flanges. The yarn rods are movable radially outwardly or inwardly in response to the turning of a knob fixed to the spindle.
Description
The present invention relates to a weft yarn feeder for use in shuttleless looms such as needle looms.
Known weft yarn feeders generally comprise a spool around which a weft yarn in wound and from which the weft yarn is fed or paid out at a constant rate to a filling carrier in response to the rotation ofthe spool in synchronism with operation of the filling carrier. There has been a need for a device incorporated in the weft yarn feeder for changing the rate of feed of the weft yarn so as to accommodate various yarn demands for different widths of fabric to be produced or so as to compensate for varying yarn stretchability due to different degrees of ambient temperature and humidity.
It is an object of the present invention to provide a yarn feeder having means for supplying a yarn at differ-ent rates of feecl at a constant speed of rotation of the yarn feeder.
Another ob~ect of the present invention is ~o pro~
vide a yarn feeder having a gear mechanlsm for continuously and smoothly changing the di~meter of yarn winding means.
According to the present invention, there is pro-vided a yarn feeder comprising: a spool having a hollow shaft and a pair of circular flanges on the ends of the hollow shaft, each of the circular flanges having a plurality of radial guide slots angularly spaced from each other; a spindle extending through the hollow shaft and rotatable therein; and a pair of spaced drive gears fixed to the shaft and disposed at the axial ends of the spool.
lS~
A plurality of spaced pairs of driven gears are rotata-bly mounted on the flanges, respectively, the driven gears in each pair being axially aligned with each other, the drive gears being held in driving mesh respectively with the pairs of the driven gears. A plurality of rods extend axially along and are disposed radially around the shaft, each of the rods having a pair of end portions connected eccentrically to the respective driven gears in one pair through a corresponding pair of the guide slots in the flange, whereby the rods can move radially outwardly from and inwardly to the shaft in response to rotation of the spindle.
The above and other objects, features and advantages of the present invention will become apparent from the following description when taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a schematic plan view of a needle loom in which a yarn feeder of the present invention is employed;
Fig. 2 is an enlarged perspective view of the yarn feeder;
Fig. 3 is a longitudinal cro~s section view of the yarn Eeeder of Fig. 2;
Fig. 4 is a cross section view taken along section line 4 - 4 of Fig. 3;
Fig. 5 is a view similar to Fig. 4, showing yarn rods displaced radially outwardly;
Fig. 6 is a cross section view taken along section line 6 - 6 of Fig. 3; and ' ~
. . . - :, : ' :
l~lZ~584 Fig. 7 is a cross section view taken along section line 7 - 7 of Fig. 3.
A weaving machine or loom 1 schematically illustrat-ed in Fig. 1 generally comprises a plurality of heddles
Known weft yarn feeders generally comprise a spool around which a weft yarn in wound and from which the weft yarn is fed or paid out at a constant rate to a filling carrier in response to the rotation ofthe spool in synchronism with operation of the filling carrier. There has been a need for a device incorporated in the weft yarn feeder for changing the rate of feed of the weft yarn so as to accommodate various yarn demands for different widths of fabric to be produced or so as to compensate for varying yarn stretchability due to different degrees of ambient temperature and humidity.
It is an object of the present invention to provide a yarn feeder having means for supplying a yarn at differ-ent rates of feecl at a constant speed of rotation of the yarn feeder.
Another ob~ect of the present invention is ~o pro~
vide a yarn feeder having a gear mechanlsm for continuously and smoothly changing the di~meter of yarn winding means.
According to the present invention, there is pro-vided a yarn feeder comprising: a spool having a hollow shaft and a pair of circular flanges on the ends of the hollow shaft, each of the circular flanges having a plurality of radial guide slots angularly spaced from each other; a spindle extending through the hollow shaft and rotatable therein; and a pair of spaced drive gears fixed to the shaft and disposed at the axial ends of the spool.
lS~
A plurality of spaced pairs of driven gears are rotata-bly mounted on the flanges, respectively, the driven gears in each pair being axially aligned with each other, the drive gears being held in driving mesh respectively with the pairs of the driven gears. A plurality of rods extend axially along and are disposed radially around the shaft, each of the rods having a pair of end portions connected eccentrically to the respective driven gears in one pair through a corresponding pair of the guide slots in the flange, whereby the rods can move radially outwardly from and inwardly to the shaft in response to rotation of the spindle.
The above and other objects, features and advantages of the present invention will become apparent from the following description when taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a schematic plan view of a needle loom in which a yarn feeder of the present invention is employed;
Fig. 2 is an enlarged perspective view of the yarn feeder;
Fig. 3 is a longitudinal cro~s section view of the yarn Eeeder of Fig. 2;
Fig. 4 is a cross section view taken along section line 4 - 4 of Fig. 3;
Fig. 5 is a view similar to Fig. 4, showing yarn rods displaced radially outwardly;
Fig. 6 is a cross section view taken along section line 6 - 6 of Fig. 3; and ' ~
. . . - :, : ' :
l~lZ~584 Fig. 7 is a cross section view taken along section line 7 - 7 of Fig. 3.
A weaving machine or loom 1 schematically illustrat-ed in Fig. 1 generally comprises a plurality of heddles
2 for separating a plurality of warp threads 3 to form warp sheds successively, a beat-up reed 4 movable back and forth to beat up an inserted filling 5 against the fell of a narrow fabric 6 being produced, a filling carrier 7 pivotable to place a filling 5 across the warp shed, and a selvage-forming latch needle 8 reciprocable alongside of the fabric 6 for catching and knitting loops of fillings 5 with previous filling loops. The loom 1 also includes a weft yarn feeder 9 actuatable in synchronism with the operation of the filling carrier 7 for positively advancing a weft 10, and a tension compensator 11 disposed between the filling carrier 7 and the weft yarn feeder 9 for keep-ing the weft 10 under constant ter.sion while the weft 10 is being supplied to the filling carrier 7.
As best shown in Figs. 2 and 3, the weft yarn ~eeder 9 comprises a spool 12 including a hollow shat 13 and a pair of circular flanges 14,15 on the ends of the hollow shaft 13. The circular flanges 14,15 have a pair of annular flanges or rims 16,L7, respectively, projecting axially away from each other. A pair of circular covers 18,19 are mounted on the rims 16,17, respectively. A pair of gear chambers 20,21 are provided between the flange 14 and the cover 18 and between the flange 15 and the cover 19, respectively.
.5~
The cover 18 has an axial attachment projection 22 having an axial recess 23 for lockingly receiving a drive shaft 24 (Fig. 1) that is rotatable about its own axis at a constant rate of speed.
A spindle 25 extends axially through the hollow shaft 13 and is rotatably supported by the covers 18,19.
A pair of axially spaced drive gears 26,27 are fixed to the spindle 25 and are located in the gear chambers 20,21, respectively, at the ends of the spool 12. The spindle 25 has an externally threaded end portion 28 projecting beyond the cover 19. ~ fastening nut 29 is threaded over the threaded end portion 28. A peripherally knurled knob 30 is fixed to the threaded end portion 28. The spindle 25 can be turned about its own axis by turning the knob 30 by hand, and can be nonrotatably held in position rela-tively to the cover 19 by tightening the fastening nut 29 against the cover 19.
In each of the gear chambers 20,21, a plurality of driven gears 31 or 32 (six in number in the illustrated embodiment) are rotatably supported on pins 33 mounted on the flange 14 or lS and the cover 18 or 19. The pins 33 are angularly spaced from each other and are located around the drive gears 26,27. The drive gears 26,27 are held in driving mesh with the driven gears 31,32, res-pectively. Each of the driven gears 31 in the gear chamber 20 is paired with and held in axial alignment with one of the driven gears 32 in the gear chamber 21. Adjacent ones of the driven gears 31 or 32 in the gear chambers 20 or 21 l~Z~384 are axially displaced from each other so as to prevent any interference or contact therebetween, as shown in Fig. 7.
As best illustrated in Figs. 4 and 5, each of the flanges 14,15 has a plurality of arcuate guide slots 34 angularly spaced equal distances from each other and extending generally radially of the hollow shaft 13. Each of the arcuate guide slots 34 extends substantially half-way about one of the pins 33. Each guide slot 34 includes a recessed shoulder 35 extending therealong. The arcuate guide slots 34 in the flange 14 are axially aligned with the arcuate guide slots 34 in the flange 15 and are paired therewith.
A plurality of yarn rods 36 of circular cross section extend axially along and are disposed radially around the hollow shaft 13. Each of the yarn rods 36 has a pair of end portions connected to a pair of the driven gears 31,32 through a pair of pins 37,38 connected eccentri-cally to the pair of the driven gears 31,32, respectively, and extending loosely through a pair o the slots 34,34 in the flanges 14,15, respectively. The end portions of each yarn rod 36 are slidably received on a pair of the recessed shoulders 35,35 in the flanges 14,15.
The weft yarn 10 is wound around the yarn rods 36 jointly forming a cylinder-like configuration~ The weft yarn 10 is positively fed along by rotation of the yarn feeder 9 about its own axis at a constant speed.
When it is necessary to change the rate of feed of ~z~s~
the weft yarn lO, the knob 30 is rotated to turn the spindle 25. The drive gears 36,37 are simultaneously rotated with the spindle 25 to cause the driven gears 31,32 to be turned on the pins 33. The pins 37,38 are then moved along the slots 34, whereupon the yarn rods 36 move radially outwardly or inwardly (Figs. 4 and 5).
Accordingly, the diameter of the cylinder-like configura-tion defined jointly by the yarn rods 36 and around which the weft yarn lO is to be wound is changed to provide a different rate of feed of the weft yarn 10 while the weft yarn feeder 9 is being rotated at the same speed.
Since the yarn rods 36 are supported and driven at both ends, they move smoothly and uniformly in a radial direction in response to the xotation of the driven gears 31,32. Such radial movement of the yarn rods 36 can be effected gradually with fine adjustment by the rotation of the knob 30.
Although a preferred embodiment has been shown and described in detail, it should be understood that various changes and modifications can be made thereirl with-out departing ~rom the scope of the appended claims.
As best shown in Figs. 2 and 3, the weft yarn ~eeder 9 comprises a spool 12 including a hollow shat 13 and a pair of circular flanges 14,15 on the ends of the hollow shaft 13. The circular flanges 14,15 have a pair of annular flanges or rims 16,L7, respectively, projecting axially away from each other. A pair of circular covers 18,19 are mounted on the rims 16,17, respectively. A pair of gear chambers 20,21 are provided between the flange 14 and the cover 18 and between the flange 15 and the cover 19, respectively.
.5~
The cover 18 has an axial attachment projection 22 having an axial recess 23 for lockingly receiving a drive shaft 24 (Fig. 1) that is rotatable about its own axis at a constant rate of speed.
A spindle 25 extends axially through the hollow shaft 13 and is rotatably supported by the covers 18,19.
A pair of axially spaced drive gears 26,27 are fixed to the spindle 25 and are located in the gear chambers 20,21, respectively, at the ends of the spool 12. The spindle 25 has an externally threaded end portion 28 projecting beyond the cover 19. ~ fastening nut 29 is threaded over the threaded end portion 28. A peripherally knurled knob 30 is fixed to the threaded end portion 28. The spindle 25 can be turned about its own axis by turning the knob 30 by hand, and can be nonrotatably held in position rela-tively to the cover 19 by tightening the fastening nut 29 against the cover 19.
In each of the gear chambers 20,21, a plurality of driven gears 31 or 32 (six in number in the illustrated embodiment) are rotatably supported on pins 33 mounted on the flange 14 or lS and the cover 18 or 19. The pins 33 are angularly spaced from each other and are located around the drive gears 26,27. The drive gears 26,27 are held in driving mesh with the driven gears 31,32, res-pectively. Each of the driven gears 31 in the gear chamber 20 is paired with and held in axial alignment with one of the driven gears 32 in the gear chamber 21. Adjacent ones of the driven gears 31 or 32 in the gear chambers 20 or 21 l~Z~384 are axially displaced from each other so as to prevent any interference or contact therebetween, as shown in Fig. 7.
As best illustrated in Figs. 4 and 5, each of the flanges 14,15 has a plurality of arcuate guide slots 34 angularly spaced equal distances from each other and extending generally radially of the hollow shaft 13. Each of the arcuate guide slots 34 extends substantially half-way about one of the pins 33. Each guide slot 34 includes a recessed shoulder 35 extending therealong. The arcuate guide slots 34 in the flange 14 are axially aligned with the arcuate guide slots 34 in the flange 15 and are paired therewith.
A plurality of yarn rods 36 of circular cross section extend axially along and are disposed radially around the hollow shaft 13. Each of the yarn rods 36 has a pair of end portions connected to a pair of the driven gears 31,32 through a pair of pins 37,38 connected eccentri-cally to the pair of the driven gears 31,32, respectively, and extending loosely through a pair o the slots 34,34 in the flanges 14,15, respectively. The end portions of each yarn rod 36 are slidably received on a pair of the recessed shoulders 35,35 in the flanges 14,15.
The weft yarn 10 is wound around the yarn rods 36 jointly forming a cylinder-like configuration~ The weft yarn 10 is positively fed along by rotation of the yarn feeder 9 about its own axis at a constant speed.
When it is necessary to change the rate of feed of ~z~s~
the weft yarn lO, the knob 30 is rotated to turn the spindle 25. The drive gears 36,37 are simultaneously rotated with the spindle 25 to cause the driven gears 31,32 to be turned on the pins 33. The pins 37,38 are then moved along the slots 34, whereupon the yarn rods 36 move radially outwardly or inwardly (Figs. 4 and 5).
Accordingly, the diameter of the cylinder-like configura-tion defined jointly by the yarn rods 36 and around which the weft yarn lO is to be wound is changed to provide a different rate of feed of the weft yarn 10 while the weft yarn feeder 9 is being rotated at the same speed.
Since the yarn rods 36 are supported and driven at both ends, they move smoothly and uniformly in a radial direction in response to the xotation of the driven gears 31,32. Such radial movement of the yarn rods 36 can be effected gradually with fine adjustment by the rotation of the knob 30.
Although a preferred embodiment has been shown and described in detail, it should be understood that various changes and modifications can be made thereirl with-out departing ~rom the scope of the appended claims.
Claims (7)
1. A yarn feeder comprising:
(a) a spool having a hollow shaft and a pair of circular flanges on the ends of said hollow shaft, each of said circular flanges having a plurality of radial guide slots angularly spaced from each other, each of said guide slots being arcuate in shape and extending substantially half way about the axis of one of said driven gears;
(b) a spindle extending through said hollow shaft and rotatable therein;
(c) a pair of spaced drive gears fixed to said shaft and disposed at the axial ends of said spool;
(d) a plurality of spaced pairs of driven gears rotatably mounted on said flanges, respectively, the driven gears in each pair being axially aligned with each other, said drive gears being held in driving mesh respectively with the pairs of the driven gears; and (e) a plurality of rods extending axially along and disposed radially around said shaft, each of said rods having a pair of end portions connected eccentrically to the respective driven gears in one pair and secured in said guide slots in the flanges, whereby said rods can move radially outwardly from and inwardly to said shaft in response to rotation of said spindle.
(a) a spool having a hollow shaft and a pair of circular flanges on the ends of said hollow shaft, each of said circular flanges having a plurality of radial guide slots angularly spaced from each other, each of said guide slots being arcuate in shape and extending substantially half way about the axis of one of said driven gears;
(b) a spindle extending through said hollow shaft and rotatable therein;
(c) a pair of spaced drive gears fixed to said shaft and disposed at the axial ends of said spool;
(d) a plurality of spaced pairs of driven gears rotatably mounted on said flanges, respectively, the driven gears in each pair being axially aligned with each other, said drive gears being held in driving mesh respectively with the pairs of the driven gears; and (e) a plurality of rods extending axially along and disposed radially around said shaft, each of said rods having a pair of end portions connected eccentrically to the respective driven gears in one pair and secured in said guide slots in the flanges, whereby said rods can move radially outwardly from and inwardly to said shaft in response to rotation of said spindle.
2. A yarn feeder according to claim 1, the axes of the driven gears on each of said flanges being angularly spaced from each other and located around one of said drive gears.
3. A yarn feeder according to claim 1, adjacent ones of the driven gears on each of said flanges being axially displaced from each other so as to prevent any interference therebetween.
4. A yarn feeder according to claim 1, said rods being circular in cross section.
5. A yarn feeder according to claim 1, said flanges having a pair of rims projecting away from each other, including a pair of covers mounted on said rims, respectively, and covering said drive and driven gears on said flanges.
6. A yarn feeder according to claim 5, one of said covers having attachment means for connecting with a drive shaft.
7, A yarn feeder according to claim 6, including a knob attached to an end of said spindle which extends beyond the other of said covers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53087979A JPS5932382B2 (en) | 1978-07-18 | 1978-07-18 | Weft feeding device |
| JP53-87979 | 1978-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1121584A true CA1121584A (en) | 1982-04-13 |
Family
ID=13929937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000331978A Expired CA1121584A (en) | 1978-07-18 | 1979-07-17 | Yarn feeder |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS5932382B2 (en) |
| AU (1) | AU523153B2 (en) |
| BR (1) | BR7904631A (en) |
| CA (1) | CA1121584A (en) |
| CH (1) | CH638843A5 (en) |
| DE (1) | DE2928696A1 (en) |
| ES (1) | ES482940A1 (en) |
| FR (1) | FR2431563A1 (en) |
| GB (1) | GB2027460B (en) |
| HK (1) | HK33487A (en) |
| IT (1) | IT1119028B (en) |
| MY (1) | MY8600203A (en) |
| NL (1) | NL7905415A (en) |
| SG (1) | SG47185G (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149532A (en) * | 1981-03-06 | 1982-09-16 | Tsudakoma Ind Co Ltd | Weft yarn storing apparatus for fluid jet type loom |
| JPS61146485A (en) * | 1984-12-19 | 1986-07-04 | 芝浦メカトロニクス株式会社 | Rectangular coordinate type robot mechanism |
| US4850544A (en) * | 1986-12-17 | 1989-07-25 | Sulzer Brothers Limited | Yarn metering bobbin |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE253371C (en) * | ||||
| GB615695A (en) * | 1946-10-07 | 1949-01-10 | James Manning | Improvements in looms for weaving having a stationary weft supply |
| FR1352859A (en) * | 1961-11-17 | 1964-02-21 | Lawson Engineering Co | Device and method for adjusting the stitch length of knitted fabrics |
| GB1135825A (en) * | 1965-05-18 | 1968-12-04 | Dobbie Ind Ltd | Method of skein dyeing yarn |
| GB1240461A (en) * | 1967-04-11 | 1971-07-28 | Fairbairn Lawson Ltd | Improvements in or relating to looms |
| DE1947727C3 (en) * | 1969-09-20 | 1975-10-09 | Karl 7477 Onstmettingen Frei | Thread feeder |
| DE2214310A1 (en) * | 1972-03-24 | 1973-10-04 | Terrot Soehne & Co C | Control disc unit - for yarn feed system with sub-assemblies on spiral guideways |
-
1978
- 1978-07-18 JP JP53087979A patent/JPS5932382B2/en not_active Expired
-
1979
- 1979-06-28 AU AU48480/79A patent/AU523153B2/en not_active Ceased
- 1979-07-04 GB GB7923353A patent/GB2027460B/en not_active Expired
- 1979-07-11 NL NL7905415A patent/NL7905415A/en not_active Application Discontinuation
- 1979-07-11 IT IT68449/79A patent/IT1119028B/en active
- 1979-07-13 ES ES482940A patent/ES482940A1/en not_active Expired
- 1979-07-16 DE DE19792928696 patent/DE2928696A1/en active Pending
- 1979-07-17 CA CA000331978A patent/CA1121584A/en not_active Expired
- 1979-07-17 FR FR7918503A patent/FR2431563A1/en active Granted
- 1979-07-18 CH CH670879A patent/CH638843A5/en not_active IP Right Cessation
- 1979-07-18 BR BR7904631A patent/BR7904631A/en not_active IP Right Cessation
-
1985
- 1985-06-19 SG SG47185A patent/SG47185G/en unknown
-
1986
- 1986-12-30 MY MY203/86A patent/MY8600203A/en unknown
-
1987
- 1987-04-23 HK HK334/87A patent/HK33487A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5516943A (en) | 1980-02-06 |
| MY8600203A (en) | 1986-12-31 |
| NL7905415A (en) | 1980-01-22 |
| FR2431563B1 (en) | 1983-11-10 |
| ES482940A1 (en) | 1980-05-16 |
| IT1119028B (en) | 1986-03-03 |
| FR2431563A1 (en) | 1980-02-15 |
| CH638843A5 (en) | 1983-10-14 |
| GB2027460A (en) | 1980-02-20 |
| AU523153B2 (en) | 1982-07-15 |
| JPS5932382B2 (en) | 1984-08-08 |
| IT7968449A0 (en) | 1979-07-11 |
| HK33487A (en) | 1987-05-01 |
| GB2027460B (en) | 1982-08-11 |
| BR7904631A (en) | 1980-05-13 |
| AU4848079A (en) | 1980-01-24 |
| DE2928696A1 (en) | 1980-02-14 |
| SG47185G (en) | 1986-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |