Overheat prevention device for household bean milk and bean curd makers is disclosed. Such makers include a housing having a cavity to contain water therein, a main body, and a drive motor to rotate a cutting blade on an end of a drive shaft. A heater may be provided which generates heat when electricity...http://www.google.com/patents/US20050057876?utm_source=gb-gplus-sharePatent US20050057876 - Overheat prevention device for household bean milk and bean curd makers