公开(公告)号：US20240244714A1

公开(公告)日：2024-07-18

申请号：US18289483

申请日：2022-04-26

Applicant: Dyson Technology Limited

Inventor： Nathan James CROFT ,  Stephen John WOOLAGHAN ,  Frederick Stuart GROTRIAN ,  Benjamin John BROWN

IPC: H05B1/02 ,  A45D1/04 ,  A45D2/00

CPC classification number: H05B1/0252 ,  A45D1/04 ,  A45D2/001 ,  H05B2203/007 ,  H05B2203/035

Abstract: A heating circuit has at least three series-connected resistance-heating elements, each resistance-heating element being connected between a pair of nodes, each pair of adjacent resistance-heating elements in the series being connected via one of the nodes, each node being connectable to a voltage. Optionally, the heating circuit may have one or more switching elements to allow selective connection of one or more voltages to the resistance heating elements.