Patent ID: 7493728

Claim:
A descent gutter ( 20 ) intended to allow the canalization of rain water toward a reservoir to be used subsequently, said descent gutter comprising an outside shell; an upper part ( 26 ) thereof being installed at a gutter exit ( 23 ) and a descent exit ( 38 ) at a lower extremity thereof, said gutter descent comprising in addition an internal canalization constituted of a funnel ( 48 ) channelling said rain water at the top of said outside shell, an internal pipe ( 37 ) with two extremities within said descent gutter, a first extremity thereof set to collect said water from said funnel, an aperture ( 50 ) made in a straight pipe ( 49 ) connected to said funnel ( 48 ), a lower part ( 28 ) of said outside shell joining said upper part ( 26 ) and a valve ( 40 ) located on said lower part ( 28 ) to control the water flow outwardly of said internal pipe; said at least one aperture ( 50 ) positioned such as when it rains the water is conveyed from a roof by said gutter exit toward said descent gutter, sliding down said funnel through said straight pipe ( 49 ) then in said internal pipe ( 37 ), an exit therefrom evacuating water when said valve is open, wherein water is filling said internal pipe ( 37 ) when said valve is closed, until overflowing said aperture ( 50 ), to flow between said internal pipe ( 37 ) and said outside shell ( 28 ), then being evacuated from said descent gutter toward the bottom descent exit ( 38 ).