Pipes and tubular conduits – Thawing and freeze protection
Patent
1998-02-09
1999-11-09
Hook, James F.
Pipes and tubular conduits
Thawing and freeze protection
138 96R, F16L 5300
Patent
active
059795050
ABSTRACT:
A sewer vent deicer for reducing the accumulation of ice within the exhaust portion of the sewer vent pipe during cold weather by increasing the flow of warm sewer gases through the sewer vent pipe. The inventive device includes a cap defining a cavity, a plurality of side apertures within the cap, an upper aperture within the cap, a tube attached to the lower portion of the cap, and an insulating sleeve removably positioned within the tube. The sewer vent pipe is surrounded by the insulating sleeve positioned within the tube thereby maintaining the temperature within the sewer vent. A stream of air enters a side aperture into the cavity which then horizontally passes over the open sewer vent pipe and thereafter exits an opposing side aperture. The air stream passing through the cavity reduces the pressure above the sewer vent pipe thereby causing the warm sewer gases within the sewer vent pipe to rise into the air stream. This increased flow of warm sewer gases maintains a desirable temperature within the lumen of the sewer vent which is not conducive to freezing.
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Hook James F.
Neustel Michael S.
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