Westinghouse Electric Corporation

Compagnie Francaise Des Petroles

Subsea Equipment Associates Limited

David M Edison

George T Hummert

Milton Sackin

Thomas D Moser

Francis T Thompson

Marvin Kurland

Delmar R Riffe

Robert J Spreadbury

Wing C Quan

Fred S Marton

David A Cooke

John N Ucovich

Richard D Olson

An interactive, real time elevator bank simulation system including a display panel, dispatcher control, and a processor unit. The display panel includes illuminable control devices and illuminable display devices which are controlled to represent movement of the various elevator cars of the bank. The control devices enable an operator to interact with the system, such as by entering traffic requests, and to observe in real time the results of the requests on the operation of the elevator bank. The operator initiated requests are processed by the processing unit, and the processing unit controls the illumination of the operator actuated control devices on the display panel. This positive feedback arrangement provides optical acknowledgment to the operator that his request has been received by the processor unit.

Elevator bank simulation system

Protective relay apparatus for electric power systems which logically relates the outputs of two algorithms to provide the fastest possible trip for the conditions of the post-fault voltage and current waveforms.

Protective relay apparatus

A remote monitoring and controlling system for sub-sea oil/gas production equipment includes a control station for generating an appropriate digital code signal to accomplish a desired function and a cooperating remote station station system for receiving the signal and processing it in order to perform the selected function after the receipt of the signal is confirmed at the control system and an execute digital signal is generated at the control system.

Remote monitoring and controlling system for subsea oil/gas production

An elevator system, and method of operating same, including a plurality of elevator cars mounted in a building to serve the floors therein. A system processor, having instructions stored in a memory, responds to predetermined system information to provide output signals for controlling the movement of the elevator cars. Predetermined lobby functions, such as quota control of elevator cars at the floor and dispatching therefrom, are provided by the instructions for a floor identified in the instructions. The floor for which such lobby functions are performed is changed in response to predetermined conditions, to any selected floor of the building, by means which changes the number of the identified floor in the associated instructions.

Elevator system

The primary and secondary core sections of a split core transformer forming an inductive coupler are secured within separate sealed containments in intimate contact with a thin non-magnetic portion of the respective containments which permits inductive coupling and decoupling of the primary and secondary core sections in corrosive fluid environments such as water. The sealed containments isolate the core sections from contact with the corrosive environment thus permitting the use of efficient laminated iron in otherwise corrosive environments.

Inductive coupler

A position control system, for use in positioning relative to a subsea well a subsea vehicle or a re-entry tool having thrusters, including a Doppler sonar system connected to the vehicle and operable for generating a Doppler pulse train signal having a pulse rate substantially proportional to the Doppler frequency produced by a change in the spatial position of the vehicle along a predetermined linear coordinate, whereby the occurrence of each pulse signal in the Doppler pulse train signal corresponds substantially to a predetermined linear distance, velocity measurement means coupled to the Doppler pulse train signal and operable for converting it into an equivalent velocity amplitude, a pulse generator operable for producing a predetermined number of pulse signals equivalent to a certain linear distance along the coordinate, up/down counter means operable for counting up from one signal and down from another signal, connection means operable for connecting the up/down counter means to the Doppler pulse train signal and the pulse generator for opposite counting therein, and drive means connected to the up/down counter means and operable for supplying the count therein as an error signal for controlling one of the thrusters.

Position control system for a subsea vehicle

A monitoring system for off-site monitoring, traffic study and/or trouble shooting of elevator installations. Communication between the remote monitoring site and a selected elevator installation is established via a direct dial telephone link. The remote monitoring site includes visual display means for displaying the operation of the selected elevator installation in real time, means for storing and analyzing status signals from the elevator installation, as well as for printing out the results of such an analysis, and control means for entering commands to be executed by the elevator system. In addition to observing the operation of the complete elevator installation, any combination of software and/or hardware at the elevator installation may be selectively monitored by substituting a system processor and/or simulated car controllers, both of which are located at the monitoring site, for those located at the elevator installation, and operating selected components at the elevator installation along with those at the monitoring site via the communication link. The operation of the resulting hybrid system including its response to commands initiated at the monitoring site may be displayed and/or analyzed, as desired.

Growing community of inventors

Murrysville, PA, United States of America

David M Edison