초록 ▼

An appliance for preparation of heated and stirred beverages and foods has a vessel and a base, with a mixing element rotationally driven within the vessel by magnetic coupling with a driving magnet array attached to an electric motor and covered by a cap. The mixing element is mounted on a rolling

An appliance for preparation of heated and stirred beverages and foods has a vessel and a base, with a mixing element rotationally driven within the vessel by magnetic coupling with a driving magnet array attached to an electric motor and covered by a cap. The mixing element is mounted on a rolling contact bearing assembly which fits upon a pin which extends from the cap through an opening in the vessel bottom. The vessel bottom is preferably a cast metal piece with internal cavities in which one or more heating elements are mounted whereby a liquid in the vessel is simultaneously heated and stirred or whipped. Electrical power to a mixing motor and heating elements is controlled either by a manually resettable thermostat, or by a self-latching relay controlled switching circuit which includes a blocking diode to supply rectified AC current to the motor for low torque start ups which will not decouple the magnetic flux drive of the mixing element.

대표청구항 ▼

[ What is claimed is:] [1.]1. A device for preparing heated and mixed beverage, the device comprising:a base underneath a vessel adapted to receive a quantity of liquid to be prepared as a heated beverage,a vessel bottom supported by the base and having a central opening in the vessel bottom,a motor

[ What is claimed is:] [1.]1. A device for preparing heated and mixed beverage, the device comprising:a base underneath a vessel adapted to receive a quantity of liquid to be prepared as a heated beverage,a vessel bottom supported by the base and having a central opening in the vessel bottom,a motor connected to a shaft, the motor supported by the base to orient the shaft generally orthogonal to the opening in the vessel bottom, the motor shaft supporting a driving magnet array and operative to rotate the driving magnet array, a cap over the driving magnet array, the cap having a cap pin in general alignment with the motor shaft,a mixing element attached to a driven magnet array and mounted for rotation upon the cap pin, rotation of the mixing element upon the cap pin induced by magnetic coupling with rotation of the driving magnet array.