CN201481320U - Roller type brush broom with positive and negative ion generators and dust collector head - Google Patents
Roller type brush broom with positive and negative ion generators and dust collector head Download PDFInfo
- Publication number
- CN201481320U CN201481320U CN2009201701658U CN200920170165U CN201481320U CN 201481320 U CN201481320 U CN 201481320U CN 2009201701658 U CN2009201701658 U CN 2009201701658U CN 200920170165 U CN200920170165 U CN 200920170165U CN 201481320 U CN201481320 U CN 201481320U
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- roller
- positive
- negative ion
- power supply
- head
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- 239000000428 dust Substances 0.000 title claims abstract description 51
- 244000007853 Sarothamnus scoparius Species 0.000 title claims abstract description 23
- 150000002500 ions Chemical class 0.000 abstract description 86
- 241000894006 Bacteria Species 0.000 abstract description 14
- 241000700605 Viruses Species 0.000 abstract description 14
- 239000013566 allergen Substances 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 230000001680 brushing effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 230000036541 health Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241001417527 Pempheridae Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
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Abstract
The utility model relates to a roller type brush broom with positive and negative ion generators and a dust collector head. The roller type brush broom is provided with a roller which is internally provided with the positive and negative ion generators; the positive ion generator is provided with more than one positive ion emitting head; the negative ion generator is provided with more than one negative ion emitting head; the roller is provided with an LED lamp; when the positive and negative ion generators are connected to a power supply, positive and negative ions emitted by the emitting heads flow along with the rotary airflow of the roller type brush broom, thus allergen, virus, bacteria and mould existing in the air are inhibited and eliminated when rubbish on the surface of the object is swept and peculiar smell caused by mould is reduced by using natural phenomenon generated when the positive and negative ions are combined. The utility model has the advantages of rapidly cleaning and collecting dust and rubbish, killing virus and bacteria in close range and within a short period of time and inhibiting allergen and reducing peculiar smell caused by the mould.
Description
Technical Field
The utility model relates to a cleaning device, in particular to a roller-shaped hair brush with a positive and negative ion generator and a dust collector head which can effectively kill allergens, viruses, bacteria, and mould and reduce the peculiar smell caused by the mould.
Background
The known electric hair brush is connected with a main body of a garbage or dust collector (such as an electric broom, an electric dust collector and the like) through a connecting pipe, the lower surface of a shell of the electric hair brush is provided with a dust suction opening, a roller-shaped rotary hair brush positioned in the shell extends to the outer side of the shell through the dust suction opening so as to be in contact with the surface of an object to be cleaned, and the purpose of brushing the surface of the object to be cleaned by the electric hair brush is realized by a power device for driving the roller-shaped rotary hair brush to rotate. The electric hair brush only realizes the brushing function, but viruses and bacteria in garbage and dust cannot be killed, and even the viruses and bacteria are more active and float in the air, so that the human health is harmed.
The prior electric dust collector with a positive and negative ion generator is provided, the positive and negative ion generator is arranged in a main body part of the dust collector connected with a suction head of the dust collector, by starting the blade motor device generating suction, the garbage and dust enter the main body part of the dust collector through the suction head and the connecting pipe and reach the foreign matter collecting chamber, and the positive and negative ions emitted by the positive and negative ion generator are used in the collecting chamber to kill the sucked virus and bacteria, thereby achieving the effects of cleaning and disinfection, however, this device has a disadvantage in killing viruses and bacteria, and since the suction head portion thereof has no sterilizing function, there is no killing of viruses and bacteria at the portion of the tip that is brushed and sucked into the dirt and dust and the surface of the object it is sweeping over, so that the viruses and bacteria after brushing are more active and even float in the air, thus endangering human health.
In view of the above, in order to overcome the above-mentioned defects and shortcomings of the conventional electric garbage and dust collecting device when cleaning the surface of an object, the present designer has devised the present invention through hard research and development according to the working experience and knowledge in the field for many years.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be: to provide a drum-shaped brush and cleaner head having a positive/negative ion generator, which can effectively suppress allergens, viruses, bacteria, and mold in the air around a brush drum and kill them when brushing the surface of an object.
The technical solution of the utility model is as follows:
the roller-shaped hair brush with the positive and negative ion generators comprises a roller, wherein a hair brush is arranged on the roller, the roller is internally provided with the positive and negative ion generators, the positive ion generator is provided with more than one positive ion emitting head, the negative ion generator is provided with more than one negative ion emitting head, and the roller is provided with more than one LED lamp.
In the roller-shaped broom with the positive and negative ion generators, the positive and negative ion emitting heads and the LED lamp are provided with fixing devices, and the fixing devices are arranged on the roller.
In the roller-shaped broom with the positive and negative ion generators, two power supply access rings are arranged at one end of the roller, the power supply access rings introduce current to be connected to the positive and negative ion generators and the LED lamp, and the power supply access rings are connected to a power supply through a pair of power supply contact elastic sheets.
The roller-shaped hair brush with the positive and negative ion generators is characterized in that the roller is of a combined structure formed by combining two parts.
A dust collector head with a roller-shaped hair brush comprises a shell and the roller-shaped hair brush, wherein the shell is provided with a connecting pipe orifice, and the lower surface of the shell is provided with a dust collection orifice; the roller-shaped hair brush corresponds to the dust suction port is rotatably arranged in the shell, the roller-shaped hair brush comprises a roller, and a hair brush is arranged on the roller, and the roller-shaped hair brush is characterized in that: the roller is internally provided with a positive ion generator and a negative ion generator, the positive ion generator is provided with more than one positive ion emitting head, the negative ion generator is provided with more than one negative ion emitting head, and the roller is provided with more than one LED lamp.
In the above vacuum cleaner head with a roller-shaped brush broom, the positive and negative ion emitting heads and the LED lamp have fixing devices, and the fixing devices are disposed on the roller.
In the above vacuum cleaner head with the roller-shaped brush, two power supply access rings are arranged at one end of the roller, the power supply access rings introduce current to be connected to the positive and negative ion generators and the LED lamp, and the power supply access rings are connected to a power supply through a pair of power supply contact elastic pieces.
In the above cleaner head with the roller-shaped brush, the housing is provided with a transparent cover corresponding to the roller-shaped brush.
In the above vacuum cleaner head with the roller-shaped brush, one end of the power supply contact spring is clamped and fixed inside the shell and connected to the power supply, and the other end of the power supply contact spring is pressed and contacted with the power supply access ring.
In the dust collector head with the roller-shaped brush broom, the two ends of the roller are respectively provided with the positive ion emission head, the negative ion emission head and the LED lamp, and the two groups of emission heads and the LED lamps are arranged on the two sides of the roller in a back-to-back manner.
To sum up, the utility model discloses a roller shape hair with positive negative ion generator is swept and dust catcher head has following advantage with prior art comparison:
1. the air flow around the roller can effectively roll in a close range or in a point-to-point mode, so that the air outside the roller is filled with positive and negative ions, and simultaneously, allergens, viruses, bacteria and mildew in the air are inhibited in the hairbrush shell, and the allergens, viruses, bacteria and mildew are killed and inhibited through the natural phenomenon when the positive and negative ions are combined in the close range and in a short time, so that the peculiar smell caused by the mildew is reduced, and the sterilization effect is really played.
2. The design of the transparent cover and the LED lamp at the front end of the brush sweeper shell not only plays a role in indicating power supply connection and observing the working state of the roller-shaped rotating brush, but also can produce gorgeous and beautiful visual effects.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a sectional view of the inner structure of the drum of the present invention;
FIG. 3 is a schematic view of the internal structure of the head of the vacuum cleaner of the present invention;
fig. 4 is a schematic structural view of the drum rotating device of the present invention;
fig. 5 is an electrical schematic diagram of the ionizer of the present invention.
Main element number description:
1: roller-shaped broom 11: the roller 12: brush with brush head
13: brush hole 14: through hole 141: through hole
15: power supply access ring 16: power access spring 17: ion generator
171: positive ion generator 172: negative ion generator 173: power input terminal
174: the electronic oscillation circuit 175: step-up transformer 176: voltage-doubling rectifying circuit
177: high voltage output terminal 18: ion emitting head 181: positive ion emission head
182: negative ion emitting head 183: the fixing device 19: LED lamp
191: the fixing device 2: a housing 20: dust suction chamber
20': closed chamber 21: upper case 22: lower casing
23: the connection nozzle 24: transparent cover 25: dust absorption mouth
3: rotation driving device 31: pulley 4: vacuum cleaner head
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 4, the roller-shaped broom 1 of the present invention includes a roller 11, a brush 12 is disposed on the roller 11, wherein an ion generator 17 is disposed in the roller 11, the ion generator 17 has an ion emitting head 18, and specifically, the ion generator 17 includes a positive ion generator 171 and a negative ion generator 172; the positive ion generator 171 has one or more positive ion emitting heads 181, and the negative ion generator 172 has one or more negative ion emitting heads 182; meanwhile, in order to indicate the power-on state, the roller is provided with more than one LED lamp 19; the side wall of the drum 11 is provided with a plurality of through holes 14, 141, the through holes 14 are provided corresponding to the ion emitting heads 18, and the through holes 141 are provided corresponding to the LED lamps 19.
Preferably, in order to facilitate the installation and fixation of the ion emitting head 18 and the LED lamp 19, the ion emitting head 18 may be provided with a fixing device 183, and the fixing device 183 is disposed through the through hole 14 on the sidewall of the drum 11; the LED lamp 19 may be provided with a fixing device 191, and the fixing device 191 penetrates through the through hole 141 on the sidewall of the drum 11.
One end of the roller 11 is provided with two power supply access rings 15, the power supply access rings 15 are electrically connected to the ion generator 17 and the LED lamp 19, and the two power supply access rings 15 are correspondingly connected to a power supply through a pair of power supply contact spring pieces 16.
The utility model discloses an available motor of roller shape hair brush drives rotatoryly, and its implementation mode has a plurality ofly, for example, can be equipped with a belt pulley 31 at another tip of this cylinder 11, and the belt of the rotary drive device 3 that is connected with the output shaft of motor drives belt pulley 31 and rotates to make the roller shape hair brush rotate the work, please refer to fig. 4 and show.
As shown in fig. 5, for the electrical schematic diagram of the ionizer 17 of the present invention, the ionizer includes a power input 173, an electronic oscillator 174, a step-up transformer 175, a voltage-doubling rectifying circuit 176 and a high-voltage output 177, and the specific components are well known to those skilled in the art and will not be described in detail herein. The working principle is as follows: a low voltage dc power is connected to the power input 173, and a pulse wave is generated by an electronic oscillator 174 and boosted to a higher ac voltage by the step-up transformer 175; however, due to the limitation of the volume of the step-up transformer 175 (the step-up transformer is larger as the voltage is higher), the voltage is still not high enough, so that the higher ac voltage is sent to the one-voltage doubling rectifying circuit 176 to convert the original higher ac voltage into the dc voltage, and the dc voltage is boosted to meet the requirement of ionizing ions, and finally the dc voltage is output through the high-voltage output terminal 177 to achieve the purpose of ionizing air. The ion generator of the present invention can be implemented by using other existing structures or circuits, and is not limited herein.
The following is a specific application example of the roller-shaped broom 1 of the present invention, namely, the roller-shaped broom is applied to a dust collector head 4 formed with the roller-shaped broom 1: the dust collector head 4 comprises a shell 2 and a roller-shaped fur brush 1, wherein a dust suction port 25 is arranged at the bottom of the shell 2, the roller-shaped fur brush 1 is rotatably arranged in the shell 2 corresponding to the dust suction port 25, a connecting pipe port 23 is arranged at the top of the shell 2 and is slightly close to the middle of the top of the shell, and the dust collector head 4 is connected with a dust collector main body through the connecting part 23.
As shown in the figure, the housing 2 may be composed of an upper housing 21, a lower housing 22 and a transparent cover 24, the upper housing 21 and the lower housing 22 are packaged to form a closed cavity 20' for installing components such as a motor and a rotary driving device, the upper housing 21, the lower housing 22 and the transparent cover 24 may be commonly enclosed to form a dust suction cavity 20 having a bottom opening (a dust suction opening 25), the dust suction cavity 20 is preferably located slightly near the front portion of the housing 2, the top portion of the dust suction cavity 20 is located slightly near the rear portion of the dust suction cavity 23, the drum-shaped brush 1 is rotatably installed in the dust suction cavity 20, the surface of the drum 11 is provided with a plurality of brush holes 13, the brush holes 13 are provided with brushes 12, and the brushes 12 can extend out of the lower housing 12 through the dust suction opening 25 to contact with the surface to be cleaned.
As shown in the figures, in the embodiment of the present invention, the roller 11 is composed of two parts, a positive ion generator 171 and a negative ion generator 172 are disposed in the middle of the roller 11 in an axial arrangement, the positive ion generator 171 is provided with a positive ion emitting head 181, and the negative ion generator 172 is provided with a negative ion emitting head 182. The positive ion emitting head 181 and the negative ion emitting head 182 have fixing devices 183, and the fixing devices 183 are arranged through the through holes 14 of the drum 11; the roller 11 is provided with an LED lamp 19, and the LED lamp 19 penetrates through the through hole 14 on the side wall of the roller 11 through a fixing device 191.
In order to make the positive and negative ions in the head more uniform, in this embodiment, the positive and negative ion generators are disposed in the middle of the drum, and the two ends of the drum are both provided with the positive ion emitting head 181 and the negative ion emitting head 182, as shown in fig. 2, two sides of the intersection part of a plane and the drum wall in the axial direction of the drum 11 are respectively provided with a group of the positive and negative ion emitting heads 181 and 182 and an LED lamp 19, and the two groups of the emitting heads and the LED lamps on the two sides are arranged in a back-to-back manner.
Two power supply access rings 15 made of metal conductive materials are arranged at one end of the roller 11, one ends of a pair of power supply contact elastic sheets 16 are respectively clamped and fixed at the inner side of the shell 2 and are connected with a power supply, and the other ends of the power supply contact elastic sheets 16 are respectively pressed against the power supply access rings 15; wherein the power supply access ring 15 is electrically connected with the positive ion generator 171, the negative ion generator 172 and the LED lamp 19; therefore, when the power supply is switched on, the power supply access coil 15 rotates along with the roller 11, and the power supply respectively presses and contacts the power supply access coil 15 through the power supply contact elastic sheet 16 to achieve the purpose of continuously supplying power to the positive ion generator 171, the negative ion generator 172 and the LED lamp 19.
The closed cavity 20' of the shell 2 of the dust collector head 4 is internally provided with a rotary driving device 3 driven by a motor, and the rotary driving device 3 is connected with a belt pulley 31 on a pivot shaft of the roller 11 through a belt to drive the roller-shaped brush 1 to rotate quickly.
As shown in fig. 5, which is an electrical schematic diagram of the ionizer of the present invention, a low voltage dc power is connected to the power input 173, and a pulse wave is generated by an electronic oscillator 174, and the pulse wave is boosted to ac power with higher voltage through the step-up transformer 175; however, due to the limitation of the volume of the step-up transformer 175 (the step-up transformer is larger as the voltage is higher), the voltage is still not high enough, so that the ac voltage is sent to the voltage doubling rectifying circuit 176 to convert the ac power with higher voltage into dc power, and the dc voltage is boosted to meet the ionization requirement; and finally, the direct current voltage is output through a high-voltage output end 177, so that the purpose of air ionization is achieved.
The operation of the cleaner head 4 with the roller-shaped fur brush 1 according to the present embodiment will be described below:
the connecting pipe opening 23 of the dust collector head 4 with the roller-shaped hairbrush 1 shown in the figure 1 is connected with a connecting pipe of a dust collector, when the dust collector is started and the power supply of the roller-shaped hairbrush 1 is switched on, suction force is generated in the dust suction cavity 20 of the shell 2 of the dust collector head 4, and substances such as external garbage, dust and the like and surrounding air can be sucked into the main body of the dust collector through the dust suction opening 25; meanwhile, the roller-shaped brush 1, the positive ion generator 171 and the negative ion generator 172 start to work, the roller-shaped brush 1 rotates rapidly, the brush 12 contacts and brushes the surface of the object to be cleaned through the dust suction opening 25, the allergens, viruses, bacteria and molds in the air are inhibited around the roller-shaped brush 1 in the housing 2 in a very short time by the rapidly rolling air flow in a very short distance, meanwhile, the positive ion emitter 181 and the negative ion emitter 182 arranged on the roller 11 emit high-density positive and negative ions and float along with the air flow, the air around the roller-shaped brush 1 is filled with the positive and negative ions under the rapidly rolling air flow of the roller-shaped brush 1, so that the harmful substances such as pathogens, viruses, bacteria and molds to the human body in the brushing process are effectively killed and inhibited in a very short distance and a very short time, and the peculiar smell caused by the molds is also reduced, the excellent effects of cleaning, disinfection and sterilization are achieved.
Meanwhile, the LED lamps 19 arranged at the two ends of the roller 11 emit light, and the light forms two gorgeous light rings along with the rapid rotation of the roller 11, and the transparent cover 24 on the shell 2 is penetrated, so that the functions of indicating the power on and observing the working state of the roller-shaped hair brush 1 are achieved, the gorgeous and beautiful visual effect can be generated, and the attraction of the product is enhanced.
The above description is only illustrative of the present invention, and is not intended to limit the scope of the present invention, for example, the structure and arrangement of each ion generator in the roller-shaped brush broom can be various other schemes, and the roller-shaped brush broom can be applied to a dust collector and other electric cleaning devices such as an electric broom, and the present case is not limited. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (10)
1. The roller-shaped broom is characterized in that a positive ion generator and a negative ion generator are arranged in the roller, the positive ion generator is provided with more than one positive ion emitting head, the negative ion generator is provided with more than one negative ion emitting head, and the roller is provided with more than one LED lamp.
2. The roller-shaped broom having positive and negative ion generators of claim 1, wherein the positive and negative ion emitting heads and the LED lamp have fixing means, and the fixing means is disposed on the roller.
3. The roller-shaped broom with positive and negative ion generators of claim 1, wherein two power supply access rings are provided at one end of the roller, the power supply access rings conduct current to the positive and negative ion generators and the LED lamp, and the power supply access rings are connected to a power supply through a pair of power supply contact spring pieces.
4. The roller-shaped broom having positive and negative ion generators of claim 1, wherein the roller is a two-part combination.
5. A dust collector head with a roller-shaped hair brush comprises a shell and the roller-shaped hair brush, wherein the shell is provided with a connecting pipe orifice, and the lower surface of the shell is provided with a dust collection orifice; the roller-shaped hair brush corresponds to the dust suction port is rotatably arranged in the shell, the roller-shaped hair brush comprises a roller, and a hair brush is arranged on the roller, and the roller-shaped hair brush is characterized in that: the roller is internally provided with a positive ion generator and a negative ion generator, the positive ion generator is provided with more than one positive ion emitting head, the negative ion generator is provided with more than one negative ion emitting head, and the roller is provided with more than one LED lamp.
6. The head of a vacuum cleaner having a drum-shaped broom according to claim 5, wherein the positive and negative ion emitting heads and the LED lamp have fixing means provided on the drum.
7. The head of claim 5, wherein two power supply connection rings are provided at one end of the roller, the power supply connection rings are connected to the positive and negative ion generators and the LED lamp by current, and the power supply connection rings are connected to a power supply through a pair of power supply contact spring pieces.
8. The head of a vacuum cleaner having a drum-type brush according to claim 5, wherein the housing is provided with a transparent cover corresponding to the drum-type brush.
9. The head of claim 7, wherein the power contact spring is fastened to the inside of the housing at one end and connected to the power source, and the power contact spring presses against the power receiving ring at the other end.
10. The head of claim 5, wherein the two ends of the roller are respectively provided with a positive ion emitter, a negative ion emitter and an LED lamp, and the two emitters and the LED lamps are arranged on two sides of the roller in a back-to-back manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201701658U CN201481320U (en) | 2009-08-20 | 2009-08-20 | Roller type brush broom with positive and negative ion generators and dust collector head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201701658U CN201481320U (en) | 2009-08-20 | 2009-08-20 | Roller type brush broom with positive and negative ion generators and dust collector head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201481320U true CN201481320U (en) | 2010-05-26 |
Family
ID=42420213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201701658U Expired - Fee Related CN201481320U (en) | 2009-08-20 | 2009-08-20 | Roller type brush broom with positive and negative ion generators and dust collector head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201481320U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103300793A (en) * | 2012-03-15 | 2013-09-18 | 株式会社东芝 | Suction port body for electric cleaner and electric cleaner having the same |
| AT514138A1 (en) * | 2013-04-11 | 2014-10-15 | Fachhochschule Technikum Wien | Method and device for eliminating fungal attack |
| KR20190041014A (en) * | 2017-02-20 | 2019-04-19 | 코닌클리케 필립스 엔.브이. | Vacuum cleaner nozzle with rotatable brush |
-
2009
- 2009-08-20 CN CN2009201701658U patent/CN201481320U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103300793A (en) * | 2012-03-15 | 2013-09-18 | 株式会社东芝 | Suction port body for electric cleaner and electric cleaner having the same |
| CN103300793B (en) * | 2012-03-15 | 2016-12-28 | 东芝生活电器株式会社 | The section port body of electric dust collector and possess the electric dust collector of this section port body |
| AT514138A1 (en) * | 2013-04-11 | 2014-10-15 | Fachhochschule Technikum Wien | Method and device for eliminating fungal attack |
| KR20190041014A (en) * | 2017-02-20 | 2019-04-19 | 코닌클리케 필립스 엔.브이. | Vacuum cleaner nozzle with rotatable brush |
| KR102049008B1 (en) * | 2017-02-20 | 2019-11-27 | 코닌클리케 필립스 엔.브이. | Vacuum cleaner nozzle with rotatable brush |
| US10638904B2 (en) | 2017-02-20 | 2020-05-05 | Koninklijke Philips N.V. | Vacuum cleaner nozzle having rotatable brush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20120820 |