US PATENT SUBCLASS 137 / 576
.~.~ With communicating opening in common walls of tanks or compartments
Current as of:
June, 1999
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137 /
HD
FLUID HANDLING
561 R
DF
SYSTEMS
{32}
571
DF
.~ Plural tanks or compartments connected for serial flow {5}
576
.~.~ With communicating opening in common walls of tanks or compartments
DEFINITION
Classification: 137/576
(under subclass 571) Systems in which the tanks or compartments are connected by an opening in a wall common thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
406+, for systems controlled by the weight of accumulated fluid which is sensed in a communicating chamber.
428, for liquid level responsive or maintaining systems having a control float in a separate communicating float chamber.
