US PATENT SUBCLASS 418 / 84
.~ With condition responsive control of non-working fluid

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

Internet Version by PATENTEC © 1999      Terms of Use


418 /   HD   ROTARY EXPANSIBLE CHAMBER DEVICES

83  DF  HEAT EXCHANGE OR NON-WORKING FLUID LUBRICATING OR SEALING {13}
84.~ With condition responsive control of non-working fluid

DEFINITION

Classification: 418/84

Apparatus under 83 in which there is provided means for sensing either a condition of operation or a change in a condition of operation of the device and for controlling nonworking fluid flow in response thereto.

SEE OR SEARCH CLASS

417, Pumps,

228, for similar subject matter in which the pump is of the reciprocating type.