US PATENT SUBCLASS 55 / 283
.~ With automatic control of cleaning means


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

Internet Version by PATENTEC © 1999      Terms of Use



55 /   HD   GAS SEPARATION

282  DF  WITH NONLIQUID CLEANING MEANS FOR SEPARATING MEDIA {13}
283.~ With automatic control of cleaning means


DEFINITION

Classification: 55/283

(under subclass 282) Apparatus comprising a means to sense a condition which may or may not occur, or a lack of such condition, or the result of such condition, the sensing means causing or permitting operation of a separate means for controlling said cleaning agent applying means, said constituent removing means or said accumulation preventing means, without the intervention of a human attendant.

(1) Note. An example of an automatic means under this definition is a device in which a diaphragm, responding to a differential pressure across the media, an increased pressure upstream of the media or a decreased pressure downstream of the media, moves a stem attached to the diaphragm to open a valve for applying a cleaning agent to the media.

An example of means which is not automatic control under this definition is a motor or clock driven cam which controls the valve for applying a cleaning agent at predetermined times or revolutions.