US PATENT SUBCLASS 417 / 156
.~.~.~ With spark arrester


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



417 /   HD   PUMPS

65  DF  ONE FLUID PUMPED BY CONTACT OR ENTRAINMENT WITH ANOTHER {10}
151  DF  .~ Jet {23}
155  DF  .~.~ Flue type {2}
156.~.~.~ With spark arrester


DEFINITION

Classification: 417/156

(under subclass 155) Apparatus in which the pumped fluid contains sparks or cinders and means are provided to separate out or reduce the size of the sparks or cinders prior to discharge from the pump.

SEE OR SEARCH CLASS

96, Gas Separation: Apparatus, appropriate subclasses, for spark arresters, per se. When a spark arrester is combined with a jet pump it is considered to be a perfecting feature of the pump and is classified in Class 417.