Temperature control arrangement for an electrical heating appliance
AssigneePifco Limited
InventorPaul A. P. Wood
Life of this patent
Estimating the term…
Abstract
A temperature control arrangement for an electrical appliance comprises means for the attachment of the arrangement to the appliance and for the connection of the arrangement to an electricity supply whereby the appliance is supplied with electricity via the arrangement. A thermostat arrangement is provided in the arrangement and comprises a switch operable by a heat sensitive actuator. Heat transfer means are also provided whereby when the arrangement is connected to said appliance transfer of heat can take place from the appliance to the actuator so that, in use, on attainment of a predetermined temperature the actuator acts to operate the switch and affect the supply of electricity received by the appliance.
Claims8
A temperature control apparatus for an electrical heating appliance, the heating appliance having an electrical heater therein, comprising:
- means for attaching the temperature control apparatus of said appliance and for connecting the temperature control apparatus to an electricity supply whereby the electrical heater is supplied with electricity via the temperature control apparatus;
- thermostat means comprising a heat sensitive actuator and a switch operable by the heat sensitive actuator, the actuator comprising a shape memory effect actuator adapted to operate at a predetermined temperature, and heat transfer means, whereby when the temperature control apparatus is connected to said appliance, transfer of heat can take place from the appliance to the actuator via the heat transfer means so that, in use, the actuator operates the switch to switchably control the supply of electricity to the electrical heater in accordance with a sensed temperature of the appliance.
Dependencies are inferred from the claim text.