HAIR BRUSH

• US 20180228277A1
• Filed: 06/30/2015
• Published: 08/16/2018
• Est. Priority Date: 06/30/2014
• Status: Active Grant

• Current Assignee: Tangle Teezer Ltd.
• Original Assignee: Tangle Teezer Ltd.
• Inventors: PULFREY, Shaun, TREEBY, Cameron Bruce William
• Granted Patent: US 11,793,298 B2
• Time in Patent Office: Days
• CPC Class Codes: A46B 2200/104 Hair brush
• CPC Class Codes: A46B 9/023 arranged like in hair brushes, e.g. hair treatment, dyeing, streaking
• CPC Class Codes: A46D 1/0238 Bristles with non-round cross-section

Abstract

A hair brush with an array of bristles (4). Each bristle extends from a base to a free end. Some or all of the bristles have relatively wide first portion, towards the base of the bristle, and a relatively narrow second portion, towards the free end of the bristle. The bristles are arranged in offset rows and centre lines of the rows are spaced apart such that at least part of the first portion of bristles in one row extends between adjacent bristles in an adjacent row and/or, when viewed perpendicular to the rows, the width of the first portion of the bristles in one row is, over part of their length, the same or greater than the space between adjacent bristles in an adjacent row so as to partially occlude the space between bristles in an adjacent row. The bristles are sized and arranged so that the first portion of the bristles serves to easily penetrate and divide hair between the bristles and the second portion of the bristles enables tension to be applied to the hair when hair flows between the bristles.

Claims

1. A hair brush for styling hair, the brush comprising:

an array of bristles each extending from a base to a free end;

at least some or all of the bristles comprising a first, relatively wide, portion which tapers from the base and a second, relatively narrow, portion which extends from the first portion to the free end;

the bristles being arranged in two or more spaced apart, offset, rows wherein centre lines of the rows are spaced apart such that at least part of the first portion of bristles in one row extends between adjacent bristles in an adjacent row; and

/or,

when viewed perpendicular to the rows, the width of the first portion of the bristles in one row is, over part of their length, the same or greater than the space between adjacent bristles in an adjacent row so as to partially occlude the space between bristles in an adjacent row; and

the bristles are sized and arranged so that, in use, the second portion serves to penetrate and divide hair between the bristles and the second-first portion of the bristles enables tension to be applied to the hair when hair flows between the bristles.

4. The hair brush as claimed in claim 1 wherein, when viewed in the same direction, the width of the widest part of the first portion of the bristles comprising first and second portions is at least twice, or three times, the width of the bristle in the second portion at or near to its free end.

6. The hair brush as claimed in claim 1 wherein the length of the bristles having first and second portions is no greater than nine times its maximum width.

8. The hair brush as claimed in claim 1 wherein two opposed edges of the first portion of those bristles having first and second portions taper towards each other with a minimum average angle of at least 10 degrees between the opposed edges over the length of the first portion, and opposite edges of the second portion taper towards each other with a maximum average angle of 5 degrees between opposed edges over the length of the second portion.

10. The hair brush as claimed in claim 8 wherein the angle between the opposed edges of the first portion increases from the base of the bristle to the end of the first portion.

11. The hair brush as claimed in claim 10 wherein the opposed edges of the first portion are curved.

14. The hair brush as claimed in claim 1 wherein the first portion of the bristles has a non-circular transverse cross-section over at least part of its length.

15. The hair brush as claimed in claim 14 wherein the transverse cross sectional shape of the first portion of the bristles is elongate over at least part of its length.

16. The hair brush as claimed in claim 15 wherein the first portion of the bristles has a substantially oval transverse cross-section over at least part of its length.

17. The hair brush as claimed in claim 16 wherein edges of the first portion lying on a long axis of its oval cross-section approach each other in a curved path over the length of the first portion and edges of the first portion lying on a short axis of its oval cross section approach each other in a substantially straight path over the length of the first portion.

18. The hair brush as claimed in claim 17 wherein the first portion of the bristles has a non-circular transverse cross-section at its base which gradually transitions to a substantially circular cross-section at which it meets the second portion.

22. The hair brush as claimed in claim 1 wherein the length of the second portion is no greater than the length of, or twice the length of, the first portion.

37. The hair brush as claimed in claim 16 wherein bristles with a substantially oval cross-section form an elongate rectangular array of bristles formed from generally parallel long rows and generally parallel short rows of bristles.

38. The hair brush as claimed in claim 37 wherein a long axis of the oval cross-section of each bristle is substantially aligned with the direction of the long row of which it forms a part.

2. (canceled)

3. (canceled)

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7. (canceled)

9. (canceled)

12. (canceled)

13. (canceled)

19. (canceled)

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21. (canceled)

23. A hair brush comprising;

an array of bristles, at least some or all of the bristles having a transverse cross-section with an elongate shape over some or substantially all of their length and arranged in two or more spaced apart, offset, rows wherein centre lines of the rows are spaced apart such that at least part of the first portion of bristles in one row extends between adjacent bristles in an adjacent row; and

/or,

when viewed perpendicular to the rows, the width of the bristles in one row is, over part of their length, the same or greater than the space between adjacent bristles in an adjacent row so as to partially occlude the space between bristles in an adjacent row.

24. The hair brush as claimed in claim 23 wherein the elongate shape of the transverse cross-section of the bristles is substantially oval.

26. The hair brush as claimed in claim 23 wherein bases of adjacent bristles in each row are spaced apart by a distance which is less than half the maximum width of the base of the bristles.

25. (canceled)

27. (canceled)

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32. (canceled)

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34. (canceled)

35. The hair brush as claimed in claim wherein the bristles are tapered, with their cross section reducing from the base to the free end and the degree of taper of the bristles changes abruptly at the interface between the first and second portions of the bristles

36. (canceled)

39. A hair brush comprising:

an array of bristles, at least some or all of the bristles having a transverse cross-section with pan elongate shape over some or substantially all of their length and arranged in two or more spaced apart, offset, rows wherein centre lines of the rows are spaced apart such that at least part of the first portion of bristles in one row extends between adjacent bristles in an adjacent row; and

/or,

when viewed perpendicular to the rows, the width of the bristles in one row is, over part of their length, the same or greater than the space between adjacent bristles in an adjacent row so as to partially occlude the space between bristles in an adjacent row;

wherein the bristles with an elongate shape form an elongate rectangular array of bristles formed from generally parallel long rows and generally parallel short rows of bristles; and

wherein a long axis of the elongate cross-section of each bristle is substantially aligned with the direction of the long row of which it forms a part,

40. The hair brush according to claim 39 wherein the elongate shape of the transverse cross-section of the bristles is substantially oval and wherein a long axis of the oval cross-section of each bristle is substantially aligned with the direction of the long row of which it forms a part.