Electric resistance heating devices – Heating devices – Continuous flow type fluid heater
Reexamination Certificate
2006-10-31
2008-12-02
Campbell, Thor S (Department: 3742)
Electric resistance heating devices
Heating devices
Continuous flow type fluid heater
C392S441000, C392S465000
Reexamination Certificate
active
07460769
ABSTRACT:
Modular water heating systems include a self-standing rack on which one or two separate tankless water heaters and a separate water storage tank are mounted. A pump recirculates the water between the storage tank and the water heater or heaters to maintain a drawdown supply of hot water. The various water lines between the tankless water heater or heaters, storage tank and water circulation pump may include isolation valves, quick connectors and flexible lines for easy replacement of any of the component parts as needed.
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patent: 6389226 (2002-05-01), Neale et al.
patent: 2005/0121540 (2005-06-01), Torigoe
Campbell Thor S
Renner , Otto, Boisselle & Sklar, LLP
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