US PATENT SUBCLASS 187 / 248
.~ Includes redundant circuitry

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

Internet Version by PATENTEC © 1999      Terms of Use


187 /   HD   ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE

247  DF  HAVING COMPUTER CONTROL OF ELEVATOR {1}
248.~ Includes redundant circuitry

DEFINITION

Classification: 187/248

Includes redundant circuitry:

(under subclass 247) Subject matter also having a secondary central processing unit, components of the control*, or means for carrying electric current therebetween which assumes the function of its equivalent in response to the failure of either the primary central processing unit, components of the control*, or means for carrying electric current therebetween.