US PATENT SUBCLASS 29 / 890.038
.~.~ Tube joined to flat sheet longitudinally, i.e., tube sheet


Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
890.03  DF  .~ Heat exchanger or boiler making {15}
890.038.~.~ Tube joined to flat sheet longitudinally, i.e., tube sheet


DEFINITION

Classification: 29/890.038

Tube joined to flat sheet longitudinally, i.e., tube sheet:

(under subclass 890.03) Process wherein the heat exchanger or boiler made comprises a broad generally flat member attached to an elongated hollow generally cylindrical structure which passageways constitute substantially all of the heat exchanger or boiler passageways.

(1) Note. Tube plate structure is quite different and distinct from tube sheet structure. A tube plate has traverse passageways therethrough and generally serves as end joint structure for a heat exchanger made up of a large plurality of associated tubes.