Automatic electric household appliance for making cheese and by-products thereof
AssigneePhilips Corporation
InventorsCesare Negri, Giorgio Bonini, Giorgio Libe'
Life of this patent
Estimating the term…
Abstract
The appliance comprises a housing seat for a milk container removable from said seat, a system of electrical heating resistances associated with said seat near the container, an agitator inserted in a removable manner from the container and an electric motor for driving the agitator. Thermostat means with two temperatures associated with an electrical control circuit act on the system of resistances and on the electric motor to consent automatic performance of an appropriate operation sequence for production of cheese and by-products thereof.
Claims11
An automatic electric household appliance for making cheese and by-products thereof, comprising a housing seat, a milk container which is removable from said seat, electric heating resistance means associated with said seat near said container, an agitator removably inserted in said container, an electric drive motor for said agitator and an electric control circuit including power supply means for said heating rsistance and said drive motor, two-temperature thermostat means responsive to a lower preselected temperature corresponding to the curdling temperature of milk in the container to stop electrical power supply to the heating resistance, first timing means activated by said thermostat means at said lower temperature to stop electrical power supply to the drive motor at the end of a shorter preselected time adequate for introduction of a coagulant in the milk, second timing means activated by said thermostat means at said lower temperature to restart electrical power supply to the heating resistance and the drive motor and to make the thermostat means responsive to a higher preselected temperature adequate for breaking the curd and converting the same into cheese and surrounding liquid at the end of a longer preselected time, said thermostat means being responsive to said higher temperature to stop electrical power supply to the heating resistances and the drive motor, means for allowing removal of the container from its seat and physical separation of the cheese from the liquid by draining.
Dependencies are inferred from the claim text.