Heating systems – Heated floor
Reexamination Certificate
2006-05-23
2006-05-23
Boles, Derek S. (Department: 3749)
Heating systems
Heated floor
C165S171000, C165S056000
Reexamination Certificate
active
07048200
ABSTRACT:
An integrated injection-pumping fixture for transferring heat from a higher-temperature loop to a lower-temperature loop (e.g., in radiant heating, from a boiler loop to a radiant loop). The fixture provides an injection loop for transferring heat from the higher-temperature loop to the lower-temperature loop. The fixture comprises an integrated casting, in which are formed higher-temperature supply and return ports, lower-temperature supply and return ports, an injection pump volute, and a lower-temperature pump volute. Liquid from the higher-temperature loop enters the integrated casting through the higher-temperature supply port, mixes with liquid circulating in the lower-temperature loop, and leaves the integrated casting through the higher-temperature return port. Liquid circulating in the lower-temperature loop enters the integrated casting through the lower-temperature return port, mixes with liquid entering from the higher-temperature loop, and leaves the integrated casting through the lower-temperature supply port. The invention simplifies installation by integrating into one integrated casting all four ports and both the injection pump and lower-temperature loop pump.
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Siegenthaler, Modern Hydronic Heating for Residential and Light Commercial Buildings, p. 334 (1995).
Boles Derek S.
Taco Inc.
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