Patents by Inventor James S. Westrum

James S. Westrum has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of data entry into a plant loop
    Patent number: 5164894
    Abstract: A plant loop communication system utilizing a plurality of Loop Interface Slave (LIS) modules, each of which being an intelligent slave module incorporating its own microprocessor, is described. The use of such a module permits off-load processing so that receiving, transmitting and message processing cam occur simultaneously. A Superloop Bus Module (SBM) contains a data base which allows the asynchronous operation of the system. A Superloop Storage Module (SSM) stores data for transmission onto the loop and/or incoming data for transmission to an operator console.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: November 17, 1992
    Assignee: Elsag International B.V.
    Inventors: John Cunningham-Reid, James S. Westrum, Edward D. Janecek