CN1054456A - Washing machine - Google Patents
Washing machine Download PDFInfo
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- CN1054456A CN1054456A CN 90104104 CN90104104A CN1054456A CN 1054456 A CN1054456 A CN 1054456A CN 90104104 CN90104104 CN 90104104 CN 90104104 A CN90104104 A CN 90104104A CN 1054456 A CN1054456 A CN 1054456A
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Abstract
A kind of washing machine, include console, control system, laundry motor, transmission system, impeller, base etc., it is wash bucket or the wash bucket and the dehydration dust-collecting bucket of the monoblock type rectangular-shape barrel formation of arc barrel wall structure that this washing machine is provided with four jiaos, and need not casing of washing machine, can be directly installed on the base, having does not need casing of washing machine, low cost of manufacture, machine life is long, and manufacturing technique is simple, small investment, environmental pollution are little, good product quality, vibration is little, noise is little, simple and compact for structure, characteristics that volume is little.
Description
The present invention is a kind of washing machine, belongs to household electrical appliance.
In the prior art, the wash bucket of general washing machine or wash bucket and dehydration dust-collecting bucket adopt integral molded plastic to be shaped, a kind of two-tub washing machine as shown in Figure 7, wash bucket (5) and dehydration dust-collecting bucket (28) top are provided with the inverted U-shaped shirt rim of a circle, this shirt rim is bearing in the upper edge of casing of washing machine (50), wash bucket (5) top is provided with laundry bung (3), dehydration dust-collecting bucket (28) is provided with fixed cap (48), inner cap (32) and dehydration bung (33), washing machine top rear side is console (1), wash bucket (5) and dehydration dust-collecting bucket (28) are being supported in the upper edge of casing of washing machine (50), bottom is bearing in the upper edge of base (51), laundry motor (14), dehydration motor (18) and water discharging valve (23) are installed on the base (51), laundry motor leads (26), dehydration motor lead (19), draining drag-line (27) and brake line (22) are drawn by console (1), guide each respective actuators part on the base (51) into by the space between casing of washing machine (50) rear side and wash bucket (5) and the dehydration dust-collecting bucket (28).In this class washing machine, casing of washing machine had both played a part supporting, fixedly wash bucket or wash bucket and dehydration dust-collecting bucket, played the decoration function of covering lead and drag-line again.The casing of washing machine of prior art generally adopts sheet metal, plastic plate or composition metal plate manufacturing, the plastic plate casing of washing machine is big because of processing technology complexity, distortion, do not adopt at present, the composition metal plate price is very high, also seldom adopt at present, and extensive employing at present is the sheet metal casing of washing machine.These adopt the washing machine of the casing of washing machine of sheet metal or other material to have following weak point: 1. wash bucket or wash bucket and dehydration dust-collecting bucket are by the casing of washing machine supporting and are fixed on the base, because casing of washing machine is to adopt general panel beating technology manufacturing, size and geometrical precision are poor, cause the deviation of centre distance of laundry motor and impeller big, influence the tensile force of belt in the transmission system, thereby influenced the laundry performance; On the other hand, cause the coaxiality deviation of dehydration dust-collecting bucket and dehydration motor, make the bigger off-centre of dehydration barrel generation after the installation; Increased the difficulty of control product quality; 2. because the washing machine working environment is relatively moister, adopt the metal casing of washing machine to be subject to oxide etch, particularly steel material though through antirust processing, corrosion generally also then occurred in 2～3 years, then influences the service life of washing machine when corrosion is serious; 3. wash bucket is fixed on the casing of washing machine upper edge by end bearing on it, its underpart then is subjected to the effect of tensile force of the adhesive tape of transmission system, after using a period of time (general 1～2 year), will cause the washing machine bottom to be out of shape to direction of pull, cause adhesive tape to get loose or slide, influence transmission performance and influence the laundry performance, and easily cause noise.
The objective of the invention is to avoid above-mentioned weak point of the prior art and a kind of casing of washing machine of can cancelling is provided, serviceability is good, safe and reliable, noise is little, cost is low, long service life, simple in structure, manufacturing technique is easy, is easy to control the washing machine of product quality.
Purpose of the present invention can reach by following measure: washing machine includes console, control system, laundry motor, transmission system, impeller, base etc., it is characterized in that: a. is by adopting one four jiaos to be the monoblock type rectangular-shape barrel of arc barrel wall, the outside wall surface of this rectangular-shape barrel is the decorative cover of washing machine, and internal face constitutes the working face (single container washing machine) of wash bucket (5) or separates the working face (two-tub washing machine) that constitutes wash bucket (5) and dehydration dust-collecting bucket (28) respectively in the centre by central dividing plate (29); Utilize this rectangular-shape barrel to play the effect of casing of washing machine and work bucket simultaneously, and its stressed distribution and structure are more reasonable, service behaviour is better, and has saved the material of casing of washing machine, has reduced cost, has improved service life; B. be positioned at the through hole that central dividing plate (29) placement is provided with two-layer bucket wall formation in back bucket wall (39) corner or barrel wall (39) corner, back of rectangular-shape barrel with back bucket wall (39), a through hole of back bucket wall (39) corner of wash bucket (5) part wherein, its arc bucket wall is lower, outer arcuate bucket wall is mutually neat with rectangular-shape barrel top, constitute the spilling water breach and the outer water overflow chamber (37) of wash bucket (5) that are arranged in wash bucket (5), its bottom is provided with gap (36), to guarantee that exceeding the water that limits maximum water level in the wash bucket (5) can in time overflow, and in remaining through hole, the outer barrel wall height is identical with back bucket wall (39), constitute lead, drag-line lay the hole so that the lead of drawing from console (1), drag-line is connected with corresponding device on the base (15) through this through hole; C. extend downwards along the bucket sidewall in the bottom of rectangular-shape barrel and constitute a circle connection toe mouth (11), rectangular-shape barrel connects toe mouth (11) by it and is connected, supports with base (15) top and be fixed on base (15) top and form the outside wall surface of rectangular-shape barrel and the washing machine decorative cover that the perpendicular wall outer surface of base (15) constitutes, thereby constitute the decoration function that the integral installation facing replaces casing of washing machine in the prior art, and replaced connection, location, supporting and the fixation of casing of washing machine from structure; D. be provided with connection toe mouth in rectangular-shape barrel bung upper edge, rectangular-shape barrel connects toe mouth by this and is connected with console (1), and console (1) supports and is fixed on the rectangular-shape barrel.Said structure can be so that washing machine cancellation casing of washing machine be realized purpose of the present invention.
Purpose of the present invention can also reach by following measure: the rectangular-shape barrel in the washing machine can be the plastics rectangular-shape barrel of integral molded plastic, and base (15) can be the plastic feet of integral molded plastic.To simplify the manufacturing technique of washing machine, guarantee to have good installation accuracy and outward appearance, improve service life, reduce vibration and noise.
The invention will be further described to utilize accompanying drawing:
Fig. 1 is the structure chart of a kind of two-tub washing machine of the present invention;
Fig. 2 is the rectangular-shape barrel horizontal section structure chart partly of the two-tub washing machine of Fig. 1;
Fig. 3 is Fig. 2 " A-A " profile;
Fig. 4 is Fig. 2 " B-B " profile;
Fig. 5 is Fig. 2 " C-C " profile;
Fig. 6 is the structure chart of a kind of single container washing machine of the present invention;
Fig. 7 is the structure chart of a kind of two-tub washing machine of the prior art.
At Fig. 1, Fig. 2, Fig. 3, in Fig. 4 and the two-tub washing machine shown in Figure 5, (1) is console, (2) be circle suitable for reading, (3) be the laundry bung, (4) be water inlet pipe, (5) be wash bucket, (6) be left side bucket wall, (7) be impeller, (8) be the wash bucket water discharge outlet, (9) be bearing block, (10) be transmission system, (11) be to connect the toe mouth, (12) be overflow pipe, (13) be the wash bucket drainpipe, (14) be the laundry motor, (15) be base, (16) be main sewer, (17) be the dehydration motor supporting base, (18) be dehydration motor, (19) be the dehydration motor lead, (20) dehydration dust-collecting bucket drainpipe, (21) be brakes, (22) be brake line, (23) be water discharging valve, (24) be seal, (25) be dehydration dust-collecting bucket water discharge outlet, (26) be the laundry motor leads, (27) be the draining drag-line, (28) be the dehydration dust-collecting bucket, (29) be central dividing plate, (30) be right side bucket wall, (31) be dehydration barrel, (32) be inner cap, (33) be the dehydration bung, (34) be outer arcuate bucket wall, (35) be arc bucket wall, (36) be gap, (37) be water overflow chamber, (38) be preceding bucket wall, (39) be back bucket wall, (40) be arc barrel wall, (41) be arc barrel wall, (42) be arc bucket wall, (43) be through hole, (44) be arc bucket wall, (45) be arc bucket wall, (46) be through hole, (47) be outer arcuate bucket wall.
In single container washing machine shown in Figure 6, (1) is that console, (2) are that circle suitable for reading, (3) are that laundry bung, (4) are that water inlet pipe, (5) are that wash bucket, (7) are that impeller, (8) are that wash bucket water discharge outlet, (9) are that bearing block, (10) are that transmission system, (11) are that connection toe mouth, (12) are that overflow pipe, (13) are that wash bucket drainpipe, (14) are that laundry motor, (15) are that base, (16) are that main sewer, (23) are that water discharging valve, (26) are that laundry motor leads, (27) are the draining drag-lines.
In the two-tub washing machine of the prior art of Fig. 7, (1) is console, (3) be the laundry bung, (4) be water inlet pipe, (5) be wash bucket, (7) be impeller, (9) be bearing block, (10) be transmission system, (12) be overflow pipe, (13) be the wash bucket drainpipe, (14) be the laundry motor, (16) be main sewer, (17) be the dehydration motor supporting base, (18) be dehydration motor, (19) be the dehydration motor lead, (20) be dehydration dust-collecting bucket drainpipe, (21) be brakes, (22) be brake line, (23) be water discharging valve, (24) be seal, (25) be dehydration dust-collecting bucket water discharge outlet, (26) be the laundry motor leads, (27) be the draining drag-line, (28) be the dehydration dust-collecting bucket, (31) be dehydration barrel, (32) be inner cap, (33) be the dehydration bung, (48) be fixed cap, (49) be the spilling water flase floor, (50) be casing of washing machine, (51) be base.
The invention will be further described to utilize following examples:
A kind of two-tub washing machine of the present invention as depicted in figs. 1 and 2, can be provided with the water overflow chamber (37) of outer arcuate bucket wall (34) and arc bucket wall (35) formation and the through hole that lays lead and drag-line (46) of outer arcuate bucket wall (47) and arc bucket wall (45) formation in back bucket wall (39) corner of rectangular-shape barrel, the below of water overflow chamber (37) is provided with gap (36).Water overflow chamber is used to overflow water and the foam on the wash bucket maximum water level, and through hole is used to lay lead and drag-line, the lead and the drag-line of drawing from console are joined through the corresponding device on this through hole and the base.
A kind of two-tub washing machine of the present invention as depicted in figs. 1 and 2, can be provided with the water overflow chamber (37) that outer arcuate bucket wall (34) and arc bucket wall (35) constitute in back bucket wall (39) corner of rectangular-shape barrel, and being positioned at the through hole that lays lead and drag-line (43) that central dividing plate (29) placement is provided with arc bucket wall (42,44) and back bucket wall (39) formation at a back bucket wall (39), the below of water overflow chamber (37) is provided with gap (36).Water overflow chamber is used to overflow water and the foam on the wash bucket maximum water level, and through hole is used to lay lead and drag-line, the lead and the drag-line of drawing from console are joined through the corresponding device on this through hole and the base.
A kind of two-tub washing machine of the present invention as depicted in figs. 1 and 2, can be provided with the water overflow chamber (37) that outer arcuate bucket wall (34) and arc bucket wall (35) constitute in back bucket wall (39) corner of rectangular-shape barrel, the through hole (46) that lays lead or drag-line or lead and drag-line that outer arcuate bucket wall (47) and arc bucket wall (45) constitute, and be positioned at central dividing plate (29) placement at a back bucket wall (39) and be provided with arc bucket wall (42,44) and the through hole (43) that lays lead or drag-line or lead and drag-line that constitutes of back bucket wall (39), the below of water overflow chamber (37) is provided with gap (36).Water overflow chamber is used to overflow water and the foam on the wash bucket maximum water level, and through hole is used to lay lead or drag-line or lead and drag-line, the lead and the drag-line of drawing from console are joined through the corresponding device on this through hole and the base.
A kind of single container washing machine of the present invention as shown in Figure 6, its structure is except that the part-structure that do not dewater, all the other structure basically identicals, can be provided with a side in back bucket wall (39) corner of its rectangular-shape barrel is the water overflow chamber that outer arcuate bucket wall and arc bucket wall constitute, opposite side is the through hole that lays lead and drag-line that outer arcuate bucket wall and arc bucket wall constitute, and the below of water overflow chamber is provided with gap.Water overflow chamber is used to overflow water and the foam on the maximum water level in the wash bucket, through hole is used to lay lead and drag-line, make the laundry motor leads (26) of drawing from console and draining drag-line (27) pass through this through hole respectively with base on laundry motor (14) and water discharging valve (23) join.
A kind of washing machine of the present invention such as Fig. 1, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, its base (15) top is provided with the bottom of rectangular-shape barrel and is connected the bayonet socket annular groove that toe mouth (11) matches along the circle that the bucket sidewall extends formation downwards, and rectangular-shape barrel is inserted this bayonet socket annular groove by its connection toe mouth (11) and is located by connecting, fixes and be bearing in base (15) top.Make rectangular-shape barrel connection, positioning support and be fixed on the base (15) better, and the outward appearance of joint is more perfect.
A kind of washing machine of the present invention such as Fig. 1 and shown in Figure 6, its rectangular-shape barrel bung upper edge connects on the toe mouth is equipped with circle suitable for reading (2), and laundry bung (3) and dehydration bung (33) place on the circle suitable for reading (2), and console (1) is located at circle suitable for reading (2) top.And circle suitable for reading (2) can also be the monolithic construction that is connected as one with console (1).Circle suitable for reading (2) can play decoration and strengthen the rectangular-shape barrel bung and prevent the effect that bung is out of shape.
The above-mentioned two-tub washing machine of the present invention all constitutes wash bucket (5) and dehydration dust-collecting bucket (28) by rectangular-shape barrel and central dividing plate (29) thereof, and above-mentioned single container washing machine all is directly to constitute wash bucket (5) by rectangular-shape barrel.
The present invention compared with prior art has following features:
(1) do not need washing machine casing, low cost of manufacture. A washing machine casing cost is approximately 55 yuan of (steel plate)～80 yuan (aluminium sheet) in the prior art, cancellation washing machine casing, and then every washing machine can be saved about 45 yuan, produces 1000 ten thousand washing machines per year by China and calculates, and can save about 4.5 hundred million yuan every year.
(2) machine life is long. Be directed at early stage inefficacy of washing machine in the prior art and out of use reason, the life-span that mainly is the washing machine casing can not reach designing requirement (life-span of general steel plate washing machine casing only is 3～5 years), cancellation washing machine casing, be subjected to the ultraviolet ray irradiation under the sunlight as long as avoid washing machine to be exposed to, can guarantee that then complete machine reaches projected life.
(3) simple, the small investment of manufacturing process, environmental pollution are little. Owing to cancelled the washing machine casing, then cancelled panel beating manufacturing process and the antirust technology of spraying paint of whole washing machine casing, can reduce sheet metal shop and painting workshop investment, avoided the pollution on the environment that sprays paint.
(4) good product quality, the vibration little.The cancellation casing of washing machine, wash bucket, dehydration dust-collecting bucket are directly installed on the base, and installation accuracy guarantees that easily force-bearing situation is improved, and product quality is improved, and has reduced the vibration of complete machine.
(5) noise is little.Casing of washing machine behind the cancellation casing of washing machine, then can reduce overall noise as resonant tank in the prior art.
(6) simple and compact for structure, volume is little.The cancellation casing of washing machine reduces machine volume.
Claims (9)
1, a kind of washing machine includes console, control system, laundry motor, transmission system, impeller, base, it is characterized in that:
A. to be provided with one four jiaos be the monoblock type rectangular-shape barrel of arc barrel wall to this washing machine, the outside wall surface of this rectangular-shape barrel is the decorative cover of washing machine, and internal face constitutes the working face (single container washing machine) of wash bucket (5) or separates the working face (two-tub washing machine) that constitutes wash bucket (5) and dehydration dust-collecting bucket (28) respectively in the centre by central dividing plate (29);
B. be positioned at the through hole that central dividing plate (29) placement is provided with two-layer bucket wall formation in back bucket wall (39) corner or barrel wall (39) corner, back of rectangular-shape barrel with back bucket wall (39), a through hole of back bucket wall (39) corner of wash bucket (5) part wherein, its arc bucket wall is lower, outer arcuate bucket wall is mutually neat with rectangular-shape barrel top, constitute the spilling water breach and the outer water overflow chamber (37) of wash bucket (5) that are arranged in wash bucket (5), its bottom is provided with gap (36), and in remaining through hole, the outer barrel wall height is identical with back bucket wall (39), constitutes lead, drag-line lay the hole;
C. extend downwards along the bucket sidewall in the bottom of rectangular-shape barrel and constitute a circle and connect toe mouth (11), rectangular-shape barrel connects toe mouth (11) by it and is connected, supports with base (15) top and the outside wall surface and the base (15) that are fixed on base (15) top and formation rectangular-shape barrel erects the washing machine decorative cover of wall outer surface formation;
D. be provided with connection toe mouth in rectangular-shape barrel bung upper edge, rectangular-shape barrel connects toe mouth by this and is connected with console (1), and console (1) supports and is fixed on the rectangular-shape barrel.
2, washing machine according to claim 1 is characterized in that said rectangular-shape barrel is the plastics rectangular-shape barrel of integral molded plastic, and base (15) is the plastic feet of integral molded plastic.
3, washing machine according to claim 1 and 2, it is characterized in that said washing machine is a two-tub washing machine, back bucket wall (39) corner of its rectangular-shape barrel is provided with the water overflow chamber (37) of outer arcuate bucket wall (34) and arc bucket wall (35) formation and the through hole that lays lead and drag-line (46) of outer arcuate bucket wall (47) and arc bucket wall (45) formation, and the below of water overflow chamber (37) is provided with gap (36).
4, washing machine according to claim 1 and 2, it is characterized in that said washing machine is a two-tub washing machine, back bucket wall (39) corner of its rectangular-shape barrel is provided with the water overflow chamber (37) of outer arcuate bucket wall (34) and arc bucket wall (35) formation, and a back bucket wall (39) is positioned at the through hole that lays lead and drag-line (43) that central dividing plate (29) placement is provided with arc bucket wall (42,44) and back bucket wall (39) formation, and the below of water overflow chamber (37) is provided with gap (36).
5, washing machine according to claim 1 and 2, it is characterized in that said washing machine is a two-tub washing machine, back bucket wall (39) corner of its rectangular-shape barrel is provided with the water overflow chamber (37) of outer arcuate bucket wall (34) and arc bucket wall (35) formation, the through hole (46) that lays lead or drag-line or lead and drag-line that outer arcuate bucket wall (47) and arc bucket wall (45) constitute, and a back bucket wall (39) is positioned at central dividing plate (29) placement and is provided with arc bucket wall (42,44) and the through hole (43) that lays lead or drag-line or lead and drag-line that constitutes of back bucket wall (39), the below of water overflow chamber (37) is provided with gap (36).
6, washing machine according to claim 1 and 2, it is characterized in that said washing machine is a single container washing machine, it is the water overflow chamber that outer arcuate bucket wall and arc bucket wall constitute that back bucket wall (39) corner of its rectangular-shape barrel is provided with a side, opposite side is the through hole that lays lead and drag-line that outer arcuate bucket wall and arc bucket wall constitute, and the below of water overflow chamber is provided with gap.
7, washing machine according to claim 1 and 2, it is characterized in that said base (15) top is provided with the bottom of rectangular-shape barrel is connected the bayonet socket annular groove that toe mouth (11) matches along the circle that the bucket sidewall extends formation downwards, and rectangular-shape barrel is inserted this bayonet socket annular groove by its connection toe mouth (11) and is located by connecting, fixes and be bearing in base (15) top.
8, washing machine according to claim 1 and 2, it is characterized in that on the said rectangular-shape barrel bung upper edge connection toe mouth circle suitable for reading (2) being housed, laundry bung (3) and dehydration bung (33) place on the circle suitable for reading (2), and console (1) is located at circle suitable for reading (2) top.
9, washing machine according to claim 8 is characterized in that said circle suitable for reading (2) and console (1) are the monolithic constructions that is connected as one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104104 CN1017075B (en) | 1990-06-02 | 1990-06-02 | Washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104104 CN1017075B (en) | 1990-06-02 | 1990-06-02 | Washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1054456A true CN1054456A (en) | 1991-09-11 |
| CN1017075B CN1017075B (en) | 1992-06-17 |
Family
ID=4878391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90104104 Expired CN1017075B (en) | 1990-06-02 | 1990-06-02 | Washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1017075B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094537C (en) * | 1998-12-09 | 2002-11-20 | 方益民 | Double-drum washer |
| CN1102680C (en) * | 1999-06-11 | 2003-03-05 | 方益民 | Double-barrel washer |
| CN1920154B (en) * | 2005-08-26 | 2010-09-22 | 海尔集团公司 | Two-tub washing machine with soft dehydration function |
| CN101575790B (en) * | 2009-05-27 | 2011-10-26 | 胡君芬 | Double-shaft double-gear double-tube washing machine |
| CN103556440A (en) * | 2013-10-18 | 2014-02-05 | 刘富春 | Water containing barrel structure of impeller washing machine |
| CN104233699A (en) * | 2013-06-20 | 2014-12-24 | 株式会社东芝 | Washing machine |
| CN106758001A (en) * | 2015-11-24 | 2017-05-31 | 衡阳市维达胜电气自动化设备有限公司 | A kind of new fully-automatic washing dewaterer |
| WO2022021914A1 (en) * | 2020-07-31 | 2022-02-03 | 青岛海尔洗衣机有限公司 | Twin-tub-type washing machine |
-
1990
- 1990-06-02 CN CN 90104104 patent/CN1017075B/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094537C (en) * | 1998-12-09 | 2002-11-20 | 方益民 | Double-drum washer |
| CN1102680C (en) * | 1999-06-11 | 2003-03-05 | 方益民 | Double-barrel washer |
| CN1920154B (en) * | 2005-08-26 | 2010-09-22 | 海尔集团公司 | Two-tub washing machine with soft dehydration function |
| CN101575790B (en) * | 2009-05-27 | 2011-10-26 | 胡君芬 | Double-shaft double-gear double-tube washing machine |
| CN104233699A (en) * | 2013-06-20 | 2014-12-24 | 株式会社东芝 | Washing machine |
| CN103556440A (en) * | 2013-10-18 | 2014-02-05 | 刘富春 | Water containing barrel structure of impeller washing machine |
| CN103556440B (en) * | 2013-10-18 | 2016-08-31 | 刘富春 | The steel ladle structure of rotary drum washing machine |
| CN106758001A (en) * | 2015-11-24 | 2017-05-31 | 衡阳市维达胜电气自动化设备有限公司 | A kind of new fully-automatic washing dewaterer |
| WO2022021914A1 (en) * | 2020-07-31 | 2022-02-03 | 青岛海尔洗衣机有限公司 | Twin-tub-type washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1017075B (en) | 1992-06-17 |
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Free format text: CORRECT: PATENTEE; FROM: WEILI WASHING MACHINE FACTORY, ZHONGSHAN CITY TO: ZHONGSHAN WEILI WASHING MACHINE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Zhongshan Weili Washing Machine Co., Ltd. Patentee before: Weili Washing Machine Factory, Zhongshan City |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20040907 Pledge (preservation): Preservation |
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| PD01 | Discharge of preservation of patent |
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Owner name: ZHONGSHAN GUANZHONG INVESTMENT CO., LTD. Free format text: FORMER OWNER: ZHONGSHAN WEILI WASHING MACHINE CO., LTD. Effective date: 20060922 |
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