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4316434 |
Method and apparatus for improving heat transfer
Method and apparatus for improving convective heat transfer by mechanically stirring fluid over the outer surface of a heat exchanger. A stirring mechanism is described which revolves rapidly...
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4266513 |
Flue heat exchanger
A flue heat exchanger particularly adapted for use in a water heater tank comprising a plurality of segments of a metallic or non-metallic non-friable refractory material randomly packed within a...
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4263878 |
Boiler
A boiler for heating liquid which combines a source of hot gases directed first along the inner wall of an annular tank in a tortuous path formed by fins disposed upon the inner wall and then along...
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4157706 |
Water heater
A water heater capable of utilizing as one of its heat sources hot exhaust gases emitted from at least one other heat source such as a furnace fueled by a natural resource fuel such as gas or oil,...
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4044796 |
Turbulator
A turbulator formed of a strip of metal into a series of alternating deflection panels successively joined together by bridging sections with the deflection panels along the length of the strip...
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3065745 |
Heating device for small caloric requirements
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0989881 |
Title is not available
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