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:
Jan. 02, 1996
Filed:
Jul. 29, 1994
Applicant:
Inventors:
James M Alexander, Valparaiso, IN (US);
Russell K McComb, Jr, DeMotte, IN (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340578 ; 340540 ; 356-5 ; 266 81 ; 266267 ; 266269 ;
Abstract
A blast furnace tuyere sensor system comprising a conditioning circuit including a D.C. power supply, a potentiometer for base loading circuit voltage, and a photosensitive resistor sensor which outputs an analog voltage signal proportional to the intensity of the light falling on the sensor, and method and means to measure the output voltage signal and to actuate alarms when the measured voltage signal deviates in a predetermined manner or amount from the base load voltage indicative of a plugged tuyere, a bright tuyere or a defective sensor.