US PATENT SUBCLASS 361 / 181
.~.~.~.~ Capacitance change-type

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

Internet Version by PATENTEC © 1999      Terms of Use


361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

139  DF  CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES {7}
160  DF  .~ For relays or solenoids {11}
170  DF  .~.~ Condition responsive (e.g., external circuit condition) {9}
179  DF  .~.~.~ Proximity or contact {2}
181.~.~.~.~ Capacitance change-type

DEFINITION

Classification: 361/181

Capacitance change-type:

(under subclass 179) Subject matter wherein the initiating device or circuit responds to a change in capacitance at the detecting electrode.