The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2000
Filed:
Apr. 30, 1998
Raymond R Senechal, East Hartford, CT (US);
Gary D Althenhein, Enfield, CT (US);
Donald D Zaccara, Winsted, CT (US);
Stephen G Bransfield, Kensington, CT (US);
Robert E Bryan, Bloomfield, CT (US);
Arthur G King, Southwick, MA (US);
Glenn J McCloskey, Canton, CT (US);
Frank J Safryn, East Granby, CT (US);
Stephen J Wilkosz, Vernon, CT (US);
Paul L Yanosy, Enfield, CT (US);
ABB Combustion Engineering Nuclear Power, Inc., Windsor, CT (US);
Abstract
A digital plant protection system for use in nuclear power plants of the pressurized water type includes cross-connected sensed-parameter processing channels that provide a suitably conditioned digital value to a digital comparator that tests the conditional digital value against a predetermined value to determine whether or not the sensed parameter has been exceeded. A comparator is associated with each of the plural channels and receives a separate measurement of the sensed parameter for each channel. If a sensed-parameter is determined to be out-of-specification by 2 of 4 or more channels, a `trip` signal is generated to effect remedial action.