US2021289909A1PendingUtilityA1

Attachment for a handheld appliance

Assignee: DYSON TECHNOLOGY LTDPriority: Aug 1, 2018Filed: Jun 13, 2019Published: Sep 23, 2021
Est. expiryAug 1, 2038(~12 yrs left)· nominal 20-yr term from priority
A45D 20/12A45D 20/122A45D 2/002A45D 20/50
58
PatentIndex Score
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Claims

Abstract

An attachment for a hair styling apparatus, wherein the attachment includes an air inlet for receiving airflow from the hair styling apparatus, an elongate slot-shaped air outlet, a duct for conveying air from the air inlet to the air outlet, a series of triangular comb teeth mounted orthogonally across the air outlet, each tooth having a first end located substantially at the air outlet and a second end disposed beyond the air outlet in a downstream direction.

Claims

exact text as granted — not AI-modified
1 . An attachment for a hair styling apparatus, the attachment comprising:
 an air inlet for receiving airflow from the hair styling apparatus;   an elongate slot-shaped air outlet;   a duct for conveying air from the air inlet to the air outlet;   a series of comb teeth mounted across the air outlet, each tooth having a first end located at the air outlet and a second end disposed beyond the air outlet in a downstream direction; wherein at least one tooth comprises a planar, triangular form, oriented orthogonally to the length of the air outlet.   
     
     
         2 . The attachment of  claim 1 , wherein the first end of the at least one tooth has a semi-circular profile. 
     
     
         3 . The attachment of  claim 2 , wherein the second end of the at least one tooth forms an apex. 
     
     
         4 . The attachment of  claim 3 , wherein the apex comprises a rod form. 
     
     
         5 . The attachment of  claim 4 , wherein the apex further comprises a spherical form at a terminal end of the tooth. 
     
     
         6 . The attachment of  claim 1 , wherein each tooth has a width in the range of 0.5 mm to 2 mm. 
     
     
         7 . The attachment of  claim 1 , wherein each tooth in the series of comb teeth is regularly spaced. 
     
     
         8 . The attachment of  claim 1 , wherein each tooth in the series of comb teeth is spaced from adjacent teeth by a distance in the range of 2 mm to 8 mm. 
     
     
         9 . The attachment of  claim 1 , wherein the first end of the outermost teeth in the series of comb teeth are angled towards a longitudinal axis of the attachment. 
     
     
         10 . The attachment of  claim 1 , wherein the second end of the outermost teeth in the series of comb teeth are angled towards a longitudinal axis of the attachment. 
     
     
         11 . The attachment of  claim 1 , wherein the series of comb teeth is formed of a flexing material. 
     
     
         12 . The attachment of  claim 1 , further comprising a series of vanes within the duct oriented substantially orthogonally to the length of the air outlet, and a downstream end of at least one vane of the series of vanes comprises an inverted semi-circular profile adapted to fit around the first end of an aligned tooth. 
     
     
         13 . The attachment of  claim 12 , wherein the first end of the aligned tooth is freely moveable within the inverted semi-circular profile of the at least one vane.

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