CN1044041A - Electric toothbrush - Google Patents
Electric toothbrush Download PDFInfo
- Publication number
- CN1044041A CN1044041A CN 90100097 CN90100097A CN1044041A CN 1044041 A CN1044041 A CN 1044041A CN 90100097 CN90100097 CN 90100097 CN 90100097 A CN90100097 A CN 90100097A CN 1044041 A CN1044041 A CN 1044041A
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- brush
- rod
- toothbrush
- connecting rod
- woollen
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Abstract
An electric toothbrush has a connecting rod (12) that moves backward forward in brush rod.The front end of brush rod (2) is a head toothbrushes (15).Two row's rotating woollen brush bases (16-20) are arranged on it.They respectively have an eccentric rod (22).These woollen brush bases insert in the groove (23) of connecting rod (12) upper edge horizontal expansion by eccentric rod.By this structure.The rectilinear motion of connecting rod (12) can make woollen brush base (16-20) do alternative rotatablely moving.
Description
The present invention one has the electric toothbrush of handle and brush rod.One motor and an actuating device are housed in handle.One head toothbrushes that has several cylindrical brush seats that rotate is independent of one another arranged on brush rod.This toothbrush is with US-PS-4, and 156,620 types are object.
On the toothbrush that people are familiar with, brush rod is inactive.In addition, the work of scrubbing tooth is finished by the rotation of woollen brush base.
The present invention has improved the sort of toothbrush above-mentioned according to this task, makes it have the stronger tooth of scrubbing, and massages the effect of dental bed simultaneously.
According to invention, this task can be finished by actuating device.This actuating device can make brush stroke swing, and does simultaneously and seesaw.
The toothbrush that brush stroke can be swung and the while moves forward backward is that people are familiar with.Such as, FR-PS1,525,112 types.The present invention is applied to a kind of principle of swing toothbrush bar on the rotating toothbrush of a kind of hairbrush.Form a kind of very effective tooth of scrubbing thus, and can massage the function of dental bed well.
According to the sort of US-PS4 that this paper begins to mention, 156,620 type toothbrushes have a tooth bar connecting rod in its head toothbrushes.A gear is housed on each woollen brush base of head toothbrushes inside.All gears in one row's woollen brush base are engaged with each other, and per two gears have one and connecting rod engagement.By this structure, when connecting rod is done when seesawing, each contiguous hairbrush toilet can rotate with relative direction each other.This helps scrubbing tooth.
Because a lot of gears are arranged, and connecting rod is a tooth bar, so the toothbrush that this people are familiar with more complicated structurally.For gear is blocked, this toothbrush requires very little manufacturing tolerance.So manufacturing cost height.If the accuracy of manufacture is poor, also may cause taking place the danger of functional fault.
According to improvement structure of the present invention, the structure of the sort of toothbrush that this paper begins to mention should be to drive each woollen brush base with simple as far as possible method, so that the manufacturing cost of this toothbrush is cheap, particularly can carry out work reliably.The feature of the structure after this improvement is the groove that has some to extend along the horizontal direction of connecting rod principal spread direction on the connecting rod in the head toothbrushes.Each woollen brush base has an eccentric rod that extends along its axis direction.These eccentric rods stretch in the above-mentioned groove.
This toothbrush just can make woollen brush base rotate without gear.Can promote eccentric rod by seesawing of connecting rod, finish the rotation of woollen brush base with this simple method.Can form the transmission of toothbrush simply by this method, and not require strict manufacturing tolerance.The notion of " along the horizontal direction of principal spread direction " does not mean that groove must extend along the vertical direction of principal spread direction; Incline direction along principal spread direction extends just enough.As identical scheme, also can consider to adopt the boss that tilts to extend to replace groove.Connecting rod must have a clinoplain that is used for the rotating eccentricity bar.
A kind of structure that superiority is arranged especially of the present invention is the woollen brush base that has two rows to be arranged side by side on the head toothbrushes, and when connecting rod mediated, the eccentric rod on two row's woollen brush bases was all being arranged relative to one another along the horizontal direction of brush rod.Because eccentric rod is arranged relative to each other, so can do the shaft portion that stretches in the head toothbrushes very narrow.Simultaneously, the rotation direction of adjacent woollen brush base is relative among the row.If eccentric rod alternately is arranged in the center of head toothbrushes and the outside of head toothbrushes, then all woollen brush bases all will rotate along equidirectional.Therefore, the present invention can change the direction of rotation of woollen brush base with simple method.
Because head toothbrushes can move in a circle, so this same electric toothbrush that head toothbrushes also arranged with manual toothbrush then has its oneself superiority.By a kind of special actuating device head toothbrushes is moved in a circle.This actuating device not only drives toothbrush shaft forwards, backwards, and can make toothbrush shaft along its axis swing.As the example of this state of the art, can be with reference to US-PS3,160,902.This known head toothbrushes swing principle similarly is applied on the toothbrush of the present invention with simple method.Be that connecting rod can not rotate in brush rod, and brush rod can center on its axial-movement on handle, actuating device can promote connecting rod along the longitudinal direction, and makes connecting rod center on the rotation that its axis is done change of direction.
By another structure of the present invention, brush rod removably connects together with handle, and in order to be connected with toothbrush shaft, connecting rod is a kayser joint towards an end of handle.Cheap and the replacing easily of the manufacturing cost of this toothbrush.
If according to another structure of the present invention, connecting rod can rotate in brush rod around its axis, and the brush rod on the handle can not rotate around its axis, woollen brush base in the head toothbrushes can its axis be as the criterion and axially moves in addition, then also can make one woollen brush base alternately, leave brush rod more or less, to replace whole brush rod around its axis swing.
For generation rotatablely moves and oscillating motion is used a kind of simple especially actuating device has following superiority, this actuating device has a bevel gear that is driven by a motor drive bevel gear.The axis rotation that this bevel gear is extended around the horizontal direction along connecting rod.An eccentric shaft that is parallel to its axis on this bevel gear stretches in the fixture of rocking arm.This rocking arm is fixed on one and can axially moves in handle and rotate, and along on the toothbrush shaft of brush holder longitudinal direction extension.
If according to another structure of the present invention, installation one is rotatable on eccentric shaft, be arranged in the slide block of rocking arm fixture, and for two sides of the slide block that rocking arm swing made extend along the toothbrush shaft axially parallel and/or the corresponding side of fixture be flexure plane or inclined plane, have only very little wearing and tearing when then this actuating device is worked, and manufacturing cost is also very cheap.
If by another structure of the present invention, the rocking arm that is used for the fixture of slide block partly and between the toothbrush shaft has a radial distance.In this structure, slide block with and the rocking arm pivot center between bigger distance act on rocking arm, this rocking arm also is a toothbrush shaft simultaneously, so just can produce relatively large swing torque, so that there is enough big power that brush rod is swung.
Eccentric shaft stretches into the slide block this structural shape from the toothbrush side can save the position greatly.
Because electric toothbrush is used by many people mostly, and hairbrush also has wearing and tearing, so just require to install a member that allows user change easily on toothbrush.According to EP-0254397, people are familiar with a kind of like this toothbrush.Its brush rod as a Whole-dismountable be fixed on the brush holder.Only must do at brush rod in the general electric toothbrush of swing or motion forwards, backwards, brush rod is a simple relatively member, makes that the expense of changing it is less.Press the toothbrush of EP-0254397, in the head of its brush rod, always have ten gears that drive woollen brush base.These gears are by a rack gear that can axially move in brush rod.This tooth bar has a clutch.When being put into woollen brush base on the brush holder, this clutch couples together with the connecting rod that is installed in the brush holder.Require in this brush rod to possess, and the member that has formed an actuating device makes brush rod generally speaking more expensive relatively, thereby make the expense of changing it also very considerable.
If according to a structure of the present invention with superiority, be that member is a supporting woollen brush base, and insert parts in the head toothbrushes, and each woollen brush base all has one to connect the clutch part that can link together with actuating device by connector, and the member that has woollen brush base of then changing electric toothbrush is very simple and cheap.
According to this structure of the present invention, can one very simple, so mounting strap has the woollen brush base of hairbrush on the also very cheap member of manufacturing cost.This member only is used to place rotatable woollen brush base, and belt driver not.Therefore can purchase several this members uses toothbrush for various people, or upgrades toothbrush with expense seldom.
For gripping insertion piece, the fixture of a lateral opening is arranged on the head toothbrushes.For fixing this insert, be provided with the kayser joint that an available hands takes off.
The actuating device that this paper begins on the described EP0254397 type toothbrush has a tooth bar and several gears.People can realize the present invention on this toothbrush.Be that each woollen brush base that has a concentric pin inserts in the fixture of that gear belong to it.If have on this actuating device one in the first side of toothbrush the connecting rod of some horizontal expansion grooves to be arranged, and be installed on the woollen brush base by one, in the time of just can stretching into eccentric rod in the groove constitute connector behind the insert of packing into, then the structure of toothbrush is generally speaking just simpler.
The present invention can have multiple structural shape.For further specifying its ultimate principle, represented wherein a kind of canonical form in the accompanying drawings, and done following explanation:
Fig. 1 is the longitudinal profile sketch of toothbrush of the present invention.
Fig. 2 is the brush rod three-dimensional exploded view of toothbrush.
Fig. 3 is the longitudinal sectional drawing of brush rod front end.
Fig. 4 is the vertical view of brush rod front end.
Fig. 5 is the longitudinal sectional drawing of toothbrush actuating device.
Fig. 6 is the actuating device rocking arm vertical view that has the member that blocks.
The toothbrush cross-sectional view of Fig. 7 for cutting open along Fig. 5 VII-VII line.
Fig. 8 is the brush rod front end longitudinal sectional drawing of toothbrush of the present invention.
Fig. 9 is the vertical view of brush rod.
Figure 10 is the axonometric chart of brush rod insert.
Figure 11 is the connecting rod front end perspective view of brush rod.
Figure 12 is not for the brush rod axonometric chart of insert.
The toothbrush of representing as a whole in Fig. 1 can be pulled down from handle by a handle and, and the brush rod of fixing rotationally 2 is formed.One motor 3 is housed in brush holder 1.This motor is by the toothbrush shaft 5 of an actuating device 4 this type of driving toothbrushes, so that this toothbrush shaft can center on its axis swing, and axially moves simultaneously.Actuating device 4 has a drive bevel gear 6 by motor 3 drivings.This gear drive one bevel gear 7.The gear shaft 8 that bevel gear 7 can be extended around the horizontal direction along motor 3 rotates.Bevel gear 7 has an eccentric shaft 9 that is parallel to its gear shaft 8.One rotatable slide block 10 is housed on this eccentric shaft.This slide block can not rotate in rocking arm 11.By the circular motion track of eccentric shaft 9, rocking arm 11 is motion backward forward, because rocking arm 11 is fixed together with toothbrush shaft 5, and toothbrush shaft 5 is fixed in the brush holder 1, and can axially move and rotate, so rocking arm can not move to the side.When eccentric shaft when this plan outwards moves, the motion of toothbrush shaft 5 can make the axis swing around toothbrush shaft 5 of the rocking arm 11 that has toothbrush shaft 5.Do detailed description again about this back.
Connecting rod 12 in the brush rod 2 moves vertically, and can not rotate relative to brush rod 2.Connecting rod 12 is fixed in the brush rod 2.It can move vertically, but can not rotate relative to brush rod 2.Connecting rod 12 has a fixed connector 13 by an end of brush holder.By it connecting rod 12 and toothbrush shaft 5 are fixed together.This moment, connecting rod 12 can not rotate relative to toothbrush shaft 5.Brush rod 2 correspondingly removably connects together with brush holder by a fixed connector 14.Because toothbrush shaft 5 self can be done limited rotation around the toothbrush axis, also can do limited rotation by its connecting rod 12, so if be necessary, the structure of this fixed connector 14 can make brush rod 2 rotate relative to brush holder 1 around its axis around the toothbrush axis.
The front end of brush rod 2 has a head toothbrushes 15.Several cylinders type woollen brush base 16-20 is housed in this head toothbrushes.Hairbrush on these woollen brush bases stretches out outside the head toothbrushes 15.In the head toothbrushes inboard, each woollen brush base all has an eccentric rod 22.This eccentric rod stretch into connecting rod 12 along in the groove 23 of horizontal expansion.The connecting rod 12 of motion backward promotes eccentric rod 23 forward, and woollen brush base 16 to 20 is rotated.
Fig. 2 is the structure of brush rod 2.In order to see structure clearly, arranging the groove 23 of 5 horizontal expansions before and after the end of connecting rod 12 in the drawings altogether, 23a, 23b, 23c and 23d by head toothbrushes.Eccentric rod 22 on the woollen brush base 16-20 can stretch in these grooves.On the head toothbrushes 15 of topology example, also on end one arrange woollen brush base, i.e. this row of woollen brush base 16b side by side with woollen brush base 16-20.Other woollen brush base of woollen brush base 16b and this row equally also stretches into the groove 23 of connecting rod 12 by the eccentric rod 22b on each brush holder, 23a, and 23b, 23c is among the 23d.As shown in the figure, all woollen brush base 16-20 and 16b rotatably are positioned in the lid 24.This lid is put into head toothbrushes 15 as insert from above.
The profile of Fig. 3 represents how woollen brush base 16-20 passes through the groove 23 that each eccentric rod 22 inserts connecting rods 12,23a, and 23b, 23c, among the 23d.Fig. 4 represents, when connecting rod 12 mediates, eccentric rod 22,22b and accordingly other eccentric rod be to arrange relatively along the horizontal direction of head toothbrushes 15.
Fig. 5 is the enlarged drawing of Fig. 1, and this figure illustrates that motor 3 is that drive bevel gear how to pass through it drives bevel gear 7.The gear shaft 8 of bevel gear 7 is positioned at the two ends of the housing of brush holder 1.For purposes of illustration, rocking arm 11 has a fixture 25.Slide block 10 is positioned on this fixture.Eccentric shaft 9 stretches in this slide block 10 rotationally.Rocking arm 11 does not turn and immovably links together with toothbrush shaft 5.
Fig. 6 represents that the fixture 25 of fixing rocking arm 11 on antitorque toothbrush shaft 5 is quadrate, and slide block 10 correspondingly also is quadrate.This slide block 10 has a hole 26.Eccentric shaft 9 stretches in this hole.If on the lower position that ° arrival of eccentric shaft 9 Rotate 180s dots, then rocking arm 11 correspondingly moves downward, so that toothbrush shaft 5 also axially moves.Because be in the side that eccentric shaft 9 on the unillustrated centre position is positioned at toothbrush shaft 5, so rocking arm 11 also should be pushed in the side originally, but because two sides 27 of slide block 10, the 28th, arcual, and extend the below of toothbrush axial slider 10 as shown in Figure 6, so this is impossible.Slide block 10 in fixture 25 is pressed to the side with rocking arm 11, so that rocking arm has formed a swing torque around toothbrush shaft 5 swing and simultaneously correspondingly during rotary tooth brush axle 5.
Fig. 7 represents that the side 27,28 of slide block 10 is made into arc.By this structure, when eccentric shaft 9 was in the position of representing among the figure, rocking arm 11 had formed an obliquity, and can not move to the side.Eccentric shaft 9 relative Fig. 6 among this figure have rotated 90 °.
According to the version of Fig. 8, brush rod 2 has formed a head toothbrushes 15 at its front end equally.In this head toothbrushes 15, put into a removable insert 29 from above.In this insert, be equipped with rotatingly, have the woollen brush base 16-20 of hairbrush 21.In Fig. 8, each woollen brush base of 16-20 all has an eccentric rod 22 that stretches out from insert 29,22a, 22b, 22c, 22d downwards.Each eccentric rod all stretches into the groove 23 along horizontal expansion on the connecting rod 12,23a, and 23b, 23c is among the 23d.Connecting rod 12 is contained in the brush rod 2, can move axially.For the present invention importantly, the insert 29 that can put into the fixture 30 of head toothbrushes 15 is convenient to change.If insert 29 is extracted from fixture 30, then eccentric rod 22 also skids off from the groove of opening up 23.
Fig. 9 has dotted 23,23a, 23b, 23c, 23d.People also can see the eccentric rod 22 that stretches in this groove in the figure, 22a, 22b, 22c and 22d, and the eccentric rod on another row's woollen brush base.If connecting rod 12 is done forward motion backward, then stretch into groove 23,23a, 23b, 23c, the eccentric rod 22 among the 23d, 22a, 22b, 22c and 22d and other eccentric rod can make all woollen brush base 16-20 and not the woollen brush base of mark all rotate.
Have one to be positioned at the insert 29 lateral spacers 31 that hairbrush 21 is arranged among Figure 10.Member can be stuck in the fixture 30 by it.
Figure 11 is the axonometric chart of connecting rod 12 previous sections.The groove 23 that horizontal expansion is arranged on this connecting rod, 23a, 23b, 23c and 23d.As insert 29 is put into fixture 30, the eccentric rod 22 on the woollen brush base 16-20 among Fig. 8 and Fig. 9 then, 22a, 22b, 22c is just 22d stretches in the above-mentioned groove.
Figure 12 is whole brush rod 2.Because can be in brush rod the insert 29 of tape swapping hairbrush 21 more, so brush rod and unillustrated handle can not be fixed together with dismantling.
The component names table that uses
1. toothbrush handle
2. brush rod
3. motor
4. transmission device
5. toothbrush shaft
6. drive bevel gear
7. bevel gear
8. gear shaft
9. eccentric shaft
10. slide block
11. rocking arm
12. connecting rod
13. fixed connector
14. kayser union joint
15. head toothbrushes
16. woollen brush base
17. woollen brush base
18. woollen brush base
19. woollen brush base
20. woollen brush base
21. hairbrush
22. eccentric rod
23. groove
24. lid
25. fixture
26. hole
27. side
28. side
29. insert
30. fixture
31. card
Claims (13)
1, electric toothbrush, have an one handle and a brush rod, one motor and an actuating device are housed in this handle, have one to have several head toothbrushes of the cylindrical brush seats of rotation independently of one another in the brush rod, it is characterized in that, the structure of actuating device (4) can make brush rod (2) do swing, and motion backward forward simultaneously.
2, electric toothbrush according to claim 1, it is characterized in that, described woollen brush base is by a connecting rod transmission, by transmission this connecting rod is moved backward forward along the longitudinal direction of brush rod, connecting rod (12) is arranged in the groove (23) that extends along the horizontal direction of principal spread direction on the part of head toothbrushes (15), the eccentric rod (22) that extends in parallel with its axis on the woollen brush base (16-20) stretches in the above-mentioned groove.
3, electric toothbrush according to claim 2, it is characterized in that, the woollen brush base (16 that has two rows to be arranged side by side on the head toothbrushes (15), 16b), when connecting rod (12) when mediating, two row's woollen brush bases (16,16b) eccentric rod on (22,22b) along relative thirty years of age of the horizontal direction of brush rod (2).
4, according to claim 2 and 3 described electric toothbrushes, it is characterized in that, connecting rod (12) can not be arranged in brush rod (2) rotationally, rotate and be positioned at the axis that brush rod (2) on the brush holder (1) can center on brush holder (1), actuating device (4) is used to promote the connecting rod (12) on the longitudinal axis, makes its longitudinal axis that centers on it do the rotation of alternating direction.
5, electric toothbrush according to claim 4 is characterized in that, brush rod (2) removably links together with brush holder (1), and in order to be connected with toothbrush shaft (5), connecting rod (12) has a fixed connector (13) by an end of brush holder.
6, according at least one described electric toothbrush in above-mentioned several the claim, it is characterized in that, connecting rod (12) can be arranged in brush rod (2) rotationally around its axis, and brush rod (2) can not be positioned on the brush holder rotationally around its axis, and the woollen brush base (16-20) in the head toothbrushes (15) can its axis be as the criterion and axially moves.
7, according at least one described electric toothbrush in above-mentioned several the claim, it is characterized in that, actuating device (4) has a drive bevel gear by motor 3 (6) to drive, and around the bevel gear (7) of rotating with the vertical gear shaft of connecting rod (12), the parallel eccentric shaft (9) that extends with its axis on the bevel gear (7) stretches in the fixture (25) of a rocking arm (11), this rocking arm is fixed on one and is contained in the brush holder (1), can axially move and rotate, and along on the toothbrush shaft (5) of the longitudinal extension of brush holder (1).
8, electric toothbrush according to claim 6, it is characterized in that, a rotatable slide block (10) is housed on eccentric shaft (9), this slide block is placed in the fixture (25) of rocking arm (11), do swing for making rocking arm (11), two sides that extend in parallel along toothbrush shaft (27,28) of slide block (10) and/or the corresponding side of fixture (25) are arc or inclined plane.
9, according at least one described electric toothbrush in above-mentioned several the claim, it is characterized in that, the part of the fixture that has slide block (10) (25) of rocking arm, and between the toothbrush shaft (5) radial distance is arranged.
10, according at least one described electric toothbrush in above-mentioned several the claim, it is characterized in that eccentric shaft (9) stretches into the slide block (10) from the side of toothbrush.
11, according at least one described electric toothbrush in above-mentioned several the claim, it is characterized in that, woollen brush base in the head toothbrushes links together with the actuating device that drives it, an insert that has brush rod that designs for user connects together with toothbrush with changing easily, this member is to support woollen brush base (16-20), and can put into the insert (29) of head toothbrushes (15), woollen brush base (16-20) respectively has one can connect the connector (eccentric rod 22 that connects together with actuating device (connecting rod 12) by connector, 22a, 22b, 22c, 22d).
12, according to the described electric toothbrush of claim 11, it is characterized in that for gripping insertion piece (29), head toothbrushes (15) has the fixture (30) of a lateral opening, for fixing this insert (29), be equipped with one and take off the dop connector (dop 31) that insert designs for available hands.
13, according to claim 11 or 12 described electric toothbrushes, it is characterized in that, actuating device has a connecting rod (12), this connecting rod is arranged in the groove (23 that some horizontal expansions are arranged on the part of head toothbrushes, 23a, 23b, 23c and 23d), each connector is put into eccentric rod (22) formation that insert (29) back just can enter groove (23) by being installed on the woollen brush base (16-20).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8900234U DE8900234U1 (en) | 1989-01-11 | 1989-01-11 | |
| DEG8900234.2 | 1989-01-11 | ||
| EP89102098A EP0357863B1 (en) | 1988-09-09 | 1989-02-08 | Electric toothbrush |
| EP89102098.4 | 1989-02-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1044041A true CN1044041A (en) | 1990-07-25 |
| CN1026061C CN1026061C (en) | 1994-10-05 |
Family
ID=25954210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90100097 Expired - Fee Related CN1026061C (en) | 1989-01-11 | 1990-01-10 | Electric brushes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026061C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349555C (en) * | 2002-10-11 | 2007-11-21 | 颛清平 | Electric toothbrush |
| CN102921649A (en) * | 2012-11-02 | 2013-02-13 | 山西省电力公司临汾供电分公司 | Electrified device for cleaning contacts of isolating switches |
| CN102406520B (en) * | 2006-08-29 | 2014-09-10 | 欧姆龙健康医疗事业株式会社 | Electric toothbrush |
| CN105848522A (en) * | 2013-12-20 | 2016-08-10 | 皇家飞利浦有限公司 | A power toothbrush with multiple bristle motions producing an audible sound |
| CN105919687A (en) * | 2016-05-26 | 2016-09-07 | 胥振坡 | Portable power-driven water supplying toothbrush |
| WO2018214949A1 (en) * | 2017-05-26 | 2018-11-29 | Innotech Appliance Limited | Powered toothbrush with bristles having random motion |
-
1990
- 1990-01-10 CN CN 90100097 patent/CN1026061C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349555C (en) * | 2002-10-11 | 2007-11-21 | 颛清平 | Electric toothbrush |
| CN102406520B (en) * | 2006-08-29 | 2014-09-10 | 欧姆龙健康医疗事业株式会社 | Electric toothbrush |
| CN102921649A (en) * | 2012-11-02 | 2013-02-13 | 山西省电力公司临汾供电分公司 | Electrified device for cleaning contacts of isolating switches |
| CN105848522A (en) * | 2013-12-20 | 2016-08-10 | 皇家飞利浦有限公司 | A power toothbrush with multiple bristle motions producing an audible sound |
| CN105919687A (en) * | 2016-05-26 | 2016-09-07 | 胥振坡 | Portable power-driven water supplying toothbrush |
| WO2018214949A1 (en) * | 2017-05-26 | 2018-11-29 | Innotech Appliance Limited | Powered toothbrush with bristles having random motion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1026061C (en) | 1994-10-05 |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: American New York Applicant after: Bausch & Lomb Address before: Swiss zollikofen Applicant before: Gimelli & Co. AG. |
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