Fluid handling – With heating or cooling of the system – Air heated or cooled
Patent
1998-04-01
2000-02-01
Chambers, A. Michael
Fluid handling
With heating or cooling of the system
Air heated or cooled
137334, 137341, 138 33, F16K 4900
Patent
active
060191236
ABSTRACT:
The present invention is an apparatus and kit for preventing freezing in pipes. In its most basic form, the apparatus of the present invention includes three lengths of uninsulated flexible ductwork, each having a pair of connectors attached to each end, and a T-shaped adapter having three openings which are dimensioned to mate with one connector of each length of ductwork. In operation, the first length of ductwork, below the "T", is fitted over the downspout of the system and comes to rest in the system piping pit, the second length of ductwork is attached to a central heating duct and the third length is attached to the water inflow. Thus, when the central heating system is in operation, air is forced down the second duct to the "T" where substantially half of the warm air is directed to the piping pit and the other half is directed along the length of the exposed piping. In this manner, the pipes are heated without the use of expensive insulated ductwork and does not require the use of heat tape as a precauation. It is preferred that the apparatus be sold in kit form for installation by an owner of a mobile home. However, in some embodiments the apparatus may be preassembled or assembled on the job site by a heating professional.
REFERENCES:
patent: 2327910 (1943-08-01), Levine
patent: 4110603 (1978-08-01), Peterson et al.
patent: 4199002 (1980-04-01), Fumagalli
Chambers A. Michael
McShane Thomas L.
Persson Michael J.
Ritchie William B.
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