WO2011002460A1 - Toothbrush having improved tuft retention and anchor wire - Google Patents
Toothbrush having improved tuft retention and anchor wire Download PDFInfo
- Publication number
- WO2011002460A1 WO2011002460A1 PCT/US2009/049432 US2009049432W WO2011002460A1 WO 2011002460 A1 WO2011002460 A1 WO 2011002460A1 US 2009049432 W US2009049432 W US 2009049432W WO 2011002460 A1 WO2011002460 A1 WO 2011002460A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- staple
- grooves
- toothbrush
- tuft
- major surface
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
- A46B3/16—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by wires or other anchoring means, specially for U-shaped bristle tufts
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
Definitions
- the present invention relates generally to brushes, especially toothbrushes, and specifically to an improved anchor or staple design for securing tufts of bristles within the head of the brush.
- the brushes are injection molded with empty tuft holes in the toothbrush head.
- the tuft holes may also be drilled after the injection molding as well as initially formed in the head concurrently with the injection molding.
- U shaped tufts of bristles are inserted into the holes in the head.
- Each tuft of bristles is held in place by a plate-like staple that is wider than the tuft hole so that when the staple is used to drive the U-shaped bristle tufts into the tuft hole, the edges of the staple slightly cut and deform the sides of the hole.
- the pressure and resulting static friction of the surrounding plastic on the staple contributes to forces maintaining the staple in place.
- there are certain problems associated with brushes made in this manner are certain problems associated with brushes made in this manner.
- toothbrush staples of the rectangular type have become available in which at least one of the major surfaces thereof is provided with parallel horizontal grooves (i.e., grooves that extend parallel with a longitudinal axis of the staple), thereby yielding a staple that has been found to be more resistant to becoming separated from its tuft hole than staples with smooth surfaces
- Staples ha ⁇ e also been developed having a rounded edges that eliminate and or minimize the problem of tuft weakening and possible rupture of filaments or bristles at the bight of the L .
- the zone or area of contact between the tower staple edge and the bristle filament closely matches the U shape at the bight portion of each tuft. In turn, this permits the staples to be driven deeper into the head and thus a larger and more consistent force can be applied to each U shaped tuft without cutting or damaging the filaments.
- oligodynamic staples constructed of materials having oligodynamic action have also been disclosed in the art. These oligodynamic staples have smooth major surfaces and are constructed of a material having oligodynamic action, such as cadmium, silver, brass, copper, stainless steel, titanium and mercury.
- toothbrush staples are constructed of a nickel-silver alloy. Due to the costs associated with the nickel-silver alloy, it has long been desired to create staples from cheaper metals, such as brass. While the general concept of using a brass staple has been disclosed, testing and experimentation have proven that merely creating and using a flat-faced brass staple cannot be used in the manufacture of toothbrushes to provide effective tuft retention. Moreover, merely applying known groove patterns has also proven to be ineffective.
- the present invention is a staple having an optimized pattern of grooves in at least one of its major surfaces.
- the optimized groove pattern makes it possible to create the staples out of a material that is more cost effective than a nickel- silver alloy, such as brass, while still providing the necessary tuft retention so as to be utilized in a viable toothbrush product.
- the invention can be a toothbrush comprising: a handle; a head connected to said handle and having at least one tuft hole extending into the head from a surface; at least one tuft of bristles positioned in the tuft hole; and a brass staple located in the tuft hole anchoring the tuft of bristles in the tuft hole, the brass staple ha ⁇ ing a longitudinal axis and a first major surface, wherein a plurality of substantially parallel grooves are formed into the first major surface, each of the grooves extending along a linear axis from a bottom edge of the brass staple to a top edge of the brass staple. the linear axis intersecting the longitudinal axis at an acute angle of 40 to 70 degrees,
- the present invention is a staple having a slanted pattern of grooves formed into both major surfaces of the staple.
- the slope of the slanted pattern of grooves for each major surface is selected so that the patterns on both of the surfaces act in a complimentary and concerted manner to improve tuft retention.
- the invention is a toothbrush comprising a handle; a head connected to said handle and having at least one tuft hole extending into the head from a surface; at least one tuft of bristles positioned in the tuft hole; a staple located in the tuft hole anchoring the tuft of bristles in the tuft hole, the staple having a longitudinal axis, a first major surface, and a second major surface; a first set of substantially parallel grooves formed into the first major surface of the staple, each of the grooves in the first set extending along a linear axis from a bottom edge of the staple to a top edge of the staple and slanting upward from a first lateral edge of the staple to a second lateral edge of the staple, the linear axis of the first set of grooves intersecting the longitudinal axis at a first acute angle; and a second set of substantially parallel grooves formed into the second major surface of the staple, each of the grooves in the second set extending along a linear axis from
- the invention is a toothbrush comprising: a handle; a head connected to said handle and having at least one tuft hole extending into the head from a surface; at least one tuft of bristles positioned in the tuft hole; a staple located in the tuft hole anchoring the tuft of bristles in the tuft hole, the staple having a longitudinal axis and a first major surface, wherein a plurality of substantially parallel grooves are formed into the first major surface, each of the grooves extending along a linear axis from a bottom edge of the staple to a top edge of the staple, the linear axis intersecting the longitudinal axis at an acute angle; and each of the groo ⁇ es having a width and adjacent grooves separated by a distance, wherein the ratio of the distance to the width is between 3,0 and 4iJ, [0013]
- the invention can be an ansate implement comprising: a handle: a head connected to said handle and having at least one hole
- the invention can be a staple for securing cleaning elements within an ansate implement, the staple comprising a flat wire having a longitudinal axis and a first major surface, wherein a plurality of spaced-apart grooves are formed into the first major surface, each of the grooves extending along a linear axis from a bottom edge of the flat wire toward a top edge of the flat wire, the linear axis intersecting the longitudinal axis at an acute angle of 40 to 70 degrees.
- FIG. 1 is a front perspective view of a staple according to a first embodiment of the present invention.
- Figure 2 is a front view of the staple of Figure 1.
- Figure 3 is a top view of the staple of Figure 1.
- Figure 4 is a front view of a head of a toothbrush incorporating the staples of Figure 1 to anchor cleaning elements, which are in the form of tufts of bristles.
- Figure 5 is a cross-sectional view of the toothbrush head along line V-V of Figure 4.
- FIG. 6 is a cross-section view of the toothbrush head along line Vl-VI of Figure 4.
- FIG. 7 is a front perspective view of a staple according to a second embodiment of the present invention.
- Figure 8 is a front view of the staple of Figure 7.
- Figure 9 is a rear view of the staple of Figure 7.
- Figure 1OA is a table of experimental data for tuft retention for a first toothbrush type using Ag-Ni staples having longitudinal grooves.
- Figure 1OB is a graph of the experimental data of the table of FlG. 1OA.
- Figure 1 IA is a table of experimental data for tuft retention for the first toothbrush type using brass staples having angled grooves according to an embodiment of the present invention.
- Figure 1 IB is a graph of the experimental data of the table of FIG. 1 IA.
- Figure 12A is a table of experimental data for tuft retention for a second toothbrush type using Ag-Ni staples having longitudinal grooves.
- Figure 12B is a graph of the experimental data of the table of FIG. 12 A.
- Figure 13A is a table of experimental data for tuft retention for the second toothbrush type using brass staples having angled grooves according to an embodiment of the present invention.
- Figure 13B is a graph of the experimental data of the table of FIG. 13 A.
- Figure 14A is a table of experimental data for tuft retention for a third toothbrush type using Ag-Ni staples having longitudinal grooves.
- Figure 14B is a graph of the experimental data of the table of FIG. 14A.
- Figure 15 A is a table of experimental data for tuft retention for the third toothbrush type using brass staples having angled grooves according to an embodiment of the present invention.
- Figure 15B is a graph of the experimental data of the table of FIG. 15 A.
- a staple 100 is illustrated according to one embodiment of the present invention.
- the staple 100 is a flattened piece of wire that is used as an anchor in a brash, particularly a toothbrush, to secure U shaped tufts of bristles within tuft holes created in the head of an ansate implement, such as a toothbrush.
- the staple 100 has a substantially rectangular cross-section (both longitudinal and transverse) and is elongated along the longitudinal axis A-A. Of course, other shapes can be utilized in creating the staple.
- the staple 100 is delimited by a perimeter comprising a top edge 10. a bottom edge 11, a first lateral edge 12 and a second lateral edge 13.
- the staple 100 has a length L, a height H and a thickness t.
- the length L of the staple 100 will depend on the size of the tuft hole in which it is to be inserted, but is in a preferred range of 2.09 to 2.13 millimeters, and most preferably about 2.11 millimeters for a 1.70 mm tuft hole.
- the height H of the staple 100 will also depend on the dimensions of its end use, but is in a preferred range of 1.49 to 1.51 millimeters, and most preferably about 1.50 millimeters for a 1.70 mm tuft hole.
- the thickness t of the staple 100 will also depend on its end use, but is in a preferred range of 0.24 to 0.26 millimeters, and most preferably about 0.25 millimeters. The invention, however, is not so limited in all embodiments and other dimensions may be utilized. The exact dimensions in any final product will be dictated by the size of the tuft hole, the type and size of the bristle tufts, the type of brush in which the staples are used, etc. Furthermore, while the staple 100 is illustrated as having an overall uniform thickness t, height H and length L. one or more of these dimensions may be tapered and/or irregular.
- the edges 10-13 of the staple 100 are substantially flat.
- one or more of the edges 10-13 may be shaped to provide additional tuft retention and/ or decrease pressure at the bight of the bristle tuft.
- the lateral edges 12-13 may be serrated, sharpened or barbed while the bottom edge 11 may be rounded.
- the staple 100 further comprises a first major surface 20 and a second major surface 21.
- the second major surface 21 is opposite the first major surface 20 so that the staple 10 ⁇ is a flat rectangular plate-like structure.
- the first major surface 20 includes a first set of grooves 30 formed into and covering the substantial entirety of the first major surface 20. All of the grooves 30 are arranged so as to be substantially parallel to one another and equidistantly spaced apart from one another. In certain embodiments, however, all of the grooves 30 may not be substantial! ⁇ parallel to one another and the distance between adjacent grooves ma ⁇ vary either irregularly or as a function of distance from one or both of the lateral edges 12-13.
- this ridge 31 is an elongated strip and is not segmented.
- the first major surface 20 contain no grooves that intersect with one another.
- the groove pattern on the first major surface 20 is preferably free of any intersecting grooves.
- the grooves 30 are linear in shape for the illustrated preferred embodiment, each extending along a groove axis B-B. In other embodiments, the grooves 30, however, may be curved, zig-zag or an irregular shape.
- the grooves 30 are preferably spaced apart from one another by a distance D of 0.29 to 0.31 millimeters, and most preferably about 0.30 millimeters.
- the grooves 30 preferably have a width W of 0.09 to 0.11 millimeters, and most preferably about 0.10 millimeters. In one embodiment, it is preferred that the ratio of the distance D to width W be in a range of 3.0 to 4.0. and most preferably be 3.0.
- the grooves 30 have a depth of 0.09 to 0.11 millimeters, and most preferably about 0.11 millimeters. The exact dimensions of the grooves and their pattern, however, can vary greatly and are not to be considered limiting of the present invention unless specifically recited in the claims.
- the depth of the grooves 30 is preferably no greater than one-third of the thickness t of the staple 100. It has been discovered that making the grooves 30 having a depth greater than one-third of the thickness t results in undesired distortion of the wire/staple 100.
- the grooves 30 extend the entire height H of the staple 100, extending from the bottom edge 11 to the top edge 10.
- the grooves 30 are oriented on the first major surface
- the groove axis B-B of each of the grooves 30 forms a non- normal angle with the longitudinal axis A-A of the staple 100. More specifically, the groove axis B-B of the grooves 30 intersect the longitudinal axis A-A at an acute angle ⁇ that is specially selected to provide adequate tuft retention and retain structural integritv of the staple 100 when inserted in the toothbrush. It has been surprising! ⁇ and unexpectedly discovered that the acute angle ⁇ plays a determining role in achieving the desired goal of increased tuft retention, depending also on the metal of construction. The angle of the groove pattern has also been discovered to allow cheaper and/or softer metals to be used without resulting in unwanted deformation and/or curling of the wire.
- a metal is selected for the staple 100 that has a Brinell hardness less than that of nickel-silver and greater than aluminum.
- the acute angle ⁇ needs to be 40 to 70 degrees, more preferably 55 and 65 degrees, and most preferably about 60 degrees.
- the wire has a tendency to deform and coil.
- the angle is greater than 70 degrees for brass, it is difficult to imprint the angled groove pattern.
- experiments using destructive testing of toothbrushes has shown that, when compared to other grooved or non-grooved anchors, tuft retention has surprisingly increased up to 25%.
- the grooves 30 are oriented on the first major surface 20 as slanting upward from the bottom edge 11 to the top edge 10 going from the first lateral edge 12 to the second lateral edge 13.
- the grooves 30 can be arranged to slant upward in the opposite direction if desired, i.e., from the bottom edge 11 to the top edge 10 going from the second lateral edge 13 to the first lateral edge 12.
- the second major surface 21 of the staple 100 is preferably a smooth surface that is substantially free of grooves or other topography. In other embodiments (as will be discussed below ⁇ with respect to FIGS. 7- 9), the second major surface 21 may also be patterned with grooves.
- the grooves 30 can be formed by roll pressing or stamping a sheet of brass with a die and then cutting the sheet into the desired strips, which are then cut to form the staples 100.
- each of the bristle tufts 50 are anchored in the tuft holes 215 by one of the staples 100. While bristle tufts 50 are illustrated, other cleaning elements could be used, including elastomeric fingers, fibers, etc.
- the toothbrush 200 comprises a head 210 and a neck portion 220 that extends into an elongated handle. A plurality of tuft holes 215 are formed into the front surface 211 of the head 210.
- the head 210 is typically constructed of a hard plastic, such as polypropylene.
- Each of the plurality of tuft holes 215 in the toothbrush head 210 extend downwardly from the front surface 211 of the head 210 along a central axis C-C.
- the tuft holes 215 are preferably circular bores formed into the head 210.
- the tuft holes 215, of course, can be formed to be in other shapes if desired.
- the bristle tufts 50 are bent in a U shape and secured in the tuft holes 215 by the staples 100.
- the staples 100 are driven into the tuft holes 215 so that each bristle tuft 50 bends in the U shape and comprises a bight portion 51 and two extending legs 52, 53.
- the legs 52, 53 of the bristle tufts 50 extend upward and out of the holes 215 and above the front surface 211 of the head 210.
- the bight or curved part 51 of the bristle tuft 50 is contacted by the bottom edge 11 of staple 100 while the two legs 52, 53 extend upwardly and define the visible bristles of the toothbrush.
- each staple 10 The two lateral edges 12-13 of each staple 10 are seen to extend slightly into opposite sidewalls of each hole 215.
- the rotational orientation of the plane which contains each staple 100 is not critical, i.e., the staple 100 may be installed by rotating it, before installation, about its central vertical axis differently from the rotational orientation of about 45 degrees to assume any desired orientation. It is preferred, however, that the staples 100 be positioned in the tuft holes 215 so that the longitudinal axis A-A of the staples 100 are substantiall ⁇ normal to the central axis C-C of the tuft holes 215.
- FIGS. 7-9 a staple 10OA is illustrated according to a second embodiment of the invention.
- the basic structure of the staple IOOA is identical to that of staple 100. Therefore, like numbers have been used to identify corresponding components and features with the addition of suffix "A.” In order to avoid redundancy, those features of staple 1 ⁇ A that are different than the staple 100 will be discussed below with the understanding that the aforementioned discussion is applicable.
- the major difference between staple IOOA and staple 100 is that the second major surface 21 A of the staple IOOA comprises a second set of grooves 4OA in addition to the first set of grooves 3OA formed into the first major surface 2OA.
- the discussion above with respect to the grooves 30 of staple 100 is generally applicable to both grooves 3OA and grooves 4OA, and is hereby incorporated by reference. It should be noted, however, that in this embodiment of the invention, the staple IOOA is not limited to an exact range for the acute angle ⁇ . However, it is still preferred that the acute angle be 40 to 70 degrees.
- the grooves 3OA formed into the first surface 2OA of the staple IOOA are oriented so as to as slant upward from the bottom edge 1OA to the top edge HA going from the first lateral edge 12 to the second lateral edge 13.
- the grooves 4OA formed into the second surface 21 A of the staple IOOA are oriented on the second major surface 21 A so as to slant upward from the bottom edge HA to the top edge 1OA going from the second lateral edge 13 to the first lateral edge 12.
- the grooves 3OA and the grooves 4OA extend in opposing slanted directions.
- the grooves 3OA and grooves 4OA are arranged so that their openings along the top and bottom edges 1OA, HA alternate along the length of the staple IOOA.
- Toothbrush 1 An experiment was conducted on three different types of commercially available toothbrushes to determine and compare the tuft retention for typical Ag-Ni staples having longitudinal grooves (i.e., 0 degrees) and brass staples having grooves angled at 60 degrees according to the present invention.
- the three different toothbrushes tested are referred to herein as Toothbrush 1, Toothbrush 2, and Toothbrush 3.
- test data for Toothbrush 1 will be discussed.
- the details of the test parameters and tuft retention data for Toothbrush 1 using Ag-Ni staples having longitudinal grooves as the anchors is set forth in the table of Figure 1OA and the graph of Figure 1OB.
- the details of the test parameters and tuft retention data for Toothbrush 1 using Ag-Ni staples having longitudinal grooves as the anchors is set forth in the table of Figure 1OA and the graph of Figure 1OB.
- Toothbrush 1 using brass staples having grooves angled at 60 degrees as the anchors is set forth in the table of Figure 1 IA and the graph of Figure 1 IB.
- the longitudinally grooved Ag-Ni staples resulted in an Average Tuft Retention of 3.7 kgf and a CPK of 1.5.
- the brass staples having grooves angled at 60 degrees resulted in an Average Tuft Retention of 3.7 kgf and a greater CPK of 1.82.
- test data for Toothbrush 2 will be discussed.
- the details of the test parameters and tuft retention data for Toothbrush 2 using Ag-Ni staples having longitudinal grooves as the anchors is set forth in the table of Figure 12A and the graph of Figure 12B.
- the details of the test parameters and tuft retention data for Toothbrush 2 using brass staples having grooves angled at 60 degrees as the anchors is set forth in the table of Figure 13A and the graph of Figure 13B.
- the longitudinally grooved Ag-Ni staples resulted in an Average Tuft Retention of 3.8 kgf and a CPK of 2.24.
- the brass staples having grooves angled at 60 degrees resulted in an improved Average Tuft Retention of 4.0 kgf and a greater CPK of 2.48.
- test data for Toothbrush 3 will be discussed.
- the details of the test parameters and tuft retention data for Toothbrush 3 using Ag-Ni staples having longitudinal grooves as the anchors is set forth in the table of Figure 14A and the graph of Figure 14B.
- the details of the test parameters and tuft retention data for Toothbrush 3 using brass staples having grooves angled at 60 degrees as the anchors is set forth in the table of Figure 15A and the graph of Figure 15B.
- the longitudinally grooved Ag-Ni staples resulted in an Average Tuft Retention of 2.4 kgf and a CPK of 0.63.
- the brass staples having grooves angled at 60 degrees resulted in an improved Average Tuft Retention of 2.8 kgf and a greater CPK of 1.09.
Landscapes
- Brushes (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2012103333/12A RU2472404C1 (en) | 2009-07-01 | 2009-07-01 | Toothbrush with improved fixation of beams and fixing wire |
CN200980160310.7A CN102469871B (en) | 2009-07-01 | 2009-07-01 | There is toothbrush and the anchor of bunch maintenance of improvement |
PCT/US2009/049432 WO2011002460A1 (en) | 2009-07-01 | 2009-07-01 | Toothbrush having improved tuft retention and anchor wire |
CA2764966A CA2764966C (en) | 2009-07-01 | 2009-07-01 | Toothbrush having improved tuft retention and anchor wire |
MX2011012446A MX2011012446A (en) | 2009-07-01 | 2009-07-01 | Toothbrush having improved tuft retention and anchor wire. |
KR1020127002823A KR101402438B1 (en) | 2009-07-01 | 2009-07-01 | Toothbrush having improved tuft retention and anchor wire |
AU2009348907A AU2009348907B2 (en) | 2009-07-01 | 2009-07-01 | Toothbrush having improved tuft retention and anchor wire |
EP09790029.4A EP2448446B1 (en) | 2009-07-01 | 2009-07-01 | Toothbrush having improved tuft retention and anchor wire |
PH12013502553A PH12013502553A1 (en) | 2009-07-01 | 2013-12-09 | Toothbrush having improved tuft retention and anchor wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2009/049432 WO2011002460A1 (en) | 2009-07-01 | 2009-07-01 | Toothbrush having improved tuft retention and anchor wire |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011002460A1 true WO2011002460A1 (en) | 2011-01-06 |
Family
ID=42041528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/049432 WO2011002460A1 (en) | 2009-07-01 | 2009-07-01 | Toothbrush having improved tuft retention and anchor wire |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP2448446B1 (en) |
KR (1) | KR101402438B1 (en) |
CN (1) | CN102469871B (en) |
AU (1) | AU2009348907B2 (en) |
CA (1) | CA2764966C (en) |
MX (1) | MX2011012446A (en) |
PH (1) | PH12013502553A1 (en) |
RU (1) | RU2472404C1 (en) |
WO (1) | WO2011002460A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9119462B2 (en) | 2011-07-23 | 2015-09-01 | Braun Gmbh | Oral cleaning implement having a plastic staple comprising a cavity |
WO2021087647A1 (en) | 2019-11-04 | 2021-05-14 | Colgate-Palmolive Company | Oral care implement |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3381320A1 (en) * | 2017-03-31 | 2018-10-03 | The Gillette Company LLC | Head for an oral care implement, oral implement and method for manufacturing such head |
EP3381319A1 (en) * | 2017-03-31 | 2018-10-03 | The Gillette Company LLC | Head for an oral care implement, oral care implement and method for manufacturing such head |
EP3381321A1 (en) * | 2017-03-31 | 2018-10-03 | The Gillette Company LLC | Head for an oral care implement, oral care implement and method for manufacturing such head |
JP2018183275A (en) * | 2017-04-24 | 2018-11-22 | ライオン株式会社 | toothbrush |
DE102019121693A1 (en) * | 2019-08-12 | 2021-02-18 | Berkenhoff Gmbh | Brush with tufts of bristles attached by means of clamps and wire for producing such clamps |
CN114667086B (en) * | 2019-10-24 | 2024-09-20 | 贝尔肯霍夫有限公司 | Brush comprising a carrier made of bamboo material and wire for forming staples of such a brush |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004081286A (en) | 2002-08-23 | 2004-03-18 | Lion Corp | Toothbrush |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2145480C1 (en) * | 1995-06-12 | 2000-02-20 | Энкор Эдвенст Продактс, Инк. | Brush with improved bristle fastener, many-sided anchoring wire for manufacture of clips for fastening bristle bundles in brush holes, and method for reliable fastening of bristles to brushes |
US5850660A (en) * | 1996-01-25 | 1998-12-22 | Radius Inc. | Toothbrush with hexagonal bristles in hexagonal tuft holes |
US6352313B1 (en) * | 1999-08-25 | 2002-03-05 | Gillette Canada Company' | Brush tufting |
CN2933129Y (en) * | 2006-08-02 | 2007-08-15 | 张诗年 | Novel toothbrush flat-silk piece |
-
2009
- 2009-07-01 RU RU2012103333/12A patent/RU2472404C1/en not_active IP Right Cessation
- 2009-07-01 CN CN200980160310.7A patent/CN102469871B/en not_active Expired - Fee Related
- 2009-07-01 WO PCT/US2009/049432 patent/WO2011002460A1/en active Application Filing
- 2009-07-01 MX MX2011012446A patent/MX2011012446A/en active IP Right Grant
- 2009-07-01 CA CA2764966A patent/CA2764966C/en not_active Expired - Fee Related
- 2009-07-01 KR KR1020127002823A patent/KR101402438B1/en not_active IP Right Cessation
- 2009-07-01 AU AU2009348907A patent/AU2009348907B2/en not_active Ceased
- 2009-07-01 EP EP09790029.4A patent/EP2448446B1/en not_active Not-in-force
-
2013
- 2013-12-09 PH PH12013502553A patent/PH12013502553A1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004081286A (en) | 2002-08-23 | 2004-03-18 | Lion Corp | Toothbrush |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9119462B2 (en) | 2011-07-23 | 2015-09-01 | Braun Gmbh | Oral cleaning implement having a plastic staple comprising a cavity |
WO2021087647A1 (en) | 2019-11-04 | 2021-05-14 | Colgate-Palmolive Company | Oral care implement |
EP4017315A4 (en) * | 2019-11-04 | 2023-05-10 | Colgate-Palmolive Company | Oral care implement |
Also Published As
Publication number | Publication date |
---|---|
PH12013502553B1 (en) | 2015-04-13 |
RU2472404C1 (en) | 2013-01-20 |
CA2764966A1 (en) | 2011-01-06 |
CN102469871B (en) | 2016-01-20 |
PH12013502553A1 (en) | 2015-04-13 |
MX2011012446A (en) | 2011-12-16 |
CA2764966C (en) | 2014-09-30 |
KR20120031094A (en) | 2012-03-29 |
EP2448446B1 (en) | 2016-01-27 |
AU2009348907B2 (en) | 2013-05-16 |
CN102469871A (en) | 2012-05-23 |
EP2448446A1 (en) | 2012-05-09 |
AU2009348907A1 (en) | 2011-12-08 |
KR101402438B1 (en) | 2014-06-03 |
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