Patent · US Expired

Methods of servicing an elevator system

US4697243A · kind A · utility

96Cited by
15References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 25, 1985
Grant dateSep 29, 1987
Priority date
Expiry dateJul 25, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S706/918
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A method of integrating an expert system having a knowledge base of elevator trouble-shooting information into the working environment of elevator service personnel, without special training of such personnel, and without compromising the security of the knowledge base. The method includes an interactive initialization procedure which includes successive, successful user and knowledge base initiated communication links between the user and knowledge base, before actual access to the knowledge base is permitted.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.