Liquid heaters and vaporizers – Water tube – D-type tube
Reexamination Certificate
2006-09-22
2008-08-19
Wilson, Gregory A (Department: 3749)
Liquid heaters and vaporizers
Water tube
D-type tube
C122S265000, C122S235110
Reexamination Certificate
active
07412946
ABSTRACT:
A steam generator for generation of steam in a water tube boiler having first and second upright headers in sealed communication with lower and upper inclining banks of tubes communicating therebetween. An end portion of the tubes in the upper bank, changes to a declining angle toward its communication with the upright header. The declining angle provides for increased separation of steam from hot water in the tubes.
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Harms Donn K.
Wilson Gregory A
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