Comb

Patent metadata

Field	Value
Publication number	US-2025089873-A1
Application number	US-202218726668-A
Country	US
Kind code	A1
Filing date	Dec 13, 2022
Priority date	Jan 7, 2022
Publication date	Mar 20, 2025
Grant date	—

Abstract

A comb that includes a support and a row of teeth mounted to the support as to be spaced along a longitudinal axis, and each tooth projecting from a proximal end at which it is mounted to the support to a distal free end. The comb further includes at least one pair of neighbouring teeth that at least partly overlap along the longitudinal axis such that the space therebetween defines a transversely extending non-linear path along which hair passing between the pair of teeth extends in use.

First claim

1 . A comb comprising:
a support; and a row of teeth mounted to the support so as to be spaced along a longitudinal axis, each tooth projecting from a proximal end at which it is mounted to the support to a distal free end; wherein at least one pair of neighbouring teeth at least partly overlap along the longitudinal axis such that a space therebetween defines a transversely extending non-linear path along which hair passing between the pair of teeth extends in use.

2 . The comb according to claim 1 , wherein the distal free end of the row of teeth are spaced apart and the distance between at least one pair of neighbouring teeth decreases towards the proximal end so they at least partly overlap along the longitudinal axis.

3 . (canceled)

4 . The comb according to claim 1 , wherein the non-linear path is a first path and wherein the space between the at least one pair of neighbouring teeth further defines a second transversely extending path along which hair passing between the pair of teeth extends in use, the second path being less tortuous than the first path.

5 . The comb according to claim 4 , wherein a distance between the first path and the proximal ends of the at least one pair of neighbouring teeth is less than a distance between the second path and the proximal ends of the at least one pair of neighbouring teeth.

6 . The comb according to claim 5 , wherein the tortuosity, taken in a transverse direction, of the space between the at least one pair of neighbouring teeth decreases gradually in a direction from the first path to the second path.

7 . (canceled)

8 . The comb according to claim 4 , 7 wherein each of the first and second paths comprises a width defined by the spacing between the at least one pair of neighbouring teeth, and wherein the width of the first path is smaller than the width of the second path.

9 . The comb according to claim 1 , wherein the at least one pair of neighbouring teeth includes a first tooth and a second tooth, and wherein a portion of the first tooth is nested within a portion of the second tooth so as to define the non-linear path therebetween.

10 . The comb according to claim 9 , wherein the first tooth comprises a protrusion extending at least partly along the length of the first tooth and the second tooth comprises a recess extending at least partly along the length of the second tooth, and wherein the protrusion is at least partially received in the recess.

11 . The comb according to claim 10 , wherein the height of the protrusion from a body of the first tooth is greater at a proximal end of protrusion than at a distal end of the protrusion.

12 . The comb according to claim 1 , wherein each tooth comprises first and second transversely spaced legs, each leg comprising a proximal portion that is proximate the support and a distal portion that is distal from the support; and wherein:
the distal portions of the first and second legs are joined; the proximal portion of the first leg is spaced from the distal portion of the first leg in a first direction along the longitudinal axis; and the proximal portion of the second leg is spaced from the distal portion of the second leg in a second direction along the longitudinal axis that is opposite to the first direction.

13 . The comb according to claim 12 , wherein the teeth are arranged such that the proximal portion of the first leg of each tooth is transversely aligned with the proximal portion of the second leg of a neighbouring tooth.

14 . The comb according to claim 12 , wherein the first and second legs of each tooth form part of an outer member of the tooth, and each tooth further comprises an inner member surrounded by the outer member, the inner member comprising third and fourth transversely spaced legs disposed between the first and second legs, each of the third and fourth legs comprising a proximal portion that is proximate the support and a distal portion that is distal from the support, and wherein
the distal portions of the third and fourth legs are joined; the proximal portion of the third leg is spaced from the distal portion of the third leg in the second direction along the longitudinal axis; and the proximal portion of the fourth leg is spaced from the distal portion of the fourth leg in the first direction along the longitudinal axis.

15 . The comb according to claim 14 , wherein the third leg is adjacent the first leg and the fourth leg is adjacent the second leg.

16 . The comb according to claim 14 , wherein the teeth are arranged such that the proximal portions of the first and fourth legs of each tooth interdigitate with the proximal portions of the second and third legs of a neighbouring tooth.

17 . (canceled)

18 . (canceled)

19 . The comb according to claim 1 , wherein the non-linear path is non-symmetrical about the longitudinal axis.

20 . The comb according to claim 1 , wherein each tooth is curved in a direction along its length.

21 . The comb according to claim 1 , wherein each tooth has a width extending transversely to the longitudinal axis, and wherein the proximal end of each tooth is wider than the distal end.

22 . (canceled)

23 . The comb according to claim 1 , wherein the spacing between teeth is adjustable.

24 . A comb attachment for mounting at an outlet of a hair appliance for supplying air, the comb attachment comprising:
a housing defining an airflow inlet for receiving air from the appliance and an airflow outlet in fluid communication with the inlet for discharging air received from the appliance; and a comb according to claim 1 , the comb being arranged such that the longitudinal axis along which the teeth are spaced extends across the outlet, and wherein the proximal end of each tooth is proximate the outlet, and the distal end of each tooth is distal from the outlet.

25 . The comb attachment according to claim 24 , wherein each tooth has a leading edge that leads in movement along a tress of hair in use and a trailing edge that trails in movement along a tress in use, and wherein the leading edge of each tooth is sloped with respect to a direction of the airflow discharged from the outlet.

Assignees

• Dyson Technology Ltd

Inventors

• Beaumont Rory William

Classifications

• A45D20/50 Primary

  and provision for an air stream · CPC title

• A45D20/12 Primary

  Details thereof or accessories therefor, e.g. nozzles, stands · CPC title