US PATENT SUBCLASS 166 / 223
.~ Rotary or projectable

Current as of: June, 1999
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166 /   HD   WELLS

222  DF  WHIRLING OR LATERAL DISCHARGE OR PROJECTABLE NOZZLES {1}
223.~ Rotary or projectable

DEFINITION

Classification: 166/223

(under subclass 222) Devices in which the means for directing the fluid turns about an axis on the casing or tubing or is capable of being projected from the tubing or casing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

100, for well devices with a lateral probe or port sealed against the well wall.