Patent ID: 7931019
Filing Date: 2011-04-26
Classification: F04B,F24D,F24H,F24S,F28D,F28F,Y02B,Y02E,Y02P,Y10T

Abstract:
1. A self-powered pump for heated liquid, comprising: an airtight container for containing the heated liquid, said airtight container having a base and a top; a heated liquid inlet pipe extending upwardly into said airtight container such that a first end of said heated liquid inlet pipe is within the airtight container; a heated liquid outlet pipe extended out from said airtight container, wherein a second end of said heated liquid outlet pipe is within said airtight container and lower than said first end of said heated liquid inlet pipe; a breathing pipe extending upwardly into said airtight container such that an upper end of said breathing pipe is within the airtight container and is higher than both of said first end of said inlet pipe and said second end of said outlet pipe but lower than an interior side of said top of said airtight container, an opposite end of said breathing pipe being outside said airtight container and lower than said base; and an open container open to the atmosphere for receiving said opposite end of said breathing pipe wherein said breathing pipe allows bi-directional fluid flow between said airtight container and said open container when said heated liquid overflows from said airtight container to said open container.