Patent ID: 6786135
Filing Date: 2004-09-07
Classification: A47J

Abstract:
A steam structure for an electric coffee maker comprising a throttle valve, a steam pipe, an enclosing valve, a valve seat, and a backflow pipe, wherein said steam pipe being connected to one side of said throttle valve, and characterized by:said throttle valve comprising a connecting pipe with a bottom of said connecting pipe being connected to said valve seat, said valve seat being connected to said backflow pipe, said valve seat having a hallow body interconnected with said connecting pipe of said throttle valve and said backflow pipe, said enclosing valve being placed in said valve seat, said enclosing valve being made of flexible material and comprising a valve, a thin film surrounding said valve, and a skirt with holes thereon, an outer edge of said skirt engaging with said valve seat, said valve having an outer diameter corresponding to an inner diameter of said backflow pipe, thus, said valve being pushed by said thin film to stay away from said backflow pipe in an idle status, and said holes of said skirt being interconnected with said backflow pipe, upon receiving steam pressure, said valve pushing down said thin film, thus said valve sealing said backflow pipe.