Patent ID: 8979432
Filing Date: 2015-03-17
Classification: E03F,Y10T

Abstract:
1. A vortex flow type water surface control device for a draining device that includes an inflow pipe, an outflow pipe, an intercepting pipe, and a separating weir that is disposed to block said intercepting pipe and said inflow pipe from said outflow pipe, comprising a control plate that is disposed between an opening of said inflow pipe and an opening of said intercepting pipe, the height of the control plate being higher than at least the height of said separating weir, wherein said control plate is apart from said separating weir, wherein the separating weir is not located behind said control plate, but is located at a side of said control plate, when said separating weir is viewed from the opening of said inflow pipe, and wherein said control plate is located closer to the opening of the intercepting pipe than the opening of the inflow pipe.