Electric resistance heating devices – Heating devices – Tank or container type liquid heater
Reexamination Certificate
2005-10-18
2005-10-18
Campbell, Thor S. (Department: 3742)
Electric resistance heating devices
Heating devices
Tank or container type liquid heater
C392S454000, C392S455000, C165S104190
Reexamination Certificate
active
06957014
ABSTRACT:
A liquid heater comprising a plurality of storage compartments for containing liquid to be heated. The storage compartments being connected together in series and comprising at least a first end compartment for receiving liquid to be heated and a second end compartment from which heated liquid can be drawn. A heating means is provided in each compartment for heating the liquid contained therein. A first flow control means is operable to allow liquid in one compartment to flow into the next compartment in a flow direction towards the first end compartment when liquid contained in said one compartment reaches a predetermined temperature. A second flow control means is operable to allow liquid flow from one compartment to the next compartment in a flow direction towards the second end compartment while preventing reverse flow.
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International Search Report based on PCT/AU02/01755 dated Dec. 24, 2001.
Campbell Thor S.
Dykeman David J.
Palmer & Dodge LLP
Williams Kathleen M.
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