US PATENT SUBCLASS 291 / 11.2
.~.~ Multiple fluid inlets for delivery pipe

Current as of: June, 1999
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291 /   HD   TRACK SANDERS

3  DF  FLUID DELIVERY {7}
11.1  DF  .~ Including sand trap {2}
11.2.~.~ Multiple fluid inlets for delivery pipe

DEFINITION

Classification: 291/11.2

Multiple fluid inlets for delivery pipe:

(under subclass 11.1) Device having two openings or nozzles though which the fluid flows to engage and move the sand to or through the delivery pipe.

(1) Note. A service must have two openings or nozzles associated with a single, common delivery pipe for inclusion in this subclass.

(2) Note. In a device of this subclass, the fluid can flow from the two openings or nozzles concurrently or at different times. Devices having a particular fluid delivery nozzle in combination with a cleanout blast nozzle or stirring nozzle are included in this subclass.

(3) Note. A device in which fluid flowing from one opening or nozzle induces additional flow from a second opening or nozzle is included in this subclass.