(under subclass 565.01) Subject matter including regulating means for varying the flow of a gas or liquid. [figure] [caption]Figure 1: A typical example of the subject matter. A - Gas pump; B - Conduit; C - Barrier or restriction; D - Materially reduced opening; E - Branch pipe to burner.
(1) Note. Patents for pump motor control are classified elsewhere. See SEARCH CLASS notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
109+, for a self-controlled branched flow system.
SEE OR SEARCH CLASS
415, Rotary Kinetic Fluid Motors or Pumps,
110+, for an internal fluid biased seal or packing.
417, Pumps, for pump motor control; 270, for condition responsive fluid control; and subclasses 279+ for condition responsive control of pumped fluid.
