THOMAS A BUTLER
Real Estate Commission in Pittsburgh, PA

License number
Pennsylvania RS184508L
Category
Real Estate Commission
Type
Real Estate Salesperson-Standard
Address
Address
Pittsburgh, PA 15236

Professional information

Thomas Butler Photo 1

Methods Of Servicing An Elevator System

US Patent:
4697243, Sep 29, 1987
Filed:
Jul 25, 1985
Appl. No.:
6/758984
Inventors:
William H. Moore - Bridgewater NJ
Charles M. Gutowski - Paramus NJ
William J. Trosky - Wilkinsburg PA
Thomas A. Butler - Pittsburgh PA
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
G06F 1100, B66B 300
US Classification:
364513
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.