US PATENT SUBCLASS 137 / 565.3-- .~.~.~ Serial

US PATENT SUBCLASS 137 / 565.3
.~.~.~ Serial

Current as of: June, 1999
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137 /	HD	FLUID HANDLING

561 R	DF	SYSTEMS {32}
565.01	DF	.~ With pump {11}
565.29	DF	.~.~ Plural {2}
565.3		.~.~.~ Serial {1}
565.31	DF	.~.~.~.~> With single motive input {1}

DEFINITION

Classification: 137/565.3

Serial:

(under subclass 565.29) Subject matter wherein two or more pumps are arranged in regular succession for fluid communication with each other. [figure] [caption]Figure 1: A typical example of the subject matter. A - First housing; B - Second housing; C - First pump; D - Second pump; E - Booster pump; F - Spray gun.

SEE OR SEARCH THIS CLASS, SUBCLASS:

571+, for plural tanks or compartments which are connected for serial flow.

SEE OR SEARCH CLASS

417, Pumps,

201+, for a rotary nonexpansible pump in series with another diverse pump, subclasses 205+ for diverse pumps in series, subclasses 244+ for pumps with successive stages, subclasses 515+ for plural pumping chambers with mechanically actuated distributor, and subclasses 521+ for plural pumping chambers.