US2007277447A1PendingUtilityA1

Interface portion for a siphonic system

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Assignee: SOMMERHEIN PERPriority: May 31, 2006Filed: May 30, 2007Published: Dec 6, 2007
Est. expiryMay 31, 2026(expired)· nominal 20-yr term from priority
Inventors:Per Sommerhein
E04D 13/0409E04D 2013/0427E04D 2013/0436
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Claims

Abstract

An interface portion ( 1 ), for a siphonic system ( 6 ) which siphonic system ( 6 ) has an upstream portion ( 2 ) and a downstream portion ( 3 ), the interface portion ( 1 ) having an inlet end ( 10 ), to be in connection with the upstream portion ( 2 ), a discharge end ( 11 ), to be in connection with the downstream portion ( 3 ), the interface portion ( 1 ) being arranged to bring, in use, the upstream portion ( 2 ) in liquid connection with the downstream portion ( 3 ). The interface portion is distinguished by the inner cross section area of the interface portion ( 1 ) increasing continuously from the inlet end ( 10 ) to the discharge end ( 11 ) for a length (L) of the interface portion ( 1 ) that is at least 0.3 times the inner diameter (D) of the discharge end ( 11 ), so that the interface portion counteracts an accumulation of a gas downstream of the upstream portion ( 2 ), to facilitate priming of the system.

Claims

exact text as granted — not AI-modified
1 . An interface portion ( 1 ), for a siphonic system ( 6 ) which siphonic system ( 6 ) has an upstream portion ( 2 ) and a downstream portion ( 3 ), the interface portion ( 1 ) having an inlet end ( 10 ), to be in connection with the upstream portion ( 2 ), a discharge end ( 11 ), to be in connection with the downstream portion ( 3 ), the interface portion ( 1 ) being arranged to bring, in use, the upstream portion ( 2 ) in liquid connection with the downstream portion ( 3 ), characterised in that the inner cross section area of the interface portion ( 1 ) increases continuously from the inlet end ( 10 ) to the discharge end ( 11 ) for a length (L) of the interface portion ( 1 ) that is at least 0.3 times the inner diameter (D) of the discharge end ( 11 ), so that the interface portion counteracts an accumulation of a gas downstream of the upstream portion ( 2 ), to facilitate priming of the system. 
     
     
         2 . An interface portion ( 1 ) according to  claim 1 , characterised in that a transition between the inlet end ( 10 ) and the upstream portion ( 2 ) is essentially in the form of, a curve with a radius of at least 0.15 times the inner diameter of the discharge end ( 11 ). 
     
     
         3 . An interface portion ( 1 ) according to  claim 1 , characterised in that a transition between the discharge end ( 11 ) and the downstream portion ( 3 ) is essentially in the form of a curve with a radius of at least 0.15 times the inner diameter of the discharge end ( 11 ). 
     
     
         4 . An interface portion ( 1 ) according to  claim 1 , characterised in that the interface portion is contained in a roof outlet ( 4 ) of a siphonic drainage system. 
     
     
         5 . An interface portion ( 1 ) according to  claim 1 , characterised in that the interface portion is contained in a sleeve insert for a pipe. 
     
     
         6 . An interface portion ( 1 ) according to  claim 1 , characterised in that the interface portion is contained in a pipe. 
     
     
         7 . An interface portion ( 1 ) according to  claim 1 , characterised in that the interface portion is contained in a connector. 
     
     
         8 . An interface portion ( 1 ) according to  claim 5 , characterized in that the inlet end ( 10 ) is adapted to be connected to the upstream portion ( 2 ) by connective threads. 
     
     
         9 . An interface portion ( 1 ) according to  claim 5 , characterised in that the inlet end ( 10 ) is adapted to be connected to the upstream portion ( 2 ) by a connective flange ( 8 ). 
     
     
         10 . An interface portion ( 1 ) according to  claim 5 , characterised in that the inlet end ( 10 ) is adapted to be connected to an upstream portion ( 2 ) being part of a roof outlet ( 4 ) of a siphonic drainage system. 
     
     
         11 . An interface portion ( 1 ) according to  claim 10 , characterised in that the inlet end ( 10 ) is adapted to be connected to an outlet spigot ( 13 ) of the roof outlet ( 4 ). 
     
     
         12 . An interface portion ( 1 ) according to  claim 10 , characterised in that the inlet end ( 10 ) is adapted to be connected to an outlet bottom ( 9 ) of the roof outlet ( 4 ). 
     
     
         13 . An interface portion ( 1 ) according to  claim 12 , characterised in that the inlet end ( 10 ) is adapted to be connected to the outside of the outlet bottom ( 9 ) of the roof outlet ( 4 ). 
     
     
         14 . An interface portion ( 1 ) according to  claim 12 , characterised in that the inlet end ( 10 ) is adapted to be connected to the inside of the outlet bottom ( 9 ) of the roof outlet ( 4 ). 
     
     
         15 . An interface portion ( 1 ) according to  claim 1 , characterised in that the discharge end ( 11 ) is adapted to be connected to a downstream portion ( 3 ) being part of a tailpipe of a siphonic drainage system. 
     
     
         16 . An interface portion ( 1 ) according to  claim 1 , characterised in that the length (L) of the interface portion ( 1 ) is between 0.3 and 0.5 times the inner diameter (D) of the discharge end ( 11 ). 
     
     
         17 . An interface portion ( 1 ) according to  claim 1 , characterised in that the length (L) of the interface portion ( 1 ) is at least 0.5 times the inner diameter (D) of the discharge end ( 11 ).

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