Method and device for reducing the risk of freezing of...

Details Method and device for reducing the risk of freezing of... Method and device for reducing the risk of freezing of...

F - Mech Eng,Light,Heat,Weapons

17

D

137/147, 285/3

F17D 1/05 (2006.01) E03F 5/04 (2006.01) E04D 13/04 (2006.01)

Patent

CA 1206394

Abstract A method for reducing the risk of freezing of surface-water pipe-line systems of the kind comprising a plurality of drains and other inlets, such as rain-water drains, manholes and inlets from terrace and roof gutter- ing, etc. Means are provided which prevent or reduce air currents in at least one of the drains and other inlets through which the flow of air would otherwise be excess- ive. The means is designed to permit water to flow there- through without appreciable gathering of water therein.

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