US2017273426A1PendingUtilityA1

Attachment for a handheld appliance

Assignee: DYSON TECHNOLOGY LTDPriority: Mar 24, 2016Filed: Mar 24, 2017Published: Sep 28, 2017
Est. expiryMar 24, 2036(~9.7 yrs left)· nominal 20-yr term from priority
A45D 20/122F24H 3/0423A45D 20/12F24H 9/0063
53
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Claims

Abstract

An attachment including an air inlet for receiving airflow from a hair styling apparatus, an air outlet, a duct for conveying air from the air inlet to the air outlet, wherein the air inlet is located at one end of the duct, and the air outlet extends along the length of the duct and the cross-sectional area of the duct decreases in size from the air inlet along the length of the air outlet.

Claims

exact text as granted — not AI-modified
1 . An attachment for a hair styling apparatus comprising:
 an air inlet for receiving airflow from a hair styling apparatus;   an air outlet;   a duct for conveying air from the air inlet to the air outlet;   wherein the air inlet is located at one end of the duct, and the air outlet extends along the length of the duct; and   the cross-sectional area of the duct decreases in size from the air inlet along the length of the air outlet.   
     
     
         2 . The attachment of  claim 1 , wherein a cool wall surrounds the duct between the air inlet and the air outlet. 
     
     
         3 . The attachment of  claim 1 , wherein a spacing is maintained between the duct and the cool wall. 
     
     
         4 . The attachment of  claim 3 , wherein the spacing between the air outlet of the duct and a top opening of the coolwall is substantially constant. 
     
     
         5 . The attachment of  claim 3 , wherein the spacing has a dimension which is in the range of 1.5 to 5.5 mm. 
     
     
         6 . The attachment of  claim 1 , comprising at least one rib extending between the duct and the cool wall. 
     
     
         7 . The attachment of  claim 1 , wherein the air inlet is circular and the air outlet is an elongate rectangular shape. 
     
     
         8 . The attachment of  claim 2 , wherein the air outlet of the duct protrudes beyond the end of the cool wall. 
     
     
         9 . The attachment of  claim 1 , comprising a contoured duct wall extending between the air inlet and the air outlet.

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